Motor Speed Controller is now main-stream technology

摘要

Firstly, let me congratulate Silicon Chip on the Induction Motor Speed Controller project (April & May 2012). This is now certainly a main-stream technology.I thought I'd share with you and your readers some of my experiences with IM (induction motor) drives for electric cars (EVs) over the past 40+ years. Developing a fascination for EVs in the 1960s, I managed to scrounge (from a disused electric milk-cart) aDC motor and various other bits that I put in place of the engine and gearbox in a small car. Using "dead" batteries from the local garage, I managed to get enough range to drive a few kilometres.