EVALUATION OF POWER FACTOR UNDER LINEAR AND NONLINEAR LOAD CONDITIONS | ||
| ERJ. Engineering Research Journal | ||
| Article 1, Volume 32, Issue 3, July 2009, Pages 255-260 PDF (480.64 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2009.69340 | ||
| Authors | ||
| Mohammed A. Abdulsada; Furat A. Abbas; Fathi R. Abusief | ||
| Electrical Engineering Department, Faculty ofEngineering, Omar Al-Mukhtar University, Tobruk, LIBYA | ||
| Abstract | ||
| The aim ofthis paper is to evaluate the power factor ofthe linear and nonlinear load. The effect of poor power factor on the supply circuit is discussed. The general definitions and equations of power relation are presented. The power factor under linear load condition is derived and discussed. Under nonlinear load, the total power factor is made oftwo components: displacement factor and distortion factor. The distortion factor associated with the harmonics present. The power factor in terms of Fourier series coefficients is evaluated. The power factor correction (PFC) techniques are discussed for linear and nonlinear load. . As case study, the power factor of three linear different loads is calculated. A 3-phase , 6-pulse, AC/DC converter is taken as an example of nonlinear load and the total power factor when feeding R- load and R-L load is evaluated. | ||
| Keywords | ||
| Power factor; displacement factor; distortion factor; linear & nonlinear loads; AC/DC converter; and power factor correction | ||
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