基于极对数变化的电磁阻尼器力矩特性的研究  

Research on Torque-speed Characteristic Based on Magnetic Polepairs of Changes in Electromagnetic Damper

作　　者：王燕芳[1] 徐文秀[1] 

机构地区：[1]郑州航空工业管理学院机电工程学院,郑州450015

出　　处：《煤矿机械》2012年第9期104-106,共3页Coal Mine Machinery

摘　　要：通过有限元电磁场分析软件MagNet建立电磁阻尼器三维仿真模型,通过静态气隙磁场的磁通密度分析,简化三维瞬态运动仿真模型;对不同磁极对数下的三维模型瞬态运动仿真,重点研究了磁极对数变化对力矩特性的影响。仿真获知电磁阻尼器力矩特性斜率与磁极对数既不成正比关系,也不成反比关系,磁极对数对力矩特性的影响最终体现在气隙磁通密度基波幅值对力矩特性的影响。Three-dimensional models are built based on MagNet of Infolytic corporation. According to simulation results of air gap flux densities analyzed by means of sampling in static field, the 3D transient model has been simplified for no reason for department of simulation model. The effects of magnetic pole-pairs of changes on torque-speed characteristic are researched. The analysis results Show that relationship of torque-speed ratio with magnetic pole is neither directly proportional nor inversely proportional. The substance of torque-speed characteristic affected by magnetic pole-pairs is changes of amplitude of fundamental component of air gap flux density.

关 键 词：气隙磁通密度 三维仿真 磁极对数 力矩特性 

分 类 号：TM351[电气工程—电机]