Space High-Voltage Power Module
Wenjie Zhao1*, Yuanyuan Jiang1, Jianchao Wu2, Yonghui Huang1, Yan Zhu1, Junshe An1 and Cheng-an Wan2
1 National Space Science Center, The Chinese Academy of Sciences, Beijing, China, 2 China Aerospace Science
and Technology Corporation, Beijing, China
ABSTRACT
With the rapid development of the world’s aerospace technologies, a high-power
and high-reliability space high-voltage power supply is significantly required by new
generation of applications, including high-power electric propulsion, space welding,
deep space exploration, and space solar power stations. However, it is quite difficult
for space power supplies to directly achieve high-voltage output from the bus, because
of the harshness of the space environment and the performance limitations of existing
aerospace-grade electronic components. This paper proposes a high-voltage power
supply module design for space welding applications, which outputs 1 kV and
200 W when the input is 100 V. This paper also improves the efficiency of the high-
voltage converter with a phase-shifted full-bridge series resonant circuit, then simulates
the optimized power module and the electric field distribution of the high-voltage
circuit board.
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