The Application of Soft-Switching Choppers in Maglev Trains

The maglev chopper is a very important part in the maglev train technology. This paper briefly analyses the working principle of a kind of two-quadrant zero-transition soft-switching maglev chopper, discussing the choosing of the key parameters, also with the experimental study on the choosing of the switching-on time, the experimental results indicate that, if you choose the switching-on time correctly, the pulse spike and ripple wave at the switching-on time is decreased, the resonance degree is subdued, and the efficiency is improved.