Modeling the operation of a medium voltage power gridwith a compensated neutral at single-phase ground fault
Journal Title: Вісник Національного технічного університету "ХПІ". Серія: Проблеми удосконалювання електричних машин і апаратів. Теорія і практика - Year 2018, Vol 32, Issue 1308
Abstract
Introduction. In this article is developed a computational model of medium voltage power grid with three feeder lines in Matlab environment, which allows to simulate the operation of power grid in single phase to ground fault mode. The computational model is based on the theory of symmetrical components method, that allows to imitate appearance of currents zero sequences, which exist in power system in case of single phase ground fault. The imitation modeling of 20 kV compensated power grid in single phase to ground fault mode has carried out, the results of this modeling are shown by corresponding oscillograms, current and voltage dependencies. Accord-ing to the simulation results, the operation of the fault current compensation system has analyzed in single phase to ground fault mode. The proposed computational model can be used in the development of new and modernization of existing medium voltage compensated power grids to evaluate the effectiveness of their operation in single phase to ground fault mode for the most rational choice of appropriate compensation equipment installation and algorithms of its operation.
Authors and Affiliations
Y. Yu. Zorin, O. O. Chepelyuk
Keywords
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- EP ID EP499001
- DOI 10.20998/2079-3944.2018.32.14
- Views 138
- Downloads 0
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