Approach to induction motor drive with controlled voltage source
Journal Article
·
· Electr. Eng. Jpn. (Engl. Transl.); (United States)
Induction motors are widely used for many purposes because of their low cost and reliability. However, their poor control characteristics make it necessary to use dc motors for those industrial applications for which elaborate control is required. Recent progress in slip frequency control is helping to overcome the difficulty associated with poor control performances of induction motors. The motor current is decomposed into two components: the flux component and the torque component. If the motor torque is controlled so that it is proportional to the slip frequency, then the motor responds very quickly without causing oscillation. The induction motors used for this purpose are usually driven by the controlled current source (CCS) such as a PWM inverter or cycloconverter. The current of CCS is kept constant as the gain of the current minor loop increases. In practice, however, the minor current loop gain is limited by switching frequency. Therefore, it is difficult to construct a CCS with ideal characteristics. A means to overcome the difficulty is to drive an induction motor by the controlled voltage source (CVS). This kind of control scheme is discussed. The various CVS schemes proposed to date are compared.
- Research Organization:
- Keio Univ., Yokohama, Japan
- OSTI ID:
- 5120027
- Journal Information:
- Electr. Eng. Jpn. (Engl. Transl.); (United States), Journal Name: Electr. Eng. Jpn. (Engl. Transl.); (United States) Vol. 104:6; ISSN EENJA
- Country of Publication:
- United States
- Language:
- English
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