Optimum Design of Permanent Magnet Brushless DC Machines

提出的研究目标是开发一种永磁无刷直流电机的优化设计方法。几何复杂性、结构、电枢反应效应和铁磁材料的非线性特性等问题将在建模和优化设计过程的发展中得到解决。该方法将是一种基于约束优化技术的非线性规划方法。预计磁场的求解将采用有限元技术，初始网格离散程度较低。随着最优解的收敛，网格的离散化程度会增加，以获得更高的精度和计算速度。一旦开发出一种算法来获得最佳设计参数，将对系统的性能进行评估，并与常规设计技术进行比较。可行性和效率将在整个研究项目中得到考虑。

The objectives of the proposed research are to developed an optimum design approach for permanent magnet brushless dc machines. Issues such as geometric complexities, configuration, armature reaction effects and nonlinear characteristics of the ferromagnetic materials will be addressed in the development of the modeling and optimum design procedures. The approach will be a nonlinear programming approach based on constrained optimization techniques. It is anticipated that the magnetic field will be solved by use of finite-element techniques, with an initial low degree of discretization meshes. The degree of discretization meshes will be increased with convergence of the optimum solution, for high accuracy and computing speed. Once an algorithm is developed to obtain the optimum design parameters, the performance of the system will be evaluated and compared with conventional design techniques. Feasibility and efficiency will be taken into consideration throughout the research project.