煤炭工程 ›› 2014, Vol. 46 ›› Issue (10): 196-197.doi: 10.11799/ce201410055
• 研究探讨 • 上一篇 下一篇
许丹
收稿日期:
修回日期:
出版日期:
发布日期:
通讯作者:
Received:
Revised:
Online:
Published:
摘要：
针对目前煤矿井下供电系统防越级跳闸方案存在难以满足速动性要求的问题，提出了一种基于交换式以太网的防越级跳闸方案。文章分析了保护系统的工作原理，设计了一套智能联锁装置，通过收发连锁信号对各级保护设置不同的闭锁时间而实现保护的选择性，最后对以太网进行实时性仿真实验，验证了网络的稳定性、可靠性和实时性。该方案可有效地防止越级跳闸事故发生，确保煤矿井下供电系统安全运行。
关键词: 交换式以太网, 煤矿, 越级跳闸, 实时性
Abstract:
In order to solve the problem that schemes of preventing over-grade trip can not satisfy the requirement of speed, this paper proposes a scheme of preventing over-grade trip based on switched Ethernet. This paper analyzes the working principle of the protection system, designed an intelligent interlock device. The selectivity of the protection is achieved by sending and receiving interlock signal setting different blocking time of protection at various levels. Finally, the Ethernet is simulated to validate its stability, reliability and real-time performance. The scheme can effectively prevent the occurrence of over-grade trip, to ensure the safe operation of coal mine power supply system.
Key words: switched Ethernet, coal mine, over-grade trip, real-time
许丹，郭益督. 基于以太网的煤矿井下电网防越级跳闸研究[J]. 煤炭工程, 2014, 46(10): 196-197.
0 / / 推荐
导出引用管理器 EndNote|Reference Manager|ProCite|BibTeX|RefWorks
链接本文: http://www.coale.com.cn/CN/10.11799/ce201410055
http://www.coale.com.cn/CN/Y2014/V46/I10/196
[1] 卢喜山等.煤矿供电系统基于纵联差动保护原理的防越级跳闸技术研究[J].煤矿机械,2011,(4):71-73 [2]王玉梅，马星河等.基于独立分站的煤矿井下高压电网自适应保护系统方案[J].工矿自动化,2009,(10):5-8 [3] 陈奎，张丽，孙常青.煤矿高压防爆开关综合保护新技术[J].电力系统保护与控,2009,(24):137-140 [4]冯建勤，冯巧玲.级联线路的链式过流保护方案研究[J].继电器,2006,80(34):80-83 [5]张根现，马星河，张传书等.井下高压电网防越级跳闸系统研究[J].煤矿机电,2009,(2):56-58 [6] 宫丽宁. 交换式工业以太网的实时性研究[D]. 太原科技大学[J].,2008,:- [7]胡俊.组建实时可靠安全的工业以太网[J].工业控制计算机,2007,16(10):10-12 [8]胡晓娅，朱德森等.基于交换式以太网的网络控制系统仿真平台[J].华中科技大学学报,2008,33(10):89-91
