Charging pile regulation and control method and device

By collecting the frequency deviation of the power grid and using virtual sag and inertia control strategies to regulate the output of the charging pile, the problem of the power grid overload caused by the traditional charging pile cannot quickly adjust the strategy is solved, and dynamic adjustment and stable operation of the power grid load are achieved.

CN119675075APending Publication Date: 2025-03-21STATE GRID ELECTRIC VEHICLE SERVICE CO LTD +1
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Patent Information

Application Number
CN202411652873.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

Traditional charging piles cannot quickly adjust their strategies when the grid load changes or charging demand surges, resulting in unstable grid overload and generator parallel connection, resulting in grid trawling.

Method used

By collecting the frequency deviation of the power grid, the virtual sag control strategy and virtual inertia control strategy are used to regulate the output of the charging piles, and dynamic adjustment of the grid load is achieved.

Benefits of technology

It can reduce the grid load in a timely manner, avoid the occurrence of trawling phenomena, and ensure the stable operation of the power grid.

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Abstract

The invention relates to the technical field of power grid stable operation control, and particularly provides a charging pile regulation and control method and device, and the method comprises the steps: collecting the frequency of a power grid connected with a charging pile, and obtaining the frequency deviation of the power grid based on the collected frequency of the power grid; and regulating and controlling the output of the charging pile by adopting a virtual droop control strategy and a virtual inertia control strategy based on the power grid frequency deviation. According to the technical scheme, when it is detected that the power grid frequency deviates from the set value, the external output power of the charging pile is adjusted immediately, the power grid load can be reduced in time, and the phenomenon of trawling is avoided.
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