Design of Luenberger-Type Observers for Damping of Power System Oscillations

The design of full and minimal-order Luenberger-type observers for asymptotically estimating the states of a single machine infinite bus power system is presented. The estimator uses the system output to provide the estimates of the state information and implements the optimal state feedback control...

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Bibliographic Details
Published in:	2019 IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT) pp. 1 - 6
Main Authors:	Angu, Rittu, Mehta, R.K.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-02-2019
Subjects:	Damping Matlab Observers optimal control law Oscillators Power system stability single machine infinite bus State feedback state observer symmetric root locus
Online Access:	Get full text
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Summary:	The design of full and minimal-order Luenberger-type observers for asymptotically estimating the states of a single machine infinite bus power system is presented. The estimator uses the system output to provide the estimates of the state information and implements the optimal state feedback control strategy to provide the necessary stabilization and damping to the power system oscillations. The closed-loop pole locations in s-plane are arranged based on symmetrical root locus technique upon the minimization of a quadratic performance index. The observer poles are also placed such that the observer states tracks the system state faster. Computer simulation of two test controllers shows satisfactory performance over wide range of operating conditions.
DOI:	10.1109/ICECCT.2019.8869003