Influence Evaluation of Manufacturing Processes on the Magnetic Properties of the Actual Induction Motor Stator Core Using the Stator Winding Excitation Method

Oka, M.; Ogasawara, Takato; Enokizono, Masato

doi:10.14243/jsaem.23.193

Cited by 4 publications

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“…The compressive stress that the stator core received from the frame was calculated by using the finite element method [9] . The condition of the calculation was as follows.…”

Section: Specimensmentioning

confidence: 99%

Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method

Oka

Enokizono²

2018

Journal of Electrical Engineering

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To improve the efficiency of electric motors, we developed the excitation inner core method to evaluate the magnetic properties such as the iron loss of the actual stator core. After preparing two stator cores with a frame, we examined the frames influence of compressive stress by applying the standard and small excitation inner core methods to evaluate the iron loss of both stator cores having a frame. After removing the frames of the two stator cores, we evaluated the iron loss of two stator cores without the frames again by applying both methods.

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“…The compressive stress that the stator core received from the frame was calculated by using the finite element method [9] . The condition of the calculation was as follows.…”

Section: Specimensmentioning

confidence: 99%

Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method

Oka

Enokizono²

2018

Journal of Electrical Engineering

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Residual stress evaluation by Barkhausen signals with a magnetic field sensor for high efficiency electrical motors

Tsuchida

Enokizono²

2017

AIP Advances

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The iron loss of industrial motors increases by residual stress during manufacturing processes. It is very important to make clear the distribution of the residual stress in the motor cores to reduce the iron loss in the motors. Barkhausen signals which occur on electrical steel sheets can be used for the evaluation of the residual stress because they are very sensitive to the material properties. Generally, a B-sensor is used to measure Barkhausen signals, however, we developed a new H-sensor to measure them and applied it into the stress evaluation. It is supposed that the Barkhausen signals by using a H-sensor can be much effective to the residual stress on the electrical steel sheets by referring our results regarding to the stress evaluations. We evaluated the tensile stress of the electrical steel sheets by measuring Barkhausen signals by using our developed H-sensor for high efficiency electrical motors.

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Evaluation of hysteresis loss and eddy-current loss in induction motor stator cores using the excitation inner core method

Oka

Enokizono²

2016

2016 XXII International Conference on Electrical Machines (ICEM)

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Influence Evaluation of Manufacturing Processes on the Magnetic Properties of the Actual Induction Motor Stator Core Using the Stator Winding Excitation Method

Cited by 4 publications

References 0 publications

Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method

Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method

Residual stress evaluation by Barkhausen signals with a magnetic field sensor for high efficiency electrical motors

Evaluation of hysteresis loss and eddy-current loss in induction motor stator cores using the excitation inner core method

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