Electromagnetic Field Analysis Software 【μ-E&S Vector Magnetic Property Analysis / Iron Loss Distribution】

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μ－E&S

last updated：May 20, 2025

ミューテック

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Aiming for low loss, accurately measure the actual state of electromagnetic materials and understand and analyze their vector magnetic properties!

The evaluation of iron loss, which has been a bottleneck in motor analysis. Traditional methods only consider iron loss as a function of magnetic flux density, resulting in low accuracy. However, "Vector Magnetic Characteristic Analysis" accurately determines the magnetic field and magnetic flux density to calculate iron loss. It can compute high-precision distributions of magnetic field, magnetic flux density, and iron loss that are not achievable with other software. Vector magnetic characteristics refer to the properties that take into account the relationship between the magnetic field H and magnetic flux density B of electromagnetic steel materials, considering their direction (vector). The finite element method electromagnetic field simulator that considers these characteristics is "μ-E&S." 【Features】 - High-precision calculation of magnetic field vectors is possible by considering vector magnetic characteristics. - Rotating magnetic fields and hysteresis can be calculated. - It has been developed as an easy-to-use tool specifically for iron loss evaluation. *For more details, please request materials or view the PDF data from the download section.

Related Link - https://www.mutec.org/m_ess.html

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For more details, please request the materials or view the PDF data from the download.

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Manufacturers that need measures to reduce iron loss, such as motors and transformers for EV motors and generators.

Detailed information

Maximum magnetic flux density Distribution of maximum magnetic flux density in IPM motors: The lack of variation in the circumferential direction is the same result as in conventional methods.
Maximum magnetic field strength Distribution of maximum magnetic field strength in IPM motors: The rolling direction is along the X-axis, and anisotropy is calculated even for non-oriented electrical steel sheets, resulting in high regions appearing in the upper and lower areas. This is a result that cannot be calculated using conventional methods.
Iron loss distribution Iron loss distribution of IPM motors: Using the calculated results of H and B, hysteresis curves are drawn for each element, and the total area is used to calculate the iron loss distribution. Since the magnetic field strength was higher in the upper and lower regions, higher portions of iron loss were calculated in those areas. This is a result that cannot be obtained using conventional methods.
Hysteresis curve The magnetic flux density vector and magnetic field strength vector for each element have been obtained as calculation results, so the hysteresis curve is simply formed by connecting them over one electrical angle cycle. There is no need to use algorithms such as hysteresis models.
Rotating magnetic flux / rotating magnetic field Lissajous waveform: The Lissajous waveform is the trajectory of the magnetic flux density vector and the magnetic field strength vector. The difference in the direction of each vector (spatial phase difference) is also obtained as a calculation result.
Maximum magnetic flux density Transformers are made by combining oriented electrical steel sheets.
Maximum magnetic field strength In the T-shaped joint, the magnetization easy direction is shifted by 90 degrees, resulting in a region with high magnetic field strength.
Iron loss distribution The magnetic flux density is high on the inside of the transformer window, so the iron loss also increases, but the reason for the large iron loss at the T-shaped joint is due to the high magnetic field strength. This is a result that cannot be obtained by conventional methods.
Rotating magnetic flux and rotating magnetic field. In the T-shaped joint, the rotating magnetic flux is significantly present. Additionally, the transformer leg generates alternating magnetic flux along the direction of magnetic charge ease, but a small rotating magnetic field can be observed. This is a result that cannot be obtained by conventional methods.