| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
Conventional bearingless motors have independent suspension and rotation windings in the stator core. For simplification of structure and an increase in torque and power of the motor, this research focuses on integration of the winding and the high speed drive at a driving frequency of 5 kHz. In this research, based on the previously proposed zero-sequence technique, a 2-DOF controlled bearingless motor with three-coils and a four-phase bearingless motor with integrated winding configuration, have been developed. In addition, integration of magnetic suspension function into a conventional interior permanent magnet motor has been proposed, and a six-pole bearingless motor that has combined DC and AC magnetic fluxes is driven at a rotational speed of 100,000 rpm (electrical frequency of 5 kHz).
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