Torque characteristics and application of two-phase induction motor driven by two power supplies with nearby frequencies
✍ Scribed by Takashi Yano; Eiichi Mukai
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 206 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0424-7760
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✦ Synopsis
When two power supplies with nearby frequencies are connected to a two-phase induction motor, the motor generates two kinds of oscillatory torque components, which have frequency components of the sum and the difference between the frequencies of the power supplies. These oscillatory torque components are sinusoidal and the torque with the frequency component of the difference is considerably larger than the torque with the frequency component of the summation. Consequently, the motor behaves as a swing motor, which alternately changes the direction of rotation.
Because of the regularity of the period of the human heartbeat, this swing motor is suitable for use as the driver of an artificial heart. We propose here to use this swing motor as the pump for artificial hearts. In this paper, we present the fundamental theory and the characteristics of the swing motor, and an outline of the motor action for artificial hearts.