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针对飞轮储能传统的永磁同步电机变频调速控制方法启动过程中存在的功率期望值与实际值存在误差、电磁功率升高造成系统内部干扰、控制参数整定难度较大等问题，以经典矢量控制策略为基础，通过分阶段切换控制目标和参考值，将模糊控制技术与PI控制器相结合，提出了基于模糊PID控制的飞轮储能分阶段并网启动控制方法，并基于MATLAB/Simulink建立飞轮储能并网启动仿真模型。仿真结果表明，在飞轮电机启动过程、负载转矩给定过程、转速指令突变过程中，PI控制器参数能够实现自整定，飞轮电机的电磁转矩与转速调节时间明显缩短，调节速度能够提升近50%，各阶段直流母线电压能够保持恒定，波动较小，保证变流器稳定运行，提出的控制方法能够解决由于控制目标切换带来的参数整定困难问题，提升控制系统的动态性能。
Abstract：Compared with other traditional energy storage technologies, flywheel energy storage has the characteristics of minute second level, high power, long lifespan, high efficiency, and high density, and has become one of the most promising energy storage technologies for future new power systems. This paper focuses on the problems of error between the expected and actual power values, internal interference caused by electromagnetic power increase, and difficulty in adjusting control parameters during the start-up process of the traditional permanent magnet synchronous motor variable frequency speed control method for flywheel energy storage. Based on the classical vector control strategy, by switching control objectives and reference values in stages, combining fuzzy control technology with PI controller, a flywheel energy storage staged grid connected start-up control method based on fuzzy PID control is proposed. A simulation model for flywheel energy storage grid connected start-up is established based on MATLAB/Simulink. The simulation results show that during the starting process of the flywheel motor, the load torque setting process, and the speed command mutation process, the PI controller parameters can achieve self-tuning. The electromagnetic torque and speed adjustment time of the flywheel motor are significantly shortened, and the adjustment speed can be increased by nearly 50%. The DC bus voltage at each stage can be kept constant with small fluctuations, ensuring stable operation of the inverter, which verifies that the proposed control method can solve the difficulty in parameter tuning caused by control target switching and improve the dynamic performance of the control system.
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基本信息:
DOI：10.19929/j.cnki.nmgdljs.2024.0073
中图分类号:
引用信息:
[1]郑博文,任正,王新宇,等.基于模糊PI控制的飞轮储能分阶段并网启动控制策略分析[J],2024,42(06):1-7.DOI:10.19929/j.cnki.nmgdljs.2024.0073.
基金信息:
国家电网公司科技项目“新型储能-发电联合系统主动支撑电网调控技术与低碳决策研究”（5100-202199535A-0-5-ZN）