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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
From version 12.28
edited by Admin
on 2025/02/11 16:47
Change comment: There is no comment for this version
To version 12.15
edited by Admin
on 2025/02/11 16:33
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -271,8 +271,9 @@
271 271  * Dependent - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if "Charging" signal is set, otherwise – as Discharging contactor;
272 272  * Independent - Charge/Discharge contactor is based on its own controller.
273 273  
274 -The charging/discharging controller supports the following modes:
275 275  
275 +The device supports the following charging/discharging modes:
276 +
276 276  1. Charging/Discharging is always allowed (Always on) – the device ignores voltage and current unbalance of the battery modules and commands to close the discharging contactors of the battery modules and the main discharging contactor.
277 277  1. Charging/Discharging is allowed if all battery modules are balanced (Balanced).
278 278  1. Charging/Discharging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the discharging.
... ... @@ -279,24 +279,29 @@
279 279  
280 280  The device controls two processes: **joining battery modules** and **closing the main charging/discharging contactor**.
281 281  
282 -The operation of the **joining battery modules** depends on the signal received:
283 283  
284 -* If "Join to charge" is received, joining procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
285 -* If "Join to discharge" is received, joining procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
286 -* If both signals received, "Join to charge" has a priority.
284 +The operation of the **joining battery modules** is described by the following steps:
287 287  
288 -The operation of **closing main charging/discharging contactor **depends on the signal received:
286 +1. Battery modules are disabled. When the “Join to charge” or “Join to discharge” request is received and the voltage and corresponding current unbalance errors (Voltage unbalance (DCH), Current unbalance (DCH), Discharging current unbalance) are cleared, go to step 2.
287 +1. Checking the voltage unbalance of battery modules (the duration of the check is set in the settings). If there is no imbalance or errors are ignored (“Always on” and “Partially balanced”), go to step 3, otherwise open all discharging contactors, and go to step 1.
288 +1. Closing the precharging contactors of the battery modules (optional). Go to step 4.
289 +1. Closing the discharging contactors of the battery modules. The battery modules are self-balancing. Go to step 5.
290 +1. Checking intermodular balancing currents (the duration of the check is set in the settings). If there is no current unbalance (“Current unbalance (DCH)”) or errors are ignored (“Always on”), go to step 6, otherwise open all discharging contactors, and go to step 1.
291 +1. The battery modules are joined. If the “Join to discharge” request is cleared or "Discharging current unbalance" error occurs, go to step 1.
289 289  
290 -* If "Charge request" is received, procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
291 -* If "Discharge request" is received, procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
292 -* If both signals received, "Charge request" has a priority.
293 +The operation of **closing main discharging contactor** is described in the following steps:
293 293  
295 +1. The main discharging contactor “Discharging” is open. When the “Discharge request” is received, the voltage and current unbalance errors (“Voltage unbalance (DCH)”, “Current unbalance (DCH)”, “Discharging current unbalance”) are cleared, and the battery modules are joined, go to step 2.
296 +1. Closing the main precharging contactor (optional). Go to step 3.
297 +1. Closing the main discharging contactor "Discharging". Go to step 4.
298 +1. The main discharging contactor “Discharging” is closed. If the "Discharge request" is cleared, the battery modules are disconnected, or errors occur, go to step 1.
294 294  
295 -In addition to controlling the charge/discharge contactor, the charge/discharge controller calculates and transmits to the upper-level system the maximum allowable current value with which the modular battery can be charged ("Charge current limit") and discharged ("Discharge current limit"), as well as the maximum regeneration current value with which the modular battery can be charged during operation under load ("Regeneration current limit"). The calculation of the charge, discharge and regeneration currents of the entire battery is performed based on the number of battery modules operating for charge or discharge and the maximum charge and discharge current values ​​transmitted by them:
300 +The command to turn on the main charging contactor "Discharging" can be issued either to the upper-level system via the CAN1 (ext) bus, or to the intelligent switch of the device, which serves for direct control of the main discharging contactor "Discharging".
296 296  
297 -* "Charge current limit" and "Regeneration current limit" are calculated only if there is "Charge request";
298 -* "Discharge current limit" is calculated only if there is "Discharge request".
299 299  
303 +In addition to controlling the discharge contactors, the discharge controller calculates and transmits to the upper-level system the maximum allowable current value with which the modular battery can be discharged ("Discharge current limit"), as well as the maximum regeneration current value with which the modular battery can be charged during operation under load ("Regeneration current limit"). The calculation of the discharge current and regeneration current of the entire battery is performed based on the number of battery modules operating for discharge and the maximum discharge and charge current values ​​transmitted by them.
304 +
305 +
300 300  The charge/discharge contactor control is configured in the “Control → Charge/Discharge” section:
301 301  
302 302  [[image:1734089702994-738.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="92" width="600"]]