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Changes for page 3.5 Battery control

Last modified by Admin on 2025/03/10 12:50
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edited by Admin
on 2025/02/19 10:43
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To version 17.1
edited by Admin
on 2025/02/19 09:49
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46 46  
47 47  To change the parameters of the battery charge control algorithm, select the menu "Cells → Charging control":
48 48  
49 -[[image:1739961593607-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="639" width="425"]]
49 +[[image:1732208589628-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="725" width="471"]]
50 50  
51 51  In this section:
52 52  
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55 55  ** Always on – charging is always allowed;
56 56  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
57 57  ** On charge request – charging is allowed when there is a signal “Charge request”;
58 -* Allow charging only when the "Ready to charge" signal is set;
59 59  * Current indicating charging – a current level to generate the "Charging current present" signal, A;
60 60  * Current indicating no charging – a current level to clear the "Charging current present" signal, A;
61 61  * Delay before starting charging – a time delay T,,on,, before closing the charging relay and the allow charging relay, second;
... ... @@ -111,13 +111,13 @@
111 111  **Note:** In case of errors in the system operation, the opening of the discharging relay is performed either immediately or with a delay T,,off,, (depends on the settings described below).
112 112  )))
113 113  
114 -The board supports controlling the precharging relay. The duration of switching on the precharging relay and precharge current threshold before closing the discharging (load) relay are adjustable.
113 +The board supports controlling the precharging relay. The duration of switching on the precharging relay before closing the discharging (load) relay is adjusted.
115 115  
116 116  When the power down request occurs, the discharging relay opens after delay T,,off,,. Reclosing the discharging relay is performed if the power down request is removed.
117 117  
118 118  To change the parameters of the battery discharge control algorithm, select the menu "Cells → Discharging control":
119 119  
120 -[[image:1739961703149-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="748" width="440"]]
119 +[[image:1732208781932-849.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="644" width="415"]]
121 121  
122 122  In this section:
123 123  
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126 126  ** Always on – load is always connected;
127 127  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
128 128  ** On discharge request – load is connected when there is a signal “Discharge request”;
129 -* Allow discharging only when the "Ready to discharge" signal is set;
130 130  * Current indicating discharging – a current level to generate the "Discharging current present" signal, А;
131 131  * Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
132 132  * Delay before starting discharging – a time delay T,,on,, before closing the discharging relay, second;
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184 184  
185 185  The BMS Main 2.x has a relay to control the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactor.
186 186  
187 -The Main contactor algorithm supports the following modes:
185 +The main contactor closes if there are no errors from the list below:
188 188  
189 -* Always on;
190 -* Automatic;
191 -* On demand.
187 +* Overcurrent;
188 +* Undervoltage;
189 +* Overvoltage;
190 +* High temperature (charging);
191 +* High temperature (discharging);
192 +* Unallowable charging;
193 +* Critical error.
192 192  
193 -In “Always on” mode main contactor closes if all the following is true:
195 +The main contactor opens if the charging and discharging relays are opened and any of the following conditions is met:
194 194  
195 -* Other contactors are open;
196 -* There are no errors from the list below:
197 -** Overcurrent;
198 -** Undervoltage;
199 -** Overvoltage;
200 -** High temperature (charging);
201 -** High temperature (discharging);
202 -** Unallowable charging;
203 -** Critical error.
197 +* charging or discharging current is detected during a set time;
198 +* voltage of any cell is lower than the minimum cell voltage configured in the section "Protections → Undervoltage protection" during a set time;
199 +* voltage of any cell is greater than the maximum cell voltage configured in the section "Protections → Overvoltage protection" during a set time;
200 +* temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature protection" during a set time;
201 +* Critical error stays on during a set time.
204 204  
205 -In “Always on” mode main contactor opens if all the following is true:
206 -
207 -* Other contactors are open;
208 -* There is an error from the the list above.
209 -
210 -In “Automatic” mode, the main contactor closes and opens by internal algorithms at the same time with other contactors.
211 -
212 -In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
213 -
214 214  To change the parameters of the main contactor, select the menu "Cells → Main contactor":
215 215  
216 -[[image:1739958553206-813.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="410"]]
205 +[[image:1732209137414-912.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="352"]]
217 217  
218 218  In this section:
219 219  
220 220  * Enable – a flag to enable the main contactor control;
221 -* Algorithm – main contactor control algorithm:
222 -** Always on – contactor is always closed;
223 -** Automatic – contactor closes by internal charge and discharge algorithms;
224 -** On demand – contactor is closed by an external request;
225 225  * Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, second;
226 226  * Keep the contactor open until the device is reset – a flag for keeping the main contactor opened until the system be reset.
227 227  
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