Title :
Small signal stability performance of power system during high penetration of wind generation
Author :
Iswadi, H.R. ; Morrow, D. John ; Best, Robert J.
Author_Institution :
Energy Power & Intell. Control, Queen´s Univ. Belfast, Belfast, UK
Abstract :
The small signal stability of interconnected power systems is one of the important aspects that need to be investigated since the oscillations caused by this kind of instability have caused many incidents. With the increasing penetration of wind power in the power system, particularly doubly fed induction generator (DFIG), the impact on the power system small signal stability performance should be fully investigated. Because the DFIG wind turbine integration is through a fast action converter and associated control, it does not inherently participate in the electromechanical small signal oscillation. However, it influences the small signal stability by impacting active power flow paths in the network and replacing synchronous generators that have power system stabilizer (PSS). In this paper, the IEEE 39 bus test system has been used in the analysis. Furthermore, four study cases and several operation scenarios have been conducted and analysed. The selective eigenvalue Arnoldi/lanczos´s method is used to obtain the system eigenvalue in the range of frequency from 0.2 Hz to 2 Hz which is related to electromechanical oscillations. Results show that the integration of DFIG wind turbines in a system during several study cases and operation scenarios give different influence on small signal stability performance.
Keywords :
IEEE standards; asynchronous generators; busbars; eigenvalues and eigenfunctions; load flow; power system interconnection; power system transient stability; wind turbines; DFIG wind turbine integration; IEEE 39 bus test system; PSS; active power flow; doubly fed induction generator; eigenvalue Arnoldi-lanczos method; electromechanical oscillation; frequency 0.2 Hz to 2 Hz; power system interconnection small signal stability; power system stabilizer; wind power generation penetration; Damping; Oscillators; Power system stability; Stability criteria; Synchronous generators; Wind turbines; Arnoldi/Lanczos method; DFIG; DIgSILENT; eigenvalue analysis; power system operation; small signal stability; transient stability;
Conference_Titel :
Power Engineering Conference (UPEC), 2014 49th International Universities
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4799-6556-4
DOI :
10.1109/UPEC.2014.6934766