WSEAS Transactions on Systems and Control
Print ISSN: 1991-8763, E-ISSN: 2224-2856
Volume 10, 2015
An Enhanced PID-PSS Based Robust Frequency H2 and H∞ Approachs under a Developed interface
Authors: , ,
Abstract: This article present a comparative study between two advanced robust frequency control strategies and their implementation using our created Graphical User Interface (GUI) under MATLAB: the first method based on loopshaping H∞ optimization technique and the second on robust H2 control method (LQG controller associated with KALMAN filter), and applied on automatic excitation control of synchronous generators, to improve transient stability and robustness of a single machine- infinite bus (SMIB) system operating in different several conditions. The computer simulation results (static and dynamic stability), with test of robustness against machine parameters uncertainty (electric and mechanic), have proved that good dynamic performances, showing a stable system responses almost insensitive to large parameters variations, and more robustness using robust H∞ controller in comparison with H2 approach by exploiting our developed GUI interface in this work.
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Keywords: Synchronous machines and Excitations, AVR and PSS, advanced frequency control techniques, LQG control, Kalman filter, robust loop-shaping H∞ approach, stability and robustness, GUI/MATLAB
Pages: 531-538
WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 10, 2015, Art. #58