SSSC串补输电线路谐波特性的仿真与分析  

Harmonic Simulation and Analysis for Series Compensated Transmission Lines with SSSC

作　　者：李鹏飞[1] 梁凯 刘桂敏 

机构地区：[1]河南省电力公司,河南郑州450052 [2]河南省柘城供电有限责任公司,河南商丘476200 [3]国电南瑞中德保护控制系统有限公司,江苏南京210061

出　　处：《电力科学与工程》2011年第7期12-16,共5页Electric Power Science and Engineering

摘　　要：重点分析了静态同步串联补偿器(Static Synchronous Series Compensator,SSSC)向系统注入的电压及串补线路保护安装处的测量电压的谐波成分,并研究了SSSC安装位置和注入电压大小不同时其注入电压所产生的谐波对测量电压的影响程度。研究结果表明,SSSC注入电压的主要谐波成分与载波比有关,若载波比为27,则主要含有25次和29次谐波,并且在SSSC注入电压的各种谐波分量中,25次谐波对测量电压的影响最大,特别是当SSSC安装在线路中间时,测量电压的25次谐波含量较大,且随着SSSC注入电压的增大而增大。Injected voltage harmonic of static synchronous series compensator （SSSC） and measured voltage harmonic in relaying point in series compensated line are mainly analyzed. And the influence of injected voltage harmonic on measured voltage when the installed place and injected voltage of SSSC are different is also studied. Anal- ysis results show that the main harmonic included in injected voltage of SSSC is relative to the carrier to noise ratio. When the carrier to noise ratio is chosen as 27, the main harmonic components are the 25th and 29th harmonic. The 25th harmonic has great impacts on the measured voltage. The 25th harmonic included in measured voltage is very high especially when SSSC is installed in the middle of the line, which will be higher when the injected voltage of SSSC increases.

关 键 词：SSSC 注入电压 谐波畸变率 载波比 测量电压 

分 类 号：TM77[电气工程—电力系统及自动化]