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Wind turbine generator (WTG) and solar thermal power system (STPS) are growing field of renewable energy. These technologies are considered as the feasible options for the generation of electricity in future. However, the inclusion of these technologies affects the output power which intern affects the power frequency. Successful operation of a power system frequency requires frequency in operational limit, therefore, in this study a PID controller is designed for frequency control of a hybrid power system. Big bang big crunch (BBBC) optimization technique is used for determining the parameters of PID controller. The performance of controller has been checked with random variation of load demands. The obtained results demonstrate the effectiveness of the controller. Further, a comparative analysis of results obtained with BBBC has also been performed with genetic algorithm (GA) based controller. [ABSTRACT FROM AUTHOR]

In this paper, a deregulated LFC scheme is considered. For successful operation of LFC scheme, remote measurements are transmitted to control center consisting delays. The existence of delays affects the performance of frequency control scheme and at worst can causes instability. Therefore, a better control scheme the must encounter the effects of transmission/communication delays. In this study, a test system is considered by two-area thermal system. GA based PID controller has been designed to settle down the frequency deviations in prescribed limit at steady state. The performance of the proposed controller is evaluated under various communication delays. The obtained results show the validity and success of the designed controller. [ABSTRACT FROM AUTHOR]