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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
From version 12.12
edited by Admin
on 2025/02/11 16:28
Change comment: There is no comment for this version
To version 12.21
edited by Admin
on 2025/02/11 16:43
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -268,40 +268,35 @@
268 268  
269 269  Charge/Discharge contactor has two algorithms of operation:
270 270  
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;
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 -In "Dependent" mode the Charge/discharge contactor receives a “Charging” signal (generated by the charge controller) if a “Charge request” signal is received from the upper-level system. In all other cases, the "Discharging" signal is output to the contactor (generated by the discharge controller).
275 275  
276 -The device supports the following discharging modes:
275 +The device supports the following charging/discharging modes:
277 277  
278 -1. 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.
279 -1. Discharging is allowed if all battery modules are balanced (Balanced).
280 -1. 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.
277 +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.
278 +1. Charging/Discharging is allowed if all battery modules are balanced (Balanced).
279 +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.
281 281  
282 -The device controls two processes: **joining battery modules** and **closing the main discharging contactor** “Discharging”.
281 +The device controls two processes: **joining battery modules** and **closing the main charging/discharging contactor**.
283 283  
283 +The operation of the **joining battery modules** depends on the signal received:
284 284  
285 -The operation of the **joining battery modules** is described by the following steps:
285 +* If "Join to charge" is received, joining procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
286 +* If "Join to discharge" is received, joining procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
287 +* If both signals received, "Join to charge" has a priority.
286 286  
287 -1. Battery modules are disabled. When the “Join to discharge” request is received and the voltage and current unbalance errors (Voltage unbalance (DCH), Current unbalance (DCH), Discharging current unbalance) are cleared, go to step 2.
288 -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.
289 -1. Closing the precharging contactors of the battery modules (optional). Go to step 4.
290 -1. Closing the discharging contactors of the battery modules. The battery modules are self-balancing. Go to step 5.
291 -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.
292 -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 +The operation of **closing main charging/discharging contactor **depends on the signal received:
293 293  
294 -The operation of **closing main discharging contactor** is described in the following steps:
291 +* If "Charge request" is received, procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
292 +* If "Discharge request" is received, procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
293 +* If both signals received, "Charge request" has a priority.
295 295  
296 -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.
297 -1. Closing the main precharging contactor (optional). Go to step 3.
298 -1. Closing the main discharging contactor "Discharging". Go to step 4.
299 -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.
300 300  
301 301  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".
302 302  
303 303  
304 -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.
299 +In addition to controlling the charge/discharge contactor, the chargedischarge 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.
305 305  
306 306  
307 307  The charge/discharge contactor control is configured in the “Control → Charge/Discharge” section: