Impact of UI Rate on Automatic Generation Controller of Participating Generators under Frequency Linked Tariff System

Abstract

In Indian deregulated market scenario redespatching of the generating units is made through frequency linked pricing signal known as Unscheduled Interchange(UI).Central Electricity Regulation Commission (CERC-India) is responsible for deciding the UI rates for unscheduled interchange interstate transmission of electricity. In this paper a maiden attempt has been made to perceive the effect of UI rate declared by CERC in different years on frequency linked Price Based Automatic Generation Control (PBAGC) of participating generators and profit earned by them. This article also covers the case of sudden loss of large generation to see whether the PBAGC control can handle such event or not