摘要
电磁阻尼器气隙磁场的磁感应强度是影响阻尼力矩大小的重要因素。基于有限元电磁场分析软件MagNet建立三维仿真模型,在0～5 000 r/min转速范围内进行三维瞬态运动仿真,通过改变磁钢材料和磁极对数,研究了气隙磁通密度变化对力矩特性的影响。仿真获知电磁阻尼器阻尼力矩与气隙磁密基波幅值的平方成正比关系。
The air gap flux density is an important factor in affecting damping torque. Three-dimensional models were built based on MagNet of Infolytic corporation. The 3D transient simulation with motion was analyzed in the 0 - 5 000 r/ min speed. The effects of structure parameters of stator such as magnet material, magnetic pole-pairs on the torque-speed characteristic were studied. The analysis results show that damping torque is proportional to the square of the amplitude of the fundamental component of the air gap flux density.
出处
《微特电机》
北大核心
2010年第7期22-24,34,共4页
Small & Special Electrical Machines
关键词
电磁阻尼器
气隙磁通密度
三维仿真
力矩特性
electromagnetic damper
air gap flux density
3 D simulation
torque-speed characteristic
