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Changes for page 3.3 Control

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Summary

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209 209  The device controls two processes: **joining battery modules** and **closing the main discharging contactor**.
210 210  
211 211  
212 -The operation of the** joining battery modules** is described by the following steps:
212 +The operation of the** joining battery modules** is described by the following steps:
213 213  
214 214  1. Battery modules are disabled. When the “Join to discharge” request is received and the voltage and current unbalance errors (Voltage unbalance (DCH), Current unbalance (DCH), Discharging current unbalance) are cleared, go to step 2.
215 215  1. Checking the voltage unbalance of battery modules (the duration of the check is set in the settings). If there is no imbalance or errors are ignored (“Always on” and “Partially balanced”), go to step 3, otherwise open all discharging contactors, and go to step 1.
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280 280  
281 281  The operation of the **joining battery modules** depends on the signal received:
282 282  
283 -* If "Join to charge" is received, joining procedure is done as described in [[Charge>>https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203X/3.%20Configuration/3.3%20Control/#HCharge||anchor="HCharge"]] section;
283 +* If "Join to charge" is received, joining procedure is done as described in [[Charge>>https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203X/3.%20Configuration/3.3%20Control/#HCharge]] section;
284 284  * If "Join to discharge" is received, joining procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
285 285  * If both signals received, "Join to charge" has a priority.
286 286  
287 287  The operation of **closing main charging/discharging contactor **depends on the signal received:
288 288  
289 -* If "Charge request" is received, procedure is done as described in [[Charge>>url:https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203X/3.%20Configuration/3.3%20Control/#HCharge]] section;
290 -* If "Discharge request" is received, procedure is done as described in [[Discharge>>url:https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203X/3.%20Configuration/3.3%20Control/#HDischarge]] section;
289 +* If "Charge request" is received, procedure is done as described in [[Charge>>https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203X/3.%20Configuration/3.3%20Control/#HCharge]] section;
290 +* If "Discharge request" is received, procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
291 291  * If both signals received, "Charge request" has a priority.
292 292  
293 293  In addition, the charge/discharge controller calculates and transmits to the upper-level system the maximum allowable current value with which the modular battery can be charged ("Charge current limit") and discharged ("Discharge current limit"), as well as the maximum regeneration current value with which the modular battery can be charged during operation under load ("Regeneration current limit"). The calculation of the charge, discharge and regeneration currents of the entire battery is performed based on the number of battery modules operating for charge or discharge and the maximum charge and discharge current values ​​transmitted by them:
... ... @@ -297,23 +297,46 @@
297 297  
298 298  The charge/discharge contactor control is configured in the “Control → Charge/Discharge” section:
299 299  
300 +[[image:1740750424118-190.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="250" width="800"]]
300 300  
301 -[[image:1734356572312-596.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="58" width="600"]]
302 -
303 303  In this section:
304 304  
305 -* Enable – a flag to enable the charge/discharge controller.
304 +* Enable – a flag to enable battery charge/discharge controller;
305 +* Mode:
306 +** Dependent - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals;
307 +** Independent - Charge/Discharge contactor is based on its own controller.
308 +* Algorithm:
309 +** Always on – discharging is always allowed;
310 +** Balanced – discharging is allowed provided that all battery modules are balanced;
311 +** Partially balanced – discharging is allowed for most balanced battery modules;
312 +* Minimum number of modules allowed to join – a minimum number of battery modules that can be connected in parallel;
313 +* Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
314 +* Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
315 +* Checking voltages time – a time of checking voltages of battery modules before starting joining modules, millisecond;
316 +* Balancing modules time – a time of balancing battery modules after joining modules and before closing main discharging contactor, millisecond;
317 +* Control the precharging contactor – a flag to control the main precharging contactor;
318 +* Canceling discharging time – a delay before opening the main discharging contactor, millisecond;
319 +* Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared;
320 +* Disconnect modules that are not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared;
321 +* Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
322 +* Join modules on the “Discharge request” signal – a flag to enable automatic modules joining if “Discharge request” signal appears;
323 +* Maximum charge current limit – a maximum allowed charging current of all the battery, A;
324 +* Maximum discharge current limit – a maximum allowed discharging current of all the battery, A;
325 +* Errors to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
326 +* Errors to open the charging/discharging contactor – errors that cause the main charging/discharging contactor "Discharging" to open,
327 +* Switch of the charging/discharging contactor on errors without a delay – a flag that allows the main charging/discharging contactor to be opened without delay if errors are detected.
306 306  
307 307  === Module balancing ===
308 308  
309 309  The BMS Main X device supports active balancing of battery modules both in the process of charging and in the process of discharging the battery.
310 -\\When the battery is charging, balancing is performed by disconnecting the most charged battery modules from the common bus. Before disconnecting the modules, the BMS Main X sends a request to the upper-level system (charger) to reduce the charge current to zero, and after the current becomes zero, disconnects the most charged battery modules.
311 311  
333 +When the battery is charging, balancing is performed by disconnecting the most charged battery modules from the common bus. Before disconnecting the modules, the BMS Main X sends a request to the upper-level system (charger) to reduce the charge current to zero, and after the current becomes zero, disconnects the most charged battery modules.
334 +
312 312  When the battery is discharging, balancing is performed by disconnecting the most discharged battery modules from the common bus. Battery modules are disconnected only if the battery discharge current has dropped to the threshold value set in the device settings.
313 313  
314 314  Module balancing is configured in the “Control – Module balancing” section:
315 315  
316 -[[image:1734356572313-823.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="74" width="600"]]
339 +[[image:1740750509436-756.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]]
317 317  
318 318  In this section:
319 319  
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320 320  * Balance on charging – a flag to enable module balancing when the battery is charging;
321 321  * Delta voltage – a voltage difference at which the most charged modules are switched off (those modules whose voltage exceeds the minimum voltage among the modules by the “Delta voltage” value are switched off), V;
322 322  * Delta current – a current difference at which the most charged modules are switched off (those modules are switched off, the charge current of which is less than the maximum charge current among the modules by the “Delta current” value), A;
323 -* Waiting time – a time the battery modules are in the disconnected state (after this time, the modules previously disconnected during the balancing process are reconnected to the common bus), s;
324 -* Balance on discharging – a flag to enable module balancing when the battery is discharging;
346 +* Detection time – a time for module to be estimated as unbalanced, millisecond;
347 +* Waiting time – a time the battery modules are in the disconnected state (after this time, the modules previously disconnected during the balancing process are reconnected to the common bus), second;
348 +* Balance on discharging – a flag to enable module balancing when the battery is discharging (if flag is enabled operation logic and settings are equal to balancing on charging);
325 325  * Required discharging current – a value of the discharge current at which the device switches off the most discharged battery modules, A.
350 +
351 +=== Heater ===
352 +
353 +To change the parameters of the heater control algorithm, select the "Control → Heater" section:
354 +
355 +[[image:1740750795356-352.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
356 +
357 +In this section:
358 +
359 +* Enable – a flag to enable the heater control;
360 +* Charge: Minimum module temperature, °C;
361 +* Charge: Tolerant module temperature, °C;
362 +* Discharge: Minimum module, °C;
363 +* Discharge: Tolerant module temperature, °C;
364 +* Delay before starting the heater, millisecond;
365 +* Delay before stopping the heater, millisecond;
366 +* Errors to turn off the heater – errors that cause the heater to shut down.
367 +
368 +Conditions for signal generation:
369 +
370 +* the minimum temperature among all cells of the battery is less than the “Charge (Discharge): Minimum cell temperature” value during the “Delay before starting the heater” time.
371 +
372 +Conditions for clearing the signal:
373 +
374 +* the minimum temperature among all cells of the battery is greater than the “Charge (Discharge): Tolerant cell temperature” value during the “Delay before stopping the heater” time.
375 +
376 +=== Cooler ===
377 +
378 +To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
379 +
380 +[[image:1740750844486-213.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
381 +
382 +In this section:
383 +
384 +* Enable – a flag to enable the cooler control;
385 +* Charge: Maximum module temperature, °C;
386 +* Charge: Tolerant module temperature, °C;
387 +* Discharge: Maximum module temperature, °C;
388 +* Discharge: Tolerant module temperature, °C;
389 +* Delay before starting the cooler, millisecond;
390 +* Delay before stopping the cooler, millisecond;
391 +* Errors 1 (2) to turn off the cooler – errors that cause the cooler to shut down.
392 +
393 +Conditions for signal generation:
394 +
395 +* the maximum temperature among all cells of the battery is greater than the “Charge (Discharge): Maximum cell temperature” value during the “Delay before starting the cooler” time.
396 +
397 +Conditions for clearing the signal:
398 +
399 +* the maximum temperature among all cells of the battery is less than the “Charge (Discharge): Tolerant cell temperature” value during the “Delay before stopping the cooler” time.
400 +
401 +
402 +
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