Redundant circuit of energy storage control device

By designing redundant circuits for the energy storage control device, automatic switching and protection functions are realized, solving the problems of cumbersome operation and high cost in existing energy storage control systems, improving the system's reliability and economy, and ensuring rapid recovery capability and safe operation.

CN223553089UActive Publication Date: 2025-11-14JIANGSU RUIOUBAO ELECTRICAL CO LTD
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Patent Information

Application Number
CN202422845093.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-11-14
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing energy storage control systems involve cumbersome manual switching of control power in large-capacity PCS, which prolongs the switching time. UPS power supply is costly, inefficient, and generates a lot of heat, affecting the system's rapid recovery capability and economy.

Method used

Design a redundant circuit for an energy storage control device, including a DC side and an AC side. Set up a DC circuit breaker, an EMC filter, a bus capacitor, a converter circuit, an AC filter, an AC circuit breaker, an AC/DC power supply module, and a DC/DC power supply module. Automatic switching function realizes automatic switching to DC power supply when AC power fails. Set up diodes to ensure unidirectional conduction. Add protective devices such as fuses and contactors to reduce electromagnetic interference and noise.

Benefits of technology

It improves system reliability and economy, simplifies operation procedures, shortens switchover time, reduces energy consumption and maintenance costs, and ensures safe operation and rapid recovery capability of the system under various working conditions.

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Abstract

The redundant circuit of the energy storage control device comprises a direct current side and an alternating current side, as well as a direct current circuit breaker, a direct current EMC filter, a bus capacitor, a converter circuit, an alternating current filter, an alternating current EMC filter, an alternating current circuit breaker, an AC / DC power supply module and a DC / DC power supply module which are sequentially connected from the direct current side to the alternating current side, the input end of the controller power supply is connected with the output end of the DC / DC power supply module and the output end of the AC / DC power supply module. According to the circuit, power is taken from the AC side and the DC side simultaneously, an AC side power supply is used during normal work, and when the AC side loses power, a controller power supply can be seamlessly switched to the DC side for power supply.
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