Technical Paper
Application of a Fault Tolerant Electrical Power System
1990-09-01
901803
The Fault Tolerant Electrical Power System (FTEPS) Air Force program conducted by Boeing concluded that future electrical systems can be designed to meet the stringent requirements of fly-by-wire and power-by-wire equipment on aircraft. A power system architecture was designed and implemented in a ground demonstrator that provides electrical power to flight-critical loads after three major system faults, provides electrical power to mission-critical loads after two major system faults, and provides electrical power to non-flight/mission critical loads after one major system fault. In addition, the system provides electrical power to the load buses that is 100 times more reliable than the typical loads on those buses. The FTEPS design is based on the ability of the system to manage the system loads by optimizing the distribution of the available source capacity.