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Vol.5 , No. 4, Publication Date: Dec. 2, 2018, Page: 96-101
 measurement of teeth magnetization, (b) measurement of a voltage on the winding of cyclically magnetized tooth, and (c) measurement of hysteresis loops of the partial hybrid core circuits. The Remacomp C-1200 magnetic measurement system was used to determine hysteresis loops and magnetic properties of the materials used in a hybrid core, including properties of consolidated package of the Fe<sub>78</sub>Si<sub>13</sub>B<sub>9</sub> ribbons, hysteresis loop of the Fe<sub>78</sub>Si<sub>13</sub>B<sub>9</sub> core, and hysteresis loop of the FeSi<sub>3</sub> core. The measurements showed that application of the amorphous material in a hybrid core resulted in considerable reduction of power losses thus making it possible to keep operating temperature of the core at the acceptable level of 36C. An experimental batch of these novel cores was made and used in the stators of low-power PMBLDC motors, which were then subjected to the performance tests. It was found that application of a hybrid core in the stator of the PM BLDC motor makes it possible to achieve relatively low level of power losses. It has been concluded that the results from this work are very promising and the novel hybrid core may be suitable for application in implantable blood pumps, serving as a heart-assist device.&picture=http://www.aascit.org/aascit/decorators/img/journal/915.jpg)
| [1] | Roman Kolano, Institute of Non-Ferrous Metals, Gliwice, Poland. |
| [2] | Aleksandra Kolano-Burian, Institute of Non-Ferrous Metals, Gliwice, Poland. |
| [3] | Marek Hreczka, Institute of Non-Ferrous Metals, Gliwice, Poland. |
| [4] | Przemysław Zackiewicz, Institute of Non-Ferrous Metals, Gliwice, Poland. |
| [5] | Magdalena Steczkowska-Kempka, Institute of Non-Ferrous Metals, Gliwice, Poland. |
| [6] | Miroslaw Lukiewski, Trafeco Sp. J., Boronow, Poland. |
This paper presents results of a research work intended to develop production technology of the hybrid multi-pole Fe78Si13B9+FeSi3 soft magnetic cores suitable for application in the stators of low-power PM BLDC motors, and methods for testing its functional properties and performance. The hybrid core is made from the FeSi3 support ring, onto which another core of the same dimensions, fitted with nine trapezoidal holes, is mounted. Both cores are firmly connected to each other by suitable glue. Next, the trapezoidal soft magnetic amorphous teeth are cut out from the cuboid-shaped packages of the 0.025 mm thick Fe78Si13B9 amorphous ribbons, consolidated and glued-together by an epoxy resin, and then they are mounted on the carrier rings. Under this work, properties of the hybrid cores fabricated by this technology were examined by three original methods: (a) measurement of teeth magnetization, (b) measurement of a voltage on the winding of cyclically magnetized tooth, and (c) measurement of hysteresis loops of the partial hybrid core circuits. The Remacomp C-1200 magnetic measurement system was used to determine hysteresis loops and magnetic properties of the materials used in a hybrid core, including properties of consolidated package of the Fe78Si13B9 ribbons, hysteresis loop of the Fe78Si13B9 core, and hysteresis loop of the FeSi3 core. The measurements showed that application of the amorphous material in a hybrid core resulted in considerable reduction of power losses thus making it possible to keep operating temperature of the core at the acceptable level of 36C. An experimental batch of these novel cores was made and used in the stators of low-power PMBLDC motors, which were then subjected to the performance tests. It was found that application of a hybrid core in the stator of the PM BLDC motor makes it possible to achieve relatively low level of power losses. It has been concluded that the results from this work are very promising and the novel hybrid core may be suitable for application in implantable blood pumps, serving as a heart-assist device.
Keywords
Amorphous Materials, Hybrid Soft Magnetic Core, Stator, PMBLDC Motor
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