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http://dx.doi.org/10.5370/KIEE.2017.66.3.587

Comparative Analysis of Voltage Unbalance Factor on the use of Linear and Non-linear loads in Three-phase Four-wire Low Voltage Distribution Line  

Kim, Jong-Gyeum (Dept. of Electrical Engineering, Gangneung-wonju National University)
Kim, Ji-Myeong (Dept. of Electrical Engineering, Gangneung-wonju National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.66, no.3, 2017 , pp. 587-592 More about this Journal
Abstract
In the three-phase four-wire low-voltage power distribution equipment, single-phase and three-phase load have been used mainly mixed. Also linear and nonlinear loads have been used together in the same conditions. In a three-phase four-wire distribution line, the current distribution of three-phase linear load is almost constant in each phase during driving or stopping, but the single-phase load is different from each other for each phase in accordance with the operation and stop. So that the voltage unbalance is caused by the current difference of each phase. In the three-phase four-wire distribution system, non-linear load is used with linear load. The presence of single-phase nonlinear loads can produce an increase in harmonic currents in three-phase and neutral line. It can also cause voltage unbalance. In the present study, we analyzed for the voltage unbalance fluctuations by the operation pattern of the single and three-phase linear and non-linear load in three-phase four-wire low voltage distribution system.
Keywords
Harmonics; Linear load; Non linear load; Three-phase four-wire; Voltage unbalance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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