| 带并联电抗器补偿的长距离输电线路的功率损耗 |
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| 引用本文： | 顾生杰,;张帆,;田铭兴,;章宝歌.带并联电抗器补偿的长距离输电线路的功率损耗[J].兰州铁道学院学报,2014(4):12-15. |
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| 作者姓名： | 顾生杰 ;张帆 ;田铭兴 ;章宝歌 |
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| 作者单位： | [1]兰州交通大学光电技术与智能控制教育部重点实验室,甘肃兰州730070; [2]兰州交通大学自动化与电气工程学院,甘肃兰州730070; [3]甘肃省电力公司信息通信中心,甘肃兰州730050 |
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| 基金项目： | 国家自然科学基金（51167009,51367010）;甘肃省科技计划项目（1304WCGAl81）;兰州市科技计划项目（2013-4-11）;甘肃省高等学校基本科研业务费专项资金（213052） |
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| 摘 要： | 针对两端带并联电抗器补偿的长距离输电线路的功率损耗问题,以长距离输电线路等效电路与并联电抗器无功补偿容量分析为基础,分析了空载时线路电流电压分布.获得了两端安装并联电抗器条件下,传输功率变化时,不同长度的超高压500kV线路功率损耗变化的数值模拟曲线.分析结果表明:随着传输功率的增大,线路的功率损耗相对值随之增大;两并联电抗器的线路间隔长度增大,线路功率损耗相对值也将有所增加.
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| 关 键 词： | 长输电线路 π型等效电路 并联电抗器 无功补偿 自然功率 功率损耗 |
Power Losses in Long Distance Transmission Line with Shunt Reactor Compensation |
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| Institution: | GU Sheng-jie, ZHANG Fan, TIAN Ming-xing, ZHANG Bao-ge Key Laboratory of Opto-electronic Technology and Intelligent Control of Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China; 2. School of Automation ＆ Elctrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070,China;3. Information Communication Center,Gansu Power Company,Lanzhou 730050,China) |
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| Abstract: | In order to study power losses in long distance transmission line with shunt reactor com-pensation at two ends of the line,the voltage and current distribution at no-load over the line with shunt reactors compensation are analyzed carefully based on long linesπ-type equivalent circuit and the capacity analysis of reactive power compensation.And the numerical results of power loss via the different lines of 500 kV transmission lines arranged at both ends of controllable shunt re-actor are obtained finally when transferring power is changed.The results of simulation show that relative power losses in long distance transmission line increases with the increase in transferring power and the distance between shunt reactors. |
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| Keywords: | long distance transmission line π-type equivalence circuit shunt reactor reactive compensation natural power power losses |
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