模块化无谐波可控硅控制电抗器的研究.pdf

31 12 Vol. 31 No. 12 ∀ 52 ∀ 2005 12 igh Voltage Engineering Dec. 2005 1 1 1 1 2 尹忠东, 张建华 , 肖湘宁, 支丽欣, 檀跃亭 ( 1 华北电力大学电力系统保护与动态安全监控 育部重点实验室, 北京102206; 2 华北电网廊坊供电公司,廊坊065000) : TCR Y/Y/ , , TCR , , TCR ,, ,, EMT DC/ PSCAD , : ; ; : T M554 : A :2005) Study on Harmonic Free Module Based Thyristor Controlled Reactor Structure 1 1 1 1 2 YIN Zhongdong , Z ANG Jianhua , XIAO Xiangning , Z I Lixin , TAN Yueting ( 1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control (North China Electric Power University) , Ministry of Education 102206, China; 2. Langfang Power Supply Corporation, North China Power Grid 065000, China) Abstract: This paper puts forward a novel topology of controllable reactor, the structure is based on many small ca pacity thyristors controlled reactor ( TCR) modules and a Y/ Y/ threewindings transformer connecting to system. The V and LV side of transformer adopts duplex winding structure and each has multi bank TCRmodules in delta connection. In this topology, the harmonic current injected into the power system is very small. It not only posses ses all the functions atraditional TCR has, but also has many other merits such as occupying small floor space, gen erating little loss, easy implementation of control and protection scheme, and high reliability etc. A 500 kvar indus trial prototype is under construction in Langfang, ebei province of P.R. China. Digital simulation based on EMT DC/ PSCAD is carried out to verify the perfect harmonics characteristics of to