Achieve Optimal Electric Motor Design with EMWorks

Motors and Generators
By Majdi EL Fahem | 02/06/2022

Electric motors are the ultimate solution for zero-emission vehicles. They are also deployed in several domestic and industrial applications like home appliances, aerospace, defense, etc. Certain characteristics that affect motor performance need to be thoroughly considered by designers and drive engineers when designing eclectic motors to fit specific operating conditions or withstand certain atmospheric conditions. Since the requirements differ significantly, so do the motor characteristics. In electric vehicles, the motor must have a compact and lightweight structure, while in wind turbines, it should provide high torque at low speed.


Electric Motor


Electric Vehicle Charging

Prior to prototyping, a CAD design model is required to make the necessary calculations. EMWorks, an electromagnetic simulation software provider, offers a comprehensive, accurate, and user-friendly virtual prototyping platform for electric machines.


EMWorks Solution for Electric Machines


MotorWizard, an electric motor CAD design and simulation template-based software, serves to automatically create and analyze a variety of electric motors using an intuitive wizard-based interface. The MotorWizard tool is recommended when starting your design from scratch with a typical geometry. It offers a wide range of customizable dimensions and parameters which make the study of electric machines easy and flexible. Also, the powerful integrated analytical capabilities and finite element-based solvers make the design process of electric motors effortless, accurate, and really quick. 



V-Shape PM Sychronous Motor Built with MotorWizard




Animation of the Magnetic Flux Results



Back EMF Results Generated by MotorWizard



Efficiency Map Computed by MotorWizard

EMWorks2D and EMS 3D software packages are dedicated to electromagnetic applications including motors, generators, transformers, MEMS, eddy currents, magnetic braking, sensors, and many more.
EMWorks2D is used to analyze machine geometry that exhibits a two-dimensional symmetry (planar and rotational) and obtain its performance results. With the computed machine parameters such as its d-q axis inductances and magnetic flux linkage, you  can generate in a few clicks various plots such as efficiency map, power vs speed, torque vs speed, etc. using the performance calculator feature of MZ without the need for a motor CAD diagram. In addition, the migration from 3D to 2D geometry is made easy using EMWorks2D “ 2D Simplification” feature.



Interior PM Synchronous Reluctance Motor Used in Prius 2004



Animation of the Magnetic Field Results 



Locked Rotor Results – EMWorks2D Results vs Lab Results


EMS is a 3D multi-physics software with powerful coupling capabilities. It enables coupling magnetic and electrical designs to circuit, motion, thermal, and structural analyses on the same model in a hassle-free integrated environment without the need to import/export any data. Hence, it accelerates  the design process and generates solutions without compromising accuracy.
The seamless interaction between all these tools helps optimize the design process and provides output data such as magnetic fields, electromagnetic losses (eddy-current loss, hysteresis loss, copper loss, and excess loss), full-load and no-load results, performance datasheets, efficiency map, mechanical data (angular displacement, speed, etc.), temperature and stress plots.


Different CAD Models of Axial and Combined Axial-Radial Flux Motors




Animation of Magnetic Flux Results 

Conclusion

In summary, EMWorks offers a comprehensive solution for electric motor design and simulation, catering to diverse applications from electric vehicles to industrial machinery. With intuitive tools like MotorWizard and advanced software packages like EMWorks2D and EMS, engineers can efficiently analyze and optimize motor performance. From CAD design to detailed performance analysis, EMWorks accelerates the design process, ensuring efficient and reliable electric motor solutions for various industries.