Vector magnetic characteristic analysis μ-E&S development announcement

Our company develops and sells the iron loss analysis software μ-E&S based on vector magnetic characteristic analysis technology. Using a vector magnetic characteristic measurement device, we measure the distorted magnetic field strength vector waveform generated when the magnetic flux density vector is excited with a sine wave, and create an algorithm to reference this data in a material database. The measurement is conducted at a 50 Hz excitation frequency, resulting in a waveform that also considers eddy currents. By using this magnetic flux density waveform and magnetic field strength waveform, we can plot the hysteresis curves for each x and y component and integrate the area, which gives us the iron loss (hysteresis loss + eddy current loss) at 50 Hz.
The challenge then becomes addressing the iron loss and distorted magnetic flux density waveform at frequencies other than 50 Hz. In conventional methods, it was assumed that the magnetic flux density was excited with a sine wave, and the fundamental wave component of the distorted magnetic flux density waveform was extracted to reference the database.
In the new E&S model that addresses this challenge, we use a classical eddy current model (modeling eddy currents in thin plates) to calculate and correct the magnetic field strength due to eddy currents at the operating frequency. Additionally, for the distorted magnetic flux density, we decompose it into harmonic components and calculate and correct the influence of eddy currents at those frequency components. This allows us to simulate a vector magnetic characteristic relationship that is closer to actual conditions, corresponding to the operating frequency and distorted magnetic flux density waveform.

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