Hirst Magnetic Instruments Ltd seeks to use open innovation – via the Innovate UK iX approach (KTN-iX™) to understand the unexplored dynamic nature of eddy current and hysteresis losses in permanent magnets in motors and generators.
Hirst Magnetics carry out magnetic measurements using a pulsed field magnetometer. The development of more powerful motors in the EV industry has demonstrated that magnet and motor manufacturers do not measure or understand the losses associated with dynamic hysteresis and eddy current losses in motors. These can involve 100’s of Watts (of heat generated in magnets) and are relying on static measurements to design motors which are of course are dynamic systems. As magnetic materials dislike heat, such sources must be measured and reduced where possible. Hirst Magnetics invites companies, Universities or individuals who develop magnetic models to work with them to explore how eddy current correction and hysteresis loss data can be simulated in a dynamic motor environment. To learn more about this challenge see the KTN Innovate Exchange website – Hirst Magnetics “Developing ways to measure and use eddy current and hysteresis loss data in permanent magnets used in dynamic motor environments” challenge. Applications close 24.1.24.