Development of electric vehicle that uses soft magnetic composite core and does not use permanent magnet

开发使用软磁复合铁芯而不使用永磁体的电动汽车

• 批准号: 22560261
• 负责人: ISHIKAWA Takeo
• 金额: $ 2.91万
• 依托单位: Gunma University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560261/
• 关键词: 電気自動車; スイッチトレラクタンスモータ; トポロジー最適化; 脱レアアース

A novel topology optimization method has been proposed for the material distribution of electrical motors using the Genetic algorithm combined with the cluster of material and the cleaning procedure. The cluster of several kinds of material is taken into account not only to form the group of iron and the group of air but also to form the group of the r-oriented, x-oriented and y-oriented magnets. Consideration of air, iron and the r-oriented magnet gives a surface permanent magnet type rotor, and consideration of air, iron and the x-oriented and y-oriented magnets gives an interior permanent magnet type rotor. As a result, it was found that permanent magnets are very useful to produce a large torque.In order to develop a motor for electric vehicle without using permanent magnets, a switched reluctance motor with 18 stator slots and 12 rotor slots is designed. It is designed to produce a large average torque more than 400N・m by using the experimental design method coupled with 2-D finite element analysis, where the conventional shape of SRM is chosen as the initial shape to be designed. Eight parameters are chosen as design variables, which define the whole shape of stator teeth and rotor teeth with the assumption of a constant motor volume and a constant air-gap length. An algorithm for an asymmetric bridge converter coupled with finite element method is developed, and then the torque speed characteristics are investigated. The designed SRM has been manufactured.Moreover, a method for generating a music scale from a brushless DC motor with surface permanent magnets has been proposed by introducing a d-axis current with a desired frequency. The proposed method is theoretically verifies by analyzing the vibration emitted from the brushless DC motor. The proposed idea could be applicable to systems emitting a loud acoustic noise from HVs or EVs.

利用遗传算法结合材料聚类和清洁程序，提出了一种用于电机材料分布的新型拓扑优化方法。多种材料的簇不仅被考虑形成铁组和空气组，而且还被考虑形成r取向、x取向和y取向磁体组。考虑空气、铁和r取向磁体给出表面永磁体型转子，考虑空气、铁和x取向和y取向磁体给出内部永磁体型转子。结果发现，永磁体对于产生大扭矩非常有用。为了开发一种不使用永磁体的电动汽车电机，设计了一种具有18个定子槽和12个转子槽的开关磁阻电机。采用实验设计方法结合二维有限元分析，选择SRM的常规形状作为初始形状，设计产生超过400N·m的大平均扭矩。选择八个参数作为设计变量，在电机体积恒定和气隙长度恒定的假设下定义定子齿和转子齿的整体形状。开发了一种与有限元法耦合的非对称桥式变换器的算法，然后研究了扭矩速度特性。设计的SRM已经制造出来。此外，还提出了一种通过引入具有所需频率的d轴电流，从具有表面永磁体的无刷直流电机产生音阶的方法。通过分析无刷直流电机发出的振动，对所提出的方法进行了理论上的验证。所提出的想法可适用于高压汽车或电动汽车发出大声噪音的系统。

项目成果

Topology Optimization of Rotor Structure in Brushless DC Motor with Concentrated Windings Using Genetic Algorithm Combined with Cluster of Material

遗传算法结合材料聚类的集中绕组无刷直流电机转子结构拓扑优化

• 发表时间: 2011
• 期刊: IEEE Trans. Magnetics
• 作者: T. Ishikawa;K. Yonetake;and N. Kurita;丹野剛,原亮一,北裕幸;坂口，巖見，木澤，松永，島田;T. Ishikawa and K. Nakayama
• 通讯作者: T. Ishikawa and K. Nakayama

Design and Development of Switched Reluctance Motors by the ExperimentalDesign Method

实验设计法设计与开发开关磁阻电机

• 发表时间: 2012
• 期刊: 日本 AEM 学会誌
• 作者: T. Ishikawa;Y. Hashimoto and N. Kurita
• 通讯作者: Y. Hashimoto and N. Kurita

数種類の電流駆動方式における遺伝的アルゴリズムに材質のクラスターを考慮した永久磁石同期モータの回転子構造設計

多种电流驱动系统中遗传算法考虑材料簇的永磁同步电机转子结构设计

• 发表时间: 2012
• 作者: 金田 慎一;中山恭一,石川赴夫,栗田伸幸;小玉志樹,原亮一,田中英一,北裕幸;橋本佳典,石川赴夫,栗田伸幸;大澤潤騎,原亮一,北裕幸,小倉英二,平岩直哉,神谷英志,三栗祐己;中山恭一,石川赴夫,栗田伸幸
• 通讯作者: 中山恭一,石川赴夫,栗田伸幸

Generation of Music Scale from Brushless DC Motor with Surface Permanent Magnets

使用表面永磁无刷直流电机生成音阶

• 发表时间: 2012
• 期刊: Noise Control Engr. J.
• 作者: T. Ishikawa;R. Ataka;S. Azami;M. Matsunami;and N. Kurita
• 通讯作者: and N. Kurita

クラ スター考慮遺伝的アルゴリズムによる永久 磁石同期モータの回転子構造設計

基于集群感知遗传算法的永磁同步电机转子结构设计

• 发表时间: 2013
• 作者: 木澤;三浦;巖見;坂口;松永;島田;小玉志樹,原亮一,北裕幸,田中英電;中山恭一,石川赴夫,栗田伸幸
• 通讯作者: 中山恭一,石川赴夫,栗田伸幸