郑征, 张茜, 张涛, 等.基于重复控制的电力弹簧研究[J].河南理工大学学报（自然科学版）,2021,40(3):106-112.

ZHENG Z, ZHANG X, ZHANG T,et al.Study on the electric spring based on repetitive control[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(3):106-112.

基于重复控制的电力弹簧研究

郑征, 张茜, 张涛, 王永帅, 高卫星

河南理工大学 电气工程与自动化学院，河南 焦作454000

摘要:在大力推广新能源的背景下，微电网技术不断发展。由于新能源的不可预测性、分布式电源的动静态特性、大量电力电子装置的使用，使得微电网中电压、频率等一系列电能质量参数受到明显干扰。为解决这一系列问题，电力弹簧（electric spring，ES）控制器的设计和研究便成为当前热点。针对目前电力弹簧谐振控制策略存在的不足，提出准比例谐振控制和重复控制相并联的复合控制方法。准比例谐振控制器实现对基波正弦信号的无静差跟踪，重复控制器作为谐波补偿器抑制电网低次谐波，降低系统谐波总畸变率。分析重复控制器的设计原理，并建立MATLAB模型进行仿真，结果表明，改进后的控制结构具有良好的动态性能和更高的稳态精度，在实现更强的抗谐波干扰能力的同时简化了系统控制算法。

关键词:电力弹簧;相位控制算法;准比例谐振控制器;重复控制器

doi:10.16186/j.cnki.1673-9787.2020010040

基金项目:河南省科技攻关项目（192102210228 ）；河南省高等学校重点科研项目（18A410001 ）；河南理工大学创新型科技团队基金 资助项 目（CXTD2017085 ）

收稿日期:2020/01/12

修回日期:2020/05/15

出版日期:2021/05/15

Study on the electric spring based on repetitive control

ZHENG Zheng, ZHANG Xi, ZHANG Tao, WANG Yongshuai, GAO Weixing

School of Electrical Engineering & Automation， Henan Polytechnic University， Jiaozuo 454000 ， Henan， China

Abstract:Under the background of vigorously promoting of new energy， micro grid technology is developed continuously. Due to the unpredictability of new energy， the dynamic and static characteristics of distributed power supply， and the use of a large number of power electronic devices， a series of power quality parameters such as voltage and frequency in micro grid are obviously disturbed. In order to solve these problems， the design and research of electric spring （ ES） controller has become a hot topic. Aiming at the shortcomings of the resonance control strategy of ES， an improved control strategy combining proportional-resonant control with repetitive control was put forward. The quasi-proportional resonant controller could track the fundamental sinusoidal signal without static error， and the repetitive controller could suppress the low order harmonics as the harmonic compensator and reduce the total harmonic distortion rate of the system. In addition， the design principle of repetitive controller was analyzed in detail and the MATLAB simulation model was established. The results showed that the improved control structure had good dynamic performance， higher steady-state accuracy， and the system control algorithm was simplified while realizing the stronger anti-harmonic interference ability.

Key words:electric spring;phase control algorithm;quasi-proportional resonance controller;repetitive controller

 基于重复控制的电力弹簧研究_郑征.pdf