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Inverter Control Strategy for Voltage Unbalance Mitigation
2021 1st International Conference on Power Electronics and Energy (ICPEE), 2021Incessant increase in the demand for electrical power has led to the expansion of the grid; hence, augmenting the usage of energy sources. Considering the numerous downsides of conventional energy sources, the power industry has started looking towards Renewable Sources of Energy (RSE) for power production since the last few years.
Nada Ali, Deepak Kumar
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2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA), 2010
In this paper, an analysis of the complex voltage unbalance factor (CVUF) in three-phase lines is offered, in order to orientate future experiments in the study of the effects of voltage unbalance. The geometrical loci for constant magnitudes of the CVUF are presented, considering that the angles of the voltages are constant, and considering that the ...
A. L. Ferreira Filho +3 more
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In this paper, an analysis of the complex voltage unbalance factor (CVUF) in three-phase lines is offered, in order to orientate future experiments in the study of the effects of voltage unbalance. The geometrical loci for constant magnitudes of the CVUF are presented, considering that the angles of the voltages are constant, and considering that the ...
A. L. Ferreira Filho +3 more
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Voltage unbalance on rural systems
Power Engineering Journal, 1987Unequal voltages or voltage unbalance on rural systems has been a known phenomenon for some time. This article discusses the causes and effects of voltage unbalance and gives a practical solution to the ...
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Type detection of voltage sags through voltage unbalance factor
2012 IEEE 15th International Conference on Harmonics and Quality of Power, 2012This paper presents a new method to characterize and detect the type of voltage sag through complex voltage unbalance factor (CVUF). Different types of voltage dip due to unbalance faults in power system are evaluated in term of CVUF and an attempt is made to characterize and detect the types of dip through this factor.
Padmanabh Thakur +2 more
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Effect of supply-voltage unbalance on voltage-source inverter
3rd IET International Conference on Power Electronics, Machines and Drives (PEMD 2006), 2006Properties of the control method for the compensation of unbalanced voltage supply that eliminates pulsating current in the DC bus of a voltage source inverter are analyzed. These pulsations can have negative effects on operating properties of the drive as well as on the quality of power supply in the electrical vicinity of the inverter.
M. Chomat, L. Schreier, J. Bendl
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Voltage unbalance in the multicell converter topology
IEEE AFRICON. 6th Africon Conference in Africa,, 2003The multicell converter topology is said to possess a natural voltage balancing property. This paper models a 2-cell multicell converter. The switching and balancing properties of this converter is mathematically analyzed and presented. The balancing property of this converter is also proven mathematically from the presented properties and conditions ...
R. Wilkinson +2 more
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Voltage disturbances, waveform distortion and unbalance
IEE Colloquium on Issues in Power Quality, 1995This paper discusses voltage disturbances and their affect on sensitive-loads. The paper is not a comprehensive discussion but it details some of the troublesome aspects that have come to light during the past few years. Methods of minimising the problems caused by distortion are also discussed.
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Some Observations on Definitions of Voltage Unbalance
2007 39th North American Power Symposium, 2007In this paper an analysis of five different definitions of voltage unbalance developed by various power communities (CIGRE, NEMA, IEEE, and IEC) is presented, in order to understand their performance and difference among them. The purpose of this work is to analyze and quantify the voltage unbalance, so that these results may become useful to minimize ...
Asheesh K. Singh, G. K. Singh, R. Mitra
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Comparison of voltage unbalance factor by line and phase voltage
2005 International Conference on Electrical Machines and Systems, 2005Most of the loads in industrial power distribution systems are balanced and connected to three power systems. However, voltage unbalance is generated at the user's 3-phase 4-wire distribution systems with single & three phase. Voltage unbalance is mainly affected by load system rather than power system. Unbalanced voltage will draws a highly unbalanced
null Jong-Gyeum Kim +3 more
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Transpositions and unbalance of high-voltage lines
Electrical Engineering, 1952UNTIL ABOUT 20 years ago, transmission engineers felt that transpositions at fairly close intervals were a necessity on high-voltage lines in order to co-ordinate communication and power systems. However, in many large high-voltage systems, the number of transposition structures has been reduced greatly and the matter of co-ordination has not produced ...
E. T. B. Gross, A. H. Weston
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