Voltage control using a combined integer linear programming and rule-based approach

Author

Hsu, Yuan-Yih ; Ho, Kun-Long ; Liang, Chih-Chien ; Lai, Tsau-Shin ; Chen, Kung-Keng ; Chang, Biao-Sheng

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

7

Issue

2

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

744

Lastpage

752

Abstract

An expert system which combines operators´ dispatching rules and the integer linear programming (LP) routine is designed for voltage control of the Taiwan Power Company. To reach the control actions at one time and to avoid the need of rounding off the control actions for capacitors/inductors and transformer taps, the efficient integer LP routine is developed using the branch-and-bound algorithm. The operators´ heuristic rules and sensitivity factors are used to reduce the number of variables and constraints in the integer LP formulation in order to reduce the computational time and to make the approach feasible in real-time situations. The expert system was applied to correct abnormal voltages during emergency conditions. It was found that the proposed expert system is a valuable aid to system operators for voltage control

Keywords

expert systems; integer programming; linear programming; load dispatching; optimal control; power system computer control; real-time systems; voltage control; Taiwan; algorithm; capacitors; emergency conditions; expert system; heuristic rules; inductors; integer linear programming; load dispatching; power system computer control; real-time; rule-based approach; sensitivity factors; transformer taps; voltage control; Artificial intelligence; Capacitors; Control systems; Expert systems; Inductors; Integer linear programming; Power system management; Power systems; Reactive power; Voltage control;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.141781

Filename

141781