摘要
建立了逆变器—电动机数学模型,开发了"逆变器—电动机—载荷"系统的动态特性仿真软件,实现了对逆变供电条件下高次谐波特性的定量仿真。利用该软件对所设计的不同绕组节距、型式和不同转子槽形的电主轴电动机方案进行了比较研究,定量分析了设计参数对逆变供电条件下电动机实际运行性能特别是高次谐波损耗及高次谐波振动特性的影响,在对比研究的基础上确定了优化的异步电主轴电动机设计方案,通过实际设计案例证实了所提出的设计方法的有效性。
A mathematical model including a motor and an inverter is established. Simulation software is developed for calculating the dynamic characteristics of a system constituted by an inverter, a motor and loads. The quantitative simulation of high-order harmonic characteristics of the system with inverter supply is carried out. The developed software is also used to study different design solutions of a motorized spindle motor, which involve different winding pitch, different winding type and different rotor slot shape comparatively. The effect of design parameters on the operating performance of an induction motor with inverter supply is analyzed, especially for losses and vibration behavior caused by high-order harmonic currents. On the basis of research on different design solutions, the optimized design solution of an inverter motor used for an asynchronous motorized spindle is determined. An approach to realizing the precise design of an inverter motor used for high-speed machine tool motorized spindles is provided, which is proved to be valid by actual design examples.
出处
《制造技术与机床》
CSCD
北大核心
2009年第4期31-36,共6页
Manufacturing Technology & Machine Tool
基金
863计划资助项目(2008AA04Z116)
关键词
电主轴
高速加工
谐波损耗
电动机优化设计
Motorized Spindle
High-speed Machining
Harmonic Losses
Inverter Motor
Optimization Design
