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Power management of multi-hundred kilowatt spacecraft power systems

D. K. Decker, G. W. Fleck, James R. Graves

Abstract

A NASA-sponsored study of space power distribution system technology is in progress to develop an Autonomously Managed Power System (AMPS) for large space power platforms. The conceptual design of a 250 kW photovoltaic power system, including the power management subsystem (PMS), is presented. A PMS concept is derived based on the need to accommodate the increased complexity of a utility-type power system, and to minimize Shuttle resupply and ground station operational costs. The main PMS functions are discussed along with the control strategies of the autonomously managed power system.

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Available abstract

Key concepts: Spacecraft, Photovoltaic system, Power (physics), Electric power system, Power management, Engineering, Space Shuttle, Computer science