ABSTRACT: The growing demand for motors that are smaller, more powerful, more efficient, and more reliable has led to improvisation in machine design techniques. Today, a considerable amount of research is being done in the field of Permanent Magnet Machine design. Therefore, tools for development and validation of the machine design are highly important.
This technical report presents an object-oriented application to design and evaluate the performance of PM motors. The application has been divided in three parts: mathematical identification of a permanent magnet motor model implemented in Matlab to validate and prototype the outlined procedure, permanent magnet motor sizing and performance evaluation implemented with a GUI-based Visual Basic 4.0 application, and permanent magnet motor design analysis implemented with a GUI-based Borland C++Builder4 application. Design of electric motors through computer simulations requires a systematic procedure using advanced software-based applications to represent the operation and features of the machine.
The purpose of this research study is to describe the development of a dynamic algorithm to model and to illustrate a procedure for designing brushless permanent magnet motors. In a detailed point of view, the design of PM motors requires the knowledge of the performance requirements and constraints imposed by the specific application area. In addition, PM motor design can be considered as the process of finding the best particular solution for the least effort and cost scheme. In the initial design, some approximations can be made; however, the overall process must take other design parameters to satisfy the requirements in order to meet the specifications.
In order to lay down a suitable permanent magnet motor strategy, machine components and constrains need to be established. The proposed machine design method is based on various iterations to obtain a proper and acceptable model. The main objective in the development of strategies for designing electric motors is to build a motor able to generate an adequate amount of torque with acceptable dimensions and weight. Permanent magnet motors can be designed with various configurations; nevertheless, the basic operation is based on the same principle.
The report has 122 pages.
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