Control method of energy storage converter and power distribution system

By adopting the control method of energy storage converter in the power grid, the burden of distribution transformer is shared, the single-phase overload problem is solved, and the stability and reliability of the power grid are improved.

CN119726828APending Publication Date: 2025-03-28SHENZHEN KSTAR NEW ENERGY CO LTD
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Patent Information

Application Number
CN202411860125.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the power grid, the access of a large number of single-phase loads is likely to cause single-phase overload, resulting in a decrease in transformer utilization efficiency, further aggravating the instability and reliability of power supply.

Method used

The control method of the energy storage converter is adopted, and the preset power borne by the energy storage converter is determined through the maximum power distribution strategy, and data preprocessing and current loop control are carried out, and the output current of the energy storage converter is adjusted to share the power supply burden of the distribution transformer.

Benefits of technology

The energy storage converter is able to bear the maximum load power, share the burden of distribution transformers, and improve the power supply stability and reliability of the grid station area.

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Abstract

The invention provides a control method of an energy storage converter and a power distribution system, the control method follows a maximum power distribution strategy, and the preset power needing to be borne by the energy storage converter is determined according to the load power of a power grid area and the rated power of the energy storage converter. And performing data preprocessing on the preset power, the power grid voltage and the output current of the energy storage converter. According to the pre-processing results of the preset power, the power grid voltage and the output current, current loop control is carried out, and a control signal for the energy storage converter is determined to adjust the output current of the energy storage converter, so that the energy storage converter can bear the load power to the maximum extent, and the burden of the distribution transformer is shared to the maximum extent; and the power supply stability and reliability of the corresponding power grid area are greatly improved.
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