局部电网无功功率优化控制策略分析  

Optimization Control Strategy Analysis of Local Power Grid Reactive Power

作　　者：刘昭睿[1] 杨海霞 郭厚静[1] 

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]内蒙古国合电力有限责任公司,呼和浩特010020

出　　处：《内蒙古电力技术》2014年第3期15-18,共4页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司2013年第二批科技项目

摘　　要：内蒙古国合电力有限责任公司国合220 kV开闭站及国奥双回线承担着向蒙古国奥尤陶勒盖(OT)项目送电的任务。对国奥双回线进行多种运行方式潮流计算,分析不同运行电压和负荷情况下国奥双回线的供电能力。针对在OT侧负荷较低时国合开闭站运行功率因数偏低问题,从电网电压、OT侧负荷大小、功率因数、补偿容量等方面进行分析,提出按照OT侧负荷大小分阶段控制OT侧负荷功率因数的控制策略,即在OT侧负荷较低时,通过控制OT侧功率因数,吸收一部分由线路充电功率产生的无功功率。通过计算,验证了该策略的可行性和经济性。The 220 kV switching station and Guoao double circuit lines owned by Inner Mongolia International Cooperation Co.,Ltd. assume the Mongolian Oyu Tolgoi （OT） power transmission project tasks. Calculate power flow for Guoao double-circuit lines on a variety of operating modes to analyze power supply capacity of Guoao double circuit lines under different operating voltages and loads. For Guohe switching station′ s low operating power factor under condition of low load on the OT side, analyzed from the grid voltage, OT side load size, power factor, compensation capacity, etc., according to size of load on OT side. Proposed phased control strategy to control load power factor of OT side, that was, when the lower load on OT side, by controlling the power factor of OT side, absorbed partial reactive power produced by line charging power. By calculation, verified the feasibility and economy of the strategy.

关 键 词：电力系统 无功功率补偿 控制策略 供电能力 功率因数 潮流计算 

分 类 号：TM761.1[电气工程—电力系统及自动化]