Title :
Voltage distortion of rotary UPS and standby engine generator sets
Author :
Kusko, A. ; Peeran, S.M.
Author_Institution :
Failure Anal. Associates Inc., Westborough, MA, USA
Abstract :
Methods for calculating the voltage distortion produced by nonlinear loads, and design concepts for reducing the distortion are described. The impact of reducing saliency in the rotor construction and in the damper windings on the impedance of the generator to harmonic currents is analyzed. It is shown that generator voltage distortion under nonlinear loads can be controlled by either one of two methods, overrating the generator to make the nonlinear load a smaller percentage of the generator rating, or reducing the internal impedance of the generator to the harmonics of the nonlinear load current.<>
Keywords :
electric distortion; standby generators; uninterruptible power supplies; damper windings; internal impedance; nonlinear loads; overrating; rotary UPS; rotor construction; standby engine generator sets; uninterruptible power supplies; voltage distortion; Damping; Engines; Harmonic analysis; Harmonic distortion; Impedance; Rotors; Shock absorbers; Standby generators; Uninterruptible power systems; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152423
