Description of the PMAD Systems Test Bed Facility and Data System

Paper #:
  • 929221

Published:
  • 1992-08-03
Citation:
Trase, L., Fong, D., Adkins, V., and Birchenough, A., "Description of the PMAD Systems Test Bed Facility and Data System," SAE Technical Paper 929221, 1992, https://doi.org/10.4271/929221.
Pages:
5
Abstract:
The National Aeronautics and Space Administration (NASA), Lewis Research Center (LeRC) is responsible for the development, fabrication, and assembly of the electric power system (EPS) for the Space Station Freedom (SSF). The Power Management and Distribution (PMAD) Systems Testbed was assembled to support the design and early evaluation of SSF EPS operating concepts. The PMAD Systems Testbed represents a portion of the SSF EPS, containing intelligent switchgear, power conditioning devices, and the EPS Controllers. The PMAD Systems Testbed facility is discussed, including the power sources and loads available. A description of the PMAD Data System (PDS) is presented. The PDS controls the testbed facility hardware, monitors and records the EPS control data bus and external data. The external data includes testbed voltages and currents along with facility temperatures, pressures, and flow rates. Transient data is collected utilizing digital oscilloscopes. The PDS architecture is discussed along with a detailed description of each of the subsystems.
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