Proposal and experimental study on permanent magnet-type transverse flux synchronous machines with a disk rotor for large torque direct drives

大扭矩直驱盘式转子永磁横向磁通同步电机的提出及实验研究

基本信息

批准号：
21560291
负责人：
KOSEKI Takafumi
金额：
$ 3万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2009
资助国家：
日本
起止时间：
2009 至 2011
项目状态：
已结题

项目摘要

Direct drive motor solutions are becoming increasingly important in electric motor applications from hybrid vehicles to electric ships. New type permanent magnet synchronous motors(PMSMs) such as a transverse flux machine are an attractive option for such applications because of high torque characteristics. Hence a C-core type transverse flux PMSM for electric ships has been proposed and studied theoretically and experimentally in this research. This motor had some critical problems such as high cogging torque and unexpectedly large resistance torque in our early study stage. We have, therefore, proposed the methods for higher performance in a transverse flux type PMSM for electric ships, especially focusing on reducing cogging torque and maximizing torque. We habe built a prototype motor with low cogging torque characteristics using carefully designrd pole-core combination. Maximizing torque method under the space constraint using magnetic circuit method has been theoretically investigated. We have simultaneously investigated possibility of applying the current type dual sampling rate observer to low speed drive controls in our prototype experimental bench. Experimental results demonstrate validity of low speed driving control of the proposed synchronous motor with large number of poles with the current type dual sampling rate observer. For further development of large torque machines, we are continuing invstigations on machine designe methodology based on siplified magnetic circuit calculations.

直接驱动电动机解决方案在从混合动力汽车到电船的电动机应用中变得越来越重要。由于高扭矩特性，新型型永久磁铁同步电动机（PMSM）（例如横向通量机）是此类应用的有吸引力的选择。因此，在这项研究中，已经提出了用于电动船的C型型横向通量PMSM。该电动机在我们的早期研究阶段存在一些关键问题，例如高齿轮扭矩和出乎意料的大电阻扭矩。因此，我们提出了用于电船的横向通量型PMSM中较高性能的方法，尤其是专注于降低齿轮扭矩和最大化扭矩。我们使用精心设计的杆核组合制造了具有低齿轮扭矩特性的原型电动机。理论上已经研究了使用磁路方法在空间约束下最大化扭矩方法。我们同时研究了将当前类型的双采样率观察者应用于原型实验台中的低速驱动器控制的可能性。实验结果表明，与当前双重采样速率观察者的大量极线对拟议同步电动机的低速驱动控制有效性。为了进一步开发大型扭矩机，我们正在基于磁电路计算的机器设计方法进行侵入。