Introduction of Secondary Frequency Control in Indian Power System

Secondary frequency control has been introduced through Automatic Generation Control (AGC) in India in 2018 on a pilot basis. This paper elaborates the various steps that were involved in the introduction of secondary frequency control. Details of the important resources identified for the implementation of AGC at load despatch centre and at power plants are elaborated. Regulatory framework evolved around secondary frequency control is discussed. The authors also present the core ideas around secondary frequency control and its future in India.