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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gholizad, H. Binder, A. |
| Copyright Year | 2011 |
| Description | Author affiliation: Darmstadt University of Technology, Germany (Gholizad, H.; Binder, A.) |
| Abstract | A new concept of a variable impedance (Z) induction motor (VZIM) is introduced in order to combine high starting torque and high efficiency at the nominal operating point. In this type of induction motors a sectionalized cage rotor with different bar shapes for each sub-cage section is used. At standstill, sub-cages with high resistances are placed inside the stator bore to increase the starting torque and reduce the starting current. By increasing the rotational speed, a centrifugal mechanism moves the rotor in the axial direction and brings the other sections of the rotor cage with low resistances inside the stator bore to reduce the rotor losses at rated speed. This leads to increased efficiency at nominal operation. An analytical model is presented to predict the performances of the proposed variable impedance induction machines. A 5.5 kW, 4 pole prototype motor has been built and tested. Measurement results prove the accuracy of the presented analytical model. |
| Starting Page | 1504 |
| Ending Page | 1509 |
| File Size | 629068 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781457700606 |
| e-ISBN | 9781457700613 |
| DOI | 10.1109/IEMDC.2011.5994832 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-15 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Rotors Torque Induction motors Stators Equivalent circuits Software Bars starting torque Analytical model efficiency equivalent circuit variable impedance induction machine squirrel cage motor |
| Content Type | Text |
| Resource Type | Article |
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