Energy storage active energy support system, control method thereof and computer device

By introducing equalization circuits and sampling control circuits into the active energy support system for energy storage, the equalization of capacitor voltage is achieved, solving the problem of DC-side capacitor voltage fluctuation, ensuring the safe and stable operation of the system and extending capacitor life.

CN118264107BActive Publication Date: 2026-06-26SHENZHEN POWER SUPPLY BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN POWER SUPPLY BUREAU
Filing Date
2024-03-13
Publication Date
2026-06-26

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    Figure CN118264107B_ABST
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Abstract

The application relates to an energy storage active energy support system, a control method thereof and a computer device. The system comprises a storage battery, a voltage stabilizing assembly, a three-level inverter circuit, an equalizing circuit and a sampling control circuit. The sampling control circuit can acquire a first current output from the equalizing circuit to a midpoint of the voltage stabilizing assembly, a first voltage of the voltage stabilizing assembly, three-phase currents of the three-level inverter circuit and three-phase voltages of an alternating current power grid, and control the equalizing circuit to charge and discharge the first capacitor and the second capacitor according to the acquired voltages and currents, so that a first voltage value between the first capacitor and a second voltage value between the second capacitor are in an equalizing state. The energy storage active energy support system can ensure safe and stable operation of the active support system.
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