电力系统自动化2017，Vol.41Issue(11)：120-125,168,7.
考虑多无功源的光伏电站两阶段无功电压协调控制策略
Two-stage Reactive Power and Voltage Coordinated Control Strategy for Photovoltaic Power Station Considering Multiple Reactive Power Sources
刘双 1张建周 2王汉林 1柏嵩2
作者信息
- 1. 南瑞集团公司(国网电力科学研究院),江苏省南京市 211106
- 2. 国电南瑞南京控制系统有限公司,江苏省南京市 210061
- 折叠
摘要
Abstract
Considering the regulating performance of multiple reactive power sources, a reactive power and voltage coordinated control strategy which comprehensively utilizes the static var generator (SVG), photovoltaic inverters and capacitors is presented, with two control stages involved.The first stage is coordinated voltage control considering multiple reactive power sources, which maximizes the use of reactive power sources, so as to reduce switching frequency of capacitors, and quickly responds to the change in system reactive power, while maintaining voltage stability at the point of common coupling.The second stage consists in dynamic reactive power optimization control, through the replacement of dynamic reactive power (SVG) with static reactive power (capacitors), and fast reactive power (SVG) with slow reactive power (photovoltaic inverters).The SVG retains sufficient reactive margin, to make the power grid more capable of surmounting the problem of voltage collapse.Finally, the reactive power and voltage control strategy is applied in actual photovoltaic power stations to verify the strategy.关键词
光伏电站/公共连接点/电压控制/无功补偿/协调控制Key words
photovoltaic power station/point of common coupling/voltage control/reactive power compensation/coordinated control引用本文复制引用
刘双,张建周,王汉林,柏嵩..考虑多无功源的光伏电站两阶段无功电压协调控制策略[J].电力系统自动化,2017,41(11):120-125,168,7.
