基于限转矩控制的风储联合调频控制策略

doi:10.19595/j.cnki.1000-6753.tces.181472

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Abstract In order to enhance the dynamic frequency regulation ability of microgrid containing wind power in island operation, a new inertial control method based on torque limit control is added to the doubly fed induction generator (DFIG), which provide faster frequency support when the load is disturbing. The effects of the incremental power and the curtailment power on the rotor speed recovery and secondary frequency drop of DFIG are analyzed in detail, the coordinated frequency control strategy of DFIG wind turbine and energy storage system is proposed. By combining the fast inertia output capacity of the wind turbine and the flexibility of the stored energy output, the wind turbine and energy storage are coordinated with each other to complete the dynamic frequency regulation, the secondary frequency drop generated by the torque limit control is eliminated and the dynamic regulation ability of the frequency is enhanced. Finally, a 10kV microgrid model was built in the DIgSILENT/PowerFactory simulation software, the simulation results showed that the proposed control strategy is valid.

Key words： Doubly fed induction generator (DFIG) torque limit control inertia secondary frequency drop energy storage

Received: 10 September 2018 Published: 11 December 2019

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TM71

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	Zhao Jingjing
	Li Min
	He Xinqin
	Zhu Renjie

Cite this article:

Zhao Jingjing,Li Min,He Xinqin等. Coordinated Control Strategy of Wind Power and Energy Storage in Frequency Regulation Based on Torque Limit Control[J]. Transactions of China Electrotechnical Society, 2019, 34(23): 4982-4990.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181472 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I23/4982

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