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CONTROL STRATEGY AND TOPOLOGICAL STUDY OF A NOVEL SINGLE PHASE REGENERATIVE AC/DC CONVERTER FEEDING A DC SERVO MOTOR
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| Author(s) |
C. Cyr; K. AI-Haddad; G. Joos; P. D. Ziogas |
| Abstract |
A single phase converter allowing regeneration of the energy recovered by a four-quadrant chopper is presented and analysed in this paper. The topology of the converter is based on a regenerative two-quadrant bridge, using diodes in parallel with reverse connected transistors allowing bi-directional current flow. This stage is directly connected to a standard four quadrant chopper without dc link filtering. It result in a very compact converter for high performance DC servo-drives. The control scheme ensures low energy losses in the power semiconductors, a unity displacement factor and a perfect control of the power flow between the DC motor and the AC source. Experimental results confirm that the converter is fully regenerative and that the transfer from motoring to regeneration is instantaneous. An AC line filter is used to eliminate the high order harmonics component caused by the chopper and make this novel topology look like a standard diode bridge from the AC supply point of view. |
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| Filename: | Unnamed file |
| Filesize: | 685.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-11 by System |
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