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Control of Active Front-End Inverter of Wind Energy Plants during Assymetrical Grid Faults - Paper
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| Author(s) |
T. Völker, C. Mehler, B. Orlik |
| Abstract |
Back-to-back converters are an interesting popular solution for electric drive controls. Higher dynamic performance as well as improved efficiency by recovery of breaking energy are popular features. Especially for renewable energy sources like wind energy the active front-end inverter is needed to feed the energy into the grid. The control of the active front-end must regulate the DC-link voltage. If there are asymmetrical three phase voltages in the grid the conventional DC-control produces dissatisfactory results. In this paper a new control strategy of the operation of back-to-backl converters is presented. A new coordinate transformation is used to increase performance of the control with asymmetrical grid voltages. The new control scheme is tested in sumulations and measurements. |
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| Filename: | Unnamed file |
| Filesize: | 806.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2009-12-08 by System |
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