一种逆变并网型分布式电源统一模型

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Abstract In order to study the influence of distributed power generation(DG) on composite load characteristics of distribution network, this paper make a study on the general and specific features of grid-connected DG through inverter in detail, such as micro-turbine generation(MTG), photovoltaic(PV), fuel cell(FC), and directly driven wind turbine with permanent magnet synchronous generator (D-PMSG). A unified dynamic model composed of a controlled voltage source and an equivalent impedance in series is proposed and its integrated analytical description is deduced here. The model parameters are identified by a synthetically improved genetic algorithm under different voltage disturbance levels, and then its self-description ability, generalization ability and parametric stability are verified. The verification indicates that the unified model has high applicability and can well describe the equivalent dynamic characteristic of grid-connected DG through inverters.

Key words： Power system distributed power generation grid-connected inversion unified dynamic model

Received: 28 August 2012 Published: 25 March 2014

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TM715

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	Ma Yahui
	Li Xinran
	Xu Zhenhua
	Wang Ling
	Wei Xiaoyan

Cite this article:

Ma Yahui,Li Xinran,Xu Zhenhua等. A Unified Model of Grid-Connected Distributed Generation through Inverters[J]. Transactions of China Electrotechnical Society, 2013, 28(9): 145-154.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I9/145

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