Title :
Aircraft no-break power transfer revisited
Author :
Breit, Joseph S. ; Doty, James H.
Author_Institution :
Sundstrand Electric Power Syst., Rockford, IL, USA
Abstract :
No break power transfer can be accomplished from ground power to an aircraft or between multiple sources on an aircraft with 400-Hz electrical power using a frequency reference autoparallel unit (FRAPU). The no-break function can also be included in the control functions of the feedback control system of the electrical power generating system. The parameters that are controlled to achieve this successful electric power generator system approach to no-break transfer, allowing the airframe manufacturer and operator to take advantage of this normal operating function for commercial and military mission activities are discussed. The following topics are discussed: desirability of no-break power transfer, optimal no-break power transfer, the reason for minimizing circulating watts and VARs, power flow control, other factors affecting circulating power, synchronization control, and means of no-break transfer
Keywords :
aircraft; military systems; power system control; synchronisation; uninterruptible power supplies; 400 Hz; circulating power minimisation; commercial aircraft; electrical power generating system; feedback control; frequency reference autoparallel unit; military aircraft; military mission; multiple sources; no-break power transfer; power flow control; synchronization control; uninterruptible power supply minimum interruption; Control systems; Feedback control; Frequency; Load flow control; Military aircraft; Power generation; Power system reliability; Pulp manufacturing; Reactive power; Voltage;
Conference_Titel :
Aerospace and Electronics Conference, 1990. NAECON 1990., Proceedings of the IEEE 1990 National
Conference_Location :
Dayton, OH
DOI :
10.1109/NAECON.1990.112806