Skip to Content

Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:14
From version 12.3
edited by Admin
on 2024/12/24 18:07
Change comment: There is no comment for this version
To version 10.6
edited by Admin
on 2024/12/24 16:25
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -140,7 +140,7 @@
140 140  * Minimum SOC – minimum cell SOC value for resistance calculation;
141 141  * Maximum SOC – maximum cell SOC value for resistance calculation.
142 142  
143 -The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance / 2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
143 +The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
144 144  
145 145  === Low SOC (signal) ===
146 146  
... ... @@ -275,6 +275,7 @@
275 275  
276 276  I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,
277 277  
278 +
278 278  === Discharge map (PEAK & CONTINUOUS) ===
279 279  
280 280  The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
... ... @@ -302,83 +302,6 @@
302 302  
303 303  I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,
304 304  
305 -=== Main contactor ===
306 -
307 -The BMS Main 3 device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
308 -
309 -The Main contactor algorithm supports the following modes:
310 -
311 -* Always on;
312 -* Automatic;
313 -* On demand.
314 -
315 -In “Always on” mode main contactor closes if all the following is true:
316 -
317 -* Charging contactor is open;
318 -* Discharging contactor is open;
319 -* There are no errors from the list below:
320 -** Overcurrent;
321 -** Undervoltage;
322 -** Overvoltage;
323 -** High temperature (CH);
324 -** High temperature (DCH);
325 -** Unallowable charging;
326 -** Critical error.
327 -
328 -In “Always on” mode main contactor opens if all the following is true:
329 -
330 -* Charging contactor is open;
331 -* Discharging contactor is open;
332 -* There is an error from the list below:
333 -** Overcurrent;
334 -** Undervoltage;
335 -** Overvoltage;
336 -** High temperature (CH);
337 -** High temperature (DCH);
338 -** Unallowable charging;
339 -** Critical error.
340 -
341 -In “Automatic” mode, the main contactor closes by internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
342 -
343 -In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
344 -
345 -To change the parameters of the main contactor, select the "Control → Main contactor" section:
346 -
347 -[[image:1733322872744-536.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]
348 -
349 -In this section:
350 -
351 -* Enable – a flag to enable the main contactor control;
352 -* Algorithm – main contactor control algorithm:
353 -** Always on – contactor is always closed;
354 -** Automatic – contactor closes by internal charge and discharge algorithms;
355 -** On demand – contactor is closed by an external request;
356 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
357 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
358 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset.
359 -
360 -=== Charging status ===
361 -
362 -* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
363 -* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
364 -* Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0.
365 -
366 -(% class="box infomessage" %)
367 -(((
368 -**Note:** The "Allow charging" signal activates under two independent conditions:
369 -1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and
370 -2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
371 -)))
372 -
373 -=== Discharging status ===
374 -
375 -* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
376 -* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
377 -
378 -=== Precharge ===
379 -
380 -TBA
381 -
382 382  === Charge ===
383 383  
384 384  There are two contactors that serve charging the battery: a charging contactor and an allow charging contactor. With the help of the allow charging contactor, the BMS commands the charger to start or stop charging.
... ... @@ -431,7 +431,7 @@
431 431  
432 432  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
433 433  
434 -[[image:1735063563460-549.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
358 +[[image:1733322798914-813.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="327" width="800"]]
435 435  
436 436  In this section:
437 437  
... ... @@ -440,16 +440,20 @@
440 440  ** Always on – charging is always allowed;
441 441  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
442 442  ** On charge request – charging is allowed when there is a signal “Charge request”;
443 -* Allow charging only when the "Ready to charge" signal i
444 444  * Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
445 445  * Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
446 446  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
447 447  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
448 -* Control the precharging contactor – a flag that allows control of the precharging contactor;
449 449  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
450 450  * Custom delay: <error> – specific error delay, millisecond;
451 451  * Switch off the charging contactor on errors without delay – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”;
374 +* Control the precharging contactor – a flag that allows control of the precharging contactor;
375 +* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
376 +* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
377 +* Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0.
452 452  
379 +Note – The allow charging contactor closes under two independent conditions: 1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
380 +
453 453  === Discharge ===
454 454  
455 455  The device controls the discharging contactor to connect battery to the load.
... ... @@ -521,6 +521,8 @@
521 521  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
522 522  * Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
523 523  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
452 +* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
453 +* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
524 524  
525 525  === Charge/Discharge ===
526 526  
... ... @@ -561,6 +561,61 @@
561 561  * Maximum voltage – maximum battery voltage, V;
562 562  * Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error.
563 563  
494 +=== Main contactor ===
495 +
496 +The BMS Main 3 device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
497 +
498 +The Main contactor algorithm supports the following modes:
499 +
500 +* Always on;
501 +* Automatic;
502 +* On demand.
503 +
504 +In “Always on” mode main contactor closes if all the following is true:
505 +
506 +* Charging contactor is open;
507 +* Discharging contactor is open;
508 +* There are no errors from the list below:
509 +** Overcurrent;
510 +** Undervoltage;
511 +** Overvoltage;
512 +** High temperature (CH);
513 +** High temperature (DCH);
514 +** Unallowable charging;
515 +** Critical error.
516 +
517 +In “Always on” mode main contactor opens if all the following is true:
518 +
519 +* Charging contactor is open;
520 +* Discharging contactor is open;
521 +* There is an error from the list below:
522 +** Overcurrent;
523 +** Undervoltage;
524 +** Overvoltage;
525 +** High temperature (CH);
526 +** High temperature (DCH);
527 +** Unallowable charging;
528 +** Critical error.
529 +
530 +In “Automatic” mode, the main contactor closes by internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
531 +
532 +In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
533 +
534 +To change the parameters of the main contactor, select the "Control → Main contactor" section:
535 +
536 +[[image:1733322872744-536.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]
537 +
538 +In this section:
539 +
540 +* Enable – a flag to enable the main contactor control;
541 +* Algorithm – main contactor control algorithm:
542 +** Always on – contactor is always closed;
543 +** Automatic – contactor closes by internal charge and discharge algorithms;
544 +** On demand – contactor is closed by an external request;
545 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
546 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
547 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset.
548 +
564 564  === Cell balancing ===
565 565  
566 566  Balancing makes the voltage of all cells equal to the minimum cell voltage.
1735063563460-549.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.admin
Size
... ... @@ -1,1 +1,0 @@
1 -59.6 KB
Content