A kind of control method and system for battery capacity equalization
A control method and balanced control technology, applied in battery circuit devices, AC network load balancing, secondary battery repair/maintenance, etc., can solve problems such as low compatibility, inability to output power normally, and inability to flexibly match usage requirements, etc. Achieve accurate balance control and high compatibility
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Embodiment 1
[0025] figure 1 A flowchart of a method for controlling battery capacity equalization provided according to an embodiment of the present application, such as figure 1 As shown, the method includes:
[0026] S101: Acquire the state of each battery in each battery cluster of an energy storage system, and determine whether there is a battery cluster with abnormal battery state in the energy storage system based on the state of each battery;
[0027] It should be noted that the determining whether there is a battery cluster with an abnormal battery state in the energy storage system based on the state of each battery includes:
[0028] If the number of batteries in an abnormal state in the battery cluster is greater than or equal to 1, the battery cluster is determined to be an abnormal battery cluster.
[0029] S102: If there are battery clusters with abnormal battery states in the energy storage system, use a current limiting distribution mode to balance the capacity of each b...
Embodiment 2
[0071] Figure 4 A structural diagram of a battery capacity equalization control system provided according to an embodiment of the present application, such as Figure 4 As shown, the system may include:
[0072] The obtaining module 100 is configured to obtain the state of each battery in each battery cluster of the energy storage system, and judge whether there is a battery cluster with abnormal battery state in the energy storage system based on the state of the battery;
[0073] The first balance control module 200 is configured to use a current limiting distribution mode to balance the capacity of each battery cluster in the energy storage system if there is a battery cluster with an abnormal battery state in the energy storage system;
[0074] The second balance control module 300 is configured to, if there is no battery cluster with abnormal battery state in the energy storage system, use an equalized power mode or a state-of-charge balance mode to balance the capacity...
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