Title :
A comparison of novel optimal fuzzy and LMI based wide area controller for stability enhancement with STATCOM
Author :
Ganesh, Aman ; Dahiya, Ratna ; Singh, G.K.
Author_Institution :
Dept. of Electr. Eng., NIT Kurukshetra, Kurukshetra, India
Abstract :
This paper presents a fuzzy damping control design for damping swing mode in a power system model using global stabilizing signals. The controller supplements the STATCOM installed in the power system for voltage regulation and dynamic voltage control. The selection of the input signal for the proposed controller from the available global signal is based on modal analysis of the selected power system by employing eigenvalue sensitivity analysis and the output of the controller provides reference for the voltage controller of the STATCOM. The proposed optimal fuzzy supplementary controller is synthesized on mixed sensitivity formulation resolved by linear matrix inequality enhances the angular stability of the power system at multiple operating points. The performance of the proposed controller is compared against robust control scheme based on Linear Matrix Inequality (LMI) on a 11-bus four machine system.
Keywords :
control system synthesis; damping; eigenvalues and eigenfunctions; fuzzy control; linear matrix inequalities; modal analysis; optimal control; power system simulation; robust control; sensitivity analysis; static VAr compensators; voltage control; 11-bus four machine system; LMI based wide area controller; STATCOM; angular stability; damping swing mode; dynamic voltage control; eigenvalue sensitivity analysis; fuzzy damping control design; global signal; global stabilizing signal; linear matrix inequality; mixed sensitivity formulation; modal analysis; optimal fuzzy controller; optimal fuzzy supplementary controller; power system model; robust control scheme; stability enhancement; voltage controller; voltage regulation; Automatic voltage control; Damping; Generators; Oscillators; Power system stability; Stability analysis; STATCOM; fuzzy controller; interarea oscillations; linear matrix inequality; robust control; wide area control;
Conference_Titel :
Engineering and Computational Sciences (RAECS), 2014 Recent Advances in
Conference_Location :
Chandigarh
Print_ISBN :
978-1-4799-2290-1
DOI :
10.1109/RAECS.2014.6799588
