Double close-loop control for auxiliary inverter unbalanced load based on novel resonant controller

作者：Diao Lijun^*; Chen Jie; Du Huiqing; Wang Lei

来源：Transactions of China Electrotechnical Society, 2013, 28(SUPPL.1): 449-454.

• Auxiliary inverter
• Close-loop control
• Double closed-loop control
• Power supply equipment
• Practical engineering
• Proportional controller
• Resonant controller
• Unbalanced loads

Auxiliary inverter is a very important power supply equipment for the urban rail vehicles, whose loads have characteristics like unbalance, nonlinear, time-varying, etc. To solve the unbalance load problem under complex conditions, this paper presents a voltage and current double closed-loop control method based on novel resonant controller, where the current loop using inductor current proportional controller, and the voltage loop using new resonant controller. Current loop configuration is given, and approximate inductor current feedback method is used for the proportional controller to get the most simple and effective control;voltage loop design method based on the new resonant controller is as well as analyzed, that resonance control parameters are selected according to the bandwidth. Simulation and experimental results show that the proposed method can achieve good unbalanced load control performance has high dynamic response characteristics, and has a high practical engineering reference value.

• 出版日期2013
• 单位北京交通大学