Abstract
Single phase induction motors employ during the startup a capacitor that is connected to the auxiliary winding in order to create a rotating magnetic field and consequently the necessary starting torque. When the motor has acquired during the starting phase about 75% of its nominal rotational speed, fast enough just for the main winding to maintain the torque, a centrifugal switch disconnects the auxiliary winding and capacitor from the supply. This paper examines the possibility to use instead of the fixed capacitor and the centrifugal switch a variable capacitor whose impedance can be controlled by electronics and digital processing with respect to the necessary starting and adequate steady state torque with further prospects of optimal working point regulation.
Original language | English |
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Title of host publication | 2017 14th International Conference on Engineering of Modern Electric Systems, EMES 2017 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 87-90 |
Number of pages | 4 |
ISBN (Electronic) | 9781509060733 |
DOIs | |
Publication status | Published - 13 Jul 2017 |
Event | 14th International Conference on Engineering of Modern Electric Systems, EMES 2017 - Oradea Duration: 1 Jun 2017 → 2 Jun 2017 |
Other
Other | 14th International Conference on Engineering of Modern Electric Systems, EMES 2017 |
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City | Oradea |
Period | 1/06/17 → 2/06/17 |
Keywords
- controllable working point
- Induction motor startup
- variable reactance
- wound aluminum foils