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

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 genera...

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Bibliographic Details
Published inEnergies (Basel) Vol. 13; no. 19; p. 5220
Main Authors Xing, Facai, Xu, Zheng, Zhang, Zheren, Dan, Yangqing, Zhu, Yanwei
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2020
Subjects
Alternative energy sources
Coordinate transformations
Dynamic characteristics
Electrical impedance
Frequency ranges
Generators
Impedance
Influence
Methods
negative-resistance effect
Nodal admittance matrix
Resonance
resonance stability
s-domain nodal admittance matrix method
Simulation
Stability analysis
Structural analysis
Type-IV wind generator (WG)
Variables
Wind effects
Wind farms
Wind power
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13195220