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A Peak Power Tracking Wind System Operating with a Controlled Load Structure for Stand-Alone Applications
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| Author(s) |
Mirela DRUGA, Cristian NICHITA, Georges BARAKAT, Brayima DAKYO, Emil CEANGA |
| Abstract |
This work is a contribution to the development of a small wind power system operating on isolated sites. This paper presents a specific peak power tracking method (MPPT) designed for low power wind systems, operating in autonomous mode. Tracking operation is performed with a battery control device associated to a controlled load system. Starting from the method principles and the system structural elements, a stand-alone wind power system was developed with a synchronous permanent magnet generator. The considered system structure performs the maximization of the wind energy conversion by adjusting the output voltage of the permanent magnet synchronous generator. The local network supply continuity is ensured by battery energy storage accumulation. The wind system configuration is based on a capacitor voltage control, associated to battery operation. In this case, the system operating mode without battery is allowed for short time periods. Manipulating the auxiliary loads, the battery’s life can be extended. The proposed system provides a good compromise between two power supply requirements: to maximize the wind energy conversion and to ensure the balance between required and produced power, considering in the same time the constraints imposed by the battery operation. The wind system should have important time delivery in order to minimize storage capacity. Using Matlab/Simulink (SimPower) environment, simulations have been performed in order to analyze the operating behavior of the considered system. |
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| Filename: | 0851-epe2009-full-12070965.pdf |
| Filesize: | 238 KB |
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| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
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