电力电子并网变流器非线性行为机理与安全运行边界研究综述  

A review of nonlinear behavior mechanism and safety operation boundary for power electronics grid-connected converters

作　　者：黄萌[1,2] 刘浴霜 付熙坤 陈永洋 查晓明[1] HUANG Meng;LIU Yushuang;FU Xikun;CHEN Yongyang;ZHA Xiaoming(Hubei Key Laboratory of Power Equipment&System Security for Integrated Energy,Wuhan University,Wuhan 430072,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;Department of Automation,Tsinghua University,Beijing 100086,China)

机构地区：[1]武汉大学综合能源电力装备及系统安全湖北省重点实验室,湖北武汉430072 [2]武汉大学电气与自动化学院,湖北武汉430072 [3]清华大学自动化系,北京100086

出　　处：《武汉大学学报（工学版）》2023年第11期1380-1392,共13页Engineering Journal of Wuhan University

基　　金：国家自然科学基金项目(编号:52222707)。

摘　　要：在电网故障、功率波动等扰动工况下,并网变流器大幅偏离其设计工作点,威胁设备自身和电力系统安全。针对以上稳定运行问题,综述了电网同步、功率传输和开关调制环节的非线性行为机理,给出了常用的研究方法和结论。在此基础上,提出了并网变流器层次化安全边界,梳理了当前安全边界研究结果和应用方法,分析了各层边界的嵌套影响关系。最后对未来并网变流器的设计运行技术进行了展望。With the fast development of renewable energy power generation and DC transmission technologies,high-power power electronic grid-connected converters are widely used in power systems.However,under disturbance conditions such as grid faults and power fluctuations,grid-connected converters deviate significantly from their design operating points,threatening the safety of the equipment itself and the power system.In view of the above stable operation problems,the nonlinear behavior mechanisms of grid synchronization,power transmission and switching modulation links are summarized,and the commonly used research methods and conclusions are reviewed.On this basis,the hierarchical safe operation boundary of grid-connected converters is proposed,and the current research results and application methods of safe operation boundary are reviewed,and the nested influence relationship of each layer boundary is analyzed.Finally,prospects for the design and operation technology of grid-connected converters in the future are discussed.

关 键 词：并网变流器 电网扰动 非线性 安全边界 稳定运行 

分 类 号：TM76[电气工程—电力系统及自动化]