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A Hybrid Islanding Detection Method Considering Voltage Unbalance Factor
2020 IEEE International Symposium on Sustainable Energy, Signal Processing and Cyber Security (iSSSC), 2020Islanding Detection in the distributed generation (DG) system is a major function that needs to be addressed. Traditional Islanding Detection methods such as the passive ones have drawbacks in the form of existence of large nondetection zones whereas Active Detection Methods have devastating effects on power quality.
Anwesha Manisha Nayak +2 more
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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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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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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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Estimating the voltage unbalance factor using distribution system state estimation
2010 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT Europe), 2010Unbalance is a damaging and costly phenomenon for both network operators and end users. Network operators are increasingly looking at ways in which they can intelligently monitor their exposure to unbalance and its related problems. This paper presents initial results obtained with a new methodology for estimation of the voltage unbalance factor at any
N. C. Woolley, J. V. Milanovic
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2008 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, 2008
The different unbalance definitions applied to three-phase networks are presented shortly, and the unbalance causes and effects on induction motors and ASD are commented. The behavior of an ASD is analyzed when it is fed by an unbalanced voltage centering the attention on the characteristic and non-characteristic harmonic, rms values, K-derating factor,
C. A. Reineri +2 more
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The different unbalance definitions applied to three-phase networks are presented shortly, and the unbalance causes and effects on induction motors and ASD are commented. The behavior of an ASD is analyzed when it is fed by an unbalanced voltage centering the attention on the characteristic and non-characteristic harmonic, rms values, K-derating factor,
C. A. Reineri +2 more
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A Novel Approach Toward Interpretation and Application of Voltage Unbalance Factor
IEEE Transactions on Industrial Electronics, 2007Voltage unbalance has been interpreted in a number of ways based on the conditions and complexities that are involved. This paper takes the widely used expression of voltage unbalance factor (VUF) and puts forward the various ambiguities that arise due to voltage variation and unbalance when applied to a test case.
Kini, P. Giridhar +2 more
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The Impact Analysis of Various Unbalance Factors on the PCC Voltage Imbalance
2014 IEEE Electrical Power and Energy Conference, 2014Excessive voltage unbalance levels under normal operating conditions has become a power quality problem of concern in many power networks. Most available unbalance study only considers the three-phase three-wire power system and concentrates on the unbalance definitions, standards and effects.
Yuanyuan Sun +3 more
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Optimal online charging of plug-in electric vehicles considering voltage unbalance factor
2017 IEEE Power & Energy Society General Meeting, 2017The worldwide application and grid-to-vehicle charging of plug-in electric vehicles (PEVs) are expected to tremendously grow within the next few years. Uncoordinated PEV charging in low voltage (LV) distribution networks can lead to local grid problems such as overloading of transformers and voltage unbalances.
Nasim Jabalameli +2 more
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IEEE Transactions on Energy Conversion, 2001
Analysis of the steady-state performance of an induction motor connected to unbalanced three-phase voltages is presented. The index of voltage unbalance used in this paper is the complex voltage unbalance factor (CVUF) that consists of the magnitude and the angle.
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Analysis of the steady-state performance of an induction motor connected to unbalanced three-phase voltages is presented. The index of voltage unbalance used in this paper is the complex voltage unbalance factor (CVUF) that consists of the magnitude and the angle.
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