微网暂态稳定性研究

Review on Transient Stability of Microgrid

随着以各种分布式发电技术为基础的微网技术的快速发展,微网暂态稳定性已成为微网研究中的一项重要内容。由于微网的结构和控制策略等在不同的应用场合不尽相同,因而微网的暂态稳定问题较为复杂。针对以上问题,从影响微网暂态稳定性的4个主要方面,包括分布式微源类型、微源接口类型、负载特性和故障类型,对微网的暂态稳定性进行了总结。在此基础上,总结了提高微网暂态稳定性的主要措施。最后,探讨了微网暂态稳定性研究所亟需解决的关键问题,并就相关研究方向进行了展望。

With the rapid development of microgrid technology based on various distributed generators,the transient stability problem has now become one of the most important contents in researches of microgrid system.Both structure and control strategy of microgrid vary with different applications,so the transient stability of microgrid is very complex.In order to solve the problem,the effects on the transient stability of microgrid are summarized from four main aspects:the types of distributed generation,power electronic interface,the load and fault in microgrid,which affects the dynamic behavior of microgrid when subjecting to large disturbances,and the measures to improve its transient stability are summarized.Finally,key issues and prospects on microgrid transient stability to be solved are presented.