Abstract
In this paper, iterative linear matrix inequalities (ILMI) algorithm based design of decentralized controller for load frequency control (LFC) is proposed. The ILMI algorithm is used to tune the control parameters of the proportional-integral-derivative (PID) controller subject to H∞ constraints in terms of ILMI. Hence, the control design is called IPIDH∞ controller. The proposed controller is tested on a two-area interconnected power system considering reheat type turbine in both area with different load scenarios. The results of the proposed controller are compared with the H∞-controller. From the simulation results, the proposed controller is superior to H∞-controller.
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