基于DSP的矿井下电网漏电保护配置方法的研究

Study on Electric Leakage Protection Device of Electric Grid in Underground Mine Based on DSP

采用数字信号处理器(DSP)作为保护装置的控制核心,设计了基于DSP的井下供电网漏电保护装置,该漏电保护装置重点解决了井下电网总馈电开关、分支馈电开关的漏电保护问题,针对漏电位置的不同,分别配置了附加直流电源型漏电保护、电流型漏电保护、功率方向型漏电保护。实验证明该漏电保护装置反应灵敏、运行可靠。

The Digital Signal Processors（DSP） as the control key of the protection device is applied to design the electric leakage protection system of the electric grid in coal mine based on the DSP.The protection device lays special stress on solving the electric leakage protection of the main feeder switch and the branch feeder switch.Because of the different electric leakage places,the electric leakage protection of additional DC power type,current type and power directional mode is distributed.The leakage protection device would have reaction sensitive and reliable operation.