摘要
针对某矿老副井提升机电控系统采用TKD调速方式而存在能耗大、故障点多、可靠性差等问题,提出了一种基于PLC的双三电平中压变频器调速系统的改造方案;详细介绍了该系统中高低压配电系统、背靠背双三电平中压变频器、多PLC网络控制系统及上位机监控系统的硬件结构、工作原理及功能。实际应用表明,改造后的系统能耗低,运行稳定、可靠。
In view of problems of high energy consumption, many fault points and bad reliability caused by TKD speed-regulation mode used by electrical control system of hoist of old auxiliary shaft of a Coal Mine, the paper proposed a reform scheme of medium-voltage frequency-conversion speed-regulation system with double three-level based on PLC. It introduced hardware structure, working principle and functions of high-low voltage distribution system, back-to-back medium-voltage frequency converter with double three-level, multi-PLC network control system and upper computer monitoring system. The actual application shows that the reformed system has low energy consumption, stable and reliable running.
出处
《工矿自动化》
北大核心
2012年第10期82-85,共4页
Journal Of Mine Automation
关键词
提升机电控系统
中压变频
变频调速
PLC
矢量控制
electrical control system of hoist, medium-voltage frequency-conversion, frequency-conversion speed-regulation, PLC, vector control
