Skip to Content

Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 15.1
edited by Admin
on 2025/02/28 15:43
Change comment: There is no comment for this version
To version 8.3
edited by Admin
on 2025/02/28 15:23
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -209,8 +209,6 @@
209 209  * battery module is in the largest group of balanced modules during the "Delay before clearing the error" time;
210 210  * module is ready to charge or discharge.
211 211  
212 -If there is the “Voltage unbalance (CH)” or "Voltage unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**.
213 -
214 214  === Current unbalance (in “Balancing” state) ===
215 215  
216 216  When battery modules are connected in parallel, the most charged modules transfer charge to the least charged modules. The process of charge transfer is accompanied by the flow of balancing currents. The BMS Main X device detects modules with high balancing currents and generates “Current unbalance (CH)” (charge circuit) and “Current unbalance (DCH)” (discharge circuit) errors for them.
... ... @@ -217,7 +217,7 @@
217 217  
218 218  Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance":
219 219  
220 -[[image:Battery management systems.BMS Main 3X.3\. Configuration.3\.4 Protections.WebHome@1734090244843-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
218 +[[image:1734356793451-440.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]
221 221  
222 222  In this section:
223 223  
... ... @@ -228,10 +228,8 @@
228 228  * Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
229 229  * Lock – a flag to block the error until the device is restarted.
230 230  
231 -As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated.
229 +As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated. Conditions for generating the error:
232 232  
233 -Conditions for generating the error:
234 -
235 235  * the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
236 236  
237 237  Conditions for clearing the error:
... ... @@ -238,9 +238,9 @@
238 238  
239 239  * the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
240 240  
241 -(% class="box infomessage" %)
237 +(% class="box warningmessage" %)
242 242  (((
243 -If there is the “Current unbalance (CH)” or "Current unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**.
239 +If there is the “Current unbalance” error, **corresponding battery module opens its discharging contactor**.
244 244  )))
245 245  
246 246  === Charging current unbalance (in “Charging” state) ===
... ... @@ -259,10 +259,8 @@
259 259  * Delay before clearing the error;
260 260  * Lock – a flag to block the error until the device is restarted.
261 261  
262 -As a result of the operation of the protection the “Charging current unbalance” are generated.
258 +As a result of the operation of the protection the “Charging current unbalance” are generated. Conditions for generating the errors:
263 263  
264 -Conditions for generating the errors:
265 -
266 266  * battery module is not included in the largest group of modules whose charge currents differ from each other by no more than "Delta current" during the "Delay before setting the error" time.
267 267  
268 268  Conditions for clearing the error:
... ... @@ -290,10 +290,8 @@
290 290  * Delay before clearing the error;
291 291  * Lock – a flag to block the error until the device is restarted.
292 292  
293 -As a result of the operation of the protection the “Discharging current unbalance” are generated.
287 +As a result of the operation of the protection the “Discharging current unbalance” are generated. Conditions for generating the errors:
294 294  
295 -Conditions for generating the errors:
296 -
297 297  * battery module is not included in the largest group of modules whose discharge currents differ from each other by no more than "Delta current" during the "Delay before setting the error" time.
298 298  
299 299  Conditions for clearing the error:
... ... @@ -305,72 +305,31 @@
305 305  If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
306 306  )))
307 307  
308 -=== High contactor temperature ===
300 +=== Critical error ===
309 309  
310 -The BMS Main X device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
302 +Parameters for generating the critical error are configured in the "Protections - Critical error" section:
311 311  
312 -To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
304 +[[image:1734356802719-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="69" width="600"]]
313 313  
314 -[[image:1740756362809-292.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
315 -
316 316  In this section:
317 317  
318 -* Enable – a flag to enable the protection;
319 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
320 -* Maximum contactor temperature, °C;
321 -* Tolerant contactor temperature, °C;
322 -* Delay before setting the error, second;
323 -* Delay before clearing the error, second;
308 +* Enable – a flag to enable the protection;
309 +* Delay before setting the error;
310 +* Delay before clearing the error;
324 324  * Lock – a flag to block the error until the device is restarted.
325 325  
326 -If there is a contactor overheat, the "High contactor temperature" error is generated.
313 +The critical error flag is generated if at least one of the following errors persists during the "Delay before setting the error" time:
327 327  
328 -Error generation conditions:
315 +* «Battery cover»;
316 +* «Insulation fault»;
317 +* «CH contactor feedback error»;
318 +* «DCH contactor feedback error»;
319 +* «CH/DCH contactor feedback error»;
320 +* «Module offline».
329 329  
330 -* the contactor temperature is greater than the “Maximum contactor temperature” value during the “Delay before setting the error” time.
322 +The critical error flag is cleared if there are no errors from the list above during the "Delay before clearing the error" time.
331 331  
332 -Conditions for removing the error:
333 -
334 -* the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
335 -
336 -=== WDT reset ===
337 -
338 -If the BMS firmware hangs, the watchdog timer resets the device. The BMS can detect that the device was reset and generates the “WDT reset” error.
339 -
340 -To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
341 -
342 -[[image:Battery management systems.BMS Main 3X.3\. Configuration.3\.4 Protections.WebHome@1734090244845-157.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="93" width="800"]]
343 -
344 -In this section:
345 -
346 -* Enable – a flag to enable the protection;
347 -* Delay before clearing the error, second;
348 -* Lock – a flag to block the error until the device is restarted.
349 -
350 -Conditions for removing the error:
351 -
352 -* the “Delay before clearing the error” time has passed from the device startup.
353 -
354 354  (% class="box warningmessage" %)
355 355  (((
356 -If there is the "WDT reset" error, **“Critical error” is generated.**
326 +**When the critical error flag is present, all battery contactors open.**
357 357  )))
358 -
359 -=== Critical error ===
360 -
361 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
362 -
363 -To change the critical error parameters, select the "Protections → Critical error" section:
364 -
365 -[[image:1740756532131-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="800"]]
366 -
367 -In this section:
368 -
369 -* Enable – a flag to enable the protection;
370 -* Delay before setting the error;
371 -* Delay before clearing the error;
372 -* Lock – a flag to block the error until the device is restarted.
373 -
374 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.2\. Strings controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
375 -
376 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
1740756362809-292.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.admin
Size
... ... @@ -1,1 +1,0 @@
1 -20.4 KB
Content
1740756532131-419.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.admin
Size
... ... @@ -1,1 +1,0 @@
1 -15.7 KB
Content