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Characteristics Analysis of Voltage Sag, Voltage Swell and Instability Voltage in Multi-grounded Four-Wire Power Distribution Systems

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3 Author(s)
Moshtagh, J. ; Univ. of Kurdistan, Sanandaj, Iran ; Souraki, H.P. ; Jalili, P.

In North America, Most power distribution systems employ a four-wire multi-grounded neutral (MGN) design. This paper has explained the inherent characteristics of multi-grounded three-phase four-wire distribution systems under unbalanced situations. As a result, the mechanism of voltage swell and voltage sag in MGN feeders becomes difficult to understand. The simulation tool that has been used in this paper is MATLAB under Windows software. In this paper the equivalent model of a full-scale multi-grounded distribution system implemented by MATLAB is introduced. The results are expected to help utility engineers to understand the impact of MGN on distribution system operations.

Published in:

Computer and Electrical Engineering, 2009. ICCEE '09. Second International Conference on  (Volume:2 )

Date of Conference:

28-30 Dec. 2009