DocumentCode :
52335
Title :
Kite Generator System Modeling and Grid Integration
Author :
Ahmed, Mohammed Sh ; Hably, Ahmad ; Bacha, S.
Author_Institution :
G2ELAB, Domaine Univ., St. Martin d´Heres, France
Volume :
4
Issue :
4
fYear :
2013
fDate :
Oct. 2013
Firstpage :
968
Lastpage :
976
Abstract :
This paper deals principally with the grid connection problem of a kite-based system, named the “Kite Generator System (KGS).” It presents a control scheme of a closed-orbit KGS, which is a wind power system with a relaxation cycle. Such a system consists of a kite with its orientation mechanism and a power transformation system that connects the previous part to the electric grid. Starting from a given closed orbit, the optimal tether´s length rate variation (the kite´s tether radial velocity) and the optimal orbit´s period are found. The trajectory-tracking problem is not considered in this paper; only the kite´s tether radial velocity is controlled via the electric machine rotation velocity. The power transformation system transforms the mechanical energy generated by the kite into electrical energy that can be transferred to the grid. A Matlab/simulink model of the KGS is employed to observe its behavior, and to insure the control of its mechanical and electrical variables. In order to improve the KGS´s efficiency in case of slow changes of wind speed, a maximum power point tracking (MPPT) algorithm is proposed.
Keywords :
electric machines; maximum power point trackers; power generation control; power grids; power system simulation; power transformers; wind power plants; MPPT algorithm; Matlab-Simulink model; closed-orbit KGS; electric grid; electric machine rotation velocity; electrical energy transfer; grid connection problem; grid integration; kite generator system modeling; kite tether radial velocity; kite-based system; maximum power point tracking algorithm; mechanical energy; optimal orbit period; optimal tether length rate variation; power transformation system; relaxation cycle; trajectory-tracking problem; wind power system; wind speed; Maximum power point trackers; Renewable energy sources; Wind energy; High altitude wind energy; PID; kite-based wind systems; maximum power point tracking (MPPT); renewable energy;
fLanguage :
English
Journal_Title :
Sustainable Energy, IEEE Transactions on
Publisher :
ieee
ISSN :
1949-3029
Type :
jour
DOI :
10.1109/TSTE.2013.2260364
Filename :
6514708
Link To Document :
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