SSRG International Journals
A load frequency control is important in electrical power system design and operation. Due to unexpected large power consumption in industries and other sectors, power deficiency fulfillment is great task to be accomplished for the generation side. So to make counter balance for generation and expected demand, load frequency control is used. For the reliable operation of a large interconnected power system an Automatic Generation Control (AGC) is required; its main role is to maintain the system frequency and to maintain the tie line flow at their scheduled values during normal period in an interconnected system.