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Recommended White Papers:
[W-MA-196] Modeling of Excess Loss for Arbitrary Magnetic Flux Density Waveforms
Accurate loss prediction through simulation is crucial for high-efficiency advanced motor applications, especially in electric vehicles. The iron loss generated in the electromagnetic steel plate, one of the major loss components, consists of hysteresis loss, classical eddy current loss, and excess loss. Enhanced accuracy in simulation-based estimation of hysteresis loss has been achieved in recent years through the use of the Play model. Similarly, the use of the 1-D finite element method has enhanced the accuracy of the classical eddy-current loss prediction. However, the comprehensive modeling of excess loss remains challenging, and is an area requiring further investigations. Complex magnetic flux waveforms with multiple frequencies, such as minor loops, occur inside the motor, and modeling for such kind of waveforms is required.
Building upon the Bertotti model, this paper proposes a new modeling technique. More precisely, this approach is grounded in the power of the time derivative of the magnetic flux density and incorporates a flux density-dependent excess loss coefficient. First, we identify a combination of exponents and the excess loss coefficient that accurately reproduces the previously measured iron loss in a ring specimen. The obtained parameters are then considered to be material-specific and used in the simulation. For validation, the proposed modeling technique is applied as a case study to another material with AC + harmonic magnetic flux density.
To read more, please see the following page!
EUCAS 2025
We will be run a booth at the EUCAS 2025 (17th European Conference on Applied Superconductivity).
EUCAS has been for more than three decades a premier event for the dissemination, discussion, and knowledge exchange of breakthroughs and state-of-the-art developments across the several domains of applied superconductivity.
Dates: Sep. 21st – 25th
Venue: Alfandega Congress Center (Porto, Portugal)
Booth number: 13
JMAG Users Conference & Training 2025 in Germany
This is to announce that the Europe JMAG distributor POWERSYS will be holding the JMAG Users Conference in Germany.
The conference will be held over two days; the first day will be Training, and JMAG Users Conference will consist of the second day.
This event is a unique opportunity to engage with industry leaders and experts at the forefront of electric motor innovation. Join us as we explore the latest technologies driving the race to virtual prototyping.
Come join us!
Dates:
– BEGINNER TRAINING
– ADVANCED TRAINING
September 30th
– Advanced e-Motor Design with JMAG (JMAG Users Conference)
October 1st
Venue: LE MERIDIEN (Stuttgart, Germany)
