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 9.1
edited by Admin
on 2025/02/28 15:26
Change comment: Загрузить новое вложение 1740756362809-292.png

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.
... ... @@ -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:
... ... @@ -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:
... ... @@ -307,32 +307,6 @@
307 307  
308 308  === High contactor temperature ===
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.
311 -
312 -To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
313 -
314 -[[image:1740756362809-292.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
315 -
316 -In this section:
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;
324 -* Lock – a flag to block the error until the device is restarted.
325 -
326 -If there is a contactor overheat, the "High contactor temperature" error is generated.
327 -
328 -Error generation conditions:
329 -
330 -* the contactor temperature is greater than the “Maximum contactor temperature” value during the “Delay before setting the error” time.
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 -
336 336  === WDT reset ===
337 337  
338 338  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.
... ... @@ -339,31 +339,12 @@
339 339  
340 340  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
341 341  
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 -(% class="box warningmessage" %)
355 -(((
356 -If there is the "WDT reset" error, **“Critical error” is generated.**
357 -)))
358 -
359 359  === Critical error ===
360 360  
361 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
310 +Parameters for generating the critical error are configured in the "Protections - Critical error" section:
362 362  
363 -To change the critical error parameters, select the "Protections → Critical error" section:
312 +[[image:1734356802719-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="69" width="600"]]
364 364  
365 -[[image:1740756532131-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="800"]]
366 -
367 367  In this section:
368 368  
369 369  * Enable – a flag to enable the protection;
... ... @@ -371,6 +371,18 @@
371 371  * Delay before clearing the error;
372 372  * Lock – a flag to block the error until the device is restarted.
373 373  
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.
321 +The critical error flag is generated if at least one of the following errors persists during the "Delay before setting the error" time:
375 375  
376 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
323 +* «Battery cover»;
324 +* «Insulation fault»;
325 +* «CH contactor feedback error»;
326 +* «DCH contactor feedback error»;
327 +* «CH/DCH contactor feedback error»;
328 +* «Module offline».
329 +
330 +The critical error flag is cleared if there are no errors from the list above during the "Delay before clearing the error" time.
331 +
332 +(% class="box warningmessage" %)
333 +(((
334 +**When the critical error flag is present, all battery contactors open.**
335 +)))
1740756532131-419.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.admin
Size
... ... @@ -1,1 +1,0 @@
1 -15.7 KB
Content