Dominant Device Identification in Multi-VSC Systems by Frequency-Domain Participation Factor

被引:1
作者
Yang, Ziqian [1 ]
Zhan, Meng [2 ]
Tang, Wangqianyun [1 ]
机构
[1] Inst New Power Syst, China Southern Power Grid Elect Power Res Inst SEP, Guangzhou 510663, Guangdong, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Hubei Elect Power Secur & High Efficiency Key Lab, Wuhan, Peoples R China
基金
中国国家自然科学基金;
关键词
Power system stability; Transfer functions; Eigenvalues and eigenfunctions; Frequency-domain analysis; Transmission line matrix methods; Synchronization; Phase locked loops; Small-signal analysis; participation factor; grid-forming; power imbalance model; multi-VSC system; POWER ELECTRONICS; INSTABILITY; STABILITY;
D O I
10.1109/ACCESS.2023.3288148
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
With fast development of power electronic technology, the power system is undergoing a great revolution to a power-electronic-based one and it poses a great challenge to the dominant device identification for the system stability analysis. As an alternative approach, this paper proposes a frequency-domain participation factor method based on the open-loop transfer function matrix of power imbalance model. It also clarifies the relation between different (time-domain, frequency-domain closed-loop, and frequency-domain open-loop) participation factor analytical methods, showing that they are all certain sensitivities against parameter disturbance on different matrix elements. Furthermore, by using this method we study the classical IEEE 10-generator-39-bus system where the synchronous generators are completely replaced by grid-following or grid-forming converters and show that the system stability can be improved by modifying the corresponding parameters of the identified dominating converter.
引用
收藏
页码:90190 / 90200
页数:11
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