DocumentCode :
3412088
Title :
In quest of experimental support for the increased real and reactive power in the Czarnecki power model under nonsinusoidal waveforms
Author :
Mostafa, Golam
Author_Institution :
Dept. of Electr. & Electron. Eng., Ahsanullah Univ. of Sci. & Technol. (AUST), Dhaka, Bangladesh
fYear :
2013
fDate :
19-21 Dec. 2013
Firstpage :
213
Lastpage :
216
Abstract :
In a sinusoidal system, the interpretations of the power quantities S, P and Q are well established by the relation S2 = p2 + Q2 and the mechanisms for improving power factor by decreasing Q are clearly devised. In case of nonsinusoidal system the relation S2 = p2 + Q2 is not valid and there appeared numerous power theories due to Budeanu, Fryze, Kusters and Moore, Shepherd and Zakikhani, Czarnecki and etc. [1,2]for the analysis of such systems in order to find additional power component(s) that would balance the new power equation and would provide necessary clues for the improvement of power factor (pf) accurate billing for consumed real power (P) and imposing penalty for drawing excessive reactive power (Q) or causing distortions on the wave shapes by connecting nonlinear semiconductor loads. The issue started in 1892 [2] when the German Engineer Steinmetz observed for the first time that in a resistive electric arc welding circuit (Fig. 3) the apparent power S was greater than the real power, P. However, no consensus theory could yet be developed. This paper particularly deals with the Czarnecki Power Model of 1987 (11) to see if there could be found any suitable interpretation of his model in favour of the increased real and reactive power that had entered into his model during his advocacy [3] for the abandonment of the well-accepted power theory S2 = p2 + QB2 + DB2 put forward by Prof C. I. Budeanu in 1927 [4]. The interpretation could be used as an indicator for the overall power management (III) in nonsinusoidal situations. The works are still at academic levels, experiments are going on as per setup of Fig. 6 and the results would be published in due time.
Keywords :
arc welding; power factor; reactive power; Czarnecki power model; Steinmetz; accurate billing; consensus theory; consumed real power; electric arc welding circuit; nonlinear semiconductor loads; nonsinusoidal situations; nonsinusoidal system; nonsinusoidal waveforms; power components; power factor; power management; power quantity; power theory; reactive power; Equations; Firing; Mathematical model; Monitoring; RLC circuits; Reactive power; Welding; CPC Theory; Nonsinusoidal waveforms; active current; apparent power; distortion power; real power;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advances in Electrical Engineering (ICAEE), 2013 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-2463-9
Type :
conf
DOI :
10.1109/ICAEE.2013.6750335
Filename :
6750335
Link To Document :
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