VSG附加自抗扰阻尼控制抑制低频振荡研究  

Research on VSG Additional Active Disturbance Rejection Damping Control to Suppress Low Frequency Oscillations

作　　者：曾四鸣 梁纪峰 马燕峰[2] 郑力文 李铁成 罗蓬 张珺[2] ZENG Siming;LIANG Jifeng;MA Yanfeng;ZHENG Liwen;LI Tiecheng;LUO Peng;ZHANG Jun(State Grid Hebei Electric Power Research Institute,Shijiazhuang 050021,Hebei,China;Key Laboratory of Distributed Energy Storage and Microgrid of Hebei Province(North China Electric Power University),Baoding 071003,Hebei,China;China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [2]河北省分布式储能与微网重点实验室(华北电力大学),河北保定071003 [3]中国电力科学研究院有限公司,北京100192

出　　处：《电网与清洁能源》2022年第11期27-34,共8页Power System and Clean Energy

基　　金：河北省电力公司科技项目(TSS2020-006);河北省自然科学基金资助项目(E2017502077)。

摘　　要：针对新能源大量并网降低系统惯性和阻尼引起电网功率振荡的问题,提出了基于自抗扰控制(active disturbance rejection control,ADRC)的VSG有功附加阻尼控制策略来抑制低频振荡。首先介绍自抗扰控制器并分析附加阻尼控制抑制低频振荡的机理,然后给出控制环节中参数的取值原则,最后以VSG接入单机无穷大系统和IEEE 4机系统为例进行仿真,结果表明,附加自抗扰阻尼控制器能有效抑制系统的功率振荡,有较强的鲁棒性。Aiming at the question of the grid power oscillations caused by a large number of new energy resources connected with the grid and leading to the reduction of system inertia and damping,a VSG active additional damping control strategy based on active disturbance rejection control(ADRC)is proposed to suppress lowfrequency oscillation. First,the active disturbance rejection controller is introduced and the mechanism of additional damping control to suppress low-frequency oscillation is analyzed,and then the parameter selection principle in the control link is given.Finally,the VSG is connected to the single machine infinite bus system and the IEEE 4-machine system as examples for simulation.The results show that the ADRC additional damping controller can effectively suppress the power oscillation of the system and has strong robustness.

关 键 词：虚拟同步发电机 自抗扰控制 附加阻尼控制 鲁棒性 

分 类 号：TM71[电气工程—电力系统及自动化]