Study on the resonance stability problem of the wind power base with the MMC–HVDC system

The Journal of Engineering

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[1] College of Electrical Engineering, Zhejiang University, Hangzhou, People's Republic of China;State Grid Xinjiang Electric Power Co., Ltd, Urumqi, People's Republic of China;

关键词: HVDC power transmission;    permanent magnet generators;    asynchronous generators;    power system stability;    damping;    wind power plants;    synchronous generators;    HVDC power convertors;    wind turbines;    power grids;    voltage-source convertors;    resonance stability problem;    MMC–HVDC system;    negative resistance effect;    power electronic equipment;    unstable resonance problems;    wind farms;    converter stations;    wind power base coupling;    multilevel converter−high-voltage direct-current transmission system;    s-domain impedance models;    induction wind generator;    permanent magnet synchronous wind generator;    s-domain nodal admittance matrix method;    resonance structure;    resonance mode frequencies;    resonance mode damping factors;    nodal voltage mode shapes;    wind turbines;    MMC station;   

DOI  :  10.1049/joe.2018.8480

来源: publisher

【 摘 要 】

Considering the negative resistance effect of power electronic equipment, unstable resonance problems may occur between wind farms and converter stations. This paper focuses on the resonance stability problem of a wind power base coupling with a multi-level converter−high-voltage direct-current transmission (MMC–HVDC) system. Firstly, the s-domain impedance models of the doubly-fed induction wind generator, the permanent magnet synchronous wind generator, and the modular MMC are built, through the theoretical derivation and simulation test. Secondly, based on the s-domain nodal admittance matrix method, the resonance structure of the wind power base coupling with an MMC–HVDC system is analysed, including the resonance mode frequencies, the resonance mode damping factors, the nodal participation factors, and the nodal voltage mode shapes. Thirdly, the main factors influencing the resonance structure are studied, including the topology of the wind power base, the capacity of the wind turbines, and the operation mode of the MMC station. Finally, a brief conclusion ends the paper.

【 授权许可】

CC BY