Analysis of Multi Area Load Frequency Control under Bilateral Market Incorporating Renewable Energy Source

Over the last decade, deregulation has resulted in numerous variations in the power industry. One of the main goals of reformation is to promote privatization. This has resulted in numerous independent power producers to collaborate while employing renewable energy sources. The reformed structure introduces market where power transactions are performed. Under bilateral market, the power is traded between the buyers and sellers based on the agreement. Each generating unit schedules or re-schedules its generation to fulfil the contracted or violated power respectively, with the help of load frequency control. This paper analyses the performance of load frequency control of a thermal and solar thermal integrated two area power system operating under bilateral market. The performance analysis is done using the transfer function model of multi area deregulated power system. The load frequency control is operated under tie line bias control technique. The generating units and transmission line powers are analyzed during contract and violation. Various case studies that include participation of single and multiple generating units to compensate for the contract violation are conducted. The effective performance of load frequency control in a hybrid source bilateral model is validated through case studies.