快速响应磁控电抗器在光伏电站的应用

Application of the Fast Response Magnetically Controlled Reactors in Photovoltaic Power Plant

为满足光伏、风电、冶金等行业对动态无功补偿装置响应速度的需要,本文以光伏为例介绍了光伏发电系统组成及并网特性,分析了快速响应磁控电抗器的基本原理,提出了实现快速响应的几种方式,仿真并测试了具体响应时间,提出了在光伏并网电站采用快速响应磁控电抗器型动态无功补偿装置可较好地解决由于并网带来的诸多电能质量问题。分析并总结了在具体工程设计中应根据系统实际采取不同的励磁方式及控制策略以满足系统要求,达到需要的响应时间。

For meeting the need of response speed of dynamic reactive power compensation device in such industries as photovoltaic ,wind power and metallurgy etc.,the composition of photovohaic generating power system and the grid connected characteristics are introduced by taking photovohaic as an example. The basic principle of fast responsive magnetically controlled reactors （MCR） is analyzed, several ways of achieving fast response for the MCR is proposed and specific response time is simulated and tested. Solving multiple power quality problems due to grid connected with fast response MCR dynamic reactive power compensation device in photovohaic plant is proposed. Finally, Adoption of different excitation modes and control strategy as per actual situation of the system in the engineering design is analyzed and summarized so to meet system requirement and reach required response time.