光储柴独立微电网中的虚拟同步发电机控制策略

doi:10.19595/j.cnki.1000-6753.tces.160520

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Abstract This paper investigates a control strategy for islanded microgrid, including renewable energy, diesel generator set (DGS) and battery energy storage system based on virtual synchronous generator (VSG). Firstly, the DGS equivalent mathematical model is built to illustrate the step response characteristics of the DGS output voltage and rotating speed in a synchronous rotating reference frame. Besides, an improved VSG strategy adapted to the hierarchical coordinated control of islanded microgrid, which takes into full consideration the control characteristics of both the DGS and the VSG, is proposed. Furthermore, a virtual impedance control loop is added to the basic VSG controller to compensate for the system distorted voltage flexibly. Finally, the proposed strategy is demonstrated in detail and validated with a islanded mircogrid consisting of two 100 kV·A VSGs and a 440 kW DGS under various conditions.

Key words： Diesel generator set (DGS) islanded microgrid virtual synchronous generator (VSG) hierarchical coordinated control virtual impedance

Received: 13 April 2016 Published: 22 December 2017

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TM464

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	Shi Rongliang
	Zhang Xing
	Xu Haizhen
	Hu Chao
	Yu Yong

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Shi Rongliang,Zhang Xing,Xu Haizhen等. A Control Strategy for Islanded Photovoltaic-Battery-Diesel Microgrid Based on Virtual Synchronous Generator[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 127-139.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160520 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I23/127

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