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Changes for page 3.3 Control

Last modified by Admin on 2025/06/11 15:52
From version 11.2
edited by Admin
on 2025/02/28 13:45
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To version 10.3
edited by Admin
on 2025/02/28 13:43
Change comment: There is no comment for this version

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231 231  
232 232  The battery discharge management is configured in the "Control - Discharge" section:
233 233  
234 -[[image:1740750247231-926.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="218" width="800"]]
235 235  
236 236  In this section:
237 237  
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240 240  ** Always on – discharging is always allowed;
241 241  ** Balanced – discharging is allowed provided that all battery modules are balanced;
242 242  ** Partially balanced – discharging is allowed for most balanced battery modules;
243 -* Minimum number of modules allowed to join – a minimum number of battery modules that can be connected in parallel;
244 -* Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
245 -* 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;
246 -* Checking voltages time – a time of checking voltages of battery modules before starting joining modules, millisecond;
247 -* Balancing modules time – a time of balancing battery modules after joining modules and before closing main discharging contactor, millisecond;
248 -* Control the precharging contactor – a flag to control the main precharging contactor;
249 -* Canceling discharging time – a delay before opening the main discharging contactor, millisecond;
250 -* Disconnect modules that are not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared.
251 -* Disconnect all modules if one is not ready to discharge – a flag for disconnecting all modules if one of the modules have the “Ready to discharge” signal cleared;
252 -* Join modules on the “Discharge request” signal – a flag to enable automatic modules joining if “Discharge request” signal appears;
253 -* Maximum discharge current limit – a maximum allowed discharging current of all the battery, A;
254 -* Errors to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
255 -* Errors to open the discharging contactor – errors that cause the main discharging contactor "Discharging" to open,
256 -* Switch of the discharging contactor on errors without a delay – a flag that allows the main discharging contactor “Discharging” to be opened without delay if errors are detected.
242 +* Current corresponding to discharging – a current level to set the "Discharging current present" signal, A;
243 +* Current corresponding to no discharging – a current level to clear the "Discharging current present" signal, A;
244 +* Maximum current to rejoin modules – a maximum allowable current at which rejoining of battery modules is allowed, A;
245 +* Checking voltages time – a time of checking voltages of battery modules, ms;
246 +* Pre-balancing modules time – a time of precharging battery modules, ms;
247 +* Balancing modules time – a time of balancing battery modules, ms;
248 +* Control the precharging relay – a flag to control the main precharging contactor;
249 +* Precharging time – a time of precharging, ms;
250 +* Cancel discharging without a delay;
251 +* Canceling discharging time – a delay before opening the main discharging contactor, ms;
252 +* Limit module current – a flag that allows to limit the discharging current of a modular battery so that the current of each battery module does not exceed its maximum allowable discharge current;
253 +* Slew rate – a rate of change of the discharge current limit when the “Limit module current” flag is set, А/s;
254 +* Disconnect modules not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared.
257 257  
258 258  === Charge/Discharge ===
259 259  
260 260  The BMS Main X can control the charging/discharging contactor that is used to both charge and discharge the battery.
261 261  
262 -Charge/Discharge contactor has two algorithms of operation:
260 +The charge/discharge contactor (“Charging/Discharging” signal) receives a “Charging” signal (generated by the charge controller) if a “Charge request” signal is received from the upper-level system. In all other cases, the "Discharging" signal is output to the contactor (generated by the discharge controller).
263 263  
264 -* Dependent - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if "Charging" signal is set, otherwise – as Discharging contactor;
265 -* Independent - Charge/Discharge contactor is based on its own controller.
262 +The charge/discharge contactor control is configured in the “Control – Charge/Discharge” section:
266 266  
267 -(% class="box warningmessage" %)
268 -(((
269 -**Warning!**
270 -Charge/Discharge algorithms on BMS Main X and on battery modules controllers must **be the same**!
271 -)))
272 -
273 -The charging/discharging controller supports the following modes:
274 -
275 -1. Charging/Discharging is always allowed (Always on) – the device ignores voltage and current unbalance of the battery modules and commands to close the discharging contactors of the battery modules and the main discharging contactor.
276 -1. Charging/Discharging is allowed if all battery modules are balanced (Balanced).
277 -1. Charging/Discharging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the discharging.
278 -
279 -The device controls two processes: **joining battery modules** and **closing the main charging/discharging contactor**.
280 -
281 -
282 -
283 -
284 284  [[image:1734356572312-596.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="58" width="600"]]
285 285  
286 286  In this section:
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