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Changes for page 3.3 Control

Last modified by Admin on 2025/06/11 15:52
From version 10.2
edited by Admin
on 2025/02/28 13:42
Change comment: There is no comment for this version
To version 9.2
edited by Admin
on 2025/02/28 13:39
Change comment: There is no comment for this version

Summary

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115 115  In this section:
116 116  
117 117  * Precharge current threshold to close the discharging contactor – a current value to ensure that precharge process has finished and it is allowed to close the discharging contactor, A;
118 +* Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
119 +* Minimum voltage difference before and after contactors to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V;
118 118  * Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
119 119  * Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
120 120  * Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
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132 132  * voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts";
133 133  * power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
134 134  
135 -(% class="box warningmessage" %)
136 -(((
137 137  Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
138 -)))
139 139  
140 140  === Charge ===
141 141  
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147 147  1. Charging is allowed provided that all battery modules are balanced (Balanced).
148 148  1. Charging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the charging.
149 149  
150 -The device controls two processes: **joining battery modules **and **closing the main charging contactor.**
149 +The device controls two processes: joining battery modules and closing the main charging contactor.
151 151  
152 152  
153 -The operation of the **joining battery modules** is described by the following steps:
152 +The operation of the joining battery modules is described by the following steps:
154 154  
155 155  1. Battery modules are disabled. When the “Join to charge” request is received and the voltage and current unbalance errors (Voltage unbalance (CH), Current unbalance (CH), Charging current unbalance) are cleared, go to step 2.
156 156  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 charging contactors, and go to step 1.
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159 159  1. Checking intermodular balancing currents (the duration of the check is set in the settings). If there is no current unbalance (“Current unbalance (CH)”) or errors are ignored (“Always on”), go to step 6, otherwise open all charging contactors, and go to step 1.
160 160  1. The battery modules are joined. If the “Join to charge” request is cleared or the "Charging current unbalance" and "Critical error" errors occur, go to step 1.
161 161  
162 -The operation of **closing the main charging contactor** is described in the following steps:
161 +The operation of the main charging contactor is described in the following steps:
163 163  
164 164  1. The main charging contactor is open. When the “Charge request” is received, the voltage and current unbalance errors (“Voltage unbalance (CH)”, “Current unbalance (CH)”, “Charging current unbalance”) are cleared, and the battery modules are joined, go to step 2.
165 165  1. Closing the main precharging contactor (optional). Go to step 3.
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168 168  
169 169  The command to turn on the main charging contactor (“Charging”) can be issued both to the upper-level system via the CAN bus (external), and on the opto-relay of the device that serves to directly control the main charging contactor.
170 170  
170 +
171 171  In addition to controlling the charging contactors, the charge controller calculates and transmits to the upper-level system the value of the maximum allowable current, which can be used to charge the modular battery (“Charge current limit”). The calculation of the charging current of the entire battery is performed based on the number of battery modules operating per charge and the values of the current limits transmitted by them.
172 172  
173 +
173 173  The battery charge management is configured in the "Control - Charge" section:
174 174  
175 -[[image:1740750130950-113.png]]
176 +[[image:1734356553573-447.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="600"]]
176 176  
177 177  In this section:
178 178  
1740750130950-113.png
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1 -XWiki.admin
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