Abstract
In this paper an attempt is made to design the regulator for automatic generation control (AGC) of an interconnected energy delivery system to regulate the frequency and tie-power to original value for sudden change in the energy demand of the customers. The considered energy delivery system is having the power generation via thermal, hydro and gas sources and connected via means of parallel AC/DC tie-lines. Further, most of AGC studies focussed on regulator design using application of control theory such as optimal control to manage the balance between generation and load demand considering all system states. However, inreality it is hard enough to measure all system states and design effective regulator for AGC action. Hence in this paper efforts are made to design regulator for AGC problem using few states which are easily measurable and available in real situation of the system i.e. output vector feedback. The feasibility & stability of proposed AGC is tested for 1% change in power demand and compared with optimal AGC which is based on all system states using obtained system responses, feedback gains of control as well as closed loop eigenvalues.
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