Developments of Control and Design strategies for Slotless Permanent Magnet Motors using High Energy Density Magnets

使用高能量密度磁体的无槽永磁电机的控制和设计策略的发展

基本信息

批准号：
12650274
负责人：
MATSUI Nobuyuki
金额：
$ 2.37万
依托单位：
Nagoya Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

项目摘要

As one of strategies for saving energy in global environmental conservation, the efficiency improvements of electric motor drive systems have been promoted in home appliances and industrial applications. Among them, Slotless Permanent Magnet Synchronous Motor (slotless PMSM) using recently developed rare-earth magnets with high energy density have been received much attention from a standpoint of effective use of rare-earth magnets. An aim of this project was to develop the optimum design and control strategies for high efficiency slotless PMSM and during research period we had made achievements as follows.1. Considering that winding inductance value is important for designing high efficiency slotless PMSM, we proposed the new optimum design strategy modifying the design strategy of the first prototype. We made the second prototype according to the result of the optimum design using three-dimensional Finite Element Analysis (3D-FEM) and experimentally evaluated the drive performances. As a result, it was confirmed that the second prototype could realize the decrease in carrier loss by 25% compared to the first prototype.2. By using 3D-FEA, we identified the fact that the decrease in the winding inductance and the increase in the winding resistance for an increase in frequency are due to the eddy current loss on the surface of Ne-Fe-B permanent magnets. Based on the above investigation, we proposed a method for the quantitative prediction of the carrier loss at the design stage of slotless PMSM and confirmed the effectiveness of the proposed method by the experiments using the second prototype.

作为节省全球环境保护能源的策略之一，在家用电器和工业应用中促进了电动机驱动系统的效率提高。其中，从有效利用稀土磁铁的有效使用的角度来看，使用最近开发的具有高能量密度的稀土磁铁的无槽永久磁铁同步电动机（无slot pmsm）受到了很大的关注。该项目的目的是为高效率无效率的PMSM制定最佳设计和控制策略，在研究期间，我们取得了成就如下1。考虑到绕组电感值对于设计高效率无效率的PMSM很重要，我们提出了修改第一个原型设计策略的新最佳设计策略。我们使用三维有限元分析（3D-FEM）的最佳设计结果制作了第二个原型，并通过实验评估了驱动性能。结果，已经证实，与第一个原型相比，第二个原型可以意识到载体损失的减少25％。通过使用3D-FEA，我们确定了以下事实：绕组电感的下降以及绕组电阻的增加以增加频率，这是由于NE-FE-B永久磁体表面的涡流损失所致。基于上述研究，我们提出了一种在无sloteless PMSM的设计阶段定量预测载体损失的方法，并通过使用第二个原型的实验证实了该方法的有效性。