Abstract
In this paper, to obtain a higher amplitude, higher energy transfer efficiency and better waveform quality of pulse current, a pulsed power supply that has time delay effect of the secondary side and the structure of inductive and capacitive hybrid energy storage is presented. The discharge circuit of power supply is improved and its principles and working processes are firstly analyzed. Besides, simulations and experiments are conducted for verification of the principles. It is found that, under the same experimental conditions, when delay time is 1 ms, the amplitude of pulse current is increased from 2769A to 3185A; and the energy transfer efficiency from the primary to secondary side is improved from 57.75% to 58.2%; the quality of pulse waveform is improved clearly compared with that of traditional discharge circuit. The aforementioned three aspects are compared comprehensively, which proves the feasibility and advantages of the improved discharge circuit. In Addition, the analysis of experimental results reveals the controllability of the proposed pulsed power supply, with which the continuous variation of the amplitude of pulsed current within limits can be realized.
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