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We have developed a parallel computation method of the magnetic field for rotating machines using the three-dimensional finite element method with edge elements, which can run on PC clusters. The developed method is based on the domain decomposition method. In the developed method, the block ICCG method is adopted to solve the linear equation. The performance of the developed method running on a PC...
The dynamic characteristics of an electromagnet for a circuit breaker taking into account the eddy currents are quantitatively clarified using the three-dimensional finite element method (3-D FEM). In this paper, it is numerically clarified that it is useful to use divided cores and yokes of the electromagnet in order to reduce the eddy current loss.
We analyzed a transformer with the variable gaps between the iron cores using the three-dimensional finite element method (3-D FEM). The effects of the gap between the iron cores on the inductance and the loss of the transformer are quantitatively clarified.
We clarified the effects of permanent magnet division on the electrical loss and temperature distribution of an interior permanent magnet motor driven by the PWM inverter using the 3-D finite element method.
When the claw-poled stepping motor is rotated at high speed, the torque remarkably deteriorates because of the eddy current generating in the stator core. In this paper, the influence of the stator core materials on the dynamic characteristics of a claw-poled stepping motor is evaluated using the 3-D finite element method. The validity of the calculated results is clarified through the comparison...
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