Generalized harmonic loss-factor as a novel important quality index of PWM techniques

Author

Halász, S. ; Huu, B.T.

Author_Institution

Dept. of Electr. Machines & Drives, Budapest Tech. Univ., Hungary

Volume

2

fYear

1997

fDate

3-6 Aug 1997

Firstpage

787

Abstract

Different carrier-based and loss-optimized PWM methods of two- and three-level inverters are examined and compared from the viewpoint of the motor harmonic losses. For the presently used commutation frequencies these losses with a good accuracy are determined from the generalized loss-factors, which are expressed by analytical equations and usually independent of the commutation frequency of the inverter. The generalized loss-factors of bipolar, dipolar and unipolar PWM techniques with three and two phase commutations are compared in detail

Keywords

AC motor drives; PWM invertors; commutation; harmonic analysis; losses; power system harmonics; PWM techniques; analytical equations; bipolar PWM techniques; carrier-based PWM methods; commutation frequencies; dipolar PWM techniques; harmonic loss-factor; loss-optimized PWM methods; motor harmonic losses; quality index; three phase commutations; three-level inverters; two phase commutations; two-level inverters; unipolar PWM techniques; AC motors; Commutation; Equations; Frequency; Harmonic analysis; Influenza; Pulse width modulation; Pulse width modulation inverters; Shape; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagaoka 1997., Proceedings of the

Conference_Location

Nagaoka

Print_ISBN

0-7803-3823-5

Type

conf

DOI

10.1109/PCCON.1997.638319

Filename

638319