含大规模风电接入电网的双时间尺度无功协调控制  

Double-time scale reactive power control with large-scale wind power integrated into grid

作　　者：刘文颖[1] 郭鹏[1] 但扬清[2] 李亚龙[1] 蔡万通 文晶[3] 谢昶[3] 刘福潮[4] Liu Wenying Guo Peng Dan Yangqing Li Yalong Cai Wantong Wen Jing Xie Chang Liu Fuchao(l.North China Electric Power University, Beijing 102206, China State Grid Zhejiang Electric Power Company Economic and Technology Research Institute, Hangzhou 310007, China China Electric Power Research Institute,Beijing 100192,China State Grid Gansu Electric Power Company Electric Power Research Institute, Lanzhou 730050, China)

机构地区：[1]华北电力大学,北京102206 [2]国网浙江省电力公司经济技术研究院,浙江杭州310007 [3]中国电力科学研究院,北京100192 [4]国网甘肃省电力公司电力科学研究院,甘肃兰州730050

出　　处：《可再生能源》2016年第12期1811-1818,共8页Renewable Energy Resources

基　　金：国家科技支撑计划项目(2015BAA01B04);国家电网公司重大项目(52272214002C);中央高校基本科研业务费专项资金资助项目(2015XS06)

摘　　要：大规模风电集中并网已经成为中国风电送出的主要模式,通过配置无功补偿装置,使电网无功电压波动问题得到了大幅改善,但电压波动问题在局部地区仍然存在。文章将无功补偿装置分为离散控制和连续控制两类,针对汇集站电压的长周期大幅度波动分量和短周期小幅度波动分量,提出分别应用离散和连续无功补偿装置在小时级和分钟级时间尺度上进行抑制;在此基础上,提出了两类无功补偿装置滚动协调控制策略。通过对我国某大规模风电集中接入电网进行仿真计算,验证了所提控制策略可有效解决电压波动问题,显著提高了含大规模风电接入电网的电压运行水平。It had been the main mode in China that large-scale wind power being transmitted through long distance. With configuration of reactive power compensation devices, the voltage fluctuation had been significantly restrained, but it still exists at local areas. This paper classifies reactive power compensation devices into discrete and continuous ones. To suppress voltage fluctuations of collecting stations with large amplitude and long period, and voltage fluctuations with small amplitude and short period, discrete and continuous reactive power compensation devices are employed in hour-scale and minute-scale respectively. Further, a rolling coordinative control strategy of discrete and continuous reactive power compensation devices is proposed. Taking a system with large-scale wind power integration as the case, it is verified that the proposed control method can effectively solve the problem of voltage fluctuation and significantly improve operational voltage quality.

关 键 词：双时间尺度 汇集站 电压波动 无功协调控制 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TM761[电气工程—电力系统及自动化]