摘要
随着电力系统中风电量的增加,发电机组与电网之间的相互影响越来越大,电力系统对并网风力发电机组在外部电网故障和机组内部故障下的不间断运行能力提出了更高的要求。介绍了可靠性基本理论,分析了电机、变流器和电网的可能故障,总结和评价了各种提高直驱永磁风电系统可靠性技术的措施,讨论了未来风力发电系统可靠性技术发展的主要方向,为研究具有故障容错能力和高可靠性的直驱永磁风力发电系统提供了理论基础。
With the increase of wind-generated electricity injected into power grid, the interaction between wind power generation sets and power grid becomes more and more evident, therefore power grid makes a higher requirement for the uninterrupted operation ability of wind power generation sets under external faults occurred in power grid and internal faults occurred in wind power generation sets. The basic theory of reliability is presented and the possible faults occurred in wind generation sets, converters and power grid are analyzed; the measures to improve the reliability of direct drive permanent magnet wind power generation system are summarized and evaluated; the main development trend of reliability technology for wind power generation system in future is discussed to offer theoretical basis for the development of direct drive permanent magnet wind power generation system with fanlt-tolerant ability and high reliability.
出处
《电网技术》
EI
CSCD
北大核心
2011年第9期144-151,共8页
Power System Technology
基金
湖南省自然科学基金与湘潭市自然科学基金联合资助重点项目(10JJ8003)
关键词
直驱永磁风力发电机
可靠性
故障容错
冗余
direct drive permanent magnet wind powergenerator
reliability
fault tolerance
redundancy
