Changes for page 3.3 Control
Last modified by Admin on 2025/04/09 12:14
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... ... @@ -275,7 +275,6 @@ 275 275 276 276 I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,, 277 277 278 - 279 279 === Discharge map (PEAK & CONTINUOUS) === 280 280 281 281 The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes. ... ... @@ -303,6 +303,75 @@ 303 303 304 304 I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,, 305 305 305 + 306 + 307 +=== Main contactor === 308 + 309 +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. 310 + 311 +The Main contactor algorithm supports the following modes: 312 + 313 +* Always on; 314 +* Automatic; 315 +* On demand. 316 + 317 +In “Always on” mode main contactor closes if all the following is true: 318 + 319 +* Charging contactor is open; 320 +* Discharging contactor is open; 321 +* There are no errors from the list below: 322 +** Overcurrent; 323 +** Undervoltage; 324 +** Overvoltage; 325 +** High temperature (CH); 326 +** High temperature (DCH); 327 +** Unallowable charging; 328 +** Critical error. 329 + 330 +In “Always on” mode main contactor opens if all the following is true: 331 + 332 +* Charging contactor is open; 333 +* Discharging contactor is open; 334 +* There is an error from the list below: 335 +** Overcurrent; 336 +** Undervoltage; 337 +** Overvoltage; 338 +** High temperature (CH); 339 +** High temperature (DCH); 340 +** Unallowable charging; 341 +** Critical error. 342 + 343 +In “Automatic” mode, the main contactor closes by internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors. 344 + 345 +In “On demand” mode, the main contactor closes by external the “Close Main contactor” request. 346 + 347 +To change the parameters of the main contactor, select the "Control → Main contactor" section: 348 + 349 +[[image:1733322872744-536.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]] 350 + 351 +In this section: 352 + 353 +* Enable – a flag to enable the main contactor control; 354 +* Algorithm – main contactor control algorithm: 355 +** Always on – contactor is always closed; 356 +** Automatic – contactor closes by internal charge and discharge algorithms; 357 +** On demand – contactor is closed by an external request; 358 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed; 359 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s; 360 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset. 361 + 362 +=== Charging status === 363 + 364 +TBA 365 + 366 +=== Discharging status === 367 + 368 +TBA 369 + 370 +=== Precharge === 371 + 372 +TBA 373 + 306 306 === Charge === 307 307 308 308 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. ... ... @@ -491,61 +491,6 @@ 491 491 * Maximum voltage – maximum battery voltage, V; 492 492 * 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. 493 493 494 -=== 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 - 549 549 === Cell balancing === 550 550 551 551 Balancing makes the voltage of all cells equal to the minimum cell voltage.