摘要详情

ID / 提交时间

10 / 2022-05-19 11:20:56

标题

Topology and Control of Repetitive Pulsed Power Supply with Interleaved Output

关键字

LCC resonant converter,Discontinuous current mode,Repetitive pulsed power supply,Interleaved operation

主题及专题

Power Electronics Technology and Application > Control, modeling, and optimization of power converter

状态

终稿

作者

Zhou He / Huazhong University of Science and Technology

Yongxiu Song / Huazhong University of Science and Technology

Hongfa Ding / Huazhong University of Science and Technology

Dandi Zhang / Huazhong University of Science and Technology;School of Electrical and Electronic Engineering

Ziqi Zhang / Huazhong University of Science and Technology

摘要

In the repetitive-frequency pulsed power application, the high-voltage capacitor is usually used as the terminal energy buffer to reduce the impact of the pulsed loads on the power grid. The output voltage is repeatedly charged to the set value through the capacitor charge power supply (CCPS). However, the capacitor charging process is highly nonlinear. There is a sudden change of the power caused by the disconnection between the CCPS and the output capacitor during the discharge, which seriously affects the waveform quality of the power grid. A new capacitor charging topology with interleaved output is proposed in this paper, which could fully eliminate the sudden change of the output power, and achieve up to twice of the repetitive frequency. With constant power control, the proposed topology renders the pulsed power supply appear like the linear load, which contributes to the unity power factor of the front-end power factor correction stage. The correctness and effectiveness of the proposed scheme are validated through simulation.