| 矿井电网智能化电流保护系统的设计 |
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| 引用本文： | 郑丽君.矿井电网智能化电流保护系统的设计[J].工矿自动化,2009,35(5). |
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| 作者姓名： | 郑丽君 |
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| 作者单位： | 太原理工大学电气与动力工程学院,山西,太原,030024 |
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| 基金项目： | 山西省科技攻关项目(031116) |
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| 摘 要： | 文章分析了矿井电网发生电流故障时的特征,介绍了一种基于PLC的矿井电网智能化电流保护系统的设计,详细阐述了该系统硬件与软件的设计及该系统基于相敏检测的对称电流故障保护方法、基于负序检测的不对称电流故障保护方法和基于幅值检测的过载保护方法的实现。该系统已投入实际应用,实现了矿井电网的智能化电流保护。
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| 关 键 词： | 矿井电网 电流保护 相敏检测 负序检测 幅值检测 |
Design of Intelligent Current Protection System of Mine Power Network |
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| ZHENG Li-jun.Design of Intelligent Current Protection System of Mine Power Network[J].Industry and Automation,2009,35(5). |
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| Authors: | ZHENG Li-jun |
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| Affiliation: | College of Electrical and Power Engineering of Taiyuan University of Technology;Taiyuan 030024;China |
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| Abstract: | The paper analyzed characteristics of current fault of mine power network,introduced a design of intelligent protection system of current of mine power network based on PLC,described hardware and software design of the system,expounded implementation of protection methods such as symmetry current fault protection based on phase-sensitive detection,asymmetrical current fault protection based on negative sequence detection and overload current fault protection based on amplitude detection in details.The syste... |
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| Keywords: | mine power network current protection phase-sensitive detection negative sequence detection amplitude detection |
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