Development of a hardware-in-the-loop wind energy conversion system emulator

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Fen Bilimleri Enstitüsü, Türkiye

Tezin Onay Tarihi: 2015

Öğrenci: GÖKMEN CENGİZ

Danışman: HULUSİ BÜLENT ERTAN

Özet:

This thesis focuses on developing a hardware-in-the-loop wind energy conversion system emulator. In addition, software for simulating the hardware-in-the-loop system is developed. The thesis describes how a wind turbine model is developed by controlling an induction motor to emulate wind turbine shaft. Control of the overall hardware-in-the-loop system for achieving an accurate medium for wind energy conversion system emulation is explained. The software uses the same model for the wind turbine as the HIL system. Modelling of the generator and gearbox is fairly straightforward. However, back-to-back converters which facilitate connection of the system to the grid are highly nonlinear elements. A novel neural network based model is developed for these converters by performing experiments on them and the accuracy of the model is investigated. Finally, the software developed is used to investigate problems of islanding operation so that energy quality of the local loads can be maintained in this operation.