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

fYear

2008

fDate

1-4 Sept. 2008

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/UPEC.2008.4651462

Filename

4651462