高电压技术2017，Vol.43Issue(7)：2140-2145,6.DOI:10.13336/j.1003-6520.hve.20170628006
基于柔性直流分区互联的受端城市电网无功电压控制策略
Reactive Power and Voltage Control Strategy of Receiving-end Urban Power Grid with Flexible DC Interconnected Between Partitions
摘要
Abstract
Power supply partitions interconnected with flexible DC is an effective method to solve the reactive power and voltage problem of receiving-end urban power grid.Aiming at reactive power and voltage characteristics of receiving-end urban power grid under different operation mode,we propose a reactive power and voltage control strategy around flexible DC.During light load period,through the coordination between flexible DC and traditional reactive power equipment on regulation sequence,the correction control of global over high voltage and reactive power over compensation is realized.During heavy load period,through reactive power replacement control between flexible DC and traditional reactive power equipment,the dynamic reactive power support capacity of receiving-end urban power grid is improved.This control strategy has been applied to automatic voltage control(AVC) system,and the practical example results show that the method can meet the requirements of reactive power and voltage operation control at different load levels of receiving-end urban power grid,and the quality of reactive power and voltage can be improved effectively.关键词
柔性直流/受端城市电网/无功电压/轻负荷时段/重负荷时段/自动电压控制Key words
flexible DC/receiving-end urban power grid/reactive power and voltage/light load period/heavy load period/automatic voltage control引用本文复制引用
于汀,蒲天骄,刘广一,黄仁乐,杨增辉..基于柔性直流分区互联的受端城市电网无功电压控制策略[J].高电压技术,2017,43(7):2140-2145,6.基金项目
国家高技术研究发展计划(863计划)(2015AA050102) （863计划）
国家电网公司科技项目(52094016000Y) （52094016000Y）
中国电力科学研究院创新基金(DZ83-16-037).Project supported by National High-tech Research and Development Program of China (863 Program) (2015AA050102),Science and Technology Project of SGCC(52094016000Y),China Electric Power Research Institute Innovation Fund Projects(DZ83-16-037). （DZ83-16-037）
