Fuzzy logic switching of thyristor controlled braking resistor considering coordination with SVC

Author

Hiyama, T. ; Mishiro, M. ; Kihara, H. ; Ortmeyer, T.H.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Kumamoto Univ., Japan

Volume

10

Issue

4

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

2020

Lastpage

2026

Abstract

This paper presents a new switching control scheme for braking resistors (BR) using fuzzy logic to enhance overall stability of electric power systems. In addition, the coordination with an SVC is also considered to achieve a wider stable region. The braking resistor is set on one of the generator busbars, where the real power output from the generator is measured to determine the firing-angle of the thyristor switch. The switching control scheme is simple so as not to require heavy computation on the microcomputer based switching controller. An SVC is set on one of the busbars in the system. The switching of the SVC uses a similar fuzzy logic control scheme to the one for the BR. Simulation results show the effectiveness of the proposed fuzzy logic switching control scheme

Keywords

flexible AC transmission systems; fuzzy control; microcomputer applications; power system control; power system stability; resistors; static VAr compensators; switching; thyristor applications; SVC coordination; busbars; firing-angle; fuzzy logic; fuzzy logic switching; generator busbars; microcomputer based switching controller; real power output; stability; switching control scheme; thyristor controlled braking resistor; thyristor switch; Control systems; Fuzzy logic; Microcomputers; Power generation; Power measurement; Power system stability; Resistors; Static VAr compensators; Switches; Thyristors;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.473348

Filename

473348