Fundamental-frequency components in single-phase motors with SCR Voltage Controllers

Author

Baghzouz, Y.

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Nevada, Las Vegas, NV

fYear

2008

fDate

Sept. 28 2008-Oct. 1 2008

Firstpage

1

Lastpage

5

Abstract

This paper describes how to extract the fundamental-frequency components from the voltage and current waveforms in a split-phase induction motors that is fed through a static voltage controller. These components are derived not from conducting a fast Fourier transform, but rather from few phase angles that are easily provided by zero-crossing and peak detectors. It is shown that knowledge of these components is useful when attempting to optimize load efficiency, and when assessing the power loss due to harmonic distortion. The analysis in this paper is partially validated by laboratory tests on a 1/3 hp split-phase motor.

Keywords

fractional-horsepower motors; harmonic distortion; induction motors; machine control; peak detectors; voltage regulators; SCR voltage controllers; current waveforms; fundamental-frequency components; harmonic distortion; load efficiency optimisation; peak detectors; power 0.33 hp; power loss; single-phase motors; split-phase induction motors; static voltage controller; voltage waveforms; zero-crossing; AC motors; Detectors; Distortion measurement; Frequency; Induction motors; Laboratories; Testing; Thyristors; Voltage control; Voltage measurement; motor efficiency; single-phase induction motors; static AC voltage controllers; waveform distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2008. ICHQP 2008. 13th International Conference on

Conference_Location

Wollongong, NSW

Print_ISBN

978-1-4244-1771-1

Electronic_ISBN

978-1-4244-1770-4

Type

conf

DOI

10.1109/ICHQP.2008.4668790

Filename

4668790