DocumentCode :
1395299
Title :
PWM drives: voltage-type harmonic sources in power systems
Author :
Smith, K.S. ; Ran, L.
Author_Institution :
Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK
Volume :
145
Issue :
3
fYear :
1998
fDate :
5/1/1998 12:00:00 AM
Firstpage :
293
Lastpage :
299
Abstract :
PWM inverter induction motor drives with capacitive DC links are becoming more common. Using circuit analysis, physical measurement and numerical simulation, the paper investigates the generation of power-system harmonics by the PWM drive. It is shown that its harmonic characteristics differ from other nonlinear power-system loads and the drive can be more accurately represented as a voltage rather than a current type of harmonic source. This has implications for both analytic harmonic evaluation and practical filter design. In the paper, a modulation function model is developed which can be used to assess the impact of a PWM drive on a power system, when only limited design data are available
Keywords :
PWM invertors; induction motor drives; power system harmonics; PWM drives; PWM inverter induction motor drives; capacitive DC links; circuit analysis; filter design; modulation function model; nonlinear power-system loads; numerical simulation; physical measurement; power systems; power-system harmonics generation; voltage-type harmonic sources;
fLanguage :
English
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
Publisher :
iet
ISSN :
1350-2360
Type :
jour
DOI :
10.1049/ip-gtd:19981922
Filename :
685311
Link To Document :
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