Application of self-tuning FPIC to AGC for Load Frequency Control in wind farm interconnected large power system

In this paper, the influence of a Superconducting Magnetic Energy Storage (SMES) unit on the performance of the Automatic Generation Control (AGC) is investigated. In which, the self-tuning Fuzzy PI Controller (FPIC) associated with the Automatic Generation Control (AGC) is proposed for the improvement of Load Frequency Control (LFC) in wind farm integrated large power system consisting of thermal and hydro power plants. The effects of the self-tuning FPIC in AGC on SMES control is compared with that of optimized fixed gain PI controlled AGC. The computer simulation of the two-area interconnected power system shows that the self-tuning fuzzy PI control scheme of AGC is very effective for SMES control to damp out of the oscillations caused by load disturbances in one or both of the areas and it is also seen that the proposed controlled AGC including SMES performs more effective primary frequency control compared to optimized fixed gain PI controlled AGC including SMES.