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Corresponding Author

Ghali, Fadia

Subject Area

Electronics and Communication Engineering

Article Type

Original Study

Abstract

The concept of producing electric energy utilizing the energy embedded in wind is a real practice on a wide scale. Al different locations where wind potential is so promising, the energy planer is talking about wind parks connected to existing utilities. The extension of interconnected utilities with non-conventional plants should be investigated regarding different topics; among which is the stability of the hybrid system under expected operating conditions. In this paper, the stability problem is investigated using the decomposition aggregation technique. Attempts to overcome some of the drawbacks given in other methods have led to the application of the new technique based on Bellman's concept of vector Lyapunov function. An advanced approach is proposed in this work; triple-wise decomposition aggregation for multi-machines hybrid power system considering the transfer conductance and uniform damping. For this algorithm the system is decomposed into (n-1)/2 three-machine subsystems for odd number of machines, or (1-2)/2 three machine plus one two-machine subsystems for even number of machines. Six non-linearities are considered for each free subsystem. The domain of attraction is estimated to study the effect of introducing non-conventional energy source.

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