Efficient Design of a Two-Stage MPC System for Dielectric Test Stand
Magnetic pulse compression (MPC) system has been used widely over the past decades as a technique for producing short duration, high peak power pulses reliably. Recently this technique has been used at higher and higher repetition rates. As repetition rate increases, losses become increasingly important. Magnetization losses in the MPC cores lead to core heating which degrades switching performance. An efficiency design strategy for a two-stage MPC system is introduced. In the strategy presented here, the total losses are minimized with respect to the individual core gains, and the resulting compression design has a lower overall loss and a better distribution of losses through the system. The gain of the final stage and hence its core volume are reduced. This allows low inductance geometries to be attained more easily, or lower loss/higher volume materials to be used. There is however an increase in the total volume of core material required in the traditional approach whose total core volume is minimized with equal gain obtained in each of the stages. However the traditional approach leads to an imbalance in the distribution of losses between stages, and at high pulse repetition rates the losses in the final stage become excessive. By optimizing the distribution of the compression ratio at each stage, the maximum energy transfer efficiency of the two stage MPC system was 87.6％. This approach can be applied to more than two-stage MPC. With this MPC and IGBT we obtained the MPC output power of 3kW at a repetition rate of 10 kHz.
pulsed power dielectric test stand Magnetic Pulse Compression (MPC) compression gain
Dongdong ZHANG Ping YAN Jue WANG Yuan ZHOU Cheng ZHANG
Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, CHINA Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, CHINA Graduate Sch Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, CHINA Graduate Sch
国际会议
哈尔滨
英文
1034-1037
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）