Results 251 to 260 of about 200,323 (312)
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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.
Yaw-Juen Wang
exaly +6 more sources
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.
Yaw-Juen Wang
exaly +6 more sources
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.
Ramesh C Bansal, R S Aithal
exaly +5 more sources
International Review of Electrical Engineering (IREE), 2021
Voltage Unbalance (VU) is one of the most common power quality problems in industrial electrical systems and it is a subject of systematic study. This problem affects the operation and the efficiency of Induction Motors (IMs), which are the loads that demand more energy in the industrial sector with around 68%.
Enrique C. Quispe +4 more
openaire +2 more sources
Voltage Unbalance (VU) is one of the most common power quality problems in industrial electrical systems and it is a subject of systematic study. This problem affects the operation and the efficiency of Induction Motors (IMs), which are the loads that demand more energy in the industrial sector with around 68%.
Enrique C. Quispe +4 more
openaire +2 more sources
Calculation of the Voltage Unbalance Factor for 25kV-50Hz Railway Substations
2022 20th International Conference on Harmonics & Quality of Power (ICHQP), 2022This paper presents a method to determine the voltage unbalance factor for a 25kV/50Hz railway substation taking into account the power drawn by the trains. In order to correctly size a balancing system to be associated with the substation, it is necessary to calculate with precision the voltage unbalance factor.
Flumian, Didier +2 more
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources