BF based integral controller for AGC of multiarea thermal system under deregulated environment

In this paper, three equal areas are considered. This paper deals with the results of the dynamic performance of frequency control as well as tie line power, for automatic generation control (AGC) in thermal based three-area power system under deregulated environment, based on Bacterial Foraging (BF) optimization technique. In three-area, area 1 consist of two DISCOs and two GENCOs, area 2 consist of one GENCO and two DISCOs and area 3 consist of two DISCOs and three GENCOs. In this each area include steam turbine. Different kinds of ancillary services are present in power system. Amongst these services Load Frequency Control (LFC) is present under the deregulated power system. In this paper, the concept of Disco participation matrix (DPM) is used to simulate the bilateral contracts in three area AGC model. Integral gain is optimized by the Bacterial foraging (BF) optimization technique.