基于零序功率方向选择性漏电保护系统的研究

Research on selectivity electric leakage protection system base on null sequence power direction

在分析国内外漏电保护装置现存问题的基础上,提出了一种基于零序功率方向的矿井低压电网选择性漏电保护系统。该系统以DSP处理器为核心,重点讨论该系统的工作原理、硬件结构、软件设计。经现场运行实现了漏电保护的快速性、选择性和准确性。

Base on the analysis on the existing problems of the electric leakage protection systems made in China and overseas, the paper provided a selectivity electric leakage protection system for mine lower voltage electric power network base on null sequence power direction. Taking the DSP processor as the key, the paper mainly discussed the working principle, hardware and software design of the system. The site operations of the system showed the rapidity, selectivity and accuracy of the electric protection.