基于FPGA的煤矿井下相敏过流保护器的研究  

Research of Phase Sensitive Overcurrent Protective Device in Underground Coal Based on FPGA

作　　者：杨焱麟[1] 公茂法[1] 张晓明[1] 李保勇[1] 

机构地区：[1]山东科技大学信息与电气工程学院,山东青岛266510

出　　处：《煤矿机械》2010年第3期165-167,共3页Coal Mine Machinery

基　　金：山东科技大学研究生科研创新基金(YCA090211)

摘　　要：简述了煤矿井下微机保护的现状,分析了井下电网过电流的故障特征,提出了鉴于电流幅值检测和功率因数检测的相敏过电流保护,并介绍了基于FPGA的相敏保护器的工作原理及其实现方法。实践证明,该保护系统具备较高的灵敏性、可靠性和速动性,具有广阔的应用前景和实用价值。The paper expounds the status of microprocessor-based protection for grid of underground coal, and analyzes fault characteristics of overcurrent in coal mine. Besides, a type of protection, the phase-sensitive overcurrent protection based on detection of the current and power factor, is suggeSted in this paper. This paper also introduces principle and implementation of the phase-sensitive overcurrent protective device based on FPGA. Practice has proved that this protective system has higher sensitivity, reliability, and mobility. So the protective device has great application value in mining industry.

关 键 词：井下电网 过电流 相敏保护 FPGA 

分 类 号：TM771[电气工程—电力系统及自动化]