제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
권호 표지

A method of constructing fuzzy control rules for electric power systems

  • Ueda, Tomoyuki (Department of Electrical Engineering, Univ. of Osaka Prefecture) ;
  • Ishigame, Atsushi (Department of Electrical Engineering, Univ. of Osaka Prefecture) ;
  • Kawamoto, Shunji (Department of Electrical Engineering, Univ. of Osaka Prefecture) ;
  • Taniguchi, Tsuneo (Department of Electrical Engineering, Univ. of Osaka Prefecture)
  • Published : 1990.10.01
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Abstract

The paper presents a method of constructing simple fuzzy control rules for the determination of stabilizing signals of automatic voltage regulator and governor, which are controllers of electric power systems. Fuzzy control rules are simplified by considering a coordinate transformation with the rotation angle .theta. on the phase plane, and by expanding the range of membership functions. Also, two rotation angles .theta. $_{1}$ and .theta. $_{2}$ are selected for the linearizable region and the nonlinear one of the system, respectively. Here, .theta. $_{1}$ is chosen by the pole assignment method, and .theta. $_{2}$ by a performance index. Fuzzy inference is applied to the connection of two rotation angles .theta. $_{1}$ and .theta. $_{1}$ by regarding the distance from the desired equilibrium point as a variable of condition parts. The control effect is demonstrated by an application of the proposed method to one-machine infinite-bus power system.

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