Title :
Instability in D-C Aircraft Systems
Author :
Bunce, H.B. ; Cunningham, J.C. ; Davidson, W.M.
Author_Institution :
Aviation section, industry engineering department of the Westinghouse Electric Corporation, East Pittsburgh, Pa.
Abstract :
A laboratory and theoretical study was made to determine the causes and methods of combating an unstable oscillatory voltage condition which has been encountered in aircraft d-c electric systems, using types P-1, P-2, and R-1 generators with carbon-pile voltage regulators. The generator characteristics were found to be such that oscillatory instability would not occur without the presence of a voltage regulator which was out of adjustment and which had inadequate damping. A method is given for determining the amount of damping required for stable operation in terms of the generator field time constant and certain regulator characteristics.
Keywords :
Aircraft; Batteries; Character generation; Damping; Equations; Equivalent circuits; Frequency; Particle measurements; Regulators; Voltage;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1945.5059040
