The Design of the Auxiliary Power Module for Magnetically Compressed Plasma Fusion

In order to improve the operating parameters of plasma in Tokamak, operating at high density, high temperature and high beta, it has proved that the magnetically compressed plasma is one of the effective methods. In this paper, the topology of high frequency and high power auxiliary power supply system supplied by MC coil in EAST vacuum chamber is presented. The power supply system is composed of several power modules in parallel, which is realized by a series resonant full bridge circuit, and is controlled by current closed loop proportional integral control pulse width modulation. In addition, the model of the converter is simulated and analyzed, and the performance and control of the converter are verified by the test prototype. The efficiency of the power supply is effectively improved by the zeroswitching technology.