NDLI: Nonlinear output stabilization control for multimachine power systems

Content Provider	IEEE Xplore Digital Library
Author	Guoxiao Guo Youyi Wang Hill, D.J.
Copyright Year	1992
Abstract	In this paper, a robust decentralized nonlinear control scheme is proposed for multimachine power system stability enhancement. The nonlinear controller consists of a novel dynamic direct feedback linearization (DFL) compensator through the excitation loop to cancel the nonlinearities and interactions among generators and a robust feedback controller to guarantee the asymptotic stability of the DFL compensated system considering the effects of dynamic output feedback and plant parametric uncertainties. The decentralized controller for each generator in the multimachine system is obtained by solving an algebraic Riccati equation. The nonlinear controller can guarantee the stability of the multimachine nonlinear power system within a whole operating region for all admissible parameters. The design procedure is tested on a three-machine power system. Simulation results show that the proposed control scheme can greatly enhance the stability of the system, regardless of the network parameters, operating points, and fault locations.
Starting Page	46
Ending Page	53
Page Count	8
File Size	184695
File Format	PDF
ISSN	10577122
Volume Number	47
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-01-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system stability Control systems Nonlinear control systems Power system dynamics Power system simulation Robust control Robust stability Nonlinear dynamical systems Output feedback Riccati equations
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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