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Effects of Pole Changing in a Permanent Magnet Motor
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| Author(s) |
Kazuto SAKAI, Nariaki YUZAWA |
| Abstract |
To reduce energy consumption, we developed a technique that varies the number of magnetic poles in a permanent magnet (PM) motor. We propose a PM motor that can change the number of magnetic poles and produce two types of torque. When the motor operates with 8 poles, it produces a PM torque at low speeds. When the motor changes to 4 poles, it produces both PM torque and reluctance torque at high speeds. We explain the principle and basic characteristics of the motor, which has a PM magnetized by the pulse d-axis current of the armature winding. The results of our experiment show that the proposed motor reduces core loss by 49\% or 33\% and triples the speed range of the motor. |
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| Filename: | 0036-epe2013-full-11430167.pdf |
| Filesize: | 2.322 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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