Power Properties of Four-Wire Systems at Nonsinusoidal Supply Voltage

Powers of three-phase aggregates of single-phase static linear loads supplied with a nonsinusoidal voltage are the subject of this paper. It is demonstrated in this paper that the supply current of such systems with a nonsinusoidal voltage can be decomposed into six mutually orthogonal components as...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on power delivery Vol. 31; no. 2; pp. 513 - 521
Main Authors Czarnecki, Leszek S., Haley, Paul M.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Aggregates
Currents' Physical Components (CPC)
Decomposition
Electric potential
Frequency-domain analysis
Harmonic analysis
Harmonics
Indexes
Mathematical analysis
power definitions
Power factor
Power system harmonics
power theory
Terminals
Tin
Traction motors
unbalanced systems
Voltage
Online AccessGet full text

Cover

More Information
Summary:Powers of three-phase aggregates of single-phase static linear loads supplied with a nonsinusoidal voltage are the subject of this paper. It is demonstrated in this paper that the supply current of such systems with a nonsinusoidal voltage can be decomposed into six mutually orthogonal components associated with distinctive physical phenomena in the load, two of which do not exist at a sinusoidal voltage. Such decomposition enables evaluation of contribution of these phenomena to the supply-current rms value increase and the power factor decline. A power equation and definitions of powers in such systems in the presence of voltage harmonics are proposed. This paper shows that all powers can be expressed in terms of load parameters, which can be identified by a measurement at the load terminals.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2015.2463253