Impact of Distributed Generation in Single area load frequency control on system frequency

Abstract

In Power system prime objective is to match both power generated at generation end with power demand at consumer side. However, with development need of consumer is changing load demand incessantly. So, there is a continuous need to monitor and fulfill the load demand. Any mismatch between Power demand and Power generation will affect the system frequency. In modern power system the inclusion of renewable energy sources (RES) has been in rise. The flexibility of installing RES opens up opportunities to energy producers and energy consumers to opt for energy transaction, from economical point of view. Apart from this RES area also associated with impact on existing power systems. In the present paper for load frequency control, isolated Power-System is modeled. The distributed generation has also been modeled and embedded into existing model to observe its impact on Power system Load frequency characteristics. In this paper firstly, Single area load frequency control (LFC) is considered using integral Controller. Secondly, Single area LFC is analyzed with Distributed generation (DG). In both the cases Impact on system frequency is observed using MATLAB Simulink and we get appropriate gain of PI controller and effect of increasing penetration level of DG on system frequency. Also frequency deviations area observed while introducing various controllers in single area LFC with and without DG embedded to the system.