A Simplepole Clustering Technique for Dynamic Systems Simplification

A simple clustering technique is presented in this paper to simplify the dynamic system via reducing the order of its transfer function. The reduced denominator polynomial of thesimplified model is determined by a simple pole clustering technique and the numerator coefficients are obtained byusing improved Pade approximations method. The dominant pole of a cluster may be inside or outside of the pole cluster unlike modified pole clustering technique already suggested in the literature. The proposed method is computationally simple, efficient and can be easily programmed. The method is capable to retain transient, steady-state value and stability features of the original large-scale dynamic system. The viability of the proposed method has been tested on few high order systems.