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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
From version 9.1
edited by Admin
on 2025/01/28 16:17
Change comment: Загрузить новое вложение 1738081025199-282.png
To version 6.4
edited by Admin
on 2025/01/28 16:06
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55 55  The Main contactor algorithm supports the following modes:
56 56  
57 57  * Always on;
58 -* Automatic, when the main contactor closes by the internal charging and discharging algorithms at the same time with Precharging, Charging, Discharging and Charging/Discharging contactors.
58 +* Automatic, when the main contactor closes by the internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
59 59  
60 60  In “Always on” mode, the main contactor closes if all the following is true:
61 61  
62 62  * “Charging” contactor is open;
63 63  * “Discharging” contactor is open;
64 +
64 64  * there are no errors.
65 65  
66 66  In “Always on” mode, the main contactor opens if “Charging” and “Discharging” contactors are open and any of the following is true:
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110 110  
111 111  To change the precharge parameters, select the section “Control → Precharge”:
112 112  
113 -[[image:1738080762857-975.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="600"]]In this section:
114 +[[image:1734089664376-736.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="56" width="600"]]
114 114  
116 +In this section:
115 115  
116 116  * 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;
117 117  * 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;
118 -* Minimum voltage difference before and after contactors to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V;
119 -* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
120 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
121 -* Relaxation between attempts – a duration between precharge attempts, millisecond;
122 -* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
123 -* Precharge resistor resistance, Ohm;
124 -* Maximum allowable power dissipated in the resistor, W;
125 -* Delay before setting the "Precharge error" when checking power, millisecond;
126 -* Delay before clearing the "Precharge error", second;
127 -* Lock the "Precharge error" – a flag to block the error until the device is restarted.
120 +* Minimum voltage difference to finish precharging – a minimum voltage difference before and after contactors to ensure precharge process finished, V.
128 128  
129 -“Precharge error” generation conditions:
130 -
131 -* the precharge current does not decrease after "Number of precharging attempts";
132 -* voltages before and after contactors are not equal after "Number of precharging attempts";
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 -
135 -(% class="box warningmessage" %)
136 -(((
137 -Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
138 -)))
139 -
140 140  === Charge ===
141 141  
142 142  The BMS Main 3X device manages the parallel connection of the battery modules and the connection of the battery to the charging circuit.
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187 187  * Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
188 188  * Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
189 189  * Checking voltages time – a time of checking voltages of battery modules, millisecond;
172 +* Pre-balancing modules time – a time of pre-charging battery modules, millisecond;
190 190  * Balancing modules time – a time of balancing battery modules, millisecond;
191 191  * Control the precharging contactor – a flag to control the main precharging contactor;
175 +* Precharging time – a time of precharging, millisecond;
192 192  * Canceling charging time – a delay before opening the main charging contactor, ms;
177 +* Limit module current – a flag that allows to limit the charging current of a modular battery so that the current of each battery module does not exceed its maximum allowable charge current;
178 +* Slew rate – a rate of change of the charge current limit when the “Limit module current” flag is set, A/s;
193 193  * Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared.
194 194  * Disconnect all modules if one is not ready to charge – a flag for disconnecting all modules if any of the modules have the “Ready to charge” signal cleared;
195 195  * Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
196 196  * Maximum charge current limit – a maximum allowed charging current of all battery, A;
197 -* Maximum charge current limit – a maximum allowed charging current of all battery, A;
198 198  * Errors 1 (2) to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
199 199  * Errors 1 (2) to open the charging contactor – errors that cause the main charging contactor "Charging" to open;
200 200  * Switch of the charging contactor on errors without a delay – a flag that allows the main charging contactor “Charging” to be opened without delay if errors are detected.
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