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Changes for page 3.6 Battery protection

Last modified by Admin on 2025/04/09 12:25
From version 4.10
edited by Admin
on 2024/11/21 18:13
Change comment: There is no comment for this version
To version 4.15
edited by Admin
on 2024/11/21 18:19
Change comment: There is no comment for this version

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6 6  
7 7  [[Overcurrent protection settings>>image:1732211959984-118.png||data-xwiki-image-style-alignment="center" height="266" width="386"]]
8 8  
9 + In this section:
9 9  
10 -In this section:
11 -
12 12  * Enable – a flag to enable the protection;
13 13  * Maximum charging current, А;
14 14  * Tolerant charging current, А;
... ... @@ -32,7 +32,7 @@
32 32  
33 33  (% class="box infomessage" %)
34 34  (((
35 -If there is the "Overcurrent" error, the charging relay and discharging relay open.
34 +If there is the "Overcurrent" error, the charging and discharging relay open.
36 36  )))
37 37  
38 38  == 3.6.2 Undervoltage protection ==
... ... @@ -100,21 +100,257 @@
100 100  
101 101  == 3.6.4 Low temperature protection ==
102 102  
102 +The board implements battery protection from too low temperature.
103 103  
104 +To change the battery protection parameters from low temperature, select the menu "Protections → Low temperature protection":
105 +
106 +
107 +In this section:
108 +
109 +* Enable – a flag to enable the protection;
110 +* Minimum charging temperature, °C;
111 +* Tolerant charging temperature, °C;
112 +* Minimum discharging temperature, °C;
113 +* Tolerant discharging temperature, °C;
114 +* Delay before setting the error, second;
115 +* Delay before clearing the error, second;
116 +* Lock the error until the device is reset.
117 +
118 +As a result of the operation of the battery protection from low temperature, the "Low CH temperature" or “Low DCH temperature” error is generated.
119 +
120 +Error generation conditions:
121 +
122 +* the minimum temperature among all cells of the battery is less than the “Minimum charging (discharging) temperature” value for the “Delay before setting the error” time.
123 +
124 +Conditions for removing the error:
125 +
126 +* the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
127 +
128 +(% class="box infomessage" %)
129 +(((
130 +If there is the "Low CH temperature" error, the charging relay opens.
131 +If there is the "Low DCH temperature" error, the discharging relay opens.
132 +)))
133 +
104 104  == 3.6.5 High temperature protection ==
105 105  
136 +The board implements battery protection from too high temperature.
137 +
138 +To change the battery protection parameters from high temperature, select the menu "Protections → High temperature protection":
139 +
140 +
141 +In this section:
142 +
143 +* Enable – a flag to enable the protection;
144 +* Maximum charging temperature, °C;
145 +* Tolerant charging temperature, °C;
146 +* Maximum discharging temperature, °C;
147 +* Tolerant discharging temperature, °C;
148 +* Delay before setting the error, second;
149 +* Delay before clearing the error, second;
150 +* Lock the error until the device is reset.
151 +
152 +As a result of the operation of the battery protection from high temperature, the "High CH temperature" or “High DCH temperature” error is generated.
153 +
154 +Error generation conditions:
155 +
156 +* the maximum temperature among all cells of the battery is greater than the “Maximum charging (discharging) temperature” value for the “Delay before setting the error” time.
157 +
158 +Conditions for removing the error:
159 +
160 +* the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
161 +
162 +(% class="box infomessage" %)
163 +(((
164 +If there is the "High CH temperature" error, the charging relay opens.
165 +If there is the "High DCH temperature" error, the discharging relay opens.
166 +)))
167 +
106 106  == 3.6.6 Battery cover protection ==
107 107  
108 -== 3.6.7 High humidity protection ==
170 +To change the protection parameters from opening the battery cover, select the menu "Protections → Battery cover protection":
109 109  
172 +In this section:
173 +
174 +* Enable – a flag to enable the protection;
175 +* Delay before setting the error, second;
176 +* Delay before clearing the error, second;
177 +* Lock the error until the device is reset.
178 +
179 +As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
180 +
181 +Error generation conditions:
182 +
183 +* there is a signal from the battery cover during the “Delay before setting the error” time.
184 +
185 +Conditions for removing the error:
186 +
187 +* no signal from the battery cover during the “Delay before clearing the error” time.
188 +
189 +(% class="box warningmessage" %)
190 +(((
191 +**If there is the "Battery cover error", the “Critical error” is generated and all relays open.**
192 +)))
193 +
194 +== 3.6.7 High humidity protection ==
195 +
196 +The board can protect the battery from high humidity and water.
197 +
198 +To change the protection parameters of the battery from high humidity, select the menu "Protections → High humidity protection":
199 +
200 +
201 +In this section:
202 +
203 +* Enable – a flag to enable the protection;
204 +* Maximum humidty, RH%;
205 +* Tolerant humidty, RH%;
206 +* Delay before setting the error, second;
207 +* Delay before clearing the error, second;
208 +* Lock the error until the device is reset.
209 +
210 +As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
211 +
212 +Error generation conditions:
213 +
214 +* the measured humidity is greater than “Maximum humidity” during the “Delay before setting the error” time.
215 +
216 +Conditions for removing the error:
217 +
218 +* the measured humidity is less than the “Tolerant humidity” during the “Delay before clearing the error” time.
219 +
220 +(% class="box infomessage" %)
221 +(((
222 +If there is the "High humidity" error, no action is taken. The error is indicative.
223 +)))
224 +
110 110  == 3.6.8  Water protection ==
111 111  
227 +To change the protection parameters of the battery from water, select the menu "Protections → Water protection":
228 +
229 +
230 +In this section:
231 +
232 +* Enable – a flag to enable the protection;
233 +* Maximum (water) humidty, RH%;
234 +* Tolerant humidity, RH%;
235 +* Delay before setting the error, second;
236 +* Delay before clearing the error, second;
237 +* Lock the error until the device is reset.
238 +
239 +As a result of the operation of the battery protection from water, the "Water" error is generated.
240 +
241 +Error generation conditions:
242 +
243 +* the measured humidity is greater than the “Maximum (water) humidity” value during the “Delay before setting the error” time.
244 +
245 +Conditions for removing the error:
246 +
247 +* the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
248 +
249 +(% class="box warningmessage" %)
250 +(((
251 +**If there is the “Water” error, the “Critical error” is generated and all relays open.**
252 +)))
253 +
112 112  == 3.6.9 Current sensor error ==
113 113  
256 +The board is implemented to check the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
257 +
258 +To change the test parameters of the current sensor connection circuits, select the menu "Protections → Current sensor error":
259 +
260 +
261 +In this section:
262 +
263 +* Enable – a flag to enable the protection;
264 +* Maximum voltage, V;
265 +* Minimum voltage, V;
266 +* Hysteresis voltage – a hysteresis value to clear the error, V;
267 +* Delay before setting the error, second;
268 +* Delay before clearing the error, second;
269 +* Lock the error until the device is reset.
270 +
271 +If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
272 +
273 +Error generation conditions:
274 +
275 +* the voltage in the signal line or zero level line of the current sensor is greater than the “Maximum voltage” value during the “Delay before setting the error” time;
276 +* the voltage in the signal line or zero level line of the current sensor is less than the “Minimum voltage” value during the “Delay before setting the error” time.
277 +
278 +Conditions for removing the error:
279 +
280 +* the voltage in the signal line or zero level line of the current sensor is in range from (Minimum voltage + Hysteresis voltage) to (Maximum voltage - Hysteresis voltage) during the “Delay before clearing the error” time.
281 +
282 +(% class="box warningmessage" %)
283 +(((
284 +**If there is the “Current sensor error”, the “Critical error” is generated and all relays open.**
285 +)))
286 +
114 114  == 3.6.10 Short circuit protection ==
115 115  
289 +The BMS implements a protection of power circuits (contactors, power cables) against overheating caused by the flow of high current for a long time.
290 +
291 +To change the protection parameters from short circuit, select the menu "Protections → Short circuit protection":
292 +
293 +
294 +In this section:
295 +
296 +* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
297 +** Enable – a flag to enable the protection;
298 +** Maximum current, A;
299 +** Delay before setting the error, second;
300 +* Delay before clearing the error, second;
301 +* Switch off the charging relay on error – a flag to open the charging relay when the "Short circuit" error occurs;
302 +* Switch off the discharging relay on error – a flag to open the discharging relay when the "Short circuit" error occurs;
303 +* Lock the error until the device is reset.
304 +
305 +If there is a short circuit, the "Short circuit" error is generated.
306 +
307 +Error generation conditions:
308 +
309 +* at any of the three protection levels, the current modulo is greater than the “Maximum current” value during the “Delay before setting the error” time.
310 +
311 +Conditions for removing the error:
312 +
313 +* the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
314 +
315 +(% class="box infomessage" %)
316 +(((
317 +If there is the "Short circuit" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
318 +)))
319 +
116 116  == 3.6.11 Contactor high temperature protection ==
117 117  
322 +The BMS protects power contactors from overheating. To measure the temperature of the contactor, a thermistor is used, connected to the P13 connector of the board. Configuring of the analog input for temperature measurement is described in section Input signals.
323 +
324 +To change the overheating protection parameters of power contactors, select the menu "Protections → Contactor high temperature protection":
325 +
326 +
327 +In this section:
328 +
329 +* Enable – a flag to enable the protection;
330 +* Maximum temperature, °C;
331 +* Tolerant temperature, °C;
332 +* Delay before setting the error, second;
333 +* Delay before clearing the error, second;
334 +* Switch off the charging relay on error – a flag to open the charging relay when the "Contactor high temperature" error occurs;
335 +* Switch off the discharging relay on error – a flag to open the discharging relay when the "Contactor high temperature" error occurs;
336 +* Lock the error until the device is reset.
337 +
338 +If there is a contactor overheat, the "Contactor high temperature" error is generated.
339 +
340 +Error generation conditions:
341 +
342 +* the contactor temperature is greater than the “Maximum temperature” value during the “Delay before setting the error” time.
343 +
344 +Conditions for removing the error:
345 +
346 +* the contactor temperature is lower than the “Tolerant temperature” value during the “Delay before clearing the error” time.
347 +
348 +(% class="box infomessage" %)
349 +(((
350 +If there is the "Contactor high temperature" error, the charging relay opens (the “Switch off the charging relay on error” flag is set) and the discharging relay opens (the “Switch off the discharging relay on error flag” is set).
351 +)))
352 +
118 118  == 3.6.12 Unallowable charging protection ==
119 119  
120 120  == 3.6.13 Stuck contactor protection ==