DocumentCode :
2343448
Title :
Effect of two-level PWM sources on plant power system harmonics
Author :
Hill, Walter A. ; Kapoor, Suresh C.
Author_Institution :
Gen. Electr. Ind. Control Syst., Salem, VA, USA
Volume :
2
fYear :
1998
fDate :
12-15 Oct. 1998
Firstpage :
1300
Abstract :
Even two level PWM sources with low harmonic voltage and current distortion characteristics can affect an industrial plant´s power system in such a way that voltage sensitive electronic equipment is adversely affected. It is unwise to feed PWM sources and sensitive electronic equipment from the same substation transformer. The resulting voltage distortion is time consuming to trouble-shoot and expensive to fix. Additional filtering is needed to stop the unwanted harmonic frequencies that emanate from PWM sources from interfering with the operation of sensitive electronic equipment such as gas burner controls, robots and assembly line sensors typically used in the automotive industry. The paper describes the generation of voltage and current harmonics of two level PWM inverter sources. The level of these harmonics were measured before the application of a passive filter and serve as a guide as to the effectiveness of the passive filter in minimizing the level of voltage and current harmonics.
Keywords :
DC-AC power convertors; PWM invertors; harmonic distortion; industrial power systems; passive filters; power conversion harmonics; power harmonic filters; harmonic current distortion; harmonic voltage distortion; industrial plant power system harmonics; passive power harmonic filter; substation transformer; two-level PWM invertor sources; voltage sensitive electronic equipment; Electrical equipment industry; Electronic equipment; Electronics industry; Harmonic distortion; Low voltage; Passive filters; Power harmonic filters; Power system harmonics; Pulse width modulation; Robotic assembly;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
ISSN :
0197-2618
Print_ISBN :
0-7803-4943-1
Type :
conf
DOI :
10.1109/IAS.1998.730312
Filename :
730312
Link To Document :
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