矿用供电系统面保护术的研究与实现.docVIP

论文题目：矿用供电系统面保护技术的研究与实现 专 业：电气工程及其自动化 本 科 生： （签名） 指导教师： （签名） 现代工业的飞速发展，电力、化工、冶金等高耗能行业对煤炭的需求量剧增，煤炭的安全生产面临着巨大的挑战。电力系统作为煤矿生产的重要组成部分，其继电保护性能的好坏直接影响着煤矿的生产效率和安全性。煤矿井下供电系统传统的继电保护故障判断信息比较单一，导致故障动作准确性不足，很容易造成井下越级跳闸，扩大停电面积，对井下安全生产造成极大的危害，传统的煤矿供电系统继电保护已不能满足现代化煤矿的生产需求。 本次研究设计的矿用供电系统面保护系统，各个现场测控单元对系统保护安装处的设备运行信息进行采集，包括设备的运行参数及运行状态，通过全面的信息进行综合故障判断，实现故障保护动作的准确性，减少保护动作误动，防止越级跳闸，减少井下大面积停电，提高煤矿井下供电系统的安全性，确保煤矿井下生产人员的人身安全。利用CAN-bus现场总线通信技术，将现场测控单元所采集的运行参数、运行状态以及供电系统的故障信息上传到上位机，实现上位机对整个供电系统的实时监控。 关键词 :面保护,测控单元,CAN-bus现场总线,上位机 Subject: Research and Implementation of the supply system about area-protection technology in underground coal mines Specialty: Electric Engineering and it’s Automation Name: (Signature) Instructor: (Signature) ABSTRACT With the rapid development of modern industry , electric power, chemical industry, metallurgy industry, high energy-consuming surge in demand for coal , coal production safety faces enormous challenges. Power system as an important component of coal production , the relay performance has a direct impact on mine productivity and safety. The traditional coal mine power system protection fault diagnosis information is relatively simple , resulting in insufficient accuracy of fault movement , it is likely to cause downhole grade trip , expanding blackout area for mine safety production caused great harm , traditional coal power system relay protection can not meet modern coal mine production needs. The study design surface mine power system protection system , each site system protection and control unit for the operation of the equipment installed at the information collection , including equipment operating parameters and operating status information through a comprehensive integrated fault diagnosis, fault protection to achieve accuracy of action to reduce the protective a