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Changes for page 3.3 Control

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From version 39.4
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To version 76.6
edited by Admin
on 2026/03/31 12:58
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Summary

Details

Page properties
Content
... ... @@ -12,47 +12,35 @@
12 12  
13 13  In this section:
14 14  
15 -* Cell capacity – nominal capacity of cells, Ah;
16 -* Cell resistance – nominal (maximum) internal resistance of the cells, Ohm;
17 -* Relax time (after charging) – a relaxation time after charging, second;
18 -* Relax time (atfer discharging) – a relaxation time after discharging, second;
19 -* Reset parameters – a command to reset cells state of charge, capacity, and resistance;
20 -* Method of calculating the battery voltage:
21 -** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery;
22 -** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS.
15 +* **Cell capacity** – nominal capacity of cells, Ah;
16 +* **Cell resistance** – nominal (maximum) internal resistance of the cells, Ohm;
17 +* **Connection of cells:**
18 +** **Serial **– all cells are connected in series in a single string.
19 +** **Parallel-Serial **– cells are grouped in parallel and serial items;
20 +* **Parallel-Serial: Number of Logic devices in a chain**;
21 +* **Parallel-Serial: Number of parallel chains in a block**;
22 +* **Parallel-Serial: Number of serial blocks in a string**;
23 +* **Relax time (after charging)** – a relaxation time after charging, second;
24 +* **Relax time (atfer discharging)** – a relaxation time after discharging, second;
25 +* **Reset SOC** – a command to reset cells state of charge. New cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section;
26 +* **Reset resistance** – a command to reset cells resistance to “Cell resistance” value;
27 +* **Reset capacity** – a command to reset cells capacity to “Cell capacity” value;
28 +* **Method of calculating the battery voltage***:
29 +** **Summation of cell voltages** – the overall voltage is calculated as on sum of all cells in the battery;
30 +** **Using voltage before contactors** – the overall voltage is estimated as voltage before contactors measured by BMS.
23 23  
24 -The values “Capacity”, “Resistance”, “Cycles” are used to calculate the SOC of cells and the battery.
32 +The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be estimated as a fraction of overall current accordingly to the number of chains in a block.
25 25  
26 -The values of “Relax time” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
34 +The values **“Capacity”** and **“Resistance”** are used to calculate the SOC of cells and the battery.
27 27  
28 -The “Reset parameters” will reset:
36 +The values of **“Relax time”** are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
29 29  
30 -* state of charge (new cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section);
31 -* cell resistance to “Cell resistance” value;
32 -* battery capacity to “Cell capacity” value.
38 +The **“Reset SOC”, "Reset resistance" **and **"Reset capacity"** command is used for starting-up and adjustment of the battery.
33 33  
34 -The “Reset parameters” command is used for starting-up and adjustment of the battery.
35 -
36 36  === SOC estimation ===
37 37  
38 -The BMS Main 3 device calculates the state of charge of the battery (SOC) using two algorithms:
42 +The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell, and then the overall battery SOC, by using following algorithms:
39 39  
40 -* by open circuit voltage;
41 -* by voltage and current.
42 -
43 -It is recommended to use the algorithm of calculation of SOC by voltage and current.
44 -
45 -To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
46 -
47 -
48 -[[image:1735056107942-306.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
49 -
50 -The following estimation algorithms supported:
51 -
52 -* Voltage – by open circuit voltage;
53 -* Current and voltage (simplified) – recommended for LFP cells;
54 -* Current and voltage (enhanced) – recommended for NMC cells.
55 -
56 56  The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
57 57  
58 58  The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
... ... @@ -62,32 +62,34 @@
62 62  
63 63  The **“Current and voltage (enhanced)” **SOC calculation algorithm differs from the simplified algorithm by online correction of the effective capacity. When using this algorithm, it is necessary to fine tune the tabular dependence Uocv = Uocv (SOC, t °C).
64 64  
65 -To change the algorithm for calculating the Final SOC, select the "Control → SOC estimation → Final SOC" section:
53 +To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section:
66 66  
67 67  [[image:1733322611551-852.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]]
68 68  
69 -The following calculation methods are supported (“Final SOC”):
57 +In this section:
70 70  
71 -* Minimal SOC – the battery SOC is assumed to be the minimum SOC among the cells;
72 -* Average SOC – the battery SOC is taken equal to the arithmetic average of the cell SOC;
73 -* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell has 100% SOC, b) 0% if any cell has 0% SOC;
74 -* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC;
59 +* **Algorithm:**
60 +** **Voltage **– by open circuit voltage;
61 +** **Current and voltage (simplified)** – recommended for LFP cells;
62 +** **Current and voltage (enhanced)** – recommended for NMC cells:
63 +* **Final SOC** – method of calculating overall SOC of battery:
64 +** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells;
65 +** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC;
66 +** **Min-Max SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells (recommended). Final SOC will be a) 100% if __any cell__ has 100% SOC, b) 0% if __any cell__ has 0% SOC;
67 +** **Max-Min SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if __all cells__ have 100% SOC, b) 0% if __all// //cells__ have 0% SOC.
68 +* **Scale the final SOC** – a flag to scale the battery SOC by the following values;
69 +* **SOC corresponding to 0%** – the battery SOC that sets to be 0%;
70 +* **SOC corresponding to 100%** – the battery SOC that sets to be 100%.
71 +* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
72 +* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
73 +** **Linear zone: point 1** – starting point of the Uocv linear zone;
74 +** **Linear zone: point 2** – ending point of the Uocv linear zone;
75 +* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature;
76 +* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles.
75 75  
76 -Other parameters:
77 -
78 -* Scale the final SOC – a flag to scale the battery SOC by the following values;
79 -* SOC corresponding to 0% – the battery SOC that sets to be 0%;
80 -* SOC corresponding to 100% – the battery SOC that sets to be 100%.
81 -* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
82 -* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
83 -** Linear zone: point 1 – starting point of the Uocv linear zone;
84 -** Linear zone: point 2 – ending point of the Uocv linear zone;
85 -* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
86 -* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
87 -
88 88  === SOC correction ===
89 89  
90 -The BMS Main 3 device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
80 +The BMS Main 3 / BMS Main 2R device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
91 91  
92 92  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
93 93  
... ... @@ -95,13 +95,31 @@
95 95  
96 96  In this section:
97 97  
98 -* Enable – a flag to enable the SOC correction;
99 -* Shutdown period – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
100 -* Correction period – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
101 -* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
102 -* Ignore the linear zone – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 -* Last correction timestamp – time when last correction was made.
88 +* **Enable **– a flag to enable the SOC correction;
89 +* **Shutdown period** – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
90 +* **Correction period** – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
91 +* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
92 +* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset);
93 +* **Last correction timestamp** – time when last correction was made.
104 104  
95 +=== SOH estimation ===
96 +
97 +The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms:
98 +
99 +In **"By effective capacity" **mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge.
100 +
101 +In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function.
102 +
103 +To configure parameters for battery state of health calculation, select the "Control → SOH correction" section:
104 +
105 +[[image:1765447975228-766.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]In this section:
106 +
107 +* **Algorithm:**
108 +** **By effective capacity;**
109 +** **By total charge–;**
110 +* **Total charge: Charge–** –  total amount of charge– for expected SOH;
111 +* **Total charge: SOH** – expected SOH value at the total amount of charge–.
112 +
105 105  === Resistance estimation ===
106 106  
107 107  Calculation of the resistance of cells is carried out in two ways. The first method is used when the battery passes from a relaxation state to a charge or discharge state, wherein the cell resistance value
... ... @@ -134,16 +134,18 @@
134 134  
135 135  In this section:
136 136  
137 -* Current stabilization time, millisecond;
138 -* Maximum calculation period – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
139 -* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
140 -* Minimum SOC – minimum cell SOC value for resistance calculation;
141 -* Maximum SOC – maximum cell SOC value for resistance calculation.
145 +* **Current stabilization time**, millisecond;
146 +* **Maximum calculation period** – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
147 +* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell;
148 +* **Minimum SOC** – minimum cell SOC value for resistance calculation;
149 +* **Maximum SOC** – maximum cell SOC value for resistance calculation.
142 142  
143 143  The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance / 2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
144 144  
145 145  === Low SOC (signal) ===
146 146  
155 +The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch.
156 +
147 147  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
148 148  
149 149  [[image:1733322624660-513.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
... ... @@ -150,12 +150,12 @@
150 150  
151 151  In this section:
152 152  
153 -* Enable – a flag to enable signal generation;
154 -* Minimum SOC, %;
155 -* Tolerant SOC, %;
156 -* Delay before setting the signal, second;
157 -* Delay before clearing the signal, second;
158 -* Lock – lock the signal until the device is reset.
163 +* **Enable **– a flag to enable signal generation;
164 +* **Minimum SOC**, %;
165 +* **Tolerant SOC**, %;
166 +* **Delay before setting the signal**, second;
167 +* **Delay before clearing the signal**, second;
168 +* **Lock** – lock the signal until the device is reset.
159 159  
160 160  Signal generation conditions:
161 161  
... ... @@ -165,13 +165,10 @@
165 165  
166 166  * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
167 167  
168 -(% class="box infomessage" %)
169 -(((
170 -The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
171 -)))
172 -
173 173  === High charging current (signal) ===
174 174  
180 +The "High charging current" is indicative signal that can be output to a discrete output or a power switch.
181 +
175 175  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
176 176  
177 177  [[image:1733322624661-915.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
... ... @@ -178,12 +178,12 @@
178 178  
179 179  In this section:
180 180  
181 -* Enable – a flag to enable signal generation;
182 -* Maximum charging current, А;
183 -* Tolerant charging current, А;
184 -* Delay before setting the signal, second;
185 -* Delay before clearing the signal, second;
186 -* Lock – lock the signal until the device is reset.
188 +* **Enable **– a flag to enable signal generation;
189 +* **Maximum charging current**, А;
190 +* **Tolerant charging current**, А;
191 +* **Delay before setting the signal**, second;
192 +* **Delay before clearing the signal**, second;
193 +* **Lock **– lock the signal until the device is reset.
187 187  
188 188  Signal generation conditions:
189 189  
... ... @@ -193,14 +193,9 @@
193 193  
194 194  * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
195 195  
196 -(% class="box infomessage" %)
197 -(((
198 -The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
199 -)))
200 -
201 201  === Charge map ===
202 202  
203 -The BMS Main 3 device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
205 +The BMS Main 3 / BMS Main 2R device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
204 204  
205 205  Calculated current values are sent to a charger or an intellectual load over the CAN bus. External devices based on received data provide correct battery operation.
206 206  
... ... @@ -210,17 +210,17 @@
210 210  
211 211  In this section:
212 212  
213 -* Enable – a flag to start calculation of the charge current limit;
214 -* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
215 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
216 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on SOC and battery temperature;
217 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
218 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
219 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
220 -* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on maximum cell voltage;
221 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
222 -* Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
223 -* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
215 +* **Enable **– a flag to start calculation of the charge current limit;
216 +* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A;
217 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
218 +* **Option 1: Limit charge current by the battery SOC and temperature** – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
219 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
220 +* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
221 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
222 +* **Option 3: Limit charge current by the maximum cell voltage** – a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
223 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage;
224 +* **Option 4: Limit charge current by the cell temperature** – a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
225 +* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature.
224 224  
225 225  Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
226 226  
... ... @@ -228,7 +228,7 @@
228 228  
229 229  === Discharge map ===
230 230  
231 -The BMS Main 3 device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
233 +The BMS Main 3 / BMS Main 2R device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
232 232  
233 233  Calculated current values are sent to a charger or an intellectual load over the CAN bus.
234 234  
... ... @@ -238,17 +238,17 @@
238 238  
239 239  In this section:
240 240  
241 -* Enable – a flag to start calculation of the discharge current limit;
242 -* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
243 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
244 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on SOC and temperature;
245 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
246 -* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
247 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
248 -* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on minimum cell voltage;
249 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
250 -* Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
251 -* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
243 +* **Enable **– a flag to start calculation of the discharge current limit;
244 +* **Maximum discharge current** – a maximum allowable value of the discharge current (under normal conditions), A;
245 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
246 +* **Option 1: Limit discharging current by the battery SOC and temperature** – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
247 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
248 +* **Option 2: Limit discharge current by the contactor temperature** – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
249 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
250 +* **Option 3: Limit discharge current by the cell voltage** – a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
251 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on minimum cell voltage;
252 +* **Option 4: Limit discharge current by the cell temperature** – a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
253 +* **Option 4: Cell voltage x Factor** – the dependence of the correction factor on minimum cell temperature.
252 252  
253 253  Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows:
254 254  
... ... @@ -256,7 +256,7 @@
256 256  
257 257  === Charge map (PEAK & CONTINUOUS) ===
258 258  
259 -The BMS Main 3 has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes.
261 +The BMS Main 3 / BMS Main 2R has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes.
260 260  
261 261  To configure parameters for determining the charge current limit, select the "Control → Charge map (PEAK & CONTINUOUS)" section:
262 262  
... ... @@ -264,26 +264,26 @@
264 264  
265 265  In this section:
266 266  
267 -* Enable – a flag to start calculation of the charge current limit;
268 -* Maximum PEAK charge current – a maximum peak charge current (under normal conditions), A;
269 -* Maximum CONTINUOUS charge current – a maximum continuous charge current (under normal conditions), A;
270 -* PEAK: SOC x Temperature x Factor – the dependence of the correction factor for peak current K,,cp,, on SOC and battery temperature;
271 -* CONTINUOUS: SOC x Temperature x Factor – the dependence of the correction factor for continuous current K,,cc,, on SOC and battery temperature;
272 -* PEAK time – a time for peak current to be allowed, s;
273 -* Sliding time – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms;
274 -* Waiting time – a time for peak current to be prohibited, s.
269 +* **Enable **– a flag to start calculation of the charge current limit;
270 +* **Maximum PEAK charge current** – a maximum peak charge current (under normal conditions), A;
271 +* **Maximum CONTINUOUS charge current** – a maximum continuous charge current (under normal conditions), A;
272 +* **PEAK: SOC x Temperature x Factor** – the dependence of the correction factor for peak current K,,cp,, on SOC and battery temperature;
273 +* **CONTINUOUS: SOC x Temperature x Factor** – the dependence of the correction factor for continuous current K,,cc,, on SOC and battery temperature;
274 +* **PEAK time** – a time for peak current to be allowed, s;
275 +* **Sliding time** – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms;
276 +* **Waiting time** – a time for peak current to be prohibited, s.
275 275  
276 276  The maximum charging current value equals to the peak or continuous current according to the following diagram:
277 277  
278 278  [[image:1733322717451-608.png||data-xwiki-image-style-alignment="center"]]
279 279  
280 -I,,peak,, = Maximum PEAK charge current × K,,cp,,
282 +**I,,peak,, = Maximum PEAK charge current × K,,cp,,**
281 281  
282 -I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,
284 +**I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,**
283 283  
284 284  === Discharge map (PEAK & CONTINUOUS) ===
285 285  
286 -The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
288 +The BMS Main 3 / BMS Main 2R has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
287 287  
288 288  To configure parameters for determining the discharge current limit, select the "Control → Discharge map (PEAK & CONTINUOUS)" section:
289 289  
... ... @@ -291,32 +291,31 @@
291 291  
292 292  In this section:
293 293  
294 -* Enable – a flag to start calculation of the discharge current limit;
295 -* Maximum PEAK discharge current – a maximum peak discharge current (under normal conditions), A;
296 -* Maximum CONTINUOUS discharge current – a maximum continuous discharge current (under normal conditions), A;
297 -* PEAK: SOC x Temperature x Factor – the dependence of the correction factor for peak current K,,dp,, on SOC and battery temperature;
298 -* CONTINUOUS: SOC x Temperature x Factor – the dependence of the correction factor for continuous current K,,dc,, on SOC and battery temperature;
299 -* PEAK time – a time for peak current to be allowed, s;
300 -* Sliding time – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms;
301 -* Waiting time – a time for peak current to be prohibited, s.
296 +* **Enable **– a flag to start calculation of the discharge current limit;
297 +* **Maximum PEAK discharge current** – a maximum peak discharge current (under normal conditions), A;
298 +* **Maximum CONTINUOUS discharge current** – a maximum continuous discharge current (under normal conditions), A;
299 +* **PEAK: SOC x Temperature x Factor** – the dependence of the correction factor for peak current K,,dp,, on SOC and battery temperature;
300 +* **CONTINUOUS: SOC x Temperature x Factor** – the dependence of the correction factor for continuous current K,,dc,, on SOC and battery temperature;
301 +* **PEAK time** – a time for peak current to be allowed, s;
302 +* **Sliding time** – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms;
303 +* **Waiting time** – a time for peak current to be prohibited, s.
302 302  
303 303  The maximum discharging current value equals to the peak or continuous current according to following diagram:
304 304  
305 305  [[image:1733322753429-968.png||data-xwiki-image-style-alignment="center"]]
306 306  
307 -I,,peak,, = Maximum PEAK discharge current × K,,dp,,
309 +**I,,peak,, = Maximum PEAK discharge current × K,,dp,,**
308 308  
309 -I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,
311 +**I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,**
310 310  
311 311  === Main contactor ===
312 312  
313 -The BMS Main 3 device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
315 +The BMS Main 3 / BMs device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
314 314  
315 315  The Main contactor algorithm supports the following modes:
316 316  
317 317  * Always on;
318 -* Automatic;
319 -* On demand.
320 +* Automatic.
320 320  
321 321  In “Always on” mode main contactor closes if all the following is true:
322 322  
... ... @@ -357,13 +357,20 @@
357 357  
358 358  To change the parameters of charging process status, select the "Control → Charging status" section:
359 359  
360 -[[image:1735064935499-941.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]In this section:
361 +[[image:1771432488941-251.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="154" width="800"]]
361 361  
363 +In this section:
364 +
362 362  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
363 363  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
364 -* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
365 -* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
367 +* Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
368 +* Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
369 +* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
370 +* Treat negative currents as zero currents for generating the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal at discharging current;
366 366  * Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
372 +* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
373 +* Charge current limit to clear the 'Ready to charge' – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
374 +* Charge current limit to set the 'Ready to charge' – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
367 367  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
368 368  
369 369  (% class="box infomessage" %)
... ... @@ -377,12 +377,20 @@
377 377  
378 378  To change the parameters of discharging process status, select the "Control → Discharging status" section:
379 379  
380 -[[image:1735064980481-209.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]In this section:
388 +[[image:1771431570393-551.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
381 381  
390 +In this section:
391 +
382 382  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
383 383  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
384 -* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
385 -* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
394 +* Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
395 +* Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
396 +* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal;
397 +* Treat positive currents as zero currents for generating the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal at charging current;
398 +* Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
399 +* Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
400 +* Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
401 +* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
386 386  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
387 387  
388 388  === Precharge ===
... ... @@ -395,12 +395,14 @@
395 395  
396 396  To change the parameters of precharge contactor, select the "Control → Precharge" section:
397 397  
398 -[[image:1735065073836-743.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
414 +[[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
399 399  
400 400  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
401 401  * Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
402 402  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
419 +* Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
403 403  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
421 +* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
404 404  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
405 405  * Relaxation between attempts – a duration between precharge attempts, millisecond;
406 406  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -472,7 +472,7 @@
472 472  * Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
473 473  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
474 474  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
475 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor;
493 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
476 476  * Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
477 477  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
478 478  * Custom delay: <error> – delay for specific error, millisecond;
... ... @@ -511,8 +511,6 @@
511 511  **Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
512 512  )))
513 513  
514 -The device supports controlling the precharging contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]).
515 -
516 516  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
517 517  
518 518  [[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]]
... ... @@ -527,7 +527,7 @@
527 527  * Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
528 528  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
529 529  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
530 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor;
546 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
531 531  * Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
532 532  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
533 533  * Custom delay: <error> – specific error delay, millisecond;
... ... @@ -582,11 +582,6 @@
582 582  * the battery voltage is out of range;
583 583  * the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
584 584  
585 -(% class="box infomessage" %)
586 -(((
587 -**Note: **when errors occur in the system, the **Discharge (AUX) **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
588 -)))
589 -
590 590  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
591 591  
592 592  [[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
... ... @@ -603,7 +603,7 @@
603 603  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
604 604  * Minimum battery voltage, V;
605 605  * Maximum battery voltage, V;
606 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor;
617 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
607 607  
608 608  === Cell balancing ===
609 609  
... ... @@ -622,14 +622,17 @@
622 622  
623 623  A balancing resistor is disconnected from the cell if any of the following conditions are met:
624 624  
625 -* the voltage on the cell is less than the balancing start voltage;
636 +* the voltage on the cell is less than the balancing stop voltage;
626 626  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
627 627  
639 +(% class="box infomessage" %)
640 +(((
628 628  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
642 +)))
629 629  
630 630  The BMS Main 3 can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
631 631  
632 -BMS Main 3 can force a cell balancing, if its voltage is higher than wsti
646 +BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value.
633 633  
634 634  To change the cell balancing parameters, select the "Control → Cell balancing" section:
635 635  
... ... @@ -642,9 +642,6 @@
642 642  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
643 643  ** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states);
644 644  ** Balance always – balancing is always performed regardless the battery state;
645 -
646 -[[image:1735065666891-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="800"]]
647 -
648 648  * Balancing condition:
649 649  ** Automatic – balancing will be performed automatically if needed conditions are met;
650 650  ** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
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