Optimal surplus harmonic energy distribution

Li Li, Dariusz Czarkowski, Jerzy Dzieza

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new optimal programmed PWM technique is described. The voltage total harmonic distortion at the output of an L-C filter connected to a PWM inverter is minimized. The proposed technique can be directly applied to constant frequency, constant amplitude sinusoidal power supplies such as uninterruptible power supplies. Without any hardware changes, the new method allows for more than 20 percent smaller THD than the general programmed PWM method. Other indexes that are functions of surplus harmonics, such as acoustic noise, heat losses, torque and speed ripples, can be optimized using the new method. A new model of nonconstraint optimization is developed for the proposed method. It is shown that this model includes both double-level and triple-level PWM waveforms. An energy conservation principle is applied to the model to prove and explain the optimization possibility. An energy conservation based algorithm for obtaining an optimization starting point is demonstrated. A numerical example of triple-level optimal programmed PWM waveforms for single-phase applications is presented.

Original languageEnglish (US)
Title of host publicationIECON Proceedings (Industrial Electronics Conference)
Editors Anon
PublisherIEEE Comp Soc
Pages786-791
Number of pages6
Volume2
StatePublished - 1998
EventProceedings of the 1998 24th Annual Conference of the IEEE Industrial Electronics Society, IECON. Part 4 (of 4) - Aachen, Ger
Duration: Aug 31 1998Sep 4 1998

Other

OtherProceedings of the 1998 24th Annual Conference of the IEEE Industrial Electronics Society, IECON. Part 4 (of 4)
CityAachen, Ger
Period8/31/989/4/98

Fingerprint

Pulse width modulation
Energy conservation
Uninterruptible power systems
Harmonic distortion
Heat losses
Acoustic noise
Torque
Hardware
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Li, L., Czarkowski, D., & Dzieza, J. (1998). Optimal surplus harmonic energy distribution. In Anon (Ed.), IECON Proceedings (Industrial Electronics Conference) (Vol. 2, pp. 786-791). IEEE Comp Soc.

Optimal surplus harmonic energy distribution. / Li, Li; Czarkowski, Dariusz; Dzieza, Jerzy.

IECON Proceedings (Industrial Electronics Conference). ed. / Anon. Vol. 2 IEEE Comp Soc, 1998. p. 786-791.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Li, L, Czarkowski, D & Dzieza, J 1998, Optimal surplus harmonic energy distribution. in Anon (ed.), IECON Proceedings (Industrial Electronics Conference). vol. 2, IEEE Comp Soc, pp. 786-791, Proceedings of the 1998 24th Annual Conference of the IEEE Industrial Electronics Society, IECON. Part 4 (of 4), Aachen, Ger, 8/31/98.
Li L, Czarkowski D, Dzieza J. Optimal surplus harmonic energy distribution. In Anon, editor, IECON Proceedings (Industrial Electronics Conference). Vol. 2. IEEE Comp Soc. 1998. p. 786-791
Li, Li ; Czarkowski, Dariusz ; Dzieza, Jerzy. / Optimal surplus harmonic energy distribution. IECON Proceedings (Industrial Electronics Conference). editor / Anon. Vol. 2 IEEE Comp Soc, 1998. pp. 786-791
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