Skip to Content

Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 8.1
edited by Admin
on 2025/02/28 15:01
Change comment: There is no comment for this version
To version 10.1
edited by Admin
on 2025/02/28 15:26
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -215,7 +215,7 @@
215 215  
216 216  Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance":
217 217  
218 -[[image:1734356793451-440.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]
218 +[[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"]]
219 219  
220 220  In this section:
221 221  
... ... @@ -223,19 +223,25 @@
223 223  * Maximum current – a maximum allowable self-balancing current of battery modules, A;
224 224  * Delay before setting the error;
225 225  * Delay before clearing the error;
226 +* Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
226 226  * Lock – a flag to block the error until the device is restarted.
227 227  
228 -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:
229 +As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated.
229 229  
230 -* current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
231 +Conditions for generating the error:
231 231  
233 +* the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
234 +
232 232  Conditions for clearing the error:
233 233  
234 -* current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
237 +* the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
235 235  
236 -If there is the error "Current unbalance (CH)" ("Current unbalance (DCH)"), the charging (discharging) contactor of the battery module opens.
239 +(% class="box infomessage" %)
240 +(((
241 +If there is the “Current unbalance (CH)” or "Current unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**.
242 +)))
237 237  
238 -=== Charging current unbalance ===
244 +=== Charging current unbalance (in “Charging” state) ===
239 239  
240 240  During battery charging, the currents of the battery modules may vary. The BMS Main X device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them.
241 241  
... ... @@ -251,8 +251,10 @@
251 251  * Delay before clearing the error;
252 252  * Lock – a flag to block the error until the device is restarted.
253 253  
254 -As a result of the operation of the protection the “Charging current unbalance” are generated. Conditions for generating the errors:
260 +As a result of the operation of the protection the “Charging current unbalance” are generated.
255 255  
262 +Conditions for generating the errors:
263 +
256 256  * 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.
257 257  
258 258  Conditions for clearing the error:
... ... @@ -259,7 +259,10 @@
259 259  
260 260  * battery module is included in the largest group of modules with similar charge currents during the “Delay before clearing the error” time.
261 261  
262 -If there is the “Charging current unbalance” error, the battery module charging contactor opens.
270 +(% class="box infomessage" %)
271 +(((
272 +If there is the “Charging current unbalance” error, **corresponding battery module opens its charging contactor**.
273 +)))
263 263  
264 264  === Discharging current unbalance ===
265 265  
... ... @@ -277,8 +277,10 @@
277 277  * Delay before clearing the error;
278 278  * Lock – a flag to block the error until the device is restarted.
279 279  
280 -As a result of the operation of the protection the “Discharging current unbalance” are generated. Conditions for generating the errors:
291 +As a result of the operation of the protection the “Discharging current unbalance” are generated.
281 281  
293 +Conditions for generating the errors:
294 +
282 282  * 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.
283 283  
284 284  Conditions for clearing the error:
... ... @@ -285,8 +285,45 @@
285 285  
286 286  * battery module is included in the largest group of modules with similar discharge currents during the “Delay before clearing the error” time.
287 287  
288 -If there is the “Discharging current unbalance” error, the battery module discharging contactor opens.
301 +(% class="box infomessage" %)
302 +(((
303 +If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
304 +)))
289 289  
306 +=== High contactor temperature ===
307 +
308 +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.
309 +
310 +To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
311 +
312 +[[image:1740756362809-292.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
313 +
314 +In this section:
315 +
316 +* Enable – a flag to enable the protection;
317 +* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
318 +* Maximum contactor temperature, °C;
319 +* Tolerant contactor temperature, °C;
320 +* Delay before setting the error, second;
321 +* Delay before clearing the error, second;
322 +* Lock – a flag to block the error until the device is restarted.
323 +
324 +If there is a contactor overheat, the "High contactor temperature" error is generated.
325 +
326 +Error generation conditions:
327 +
328 +* the contactor temperature is greater than the “Maximum contactor temperature” value during the “Delay before setting the error” time.
329 +
330 +Conditions for removing the error:
331 +
332 +* the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
333 +
334 +=== WDT reset ===
335 +
336 +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.
337 +
338 +To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
339 +
290 290  === Critical error ===
291 291  
292 292  Parameters for generating the critical error are configured in the "Protections - Critical error" section:
1740756362809-292.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.admin
Size
... ... @@ -1,0 +1,1 @@
1 +20.4 KB
Content