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电网技术  2011 

包含同步发电机及电压源逆变器接口的微网控制策略

, PP. 170-176

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Abstract:

分布式电源(distributedgenerator,DG)并网接口方式有同步发电机组(synchronousgenerators,SG)接口和电压源逆变器(voltagesourceinverter,VSI)接口2类,文中提出了包含2种接口方式的微网控制策略。具有SG接口的DG通过其输出的有功功率和无功功率分别对微网的频率和电压进行下垂控制,具有VSI接口的DG通过输出电流的d、q分量分别对微网的频率和电压进行下垂控制。该控制策略可实现微网由联网运行模式向孤岛运行模式的平滑转换,并能够实现功率共享。具有SG接口的DG配置潜遗传变论域模糊控制电力系统稳定器后,可提高微网稳定性。仿真算例验证了该控制策略的有效性。

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