超高压长线在末端恒功率因数下的运行圆图  

Operation Circle Diagram of Ultra-high Voltage Long distance Transmission Line with the Constant Power Factor of Its End

作　　者：成涛 林莉[2] 龙启玉[2] 牟道槐[2] 

机构地区：[1]重庆电力公司沙坪坝供电局,重庆400030 [2]重庆大学电气工程学院,重庆400044

出　　处：《重庆大学学报（自然科学版）》2001年第4期111-113,共3页Journal of Chongqing University

摘　　要：末端恒功率因数运行是超高压长线典型运行状态之一。由于解析式较为复杂 ,难于从中看出运行特征。文中提出用圆图分析这种状态下的运行特性。介绍了圆图的制定方法 ,并用圆图分析了超高压长线末端的功率 -电压特性 ,计算出极限传输点参数。应用表明 ,该方法直观、清晰。Operation of ultra_high voltage long_distance transmission line on condition that the power factor of its end is constant is one of typical operations. Because analytical formular of it is complex, and it’s not easy to get the operation characteristic.A circle diagram method is put forward to analyze the operation characteristics of this case.How to make the circle diagram is introduced.It is used to analyze the power_voltage characteristics of the end of ultra_high voltage long_distance transmission line and calculated the parameters of critical transmission points . This method is proved to be intuitionistic and clear.

关 键 词：运行特性 超高压远距离输电线路 末端恒功率因素 运行圆图 

分 类 号：TM726.1[电气工程—电力系统及自动化] TM732