Work

Optimizing Boosting for Faster Calorimetric Measurement of High-Efficiency Electric Machines

Year: 2025

Type: conference-paper

Abstract: High-efficiency electric drivetrain components require accurate loss measurements, for which calorimetric methods offer superior precision but suffer from long stabilization times. This work introduces a boosting technique that accelerates stabilization by temporarily adjusting device settings such as speed and torque before settling into the target operating point. The approach is demonstrated on a 109 kW Interior Permanent Magnet Synchronous Machine with advanced cooling, evaluated at 13 operating points. Optimized boosting settings for a bang-bang control strategy are determined using a thermal model of the device. On average, boosting is applied for 24% of the time to reach steady state and reduces the total measurement duration from 4.2 hours to 2.6 hours, a 39% improvement, while maintaining accuracy. The method is generic in formulation and offers a promising solution for faster calorimetric loss measurements of high-efficiency electric drivetrain components.

Source: International Workshop on Thermal Investigations of ICs and Systems

DOI: 10.1109/therminic65879.2025.11216900

Authors: Jasper Nonneman, Ilya T'Jollyn, Jeroen De Kooning, Michel De Paepe

Institutions: Ghent University, University of Antwerp

Language: English

Topic: Electric Motor Design and Analysis

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funders: Flanders Make, Vlaamse regering