可控串补(TCSC)模式切换控制策略的动模实验研究  

Dynamic simulation research on mode-switching control strategy of TCSC

作　　者：李可军[1] 孙莹[1] 马悦[2] 邹振宇[2] 赵建国[3] 牛林[3] 

机构地区：[1]山东大学电气工程学院,山东济南250061 [2]山东电力工程咨询院有限公司,山东济南250013 [3]国家电网技术学院,山东济南250002

出　　处：《电力系统保护与控制》2010年第20期115-120,共6页Power System Protection and Control

基　　金：国家自然科学基金项目(50977053);山东省科技攻关计划项目(2008GG30001020);教育部留学回国人员科研启动基金([2010]609);山东大学自主创新基金项目~~

摘　　要：基于模块化动模实验平台,提出了一套可控串联补偿(TCSC)模式切换控制策略。动模实验证实了通过简单改变触发角TCSC的模式切换无法实现;分析了电抗器支路不同品质因数对硬件旁路切换的影响,通过串加小电阻的方法改进TCSC主回路接线以有利于模式切换的实现。采用线路电流与晶闸管支路电流同向触发的方法实现由容性运行模式到Bypass的切换。动模实验结果表明,提出的模式切换策略能使切换过程平稳迅速,且动态特性良好。Based on the dynamic simulation device of TCSC,a set of mode-switching control strategy is proposed.The dynamic simulation results show that it is impossible to realize mode-switching of TCSC only by changing firing angles.The influence of different quality factor of reactor branch on the hardware bypass switching is analyzed.The TCSC circuit connection is improved by adding small resistance in serial which can benefit the realization of mode switching.By means of forced synchronization of current in thyristor branch with the line current,the mode switching from capacitive mode to Bypass can be implemented.Experimental results show that the proposed control strategy can make the switching process faster and possess better dynamic performance.

关 键 词：可控串联补偿(TCSC) 动模实验 模式切换 同向触发 

分 类 号：TM761.12[电气工程—电力系统及自动化]