Design of a static VAR compensator using model reference adaptive control
Journal
Electric Power Systems Research
Journal Volume
13
Journal Issue
2
Pages
129-138
Date Issued
1987
Author(s)
Cheng, C.-H.
Abstract
A novel approach for the design of a static VAR compensator (SVC) is proposed. The SVC, which comprises a fixed capacitor and a thyristor-controlled inductor, can be used to improve generator damping without deterioration in the voltage profile under severe disturbance conditions. In order to achieve better dynamic performance, a supplementary proportional-integral (PI) controller, of which the parameters are determined by eigenvalue assignment, is incorporated in the static VAR compensator. To further improve the damping characteristics over a wide range of operating conditions, an adaptive controller using model reference adaptive control (MRAC) is also developed. Results from the digital simulation of the system subject to a three-phase fault indicate that the MRAC can provide better dynamic performance than the fixed-gain PI controllers. © 1987.
SDGs
Type
journal article