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T-SHAPED LIM DRIVEN BY A THREE-PHASE PWM AC CHOPPER
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| Author(s) |
B. Brunelli; D. Casadei; G. Serra; A. Tani |
| Abstract |
An analysis of the steady-state performance of a T-shaped linear induction motor driven by three-phase PWM AC chopper is presented. This type of LIM can find application particularly in drives for material dislocation along paths showing sudden direction changes in the horizontal plane and in the vertical plane. The particular force versus speed curve of this T-shaped LlM allows the speed control to be obtained by varying the primary voltage only. For this purpose a chopper type AC voltage regulator is employed being simple, economical and highly reliable. A numerical simulation of the PWM AC chopper operation has been developed. Finally, in order to limit the negative current sequence in the T-shaped LIM, the technical feasibility of unsymmetric voltage control is investigated. |
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| Filename: | Unnamed file |
| Filesize: | 3.29 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-07 by System |
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