双变频器热备切换应用技术的研究  

Research on Application Technology of Dual Variable-frequency Drives Hot-standby Switching

作　　者：张军梁[1] 王兴[2] 

机构地区：[1]中国石油化工股份有限公司镇海炼化分公司,浙江宁波315207 [2]杭州电子科技大学,浙江杭州310018

出　　处：《石油化工自动化》2018年第1期35-40,共6页Automation in Petro-chemical Industry

摘　　要：为解决石化行业变频器传动系统的连续性问题,分析了石化行业变频器传动系统实际切换过程中冲击电流的形成机理,参照目前的各种技术现状,提出了利用变频器本身的速度跟踪功能,结合变频器传动系统的内部参数和外部切换时间优化,提出了一种双变频器热备切换的解决方案,通过试验获得了该方案的关键技术数据。结果证明:该方案可以满足石化行业变频器应用场所对连续生产与可靠性的要求。To solve the continuity problem of drive system of the variable-frequency drive （VFD） in petrochemical industry, the formation mechanism of the inrush current during practical switching for the drive system of VFD is investigated. Referring to current actuality of various technologies, a practical dual VFDs hot-standby switching is put forward that applying VFD speed tracking function with combination of its internal parameter and external switching time optimization of VFD system. The key technical data of the scheme is obtained through experiments. The result indicates the scheme can meet the requirements of continuous production and reliability of VFD application in petrochemical industry.

关 键 词：变频器 双机热备 快速切换 参数优化 

分 类 号：TM46[电气工程—电器]