As the Earth-orbit International Space Station (ISS) grows, it needs more power which is generated by solar panels. For periods in which the planet Earth occults sunlight, energy is stored in the biggest set of batteries ever flown in space. Reliability of power is important in a space station because a failure requires costly launch of replacement components. Even greater importance results when astronauts work in the station. A power failure that causes the astronauts to perish would be a very serious event. The first battery-containing "integrated equipment module" was launched November 30, 2000 and installed on port 6 of the International Space Station. Two more modules will be launched by the United States; to be launched in 2004 is the European Space Agency's "attached COLUMBUS APM laboratory," which will have its own power system. Unexpected battery-related events occurred in the integrated equipment module during its first year-and-a-half in orbit. The problems and their solutions were described in papers presented at the 37/sup th/ Intersociety Energy Conversion Engineering Conference. Since the International Space Station carries more battery cells than any other spacecraft, the in-flight performance data from its battery assembly can be useful to engineers who design power supplies for other spacecraft. We, therefore, summarize the battery development process, the adopted design, and an unexpected in-flight battery degradation and its correction.
International Space Station power storage upgrade planned
IEEE Aerospace and Electronic Systems Magazine ; 18 , 5 ; 32-39
2003-05-01
691988 byte
Article (Journal)
Electronic Resource
English
International Space Station Power Storage Upgrade Planned
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