
140CPS21100
140CPS21100
140CPS21100
140CPS21100
什么是变频器的转矩提升,大家一直对这个问题都很困扰,下面本文就来解释下变频器的转矩提升现象。
变频器工作在低频区域时,电动机的激磁电压降低,出现了欠激磁。为了要补偿电动机的欠激磁,几乎所有的变频器都设置了自动转短提升一功能,在电动机低速运行时使转矩增强(U/f特性增强)。自动转矩提升包括二次方递减转矩负载、比例转矩负载和恒转矩负载等待性,无论是哪一种负载特性,若转矩提升值过大,低速区域内会发生过激状态,电动机可能会发热。〖厦门泰尼电气有限公司〗
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