WSEAS Transactions on Power Systems
Print ISSN: 1790-5060, E-ISSN: 2224-350X
Volume 9, 2014
Modelling of Fixed Speed Squirrel Cage Induction Generators for Small Signal Stability Assessment
Authors: , ,
Abstract: Fixed speed squirrel cage induction generators (FSIG) for the wind power generations have been widely used worldwide due to its salient features like cost effectiveness, simplicity and robustness. It takes utmost importance to analyse their impact on power system stability as their penetration levels are continuously increasing. The state space approach is presented to analyse both small signal and transient stability by developing a mathematical model of full order squirrel cage induction generator. The small signal behaviour of FSIG has been studied for both one-mass and two-mass model representation of drive train. The eigenvalue and participation factor analysis for developed state space model of FSIG connected to infinite bus are carried out to identify the nature of modes of oscillations under different operating conditions such as varying wind speed and grid strength. The transient analyses are also presented to investigate the capability of FSIG to satisfy the Grid Code requirements.
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Keywords: Fixed Speed Induction Generator, Drive Train, Eigenvalue Analysis, Small Signal Stability, Fault Ride Through
Pages: 360-375
WSEAS Transactions on Power Systems, ISSN / E-ISSN: 1790-5060 / 2224-350X, Volume 9, 2014, Art. #37