Development of Design Method of Energy Efficient Machines

为了提高电机的效率，发展了旋转电机分析技术、优化设计方法、高精度磁特性测量技术。对永磁旋转电机的优化技术进行了研究。得到的结果可以总结如下：1。考虑电源旋转和畸变波形的磁场分析方法的发展为了分析由逆变器驱动的旋转电机，提出了考虑旋转和畸变波形的三维有限元法。电机优化设计方法的发展本文研究了旋转机械三维有限元法和Rosenbrock法的优化设计问题。磁特性测量技术的发展通过对波形控制技术的研究和新型二维磁特性测量仪的研制，将用于磁场分析的磁特性测量到高通量密度。永磁旋转机构的优化设计采用三维有限元法和优化方法对永磁旋转机构进行了优化设计。结果表明，该方法可使转矩提高40%。

In order to increase the efficiency of electric machines, the technique for analyzing rotating machines, optimal design method, measuring technique of magnetic characteristics with high accuracy are developed. The optimization technique of permanent-magnet rotating machine is also investigated. The results obtained can be summarized as follows ;1. Development of Method for Analyzing Magnetic Field Considering Rotation and Distorted Waveform of Power SourceIn order to analyze the rotating machine fed by inverter, 3-D finite element method (FEM) which can take account of rotation and distorted waveform is developed.2. Development of Optimal Design Method of Electric MachinesProblems in the optimal design of rotating machines using 3-D FEM and Rosenbrock's method are examined.3. Development of Measuring Technique of Magnetic Characteristics and MeasurementsThe magnetic characteristics which are used in magnetic field analysis are measured up to high flux density by investigating the controlling technique of waveform and by developing the new-type measuring apparatus of 2-D magnetic characteristics.4. Optimal Design of Permanent Magnet Rotating MachineThe permanent rotating machine is optimized using 3-D FEM and optimization method. It is shown that the torque can be increased by 40%.