| 基于PLC的双三电平中压变频调速系统设计 |
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| 引用本文： | 苏长胜.基于PLC的双三电平中压变频调速系统设计[J].工矿自动化,2012,38(10):82-85. |
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| 作者姓名： | 苏长胜 |
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| 作者单位： | 黑龙江龙煤矿业控股集团有限责任公司鹤岗分公司鸟山煤矿筹备处,黑龙江鹤岗,154100 |
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| 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。
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| 关 键 词： | 提升机电控系统 中压变频 变频调速 PLC 矢量控制 |
Design of Medium-voltage Frequency-conversion Speed-regulation System with Double Three-level Based on PLC |
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| SU Chang-sheng.Design of Medium-voltage Frequency-conversion Speed-regulation System with Double Three-level Based on PLC[J].Industry and Automation,2012,38(10):82-85. |
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| Authors: | SU Chang-sheng |
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| Affiliation: | SU Chang-sheng(Preparatory Office of Niaoshan Coal Mine of Hegang Branch of Heilongjiang Longmay Mining Holding Group Co.,Ltd.,Hegang 154100,China) |
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| Abstract: | 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. |
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| Keywords: | electrical control system of hoist medium-voltage frequency-conversion frequency-conversion speed-regulation PLC vector control |
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