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LORD Corporation Thermal Management Technology Improves Performance for EVs and Trains

( 02/13/2019 )

Next Generation High-Performance Traction Motor

CARY, N.C. – LORD Corporation – a leading supplier of thermal management materials to the transportation, electronics, LED, and solar industries – has announced its collaboration with ABB, a pioneering technology leader in power grids, electrification products, industrial automation, and robotics and motion. The companies have partnered to design the next generation of railway electric vehicle (EV) traction motors using LORD’s technology that enables more compact motors and overall improved performance.

“Our team is excited about this cooperation with ABB – one of the largest and most competent leaders in the world of motors. Thermal management in electric motors is becoming more and more critical as demand for decreased size becomes the norm,” said Brad Gibson, Director, Global Business, LORD Corporation.

LORD and ABB AB, located in Västerås, Sweden, began testing thermally conductive epoxies in traction motors in March 2018 in response to a need for more robust electric motors with higher power density, driven by electrification in the rail and large-vehicle transportation sector. LORD and ABB shared this joint work recently at ESARS-ITEC 2018.

Dr. Shafigh Nategh, R&D Senior Engineer and Project Leader from ABB, noted in the paper: “Temperature measurement results in both steady-state and transient show that potting, as well as reducing the hot spot temperature, decreases the traction motor dependency on the load change in transient, and also makes the temperature in the end winding evenly distributed. All these together provide the possibility to make the traction motors more compact and considerably improve their performance.’’ Findings showed that potting the stator end windings with CoolTherm® EP-3500 reduced temperatures by up to about 70-80°C in steady-state conditions and up to about 40°C in transient conditions.

“The end windings are the winding parts more involved in thermal hot spots. The use of potted end windings allows an increase of the thermal conductivity between end windings and external frame with a better heat exchange and better overload capability of the motor,” said Professor Aldo Boglietti, Politecnico di Torino, one of most well-known professors in electrical machine thermal and cooling design and a co-author of the paper.

For more information, call 1-877-275-5673 or visit www.lord.com/CoolTherm. For an interactive experience highlighting LORD innovations and solutions around the world, visit www.lord.com/innovating-together/around-the-world.