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Changes for page 3.5 Battery control

Last modified by Admin on 2025/03/10 12:50
From version 14.1
edited by Admin
on 2025/01/30 12:42
Change comment: There is no comment for this version
To version 17.2
edited by Admin
on 2025/02/19 09:51
Change comment: There is no comment for this version

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4 4  (% data-numbered-headings-start="5" style="--numbered-headings-start: 4;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Battery control ==
6 6  
7 -=== Charging control ===
7 +=== Charge control ===
8 8  
9 9  There are two relays that serve charging the battery: a charging relay and an allow charging relay. With the help of the allow charging relay, the BMS commands the charger to start or stop charging.
10 10  
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62 62  * Use specific delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
63 63  * Switch off the charging relay on errors without delay – a flag to protectively open the charging relay without delay. In the opposite case, when an error is detected, the charging relay opens always with the delay “Delay before stopping charging”;
64 64  * Control the precharging relay – a flag that allows control of the precharging relay;
65 -* Voltage to clear the “Ready to charge” (hence, the “Allow charging”) signal – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” signal is cleared;
66 -* Voltage to reset the “Ready to charge” (hence, the “Allow charging”) signal – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” signal is set;
65 +* Voltage to clear the “Ready to charge” (hence, the “Allow charging”) signal – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” signal is cleared;
66 +* Voltage to reset the “Ready to charge” (hence, the “Allow charging”) signal – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” signal is set;
67 67  * Delay before recharging – a time after which the previously opened the allow charging relay closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0.
68 68  
69 69  (% class="box infomessage" %)
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73 73  2) the "Delay before recharging" time has passed since the opening of the allow charging relay.
74 74  )))
75 75  
76 -=== Discharging control ===
76 +=== Discharge control ===
77 77  
78 78  The board has a discharging relay to connect battery to the load.
79 79  
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133 133  * Switch off the discharging relay on errors without delay – a flag to protectively open the discharging relay without delay. In the opposite case, when an error is detected, the discharging relay opens always with the delay “Delay before stopping discharging”.
134 134  * Precharge time – a duration of closing the precharge relay before closing the discharging relay, millisecond;
135 135  * Precharge current threshold to start discharging – a minimum current value to finish precharging and start discharge, A;
136 -* Voltage to clear the “Ready to discharge” signal – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
137 -* Voltage to reset the “Ready to discharge” signal – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set.
136 +* Voltage to clear the “Ready to discharge” signal – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
137 +* Voltage to reset the “Ready to discharge” signal – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set.
138 138  
139 139  === Discharging (AUX) control ===
140 140  
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200 200  * temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature protection" during a set time;
201 201  * Critical error stays on during a set time.
202 202  
203 +The Main contactor algorithm supports the following modes:
204 +
205 +*
206 +* Automatic;
207 +* On demand.
208 +
203 203  To change the parameters of the main contactor, select the menu "Cells → Main contactor":
204 204  
205 -[[image:1732209137414-912.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="132" width="352"]]
211 +[[image:1739958553206-813.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="410"]]
206 206  
207 207  In this section:
208 208  
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