Abstract In order to enhance dynamic performance features of the grid-side converters of CRH EMUs traction control system in China, the operating principle and mathematic model of the grid-side converter are firstly analyzed. Secondly, instantaneous current control and DQ current decoupling control schemes are illustrated and compared, especially the comparison of dynamic performance against load variation. Meanwhile, an optimal hybrid control scheme is proposed with both advantages of these schemes. Finally, these three schemes are tested and compared in computer simulation and hardware in loop experimental platform. Simulation and experimental results show that the dynamic performance of DC-link voltage of the hybrid control scheme is better than that of either instantaneous current control or DQ current decoupling control scheme.
Zhang Jie,Song Wensheng,Wang Shunliang等. An Optimal Control Method of Grid-Side Converters of EMUs for Improving Dynamic Response[J]. Transactions of China Electrotechnical Society, 2015, 30(18): 52-60.
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2015, Vol. 30 
