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Title: Modelling and control of wind and wave energy conversion systems
Author: Wu, Feng
ISNI:       0000 0004 2695 2691
Awarding Body: The University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2009
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The modelling and control of wind and wave energy conversion systems is carried out in this thesis. The thesis comprises two parts. The first part is focused on the modelling and control of wind conversion system while the second part is on the modelling and control of wave energy conversion system (WEe). In the first part, the small signal stability of the \\lind turbine (\VT) with doubly fed induction generator (DFIG) and the WT with direct-drive permanent magnet generator (DDPMG) an: analysed using detailed models. A parameter tuning algorithm and a nonlinear controller are proposed, respectively, to improve dynamic performance of WT with DFIG. The impacts of WT with DFIG, WT with DDPMG and WT the induction generator (lG) on power system transient stability are compared. In the second part, a new coordinate transformation is proposed for the model of Archimedes wave swing (A WS) based WEe system, the transformed model is compatible with the power system dynamic analysis. The controllers for A WS based WEe are designed so as to extract maximum power from the wave, output constant power and maintain the terminal voltage. The application of battery energy storage in smoothing the output power of WEe system is studied.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available