变频器在二次方率负载调速中的运用  

Application of Inverter in Speed Adjustment for Square Law Loads

作　　者：李彦周[1] 郭莹莹[1] 

机构地区：[1]河南省中原大化集团有限责任公司,河南濮阳457002

出　　处：《自动化仪表》2009年第5期51-53,共3页Process Automation Instrumentation

摘　　要：节能问题日益受到重视,变频器的运用是最有效的节能途径之一。介绍了变频器节能原理、参数设定方法和故障解决方案。针对变频器在风机、水泵等二次方率负载运用中不能有效节能的问题,提出了调整转速、合理选择U/f曲线的解决方案。实际应用证明,该控制方法对变频器实现高效节能、可靠性方面起到了重要作用。Energy saving becomes more and more significant day by day, the applications of inverters is one of the most effective way for energy saving. The principle of energy saving for inverter and the settings of parameters as well as the solutions on faults are introduced. Aiming at the difficulty for implementing energy saving for fans, water pumps, etc. , because of their square law load characteristic, the strategy of adjusting rotating speed and reasonably selecting U/f curve is proposed. The practice shows that high efficient energy saving and reliability of inverters can be achieved by the control method.

关 键 词：变频器 二次方率负载 调速装置 V/F调速 节能控制 转矩提升 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]