NDLI: Model-Free H-Infinity Load-Frequency Controller Design for Power Systems

Content Provider	IEEE Xplore Digital Library
Author	Al-Tamirni, A. Lewis, F.L. Wang, Y.
Copyright Year	2007
Description	Author affiliation: Univ. of Texas at Arlington, Fort Worth (Al-Tamirni, A.)
Abstract	In this paper, an H-infinity load-frequency controller for a power system generator will be designed without the knowledge of the system model. Uncertainty in the system model is a common problem in power systems. In this paper the strategies for discrete-time linear system quadratic zero-sum games related to the H-infinity optimal control problem are solved forward in time without knowing the system dynamical model. The idea is to solve for an action dependent value function Q(x,u,w) of the zero-sum game instead of solving for the state dependent value function V(x) which satisfies a corresponding game algebraic Riccati equation (GARE). The result is model-free approach that solves the zero-sum game forward in time; i.e. it finds an H-infinity controller without knowing the dynamical system. It is proven that the algorithm is equivalent to a model-free iterative algorithm to solve the underlying (GARE) of the linear quadratic discrete-time zero-sum game.
Starting Page	118
Ending Page	125
File Size	447378
Page Count	8
File Format	PDF
ISBN	9781424404407
ISSN	21589860
DOI	10.1109/ISIC.2007.4450871
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-01
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system modeling Load modeling H infinity control Power system control Riccati equations Iterative algorithms Power generation Uncertainty Power system dynamics Linear systems Adaptive control Adaptive critics Approximate dynamic programming Zero-sum games Policy iterations H¿ optimal control Q-function Q-learning
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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