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Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 7.1
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... ... @@ -185,14 +185,16 @@
185 185  
186 186  Protection against voltage unbalance of battery modules is configured in the section "Protections - Voltage unbalance (in any state)":
187 187  
188 -[[image:1734356793449-249.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
188 +[[image:1740754732291-420.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
189 189  
190 190  In this section:
191 191  
192 192  * Enable – a flag to enable the protection;
193 193  * Delta voltage – maximum allowable voltage difference of battery modules, V;
194 +* Use the open circuit voltage to detect the error – a flag to enable U,,ocv,, correction;
194 194  * Delay before setting the error;
195 195  * Delay before clearing the error;
197 +* Set the 'Voltage unbalance' error for the modules that are not ready to charge/discharge;
196 196  * Lock – a flag to block the error until the device is restarted.
197 197  
198 198  As a result of the operation of the voltage unbalance protection the errors “Voltage unbalance (CH)” and “Voltage unbalance (DCH)” are generated.
... ... @@ -199,11 +199,13 @@
199 199  
200 200  Conditions for generating the error:
201 201  
202 -* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time.
204 +* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time;
205 +* module is not ready to charge or discharge;
203 203  
204 204  Conditions for clearing the error:
205 205  
206 -* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time.
209 +* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time;
210 +* module is ready to charge or discharge.
207 207  
208 208  === Current unbalance (in “Balancing” state) ===
209 209  
... ... @@ -219,19 +219,20 @@
219 219  * Maximum current – a maximum allowable self-balancing current of battery modules, A;
220 220  * Delay before setting the error;
221 221  * Delay before clearing the error;
226 +* Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
222 222  * Lock – a flag to block the error until the device is restarted.
223 223  
224 224  As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated. Conditions for generating the error:
225 225  
226 -* current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
231 +* the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
227 227  
228 228  Conditions for clearing the error:
229 229  
230 -* current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
235 +* the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
231 231  
232 232  If there is the error "Current unbalance (CH)" ("Current unbalance (DCH)"), the charging (discharging) contactor of the battery module opens.
233 233  
234 -=== Charging current unbalance ===
239 +=== Charging current unbalance (in “Charging” state) ===
235 235  
236 236  During battery charging, the currents of the battery modules may vary. The BMS Main X device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them.
237 237