直驱风机惯量支撑与一次调频协调控制策略

doi:10.19595/j.cnki.1000-6753.tces.L90078

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Abstract On the basis of the traditional MPPT control, adding inertia support and primary frequency regulation can make grid-connected wind turbines show friendliness characteristics. It is very important to design the energy supply mode of regulation function reasonably, and the coordination control between different functions is the technical difficulty. The paper focuses on single grid-connected direct-driven wind turbine, proposing a coordinated control strategy of inertia support and primary frequency regulation over full-range of wind speed. By regulating the reference active power of the controller,the proposed strategy adopts the rotor kinetic energy to realize inertial support, and uses the additional energy storage device combining with variable power tracking control to provide the energy of primary frequency regulation. This proposed strategy not only can reduce the need of energy storage configuration, but also solves the problem of frequency secondary drop. Besides, it avoids the problems of energy loss and insufficient regulating margin which are caused by conventional spare capacity for load reduction. Finally, the feasibility and effectiveness of the theory are verified by simulation.

Key words： Virtual inertia primary regulation super capacitor variable power point tracking (VPPT) coordinated control

Received: 20 June 2020

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TM74

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	Yan Xiangwu
	Wang Desheng
	Yang Linlin
	Jia Jiaoxin
	Li Tiecheng

Cite this article:

Yan Xiangwu,Wang Desheng,Yang Linlin等. Coordinated Control Strategy of Inertia Support and Primary Frequency Regulation of PMSG[J]. Transactions of China Electrotechnical Society, 2021, 36(15): 3282-3292.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90078 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I15/3282

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