As part of my involvement in the ICLoop project, I have been leading the design of a linear induction motor traction inverter. Our aim is to build our way up to being able to coordinate multiple inverter systems supplying 50kW+ on two LIM halves.
This is an ongoing project and requires a large amount of testing to ensure we are developing a safe and reliable system.
After a lot of research and design, we decided the best way to proceed would to be by building smaller prototypes and working our way up in size and power. Our first prototype consisted of a full 3 phase inverter layed out on a breadboard. This has many limitations, namely: a very low current limit due to breadboard connections and bad analog signal performance.
The next step was to get rid of the breadboard as that was the limiting factor in scaling up power tests. To gain experience with IGBTs, we decided to design our own first three phase half bridge gate module.
This is only the beginning and I am very excited to (safely) dive into the world of high power electronics and control.