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| A Controllable Reactor for Reactive Power Compensation of Electrified Railways |
| Zhang Yu1, Chen Qiaofu2, Li Jianghong1, Wang Jian1, Tan Juan1 |
| 1. Technology Center of Zhuzhou CSR Times Electric Co. Ltd. Zhuzhou 412001 China 2. Huazhong University of Science and Technology Wuhan 430074 China |
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Abstract A novel controllable reactor is proposed to regulate reactive power of traction substations automatically according to dynamic loading by paralleled with fixed capacitors. This controllable reactor which has multiple second windings connected with anti-parallel thyristors and voltage-source inverter (VSI) respectively, can obtain reactance varying in a wide range continuously by step-switching the thyristors and controlling VSI current, so that implement reactive power adjustment. Simulating and experimental results validate the advantages of the presented reactor such as fast response speed, high compensating precision and low harmonic output et al.
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Received: 29 June 2010
Published: 07 March 2014
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2011, Vol. 26 
