基于模糊PI的储能变流器控制策略

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中图分类号：TM464 文献标志码：A

文章编号：1672-7010（2025）06-0065-09

Control strategy for power conversion system based on fuzzy PI

TANG Jie'，LEI Yang，SHAO Wu， YANG Haineng （1.Hunan Provincial Key Laboratory of Power Grids Operation and Control on Multi-Power Sources Area， Shaoyang 42200，China；2. Schol of Electrical Engineering，Shaoyang University，Shaoyang 422000，China; 3. School of Automotive and Intelligent Manufacturing，Shaoyang Polytechnic， Shaoyang 422OoO，China）

Abstract：To address issues of voltage fluctuation，slow dynamic response，and high harmonic distortion during charge-discharge mode switching in power conversion system（PCS），a fuzzy PI-based PCS control strategy is proposed.By combining fuzzy logic with conventional PI control，a composite controler with parameter self tuning is designed to mitigate excessive overshoot and long settling time under sudden load changes.Simulations in MATLAB/Simulink show that compared with traditional PI control，the proposed method reduces DC bus voltage overshoot by over 50% ，shortens power tracking response time，and lowers grid -side current THD from 0.70% to 0.28% . The strategy enhances both dynamic performance and power quality of PCS during mode transitions，ofering a reliable control solution for the stable operation of energy storage systems.

Key words： power conversion system; fuzzy PI control; dual-loop voltage and current control

高渗透率风电电力系统安全稳定运行是构建以风电为重要组成的新型电力系统、如期实现“双碳”战略目标的前提。（剩余6319字）