基于PMOS型固态功率电子开关的宇航智能配电系统研究

doi:10.16180/j.cnki.issn1007-7820.2020.09.009

Abstract

Abstract:

The NMOS driving and controlling circuit cost lots of hardware resources in the solid-state smart power distribution system based on the NMOS SSPC of manned spacecraft, and is unable to meet the requirements of telemetry information for self-health management of spacecraft energy system. To solve this problem, a new solid-state smart power distribution system which is based on PMOS SSPC is proposed. Compared with the NMOS, the PMOS which is used as a positive switch, has non-isolated driving characteristic and costs less system resource. In addition, PMOS can simplify the hardware circuit design and get more telemetry information at the same time, and solve the contradiction between limited hardware resources and more telemetry parameters requirement. Aiming at bus voltage instability of solid-state distribution system caused by SSPC load short circuit protection, an auxiliary circuit scheme for improving the reliability of solid-state power distribution is proposed in this paper, which prevents the stability of the busbar from the effect caused by load short-circuit protection fault.

Key words: manned spacecraft, smart distribution system, DC distribution system, SSPC, PMOS, self-health management.

CLC Number:

TN710

YI Deying,CHEN Hengzhi,YU Lei,WANG Lintao,WU Yiran. The Research of Smart Space Power Distribution System Base on PMOS Power Switch[J].Electronic Science and Technology, 2020, 33(9): 50-55.

Figures/Tables 7

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The Research of Smart Space Power Distribution System Base on PMOS Power Switch

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