Tsinghua-1 Micro-Satellite Power System Architecture and Design

作     者：吴知非 尤政 

作者机构：Space Center Tsinghua University Beijing 100084 China Surrey Space Center University of Surrey Guildford Surrey GU 5XH UK 

基　　金："98 5" Foundation of Tsinghua University 

出 版 物：《Tsinghua Science and Technology》 (清华大学学报（自然科学版（英文版）)

年 卷 期：2001年第6卷第4期

页      码：289-293页

摘      要：The Tsinghua 1 Micro satellite, the first satellite made by Tsinghua University, was launched in 2000. The power system of the Tsinghua 1 Micro satellite is one of the most important subsystems. It provides all the power for the satellite platform and the payloads. The power system design includes the regulation, protection and distribution of a 4×35 W solar array and 7 Ah NiCd batteries. This subsystem essentially offers two buses: an unregulated 14 V bus and a regulated 5 V bus. All distributed power lines to the users are protected by current tripping switches. In addition, some essential loads, such as the tele command system, are supplied through fuses. The Tsinghua 1 Micro satellite power system provides an efficient, flexible, reliable, and cost effective solution for small satellites in low earth orbit. A better maximum power point tracking method has been used to increase reliability margins and to increase the efficiency of the power system. The power system reliability was evaluated using several different tests, such as the power board test, the assembly integrate test (AIT), the electromagnetic compatibility (EMC) test and the thermal vacuum test (TVT).

主 题 词：micro satellite power system solar array battery 

学科分类：080703[080703] 082502[082502] 08[工学] 0807[工学-电子信息类] 0825[工学-环境科学与工程类] 

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