Research of Single Phase Short Fault in One-Generator Infinite Bus Power Systems

Abstract

Electric power industry is related to people's livelihood, economic development, an important foundation for national construction industry. With the deepening of our country comprehensive construction, the demand has increased rapidly, at the same time also have higher requirements for quality of power supply. From the previous electricity use can be gradually increased to cannot accept a power outage, to the power grid voltage waveform, harmonic, frequency and so on each index has a clear requirement, countries have introduced related national standard specification. This aspect shows a gradually increase in the standardization of industrialization in China, on the other hand also puts forward higher demands on distribution power supply departments. One of the goals of the grid is to reduce the failure rate, improve the reliability of power supply. And power grid failure and is the highest percentage of short circuit fault, and the single-phase earth fault and occupy the vast majority of proportion, it is necessary to in-depth analysis of the formation mechanism of single-phase earth fault and damage, so as to find the related protection and remedial measures.