Electric Motor Design and Specification
Abstract: Electrical Motors are the best energy converters - electrical to and from mechanical - used in industry. The design process requires a complex approach that starts from specifications: electromechanical, thermal, and NVH. This presentation covers the essential steps in creating the seeding initial design that can be further optimized and analyzed. Considering all the multi-physics aspects of the electrical motor's performance is paramount in achieving a good electrical motor design that will comply with all the requirements. Simultaneous criteria are used when creating the initial design: torque ratio per volume, thermal cooling system, and mechanical stress are considered iteratively until a feasible solution will emerge. Ansys Motor-CAD simulation modules will be used to demonstrate the process: E-Magnetics, Thermal, and Mechanical modules are interactively coupled to enable the engineer to analyze several solutions. The design process is illustrated considering AC motors (permanent magnet and induction types) for traction applications.