摘要
异步电机具有结构简单,维护方便等优点,其应用领域非常广泛。运用直接相量法建立了三相异步电动机的数学模型,并利用Ansoft语言建立了仿真模型。以一台三相异步电动机为例,仿真了电机发生突然短路后的电机瞬态过程,并给出了定子电流、转矩的瞬态曲线。通过仿真与理论相结合进行分析,得出在突然短路过程中,电机定子电流和转矩波动趋势。
In this paper the transient process and harm of three-phase induction motor suddently short circuit is ana- lyzed and researched. Mathematical models ibr simulating suddently short circuit in three-phase induction motor , us- ing direct phase quantities, are described. Simu- ulaling models are builded by Ansofl software. Using a three-phasc induction motor as prototype, Simulations were performed respectively when the motor circuit is shorted at different time. Aud results about currents, torques are anal- ysed. From the simulate resuh and theoretical analysis we can see the variationg tendency about turret and torque dur- ing shorting.
出处
《北方经贸》
2015年第8期101-103,共3页
Northern Economy and Trade
关键词
三相异步电动机
数学模型
突然短路
three-phase induction motor, mathematical model, Suddendv Short Circuit
