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电网技术  2011 

含逆变型分布式电源的微网故障特征分析

, PP. 147-152

Keywords: 微网,故障特征,逆变型分布式电源,恒功率控制,恒电压频率控制

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Abstract:

微网中的微电源大多是逆变型分布式电源,其故障特征不同于传统的同步发电机,详细分析逆变型分布式电源的故障特征,以及由此类电源组成的微网的故障特征是微网保护的基础。在DigSilent仿真软件上建立了恒功率控制和恒电压频率控制的逆变型分布式电源,以及孤岛和并网2种运行模式下微网的仿真模型,分析线路发生不同故障时电源侧及故障线路的故障特征,提出了不同控制方式下微电源的等效模型,为微网保护提供了依据。

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