リラクタンストルクを主とする埋込磁石同期モータの開発 [in Japanese] Interior Permanent Magnet Synchronous Motors Mainly Using Reluctance Torque [in Japanese]
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Permanent magnet synchronous motors (PMSMs) are widely used in many applications as high-performance variable-speed drives. In the traction drives such as an electric vehicle and the compressor drives of air conditioner, a wide constant-power speed range as well as a high efficiency operation are desired. The aim of this paper is to develop the high- performance PMSM, which can offer a high efficiency performance in the high speed region including light load condition as well as a wide constant-power speed range. The simulations show that the proposed interior PMSM, where the reluctance torque is mainly produced and the permanent magnet flux assists torque production, is suitable to achieve such demanded performance. According to such new design concept, the prototype PMSM is designed and several drive tests are carried out. The saliency ratio of the prototype IPMSM is about 5 and as a result the reluctance torque is a main torque component, which is above 70% of total torque. The prototype IPMSM can offer the constant-power speed range of up to 5:1 and the high efficiency drives in the high-speed constant-power region. The proposed IPMSM is suitable for a variable-speed drives requiring a high-speed and constant-power operation.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 119(10), 1177-1183, 1999-10
The Institute of Electrical Engineers of Japan