Ecology, Environment and Conservation Paper

Vol 23, Sept. Suppl. Issue 2017; Page No.(276-281)

STABILITY ANALYSIS OF HYBRID THERMAL AND WIND ENERGY SYSTEM USING MODIFIED WATER CYCLE TUNED DUAL INPUT CONTROLLER

G. Suresh, R. Shivakumar and K. Krishnamoorthi

Abstract

Modern thermal and wind energy interconnected systems are experienced with low frequency inertial oscillations due to various disturbances in real time operation that affect the stability of the system. This paper deals with an effective approach to design a dual input optimal controller based on modified water cycle algorithm, to mitigate these oscillations. The proposed controller design is based on formulating a damping ratio based multi-objective optimization criterion to calculate the optimal controller parameters for system stability. The novel feature of this paper is to damp the inter-area oscillations in thermal and wind energy interconnected system using the proposed controller. Non-linear time domain based simulations have been carried out in test system under various operating conditions. The performance of the proposed controller is compared with performances of conventional lead lag controller and water cycle algorithm based controller.

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