I am an undergraduate Mechatronics Engineering student at VIT University, Chennai, India. A few months ago, I got the opportunity to work on research on wireless charging technologies for electric vehicles (EVs). After doing a study of the existing literature in this field, my faculty guide and I decided to do a comparison study on different shapes of coils used for wireless power transfer for EV charging. As EV charging is a high-power application, charging efficiency is a very important factor in the implementation of wireless charging systems. So, to perform the simulation study, I researched different software options and their benefits. Even though I found a few other free or easily available software programs, I found EMWorks EMS to be the most suitable one for my application, especially in terms of ease of use and simple workflow. Also, another major benefit was the integration with Solidworks. Since Solidworks is our primary 3D CAD software, we could directly simulate the models, unlike some other software tools, which require the model to be exported in a particular format and then imported into the simulation software. So any changes I made to the SolidWorks model were immediately reflected in EMS.
Once I imported my models, I was able to quickly create an AC Magnetic study and configure the material properties and the coil parameters. Also, since EMS has Litz wire coils, it provides a very accurate simulation. Once the parameters were set up, the simulation parameters were configured. The parameterization option allowed me to set up multiple scenarios and simulate them all together, which saved a lot of time. I generated about 30 scenarios and simulated them as a batch process. I was able to easily plot the required output variables against these input parameters from the results table. I would like to conclude by expressing my satisfaction with this software for my research, and I look forward to working with EMWorks in the future too.