Implementation of a controller for a static VAr compensator in large industrial networks

Abstract

This paper deals with the development of a control algorithm for reactive-power compensation, flicker compensation and voltage regulation in large, industrial networks. The concept of compensation with a static-var compensator (SVC) and control-algorithm verification with realistic simulation examples using an actual industrial-network model are presented. In this paper a new control algorithm for control SVC devices is proposed. With this controller the SVC devices can operate in three modes: reactive-power compensation, flicker-level compensation or voltage regulation. The advantages of the proposed controller compared to other known regulators are the better flicker-level compensation and cheaper installation, because it requires only one measurement location. The data obtained with the simulations showed that the proposed controller can be successfully used for the control SVC devices for the reduction of flicker levels, the compensation of reactive power and for the regulation of voltage levels in large industrial networks.