Resonance Stability Analysis of Large-Scale Wind Power Bases with Type-IV Wind Generators

Facai Xing, Zheng Xu, Zheren Zhang, Yangqing Dan and Yanwei Zhu
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Facai Xing: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Zheng Xu: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Zheren Zhang: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Yangqing Dan: Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310027, China
Yanwei Zhu: State Grid Ningbo Power Supply Co., Ltd., Ningbo 315000, China

Energies, 2020, vol. 13, issue 19, 1-15

Abstract: To guarantee the reliable and efficient development of wind power generation, oscillation problems in large-scale wind power bases with Type-IV generators are investigated from the view of resonance stability in this paper. Firstly, the transfer characteristics of disturbances in Type-IV wind generators are analyzed to establish their impedance model, based on the balance principle of frequency components. Subsequently, considering the dynamic characteristics of the transmission network and the interaction among several wind farms, the resonance structure of a practical wind power base is analyzed based on the s-domain nodal admittance matrix method. Furthermore, the unstable mechanism of the resonance mode is further illustrated by the negative-resistance effect theory. Finally, the established impedance model of the Type-IV wind generator and the resonance structure analysis results of the wind power bases are verified through the time-domain electro-magnetic transient simulation in PSCAD/EMTDC. Case studies indicate that there is a certain resonance instability risk in large-scale wind power bases in a frequency range of 1–100 Hz, and the unstable resonance mode is strongly related to the negative-resistance effect and the capacitive effect of Type-IV wind generators.

Keywords: resonance stability; Type-IV wind generator (WG); s-domain nodal admittance matrix method; negative-resistance effect (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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