Changes for page 3.3 Control
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... ... @@ -12,37 +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 cell, Ohm;17 -* **Relax time (after charging)**– a relaxation time after charging, second;18 -* **Relax time (after discharging)**– the relaxation time after discharging, second;19 -* **Reset parameters**– a command to reset cells state of charge, capacity, and resistance.15 +* Cell capacity – nominal capacity of cells, Ah; 16 +* Cell resistance – nominal (maximum) internal resistance of the cell, Ohm; 17 +* Relax time (after charging) – a relaxation time after charging, second; 18 +* Relax time (atfer discharging) – the relaxation time after discharging, second; 19 +* Reset parameters– a command to reset cells state of charge, capacity, and resistance. 20 20 21 -The values “ **Capacity**” and “**Resistance**” are used to calculate the SOC of cells and the battery.21 +The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery. 22 22 23 -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.23 +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. 24 24 25 -The “ **Reset parameters**”is used for starting-up and adjustment of the battery andwill reset:25 +The “Reset parameters” will reset: 26 26 27 27 * 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); 28 28 * cell resistance to “Cell resistance” value; 29 29 * battery capacity to “Cell capacity” value. 30 30 31 +The “Reset parameters” command is used for starting-up and adjustment of the battery. 32 + 31 31 === SOC estimation === 32 32 33 -The BMS Mini S / BMS Minidevice calculates the state of charge(SOC)ofeachcellby usingfollowingalgorithms:35 +The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms: 34 34 35 -The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C). 37 +* by open circuit voltage; 38 +* by voltage and current. 36 36 37 - The **“Current andvoltage(simplified)”** SOCcalculationalgorithmworksasfollows:40 +It is recommended to use the algorithm of calculation of SOC by voltage and current. 38 38 39 -* if I = 0, the battery is in the state of relaxation and the cell voltage Uocv is outside the [U,,ocv[point 1],,; U,,ocv[point 2],,], the SOC calculation is based on the tabular dependency Uocv = Uocv(SOC, t °C); 40 -* in any other cases, the SOC value is proportional to the charge (coulomb) passed through the battery (current time integral). 42 +To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section: 41 41 42 -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). 43 - 44 -To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section: 45 - 46 46 [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]] 47 47 48 48 The following estimation algorithms supported: ... ... @@ -64,30 +64,28 @@ 64 64 65 65 [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]] 66 66 67 - In thissection:65 +The following battery Final SOC calculation methods are supported: 68 68 69 -* **Algorithm:** 70 -** **Voltage **– by open circuit voltage; 71 -** **Current and voltage (simplified)** – recommended for LFP cells; 72 -** **Current and voltage (enhanced)** – recommended for NMC cells: 73 -* **Final SOC** – method of calculating overall SOC of battery: 74 -** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells; 75 -** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC; 76 -** **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; 77 -** **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. 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. 67 +* Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules; 68 +* Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules; 69 +* 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; 70 +* 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. 87 87 72 +Other parameters: 73 + 74 +* Scale the final SOC – a flag to scale the battery SOC by the following values; 75 +* SOC corresponding to 0% – the battery SOC that sets to be 0%; 76 +* SOC corresponding to 100% – the battery SOC that sets to be 100%. 77 +* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries); 78 +* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly: 79 +** Linear zone: point 1 – starting point of the Uocv linear zone; 80 +** Linear zone: point 2 – ending point of the Uocv linear zone; 81 +* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature; 82 +* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles. 83 + 88 88 === SOC correction === 89 89 90 -The BMS Mini S / BMS Minidevice 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"]]).86 +The BMS Mini 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 ... ... @@ -95,12 +95,12 @@ 95 95 96 96 In this section: 97 97 98 -* **Enable**– a flag to enabletheSOC 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.94 +* Enable – a flag to enable SOC correction; 95 +* 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); 96 +* 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”. 97 +* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute; 98 +* Ignore the linear zone – a flag to ignore linear SOC zone while correction; 99 +* Last correction timestamp – time when last correction was made. 104 104 105 105 === Resistance estimation === 106 106 ... ... @@ -134,18 +134,16 @@ 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.133 +* Current stabilization time, millisecond; 134 +* 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; 135 +* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell; 136 +* Minimum SOC – minimum cell SOC value for resistance calculation; 137 +* 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) === 146 146 147 -The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch. 148 - 149 149 To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section: 150 150 151 151 [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] ... ... @@ -152,12 +152,12 @@ 152 152 153 153 In this section: 154 154 155 -* **Enable**– a flag to enable signal generation;156 -* **Minimum SOC**, %;157 -* **Tolerant SOC**, %;158 -* **Delay before setting the signal**, second;159 -* **Delay before clearing the signal**, second;160 -* **Lock**– lock the signal until the device is reset.149 +* Enable – a flag to enable signal generation; 150 +* Minimum SOC, %; 151 +* Tolerant SOC, %; 152 +* Delay before setting the signal, second; 153 +* Delay before clearing the signal, second; 154 +* Lock – lock the signal until the device is reset. 161 161 162 162 Signal generation conditions: 163 163 ... ... @@ -167,10 +167,13 @@ 167 167 168 168 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time. 169 169 164 +(% class="box infomessage" %) 165 +((( 166 +The "Low SOC signal" is indicative and can be output to a discrete output or a power switch. 167 +))) 168 + 170 170 === High charging current (signal) === 171 171 172 -The "High charging current" is indicative signal that can be output to a discrete output or a power switch. 173 - 174 174 To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section: 175 175 176 176 [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]] ... ... @@ -177,12 +177,12 @@ 177 177 178 178 In this section: 179 179 180 -* **Enable**– a flag to enable signal generation;181 -* **Maximum charging current**, А;182 -* **Tolerant charging current**, А;183 -* **Delay before setting the signal**, second;184 -* **Delay before clearing the signal**, second;185 -* **Lock**– lock the signal until the device is reset.177 +* Enable – a flag to enable signal generation; 178 +* Maximum charging current, А; 179 +* Tolerant charging current, А; 180 +* Delay before setting the signal, second; 181 +* Delay before clearing the signal, second; 182 +* Lock – lock the signal until the device is reset. 186 186 187 187 Signal generation conditions: 188 188 ... ... @@ -192,11 +192,16 @@ 192 192 193 193 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time. 194 194 192 +(% class="box infomessage" %) 193 +((( 194 +The "High charging current" signal is indicative and can be output to a discrete output or a power switch. 195 +))) 196 + 195 195 === Charge map === 196 196 197 -The BMS Mini S / BMS Minidevice calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.199 +The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 198 198 199 -Calculated current values are sen tto a charger or an intellectual load over the CAN bus.External devices based on received data provide correct battery operation.201 +Calculated current values are sending to a charger or an intellectual load over the CAN bus. 200 200 201 201 To configure parameters for determining the charge current limit, select the "Control → Charge map" section: 202 202 ... ... @@ -203,17 +203,17 @@ 203 203 [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]] 204 204 In this section: 205 205 206 -* **Enable**– a flag to start calculation of the charge current limit;207 -* **Maximum charge current**– a maximum allowable value of the charge current (under normal conditions), A;208 -* **Rate of change**– a rate of change the current limit to a new value (0 is for immediate change), A/s;209 -* **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;210 -* **Option 1: SOC x Temperature x Factor**– the dependence of the correction factor on SOC and battery temperature;211 -* **Option 2: Limit charge current by the contactor temperature**– a flag to enable correction of maximum allowable charging current**Kcc**depending on contactor temperature;212 -* **Option 2: Contactor temperature x Factor**– the dependence of the correction factor on SOC and contactor temperature;213 -* **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)214 -* **Option 3: Cell voltage x Factor**– the dependence of the correction factor on maximum cell voltage;215 -* **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;216 -* **Option 4: Cell temperature x Factor**– the dependence of the correction factor on maximum cell temperature.208 +* Enable – a flag to start calculation of the charge current limit; 209 +* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A; 210 +* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s; 211 +* 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; 212 +* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature; 213 +* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature; 214 +* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature; 215 +* 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) 216 +* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage; 217 +* 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; 218 +* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature. 217 217 218 218 Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows: 219 219 ... ... @@ -221,7 +221,7 @@ 221 221 222 222 === Discharge map === 223 223 224 -The BMS Mini S / BMS Minidevice calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.226 +The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 225 225 226 226 Calculated current values are sending to a charger or an intellectual load over the CAN bus. 227 227 ... ... @@ -231,17 +231,17 @@ 231 231 232 232 In this section: 233 233 234 -* **Enable**– a flag to start calculation of the discharge current limit;235 -* **Maximum discharge current**– a maximum allowable value of the discharge current (under normal conditions), A;236 -* **Rate of change**– a rate of change the current limit to a new value (0 is for immediate change), A/s;237 -* **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;238 -* **Option 1: SOC x Temperature x Factor**– the dependence of the correction factor on SOC and battery temperature;239 -* **Option 2: Limit discharge current by the contactor temperature**– a flag to enable correction of maximum allowable discharging current**Kdc**depending on contactor temperature;240 -* **Option 2: Contactor temperature x Factor**– the dependence of the correction factor on SOC and contactor temperature;241 -* **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)242 -* **Option 3: Cell voltage x Factor**– the dependence of the correction factor on minimum cell voltage;243 -* **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;244 -* **Option 4: Cell voltage x Factor**– the dependence of the correction factor on minimum cell temperature.236 +* Enable – a flag to start calculation of the discharge current limit; 237 +* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A; 238 +* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s; 239 +* 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; 240 +* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature; 241 +* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature; 242 +* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature; 243 +* 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) 244 +* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage; 245 +* 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; 246 +* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature. 245 245 246 246 Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows: 247 247 ... ... @@ -249,23 +249,26 @@ 249 249 250 250 === Main contactor === 251 251 252 -The BMS Mini S / BMS Minidevice 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.254 +The BMS Mini 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 a case of sealing of the charging or discharging contactors. 253 253 254 254 The Main contactor algorithm supports the following modes: 255 255 256 -In **“Always on”** mode main contactor closes if all the following is true: 258 +* Always on; 259 +* Automatic. 257 257 261 +In “Always on” mode main contactor closes if all the following is true: 262 + 258 258 * Other contactors are open; 259 -* There are __no errors__from the "Errors 1, 2 ..." bitfileds.264 +* There are no errors from the "Errors 1, 2 ..." bitfileds. 260 260 261 -and opens if all the following is true: 266 +In “Always on” mode main contactor opens if all the following is true: 262 262 263 263 * Other contactors are open; 264 -* There is __an error__from the the "Errors 1, 2 ..." bitfileds.269 +* There is an error from the the "Errors 1, 2 ..." bitfileds. 265 265 266 -In **“Automatic”**mode, the main contactor closes by internal algorithms at the same time with other contactors.271 +In “Automatic” mode, the main contactor closes by internal algorithms at the same time with other contactors. 267 267 268 -In **“On demand”**mode, the main contactor closes by external the “Close Main contactor” request.273 +In “On demand” mode, the main contactor closes by external the “Close Main contactor” request. 269 269 270 270 (% class="box infomessage" %) 271 271 ((( ... ... @@ -274,38 +274,38 @@ 274 274 275 275 To change the parameters of the main contactor, select the "Control → Main contactor" section: 276 276 277 -[[image:177 7563933065-421.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]282 +[[image:1740397558976-651.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]] 278 278 279 279 In this section: 280 280 281 -* **Enable**– a flag to enable the main contactor control;282 -* **Algorithm**– main contactor control algorithm:283 -** **Always on**– contactor is always closed;284 -** **Automatic**– contactor closes by internal charge and discharge algorithms;285 -** **On demand**– contactor is closed by an external request;286 -* **Time to keep the contactor closed before closing the others**– a time for other contactors to be open after the main contactor is closed;287 -* **Delay before opening the contactor**– a time which is used to detect conditions for opening the contactor, s;288 -* **Keep the contactor open until the device is restarted**– a flag for keeping the main contactor open until the system is reset;289 -* **Errors 1, 2 to open the main contactor**– bitfields to choose the errors which will open the main contactor.286 +* Enable – a flag to enable the main contactor control; 287 +* Algorithm – main contactor control algorithm: 288 +** Always on – contactor is always closed; 289 +** Automatic – contactor closes by internal charge and discharge algorithms; 290 +** On demand – contactor is closed by an external request; 291 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed; 292 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s; 293 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset; 294 +* Errors 1, 2 to open the main contactor – bitfields to choose the errors which will open the main contactor. 290 290 291 291 === Charging status === 292 292 293 293 To change the parameters of charging process status, select the "Control → Charging status" section: 294 294 295 - 300 +[[image:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]] 296 296 In this section: 297 297 298 -* **Current to set the "Charging current present"**– a current level to generate the "Charging current present" signal, A;299 -* **Current to clear the "Charging current present"**– a current level to clear the "Charging current present" signal, A;300 -* **Voltage toclear the“Ready to charge”**– athresholdU,,ocv,, (corrected due tocurrent andcell resistance)voltagelevelon thecell, V; ifthe voltage of anycell is abovethis level, the “Ready to charge”(hence, the “Allow charging”)signalis cleared;301 -* **Voltage toreset the“Ready to charge”** –atolerantU,,ocv,, (correcteddue tocurrentand cell resistance) voltage levelonthecell,V;ifall cellvoltagesarebelowthe tolerantlevel, the “Ready to charge”(hence, the “Allowcharging”)signal is set;302 -* **Use actual voltage togeneratethe"Ready to charge"signal**– aflagto disable voltagecorrectionfor"Ready to charge"signal;303 -* **Treatnegative currentsas zero currentsforgeneratingthe"Readytocharge"signal** – a flagtodisable voltagecorrectionfor"Ready to charge"signalatdischargingcurrent;304 -* **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;305 -* **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;306 -* **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;307 -* **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;308 -* **Errors 1, 2 to clear the "Ready to charge"**– bitfields to choose the errors which will clear the "Ready to charge" signal.303 +* Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A; 304 +* Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A; 305 +* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal; 306 +* Use actual voltage to generate the "Ready to charge" signal if the current is negative – a flag to disable voltage correction for "Ready to charge" signal only at discharging current; 307 +* 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; 308 +* 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; 309 +* 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; 310 +* 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; 311 +* 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; 312 +* 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; 313 +* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal. 309 309 310 310 (% class="box infomessage" %) 311 311 ((( ... ... @@ -329,7 +329,6 @@ 329 329 * 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; 330 330 * 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; 331 331 * 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; 332 -* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set; 333 333 * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal. 334 334 335 335 === Precharge === ... ... @@ -479,7 +479,7 @@ 479 479 480 480 === Charge/Discharge === 481 481 482 -The BMS Mini S / BMS Minidevice can control the charging/discharging contactor that is used to both charge and discharge the battery.486 +The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery. 483 483 484 484 Charge/Discharge contactor has three algorithms of operation: 485 485 ... ... @@ -516,7 +516,7 @@ 516 516 517 517 === Discharge (AUX) === 518 518 519 -The BMS Mini S / BMS Minidevice can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.523 +The BMS Mini device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices. 520 520 521 521 The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program. 522 522 ... ... @@ -569,9 +569,9 @@ 569 569 If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed. 570 570 ))) 571 571 572 -The BMS Mini S / BMS Minidevice 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.576 +The BMS Mini device 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. 573 573 574 -BMS Mini S / BMS Minidevice can force a cell balancing, if its voltage is higher than estimated value.578 +BMS Mini device can force a cell balancing, if its voltage is higher than estimated value. 575 575 576 576 To change the cell balancing parameters, select the "Control → Cell balancing" section: 577 577 ... ... @@ -595,7 +595,7 @@ 595 595 596 596 === Power down === 597 597 598 -The BMS Mini S / BMS Minidevice can shut down itself if the battery voltage is low or the battery is idle for a long time.602 +The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time. 599 599 600 600 Shutting down the battery system is performed according to the following conditions: 601 601 ... ... @@ -602,7 +602,7 @@ 602 602 * the battery voltage is below the minimum level; 603 603 * the “Charger connected” signal is cleared for 60 seconds. 604 604 605 -The BMS Mini S / BMS Minidevice also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.609 +The BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time. 606 606 607 607 To change the parameters of the power down control, select the "Control → Power down" section: 608 608 ... ... @@ -618,13 +618,13 @@ 618 618 619 619 To change the parameters of the heater control algorithm, select the "Control → Heater" section: 620 620 621 -[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] 625 + 626 +[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]] 622 622 In this section: 623 623 624 624 * Enable – a flag to enable heater control; 625 625 * Minimum cell temperature, °C; 626 626 * Tolerant cell temperature, °C; 627 -* Start the heater only if "Charger connected" signal is set; 628 628 * Delay before starting the heater, millisecond; 629 629 * Delay before stopping the heater, millisecond; 630 630 * Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater. ... ... @@ -678,7 +678,7 @@ 678 678 679 679 Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C), which is necessary for calculating the state of charge of the battery. 680 680 681 -The BMS Mini S / BMS Minidevice can automatically determine the battery discharge characteristic.685 +The BMS Mini device can automatically determine the battery discharge characteristic. 682 682 683 683 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 684 684
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