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Changes for page 3.3 Control

Last modified by Admin on 2025/12/11 10:32
From version 66.4
edited by Admin
on 2025/12/11 10:04
Change comment: There is no comment for this version
To version 42.4
edited by Admin
on 2025/02/24 12:18
Change comment: There is no comment for this version

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... ... @@ -102,17 +102,6 @@
102 102  * Ignore the linear zone – a flag to ignore linear SOC zone while correction (recommended to be unset);
103 103  * Last correction timestamp – time when last correction was made.
104 104  
105 -=== SOH estimation ===
106 -
107 -The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms:
108 -
109 -* by effective capacity;
110 -* by total charge-.
111 -
112 -In "By effective capacity" mode SOH is calculated as a ratio of effective capacity to nominal capacity.
113 -
114 -In "By total charge-" mode SOH is calculated as a
115 -
116 116  === Resistance estimation ===
117 117  
118 118  Calculation of the resistance of cells is carried out in two ways. The first method is used when the battery passes from a relaxation state to a charge or discharge state, wherein the cell resistance value
... ... @@ -224,11 +224,11 @@
224 224  * Enable – a flag to start calculation of the charge current limit;
225 225  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
226 226  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
227 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
216 +* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on SOC and battery temperature;
228 228  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
229 229  * Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
230 230  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
231 -* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
220 +* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on maximum cell voltage;
232 232  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
233 233  * Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
234 234  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
... ... @@ -252,11 +252,11 @@
252 252  * Enable – a flag to start calculation of the discharge current limit;
253 253  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
254 254  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
255 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
244 +* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on SOC and temperature;
256 256  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
257 257  * Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
258 258  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
259 -* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
248 +* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on minimum cell voltage;
260 260  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
261 261  * Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
262 262  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
... ... @@ -367,19 +367,13 @@
367 367  
368 368  To change the parameters of charging process status, select the "Control → Charging status" section:
369 369  
370 -[[image:1760435790050-496.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
359 +[[image:1735064935499-941.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]In this section:
371 371  
372 -In this section:
373 -
374 374  * Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
375 375  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
376 -* Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) 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;
377 -* Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) 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;
378 -* Treat negative currents as zero currents for generating the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal at discharging current;
363 +* 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;
364 +* 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;
379 379  * 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;
380 -* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
381 -* Charge current limit to clear the 'Ready to charge' – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
382 -* Charge current limit to set the 'Ready to charge' – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
383 383  * Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
384 384  
385 385  (% class="box infomessage" %)
... ... @@ -393,18 +393,12 @@
393 393  
394 394  To change the parameters of discharging process status, select the "Control → Discharging status" section:
395 395  
396 -[[image:1760435802140-274.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="129" width="800"]]
379 +[[image:1735064980481-209.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]In this section:
397 397  
398 -In this section:
399 -
400 400  * Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
401 401  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
402 -* Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
403 -* Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
404 -* Treat positive currents as zero currents for generating the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal at charging current;
405 -* Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
406 -* Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
407 -* Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
383 +* 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;
384 +* 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;
408 408  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
409 409  
410 410  === Precharge ===
... ... @@ -417,14 +417,12 @@
417 417  
418 418  To change the parameters of precharge contactor, select the "Control → Precharge" section:
419 419  
420 -[[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
397 +[[image:1735065073836-743.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
421 421  
422 422  * Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
423 423  * 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;
424 424  * Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
425 -* Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
426 426  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
427 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
428 428  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
429 429  * Relaxation between attempts – a duration between precharge attempts, millisecond;
430 430  * Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
... ... @@ -482,6 +482,7 @@
482 482  **Note: **when errors occur in the system, the **Charge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
483 483  )))
484 484  
460 +
485 485  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
486 486  
487 487  [[image:1735063563460-549.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
... ... @@ -496,7 +496,7 @@
496 496  * Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
497 497  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
498 498  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
499 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
475 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor;
500 500  * Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
501 501  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
502 502  * Custom delay: <error> – delay for specific error, millisecond;
... ... @@ -535,6 +535,8 @@
535 535  **Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
536 536  )))
537 537  
514 +The device supports controlling the precharging contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]).
515 +
538 538  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
539 539  
540 540  [[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]]
... ... @@ -549,7 +549,7 @@
549 549  * Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
550 550  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
551 551  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
552 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
530 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor;
553 553  * Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
554 554  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
555 555  * Custom delay: <error> – specific error delay, millisecond;
... ... @@ -604,6 +604,11 @@
604 604  * the battery voltage is out of range;
605 605  * the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
606 606  
585 +(% class="box infomessage" %)
586 +(((
587 +**Note: **when errors occur in the system, the **Discharge (AUX) **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
588 +)))
589 +
607 607  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
608 608  
609 609  [[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
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620 620  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
621 621  * Minimum battery voltage, V;
622 622  * Maximum battery voltage, V;
623 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
606 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor;
624 624  
625 625  === Cell balancing ===
626 626  
... ... @@ -642,10 +642,7 @@
642 642  * the voltage on the cell is less than the balancing stop voltage;
643 643  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
644 644  
645 -(% class="box infomessage" %)
646 -(((
647 647  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
648 -)))
649 649  
650 650  The BMS Main 3 can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
651 651  
... ... @@ -662,6 +662,9 @@
662 662  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
663 663  ** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states);
664 664  ** Balance always – balancing is always performed regardless the battery state;
645 +
646 +[[image:1735065666891-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="800"]]
647 +
665 665  * Balancing condition:
666 666  ** Automatic – balancing will be performed automatically if needed conditions are met;
667 667  ** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
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