Changes for page 3.3 Control

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From version 12.2
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To version 1.4
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Summary

Details

Page properties
Parent
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1 -Battery management systems.BMS Main 3.3\. Configuration.WebHome
1 +drafts.bms-main-3.3\. Settings.WebHome
Content
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1 -(% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 -= Settings =
1 +1.
2 +11.
3 +111. Common settings
3 3  
4 -(% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 -== Control ==
6 -
7 -=== Common settings ===
8 -
9 9  To change the common BMS settings, select the "Control → Common settings" section:
10 10  
11 -[[image:1735054851946-552.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]
7 +[[image:1733322611547-671.png]]
12 12  
13 13  In this section:
14 14  
... ... @@ -16,10 +16,8 @@
16 16  * Cell resistance – nominal (maximum) internal resistance of the cells, Ohm;
17 17  * Relax time (after charging) – a relaxation time after charging, second;
18 18  * Relax time (atfer discharging) – a relaxation time after discharging, second;
19 -* Reset parameters – a command to reset cells state of charge, capacity, and resistance;
20 -* Method of calculating the battery voltage:
21 -** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery;
22 -** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS.
15 +* Number of cycles – a number of charge-discharge cycles;
16 +* Reset parameters – a command to reset cells state of charge, capacity, and resistance.
23 23  
24 24  The values “Capacity”, “Resistance”, “Cycles” are used to calculate the SOC of cells and the battery.
25 25  
... ... @@ -33,8 +33,11 @@
33 33  
34 34  The “Reset parameters” command is used for starting-up and adjustment of the battery.
35 35  
36 -=== SOC estimation ===
37 37  
31 +1.
32 +11.
33 +111. SOC estimation
34 +
38 38  The BMS Main 3 device calculates the state of charge of the battery (SOC) using two algorithms:
39 39  
40 40  * by open circuit voltage;
... ... @@ -44,9 +44,8 @@
44 44  
45 45  To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
46 46  
44 +[[image:1733322611549-423.png]]
47 47  
48 -[[image:1735056107942-306.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
49 -
50 50  The following estimation algorithms supported:
51 51  
52 52  * Voltage – by open circuit voltage;
... ... @@ -64,14 +64,13 @@
64 64  
65 65  To change the algorithm for calculating the Final SOC, select the "Control → SOC estimation → Final SOC" section:
66 66  
67 -[[image:1733322611551-852.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]]
63 +[[image:1733322611551-852.png]]
68 68  
69 69  The following calculation methods are supported (“Final SOC”):
70 70  
71 71  * Minimal SOC – the battery SOC is assumed to be the minimum SOC among the cells;
72 72  * Average SOC – the battery SOC is taken equal to the arithmetic average of the cell SOC;
73 -* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell have 100% SOC, b) 0% if any cell have 0% SOC;
74 -* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC;
69 +* Min-Max SOC – the battery SOC is taken based on the minimum and maximum SOC of the cells (recommended method).
75 75  
76 76  Other parameters:
77 77  
... ... @@ -85,13 +85,15 @@
85 85  * Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
86 86  * Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
87 87  
88 -=== SOC correction ===
83 +1.
84 +11.
85 +111. SOC correction
89 89  
90 -The BMS Main 3 device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
87 +The BMS Main 3 device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see section** **2.3.2).
91 91  
92 92  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
93 93  
94 -[[image:1733322624656-766.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="121" width="800"]]
91 +[[image:1733322624656-766.png]]
95 95  
96 96  In this section:
97 97  
... ... @@ -102,35 +102,30 @@
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 -=== Resistance estimation ===
106 106  
103 +1.
104 +11.
105 +111. Resistance estimation
106 +
107 107  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
108 108  
109 -{{formula fontSize="SMALL" imageType="PNG"}}
110 -R = \frac{U-U_{ocv}}{I_{stable}}
111 -{{/formula}}
109 +R = (U-U,,ocv,,) / I,,stable,,,
112 112  
113 -where U the cell voltage measured in the charge or discharge state, V; U,,ocv,, — cell voltage measured in the state of relaxation (before switching to the state of charge or discharge); I,,stable,, stabilized current through the cell in the state of charge or discharge.
111 +where U is the cell voltage measured in the charge or discharge state, V; U,,ocv,, is the cell voltage measured in the state of relaxation (before switching to the state of charge or discharge); I,,stable,, stabilized current through the cell in the state of charge or discharge.
114 114  
115 115  The second method is used for a stepwise change in the current through the cell, while the value of the cell resistance:
116 116  
117 -{{formula fontSize="SMALL"}}
118 -R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}}
119 -{{/formula}}
115 +R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,,
120 120  
121 -provided that
117 +(Q,,max,, is the maximum cell capacity),
122 122  
123 -{{formula fontSize="SMALL"}}
124 -| I_{stable2}-I_{stable1} | > 0.2 × Qmax
125 -{{/formula}}
119 +where U,,2,, is the voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,, – the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it.
126 126  
127 -where Q,,max,, — the maximum cell capacity,U,,2,, — voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,, — the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it.
128 -
129 129  The stabilized current I,,stable,, = I, if during the stabilization time the instantaneous current I is in the range from 0.95 × I to 1.05 × I.
130 130  
131 131  To change parameters of the algorithm for calculating the cell resistance, select the "Control → Resistance estimation" section:
132 132  
133 -[[image:1733322624659-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="800"]]
125 +[[image:1733322624659-473.png]]
134 134  
135 135  In this section:
136 136  
... ... @@ -140,13 +140,16 @@
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).
135 +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 section 2.3.1). 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 -=== Low SOC (signal) ===
146 146  
138 +1.
139 +11.
140 +111. Low SOC (signal)
141 +
147 147  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
148 148  
149 -[[image:1733322624660-513.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
144 +[[image:1733322624660-513.png]]
150 150  
151 151  In this section:
152 152  
... ... @@ -167,11 +167,14 @@
167 167  
168 168  The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
169 169  
170 -=== High charging current (signal) ===
171 171  
166 +1.
167 +11.
168 +111. High charging current (signal)
169 +
172 172  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
173 173  
174 -[[image:1733322624661-915.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
172 +[[image:1733322624661-915.png]]
175 175  
176 176  In this section:
177 177  
... ... @@ -192,8 +192,11 @@
192 192  
193 193  The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
194 194  
195 -=== Charge map ===
196 196  
194 +1.
195 +11.
196 +111. Charge map
197 +
197 197  The BMS Main 3 device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
198 198  
199 199  Calculated current values are sent to a charger or an intellectual load over the CAN bus. External devices based on received data provide correct battery operation.
... ... @@ -200,7 +200,7 @@
200 200  
201 201  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
202 202  
203 -[[image:1733322637793-171.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="177" width="800"]]
204 +[[image:1733322637793-171.png]]
204 204  
205 205  In this section:
206 206  
... ... @@ -220,8 +220,11 @@
220 220  
221 221  Charging current limit = Maximum charging current × Kcs × Kcc × Kcv × Kct
222 222  
223 -=== Discharge map ===
224 224  
225 +1.
226 +11.
227 +111. Discharge map
228 +
225 225  The BMS Main 3 device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
226 226  
227 227  Calculated current values are sent to a charger or an intellectual load over the CAN bus.
... ... @@ -228,7 +228,7 @@
228 228  
229 229  To configure parameters for determining the discharge current limit, select the "Control → Discharge map" section:
230 230  
231 -[[image:1733322637795-310.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
235 +[[image:1733322637795-310.png]]
232 232  
233 233  In this section:
234 234  
... ... @@ -248,13 +248,16 @@
248 248  
249 249  Discharging current limit = Maximum discharging current × Kds × Kdc × Kdv × Kdt
250 250  
251 -=== Charge map (PEAK & CONTINUOUS) ===
252 252  
256 +1.
257 +11.
258 +111. Charge map (PEAK & CONTINUOUS)
259 +
253 253  The BMS Main 3 has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes.
254 254  
255 255  To configure parameters for determining the charge current limit, select the "Control → Charge map (PEAK & CONTINUOUS)" section:
256 256  
257 -[[image:1733322637796-187.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="800"]]
264 +[[image:1733322637796-187.png]]
258 258  
259 259  In this section:
260 260  
... ... @@ -269,19 +269,22 @@
269 269  
270 270  The maximum charging current value equals to the peak or continuous current according to the following diagram:
271 271  
272 -[[image:1733322717451-608.png||data-xwiki-image-style-alignment="center"]]
279 +[[image:1733322717451-608.png]]
273 273  
274 274  I,,peak,, = Maximum PEAK charge current × K,,cp,,
275 275  
276 276  I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,
277 277  
278 -=== Discharge map (PEAK & CONTINUOUS) ===
279 279  
286 +1.
287 +11.
288 +111. Discharge map (PEAK & CONTINUOUS)
289 +
280 280  The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
281 281  
282 282  To configure parameters for determining the discharge current limit, select the "Control → Discharge map (PEAK & CONTINUOUS)" section:
283 283  
284 -[[image:1733322735595-661.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="800"]]
294 +[[image:1733322735595-661.png]]
285 285  
286 286  In this section:
287 287  
... ... @@ -296,90 +296,17 @@
296 296  
297 297  The maximum discharging current value equals to the peak or continuous current according to following diagram:
298 298  
299 -[[image:1733322753429-968.png||data-xwiki-image-style-alignment="center"]]
309 +[[image:1733322753429-968.png]]
300 300  
301 301  I,,peak,, = Maximum PEAK discharge current × K,,dp,,
302 302  
303 303  I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,
304 304  
305 -=== Main contactor ===
306 306  
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.
316 +1.
317 +11.
318 +111. Charge
308 308  
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 -TBA
376 -
377 -=== Precharge ===
378 -
379 -TBA
380 -
381 -=== Charge ===
382 -
383 383  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.
384 384  
385 385  The device supports three charge control algorithms:
... ... @@ -430,7 +430,7 @@
430 430  
431 431  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
432 432  
433 -[[image:1735063563460-549.png]]
370 +[[image:1733322798914-813.png]]
434 434  
435 435  In this section:
436 436  
... ... @@ -443,13 +443,20 @@
443 443  * Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
444 444  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
445 445  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
446 -* Control the precharging contactor – a flag that allows control of the precharging contactor;
447 447  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
448 448  * Custom delay: <error> – specific error delay, millisecond;
449 449  * 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”;
386 +* Control the precharging contactor – a flag that allows control of the precharging contactor;
387 +* 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;
388 +* 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;
389 +* 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.
450 450  
451 -=== Discharge ===
391 +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.
452 452  
393 +1.
394 +11.
395 +111. Discharge
396 +
453 453  The device controls the discharging contactor to connect battery to the load.
454 454  
455 455  The device supports three algorithms to control battery discharging:
... ... @@ -500,8 +500,10 @@
500 500  
501 501  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
502 502  
503 -[[image:1733323750262-841.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="360" width="800"]]
447 +[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png||alt="A screenshot of a computer
504 504  
449 +Description automatically generated"]]
450 +
505 505  In this section:
506 506  
507 507  * Enable – a flag to activate the discharge control;
... ... @@ -522,20 +522,26 @@
522 522  * 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;
523 523  * 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 -=== Charge/Discharge ===
526 526  
472 +1.
473 +11.
474 +111. Charge/Discharge
475 +
527 527  The BMS Main 3 device can control the charging/discharging contactor, which combines algorithms of charging and discharging contactor. It behaves as a charging contactor when “Charge request” or “Charger connected” is set, otherwise – as a discharging contactor.
528 528  
529 529  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
530 530  
531 -[[image:1733322827919-875.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]
480 +[[image:1733322827919-875.png]]
532 532  
533 533  In this section:
534 534  
535 535  * Enable – a flag to enable the charge/discharge controller.
536 536  
537 -=== Discharge (AUX) ===
538 538  
487 +1.
488 +11.
489 +111. Discharge (AUX)
490 +
539 539  The BMS Main 3 device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
540 540  
541 541  The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program.
... ... @@ -548,7 +548,7 @@
548 548  
549 549  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
550 550  
551 -[[image:1733322827920-878.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
503 +[[image:1733322827920-878.png]]
552 552  
553 553  In this section:
554 554  
... ... @@ -561,8 +561,67 @@
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  
564 -=== Cell balancing ===
516 +1.
517 +11.
518 +111. Main contactor
565 565  
520 +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.
521 +
522 +The Main contactor algorithm supports the following modes:
523 +
524 +* Always on;
525 +* Automatic;
526 +* On demand.
527 +
528 +In “Always on” mode main contactor closes if all the following is true:
529 +
530 +* Charging contactor is open;
531 +* Discharging contactor is open;
532 +* There are no errors from the list below:
533 +** Overcurrent;
534 +** Undervoltage;
535 +** Overvoltage;
536 +** High temperature (CH);
537 +** High temperature (DCH);
538 +** Unallowable charging;
539 +** Critical error.
540 +
541 +In “Always on” mode main contactor opens if all the following is true:
542 +
543 +* Charging contactor is open;
544 +* Discharging contactor is open;
545 +* There is an error from the list below:
546 +** Overcurrent;
547 +** Undervoltage;
548 +** Overvoltage;
549 +** High temperature (CH);
550 +** High temperature (DCH);
551 +** Unallowable charging;
552 +** Critical error.
553 +
554 +In “Automatic” mode, the main contactor closes by internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
555 +
556 +In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
557 +
558 +To change the parameters of the main contactor, select the "Control → Main contactor" section:
559 +
560 +[[image:1733322872744-536.png]]
561 +
562 +In this section:
563 +
564 +* Enable – a flag to enable the main contactor control;
565 +* Algorithm – main contactor control algorithm:
566 +** Always on – contactor is always closed;
567 +** Automatic – contactor closes by internal charge and discharge algorithms;
568 +** On demand – contactor is closed by an external request;
569 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
570 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
571 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset.
572 +
573 +1.
574 +11.
575 +111. Cell balancing
576 +
566 566  Balancing makes the voltage of all cells equal to the minimum cell voltage.
567 567  
568 568  The following balancing rules are supported:
... ... @@ -587,7 +587,7 @@
587 587  
588 588  To change the cell balancing parameters, select the "Control → Cell balancing" section:
589 589  
590 -[[image:1733322883460-118.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
601 +[[image:1733322883460-118.png]]
591 591  
592 592  In this section:
593 593  
... ... @@ -597,7 +597,7 @@
597 597  ** 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);
598 598  ** Balance always – balancing is always performed regardless the battery state;
599 599  
600 -[[image:1733322883462-975.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="74" width="600"]]
611 +[[image:1733322883462-975.png]]
601 601  
602 602  * Minimum cell voltage to start balancing, V;
603 603  * Voltage deviation to start balancing;
... ... @@ -604,8 +604,11 @@
604 604  * Voltage deviation to stop balancing;
605 605  * Command to discharge all cells – a flag to force the balancing of all cells.
606 606  
607 -=== Series balancing ===
608 608  
619 +1.
620 +11.
621 +111. Series balancing
622 +
609 609  The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity.
610 610  
611 611  Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2.
... ... @@ -619,7 +619,7 @@
619 619  
620 620  To change the series balancing parameters, select the "Control → Series balancing" section:
621 621  
622 -[[image:1733322892811-410.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="126" width="800"]]
636 +[[image:1733322892811-410.png]]
623 623  
624 624  In this section:
625 625  
... ... @@ -629,10 +629,13 @@
629 629  * Balancing threshold, V;
630 630  * Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah;
631 631  * Period – a period to reset of charge counters for each series (to avoid accumulation of error), second;
632 -* Do not sum series voltages – a flag to disable the summing of series voltages.3
646 +* Do not sum series voltages – a flag to disable the summing of series voltages.
633 633  
634 -=== Power down ===
635 635  
649 +1.
650 +11.
651 +111. Power down
652 +
636 636  The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time.
637 637  
638 638  Shutting down the battery system is performed according to the following conditions:
... ... @@ -644,7 +644,7 @@
644 644  
645 645  To change the parameters of the power down control, select the "Control → Power down" section:
646 646  
647 -[[image:1733322892813-562.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]
664 +[[image:1733322892813-562.png]]
648 648  
649 649  In this section:
650 650  
... ... @@ -654,11 +654,13 @@
654 654  * Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared;
655 655  * Delay before setting the internal power down signal – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms.
656 656  
657 -=== Heater ===
674 +1.
675 +11.
676 +111. Heater
658 658  
659 659  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
660 660  
661 -[[image:1733322901923-144.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="800"]]
680 +[[image:1733322901923-144.png]]
662 662  
663 663  In this section:
664 664  
... ... @@ -681,11 +681,14 @@
681 681  
682 682  If there is the "Heater" signal, the heater contactor closes and/or a signal is output to the corresponding digital output.
683 683  
684 -=== Cooler ===
685 685  
704 +1.
705 +11.
706 +111. Cooler
707 +
686 686  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
687 687  
688 -[[image:1733322901924-962.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
710 +[[image:1733322901924-962.png]]
689 689  
690 690  In this section:
691 691  
... ... @@ -708,13 +708,16 @@
708 708  
709 709  If there is the "Cooler" signal, the cooler contactor closes and/or a signal is output to the corresponding digital output.
710 710  
711 -=== High voltage ===
712 712  
734 +1.
735 +11.
736 +111. High voltage
737 +
713 713  The BMS Main 3 device has an ability to measure high voltages before and after contactors.
714 714  
715 715  To change the parameters of high voltage fault, select the "Control → High voltage" section:
716 716  
717 -[[image:1733322914683-203.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="87" width="800"]]
742 +[[image:1733322914683-203.png]]
718 718  
719 719  In this section:
720 720  
... ... @@ -726,8 +726,11 @@
726 726  
727 727  **If there is the “High voltage fault”, the “Critical error” is generated and all contactors open.**
728 728  
729 -=== Cell analysis ===
730 730  
755 +1.
756 +11.
757 +111. Cell analysis
758 +
731 731  The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level.
732 732  
733 733  The BMS Main 3 device can automatically determine the battery discharge characteristic.
... ... @@ -739,7 +739,7 @@
739 739  
740 740  To configure parameters for determining the discharge characteristic of the battery, select the "Control → Cell analysis" section:
741 741  
742 -[[image:1733322914685-558.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
770 +[[image:1733322914685-558.png]]
743 743  
744 744  In this section:
745 745  
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