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| Research on Train Auxiliary Power System Based on PQ Droop Control Inverter Parallel Technology |
| Shen Kun1, 2, Zhang Jing1, Wang Jian2 |
| 1. Hunan University Changsha 410082 China 2. Zhuzhou CSR Times Electric Co., Ltd. Zhuzhou 412001 China |
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Abstract In this paper, the inverter parallel technology is applied in the DC600V train auxiliary power system, which is able to improve its reliability and redundancy. The existing inverter parallel technologies and the train auxiliary power system’s characters such as multi-inverters, long-distance, high reliability and system redundancy, etc. are analyzed. A solution based on PQ (active power and reactive power) droop control inverter parallel technology is proposed for the DC600V train auxiliary power system. Then, in dqo coordinates the PQ droop control algorithm is analyzed. A MATLAB/Simulink emulation model is used for testing the auxiliary inverter parallel system as well as an experimental system with two auxiliary inverters paralleled. Simulation and experimental results verify that the power system still operate normally after load changed or power lost, which reveals that the constructed inverter parallel system can fully qualify the high reliability and system redundancy of train auxiliary power system.
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Received: 06 January 2010
Published: 07 March 2014
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2011, Vol. 26 
