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Multi area load frequency control of power system involving renewable and non-renewable energy sources

Due to the increase in population and industrial growth, the need for power generation also increases. But generation of power using conventional sources is not at all sufficient to meet the increased load demand. So generation of power using renewable sources like Wind, Hydro, Solar and biogas … etc. is also going on increasing. But generation of power by these sources cannot be controlled unlike thermal power plants. The irregular nature of these sources increases the frequency deviations caused by load variation. Therefore, in this paper Load frequency control (LFC) including PI, PID and Fuzzy Controllers is proposed in order to minimize frequency deviations, tie line power interchange and to ensure steady state errors to be zero involving renewable and non-renewable energy sources.