配电网故障情况下多微网互联能力分析Analysis on Interconnectivity of Multi-Microgrids Under Fault Condition of Distribution Network
于雷;陈奇芳;段力铭;刘念;张建华;
摘要(Abstract):
配电网故障时,可以通过多微电网互联供电进行黑启动,恢复重要非故障区域的供电。并网时,微电网群工作在与配网同步的工作模式;配电网故障时,各微电网将分别工作在不同的孤网状态。由于微电网内部的微源特性、负荷特性等存在巨大差异,因而在多微电网互联实现配电网黑启动和非故障区域恢复供电之前,需要对多微电网的互联能力进行分析,以保证多微电网互联后微电网群的安全运行。从多微电网互联后系统的频率稳定和备用容量调节能力角度对多微电网的互联能力进行了分析,提出了相应的互联判据;搭建了仿真模型,对多微电网互联后的动态过程进行验证,结果验证为实现多微电网互联提供理论支撑。
关键词(KeyWords): 下垂控制;低频风险;多微网互联;微电网
基金项目(Foundation):
作者(Author): 于雷;陈奇芳;段力铭;刘念;张建华;
Email:
DOI: 10.13335/j.1000-3673.pst.2015.03.015
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