矿用供电系统面保护技术研究与实现初稿.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 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  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 action malfunction, preventing grade trip down hole large area power outage, the power supply system to improve coal mine safety, coal mine production to ensure personal safety . Using the CAN-bus field bus communication technology,