基于DSP的井下电网综合保护装置的设计

Study on Comprehensive Protection Device of Underground Electric Grid Based on DSP

采用数字信号处理器(DSP)作为控制核心,设计了基于DSP的井下供电网智能保护装置,该综合保护装置重点解决了井下相敏过电流短路保护、热过载反时限保护、功率方向型漏电保护等长期困扰井下电网可靠性运行的问题,实验证明该综合保护装置反应灵敏、运行可靠。

Taking the Digital Signal Processors（DSP） as the control key,the intelligent protection device of the electric grid in the underground mine based on the DSP is designed.The protection device lays special stress on solving the phase sensitive short circuit protection,thermal overload inverse time protection,directional power leakage protection and other problems that long term plagued grid reliability operation.Experiments show that the protection device is reaction sensitive and reliable operation.