南方电网35kV±200Mvar链式STATCOM现场试运行  

On-site Commissioning of 35kV ±200Mvar Cascade STATCOM in China Southern Power Grid

作　　者：黄伟雄[1] 胡广振[2] 王永源[1] 雷雪 吴丹青 

机构地区：[1]广东电网公司东莞供电局,广东省东莞市523120 [2]辽宁科技大学,辽宁省鞍山市114051 [3]荣信电力电子股份有限公司,辽宁省鞍山市114051

出　　处：《电力系统自动化》2013年第19期122-131,共10页Automation of Electric Power Systems

基　　金：国家科技支撑计划资助项目(2007BAA10B02)~~

摘　　要：介绍了南方电网35kV±200Mvar链式静止同步补偿器(STATCOM)的现场测试与试运行,重点对启停试验、运行试验、动态特性试验、双套协调控制试验、运行范围和热运行试验、冗余试验中的一些技术问题进行了讨论。现场试验表明:STATCOM启停、紧急停机、定无功和定电压控制、双套协调控制等符合设计要求,运行稳定;阶越增减20Mvar时,STATCOM能在35ms内完成输出调节;投切电容器或电抗器时,STATCOM能在20ms内完成调节,过渡平稳,无冲击;阀组单元故障模拟试验的闭锁、旁路、重启和跳闸保护符合设计要求。试验结果也表明兼顾500kV和220kV母线电压的双目标优化控制策略的STATCOM直流侧电压平衡问题、输出电流谐波以及节能运行仍需深入研究。The on-site test and the commissioning of 35 kV ±200 Mvar cascade static synchronous compensator （STATCOM） in China Southern power grid are introduced. The technical matters such as： start-up and stop test, operation test, dynamic characteristic test, two-set coordinated controlling test, operating range and hot operation test, and redundance test are discussed. The on-site test results show that： STATCOM start-up and stop, the emergency stop, the control with constant var output and constant voltage, and coordinated controlling of two sets, etc. meet the design requirements, and the operation is stable; STATCOM can complete the output regulation within 35 ms under ± 20 Mvar step change; when capacitor or reactor is switched on or off, STATCOM can complete the output regulation within 20 ms with a smooth transition without shock. The valve unit fault simulating test shows that the lock, the bypass, the restart and the tripping protection meet the design requirements. The test results also show that the DC voltage balance problem of STATCOM with considering the double objective optimization control strategy of 500 kV and 220 kV bus voltage, the output current harmonics and the energy-saving operation are still need to be studied further.

关 键 词：静止同步补偿器 链式结构 现场测试 试运行 动态特性 

分 类 号：TM761.1[电气工程—电力系统及自动化]