Title :
Power generation redispatching to improve transient stability in power systems using controllability and observability gramians
Author :
Nguyen, Thinh T. ; Kandlawala, M.F. ; Rahim, A.H. ; Alam, Md. Ashraful
Author_Institution :
Sch. of Electr., Univ. of Western Australia, Crawley, NSW
Abstract :
Dynamic model of a variable speed wind generation system connected to grid is developed, and its steady state and dynamic performance is explored. The performance under wind gust and three-phase fault has been studied and the amount of transient injection to the grid is also investigated. A control scheme that minimizes the transient injection through a thyristor controlled variable capacitance at the generator terminal is proposed and developed. Fuzzy logic based controller is included in its control loop. Simulation results confirmed the effectiveness of the fuzzy logic controlled variable capacitance compensation scheme.
Keywords :
fuzzy control; power generation control; power grids; thyristor applications; wind turbines; fuzzy logic control; power grids; thyristor controlled variable capacitance; transient injection; wind generation system; wind turbines; Capacitance; Controllability; Fuzzy logic; Observability; Power generation; Power system dynamics; Power system modeling; Power system stability; Power system transients; Wind energy generation; Transient stability; controllability gramian; critical clearing time;
Conference_Titel :
Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-3294-3
Electronic_ISBN :
978-88-89884-09-6
DOI :
10.1109/UPEC.2008.4651462
