Changes for page 3.3 Control
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... ... @@ -12,35 +12,37 @@ 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 (a tfer 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 (after 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” will reset: 25 +The “**Reset parameters**” is used for starting-up and adjustment of the battery and 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 - 33 33 === SOC estimation === 34 34 35 -The BMS Mini device calculates the state of charge of the battery(SOC)usingtwo algorithms:33 +The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms: 36 36 37 -* by open circuit voltage; 38 -* by voltage and current. 35 +The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C). 39 39 40 - It isrecommendedtousethealgorithmof calculation ofSOC by voltageandcurrent.37 +The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows: 41 41 42 -To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section: 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). 43 43 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 + 44 44 [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]] 45 45 46 46 The following estimation algorithms supported: ... ... @@ -62,28 +62,30 @@ 62 62 63 63 [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]] 64 64 65 - The followingbattery FinalSOCcalculationmethods are supported:67 +In this section: 66 66 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. 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. 71 71 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 - 84 84 === SOC correction === 85 85 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"]]). 90 +The BMS Mini S / 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"]]). 87 87 88 88 To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section: 89 89 ... ... @@ -91,12 +91,12 @@ 91 91 92 92 In this section: 93 93 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.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. 100 100 101 101 === Resistance estimation === 102 102 ... ... @@ -130,16 +130,18 @@ 130 130 131 131 In this section: 132 132 133 -* 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.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. 138 138 139 139 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). 140 140 141 141 === Low SOC (signal) === 142 142 147 +The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch. 148 + 143 143 To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section: 144 144 145 145 [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] ... ... @@ -146,12 +146,12 @@ 146 146 147 147 In this section: 148 148 149 -* 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.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. 155 155 156 156 Signal generation conditions: 157 157 ... ... @@ -161,13 +161,10 @@ 161 161 162 162 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time. 163 163 164 -(% 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 - 169 169 === High charging current (signal) === 170 170 172 +The "High charging current" is indicative signal that can be output to a discrete output or a power switch. 173 + 171 171 To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section: 172 172 173 173 [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]] ... ... @@ -174,12 +174,12 @@ 174 174 175 175 In this section: 176 176 177 -* 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. 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. 183 183 184 184 Signal generation conditions: 185 185 ... ... @@ -189,16 +189,11 @@ 189 189 190 190 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time. 191 191 192 -(% 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 - 197 197 === Charge map === 198 198 199 -The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 197 +The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 200 200 201 -Calculated current values are sen dingto a charger or an intellectual load over the CAN bus.199 +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. 202 202 203 203 To configure parameters for determining the charge current limit, select the "Control → Charge map" section: 204 204 ... ... @@ -205,17 +205,17 @@ 205 205 [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]] 206 206 In this section: 207 207 208 -* 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.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. 219 219 220 220 Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows: 221 221 ... ... @@ -223,7 +223,7 @@ 223 223 224 224 === Discharge map === 225 225 226 -The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 224 +The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 227 227 228 228 Calculated current values are sending to a charger or an intellectual load over the CAN bus. 229 229 ... ... @@ -233,17 +233,17 @@ 233 233 234 234 In this section: 235 235 236 -* 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.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. 247 247 248 248 Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows: 249 249 ... ... @@ -251,26 +251,23 @@ 251 251 252 252 === Main contactor === 253 253 254 -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 acase of sealing of the charging or discharging contactors.252 +The BMS Mini S / 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 case of sealing of the charging or discharging contactors. 255 255 256 256 The Main contactor algorithm supports the following modes: 257 257 258 -* Always on; 259 -* Automatic. 256 +In **“Always on”** mode main contactor closes if all the following is true: 260 260 261 -In “Always on” mode main contactor closes if all the following is true: 262 - 263 263 * Other contactors are open; 264 -* There are no errorsfrom the "Errors 1, 2 ..." bitfileds.259 +* There are __no errors__ from the "Errors 1, 2 ..." bitfileds. 265 265 266 - In “Always on” modemain contactor opens if all the following is true:261 +and opens if all the following is true: 267 267 268 268 * Other contactors are open; 269 -* There is an errorfrom the the "Errors 1, 2 ..." bitfileds.264 +* There is __an error__ from the the "Errors 1, 2 ..." bitfileds. 270 270 271 -In “Automatic”mode, the main contactor closes by internal algorithms at the same time with other contactors.266 +In **“Automatic”** mode, the main contactor closes by internal algorithms at the same time with other contactors. 272 272 273 -In “On demand”mode, the main contactor closes by external the “Close Main contactor” request.268 +In **“On demand”** mode, the main contactor closes by external the “Close Main contactor” request. 274 274 275 275 (% class="box infomessage" %) 276 276 ((( ... ... @@ -279,35 +279,38 @@ 279 279 280 280 To change the parameters of the main contactor, select the "Control → Main contactor" section: 281 281 282 -[[image:17 40397558976-651.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]277 +[[image:1777563933065-421.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]] 283 283 284 284 In this section: 285 285 286 -* 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.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. 295 295 296 296 === Charging status === 297 297 298 298 To change the parameters of charging process status, select the "Control → Charging status" section: 299 299 300 - [[image:1754931721385-562.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="124" width="800"]]295 + 301 301 In this section: 302 302 303 -* 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 -* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal. 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 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; 301 +* **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; 302 +* **Use actual voltage to generate the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal; 303 +* **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; 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. 311 311 312 312 (% class="box infomessage" %) 313 313 ((( ... ... @@ -320,8 +320,7 @@ 320 320 321 321 To change the parameters of discharging process status, select the "Control → Discharging status" section: 322 322 323 -[[image:1754931699901-802.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]] 324 -In this section: 321 +[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section: 325 325 326 326 * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А; 327 327 * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А; ... ... @@ -329,6 +329,10 @@ 329 329 * Use actual voltage to generate the "Ready to discharge" signal if the current is positive – a flag to disable voltage correction for "Ready to discharge" signal only at charging current; 330 330 * 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; 331 331 * 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; 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 +* 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 +* 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; 332 332 * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal. 333 333 334 334 === Precharge === ... ... @@ -337,9 +337,11 @@ 337 337 338 338 BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. Also BMS can measure the power dissipated on precharge resistor and generate an error if it greater than configured limit. 339 339 341 +To change the parameters of precharge contactor, select the "Control → Precharge" section: 342 + 340 340 [[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]] 341 341 342 - To changethe parametersof precharge contactor,selectthe "Control → Precharge" section:345 +In this section: 343 343 344 344 * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A; 345 345 * 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; ... ... @@ -476,7 +476,7 @@ 476 476 477 477 === Charge/Discharge === 478 478 479 -The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery. 482 +The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery. 480 480 481 481 Charge/Discharge contactor has three algorithms of operation: 482 482 ... ... @@ -513,7 +513,7 @@ 513 513 514 514 === Discharge (AUX) === 515 515 516 -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. 519 +The BMS Mini S / 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. 517 517 518 518 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. 519 519 ... ... @@ -566,9 +566,9 @@ 566 566 If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed. 567 567 ))) 568 568 569 -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. 572 +The BMS Mini S / 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. 570 570 571 -BMS Mini device can force a cell balancing, if its voltage is higher than estimated value. 574 +BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value. 572 572 573 573 To change the cell balancing parameters, select the "Control → Cell balancing" section: 574 574 ... ... @@ -592,7 +592,7 @@ 592 592 593 593 === Power down === 594 594 595 -The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time. 598 +The BMS Mini S / BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time. 596 596 597 597 Shutting down the battery system is performed according to the following conditions: 598 598 ... ... @@ -599,7 +599,7 @@ 599 599 * the battery voltage is below the minimum level; 600 600 * the “Charger connected” signal is cleared for 60 seconds. 601 601 602 -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. 605 +The BMS Mini S / 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. 603 603 604 604 To change the parameters of the power down control, select the "Control → Power down" section: 605 605 ... ... @@ -615,13 +615,13 @@ 615 615 616 616 To change the parameters of the heater control algorithm, select the "Control → Heater" section: 617 617 618 - 619 -[[image:1740404973346-344.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]] 621 +[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] 620 620 In this section: 621 621 622 622 * Enable – a flag to enable heater control; 623 623 * Minimum cell temperature, °C; 624 624 * Tolerant cell temperature, °C; 627 +* Start the heater only if "Charger connected" signal is set; 625 625 * Delay before starting the heater, millisecond; 626 626 * Delay before stopping the heater, millisecond; 627 627 * Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater. ... ... @@ -675,7 +675,7 @@ 675 675 676 676 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. 677 677 678 -The BMS Mini device can automatically determine the battery discharge characteristic. 681 +The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic. 679 679 680 680 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 681 681
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