基于耗散哈密顿模型的电容电流反馈并网控制策略  

Capacitor Current Feedback Grid⁃connected Control Strategy Based on Port⁃controlled Hamiltonian Model With Dissipation

作　　者：张立中 王圣杰 康乐 刘家旭 徐悦 ZHANG Lizhong;WANG shengjie;KANG Le;LIU Jiaxu;XU Yue(Information&Communication Company of Ningxia Electric Power Co.,Ltd.,Yinchuang 750001,China)

机构地区：[1]国网宁夏电力有限公司信息通信公司,银川750001

出　　处：《电力电容器与无功补偿》2023年第3期103-111,共9页Power Capacitor & Reactive Power Compensation

基　　金：国家电网宁夏电力公司科技项目(5229XT20001X)。

摘　　要：采用LCL型滤波器的并网逆变器具有抑制高频电流谐波的能力,然而LCL型滤波器的频率响应存在一个谐振尖峰。基于电容电流反馈的无源或者有源阻尼方法可在一定程度上抑制谐振尖峰,但是其没有详细考虑逆变器输出电能质量和抗参数扰动性能。因此,本文将电容电流反馈方法与耗散哈密顿模型的无源控制策略相结合,其不仅能够有效抑制谐振尖峰,而且可以提高系统的鲁棒性、动静态性能、以及电能质量。基于Matlab/Simulink仿真实验验证了本文所提方法的有效性。The grid⁃connected inverter with an LCL⁃type filter has the ability of suppressing the high⁃frequency current harmonics.However,the frequency response of an LCL⁃type filter has a resonance peak.Either passive or active damping method based on capacitor current feedback can,to some extent,suppress peak of resonance.However,the output power quality and anti parameter fluctuation performance of the inverter is not considered in detail.Therefore,the combination of capacitor current feedback with port⁃controlled hamiltonian with dissipation(PCHD)strategy in this paper can not only effectively suppress the resonance peak,but also improve the robustness,dynamic and static performance,and power quality of the system.The effectiveness of the method proposed in this paper is verified by the simulation experiment based on Matlab/Simulink.

关 键 词：LCL型并网逆变器 电容电流反馈 耗散哈密顿模型 谐振尖峰 电能质量 

分 类 号：TM464[电气工程—电器]