eng Science and Education Publishing American Journal of Electrical and Electronic Engineering 2328-7357 2018-07-26 6 3 77 84 10.12691/ajeee-6-3-1 AJEEE2018631 article D. K. Sambariya dsambariya_2003@yahoo.com 1 Tarun Gupta 1 Department of Electrical Engineering, Rajasthan Technical University, Kota, India Representation of physical system using mathematical models leads the process to high-order equations, which are difficult to use for analysis and synthesis. Therefore, it is necessary and useful to find the reduced order equations that describe the same characteristics as the original high-order system. This paper proposes a nature inspired flower pollination algorithm (FPA) for order reduction of original high-order linear time invariant systems. Reduced model will definitely be stable if the original model is stable. Four numerical examples of single-input and single-output systems of different orders are considered to verifying proposed method. The results are compared with different methods available in literature based on step response and performance indices. http://pubs.sciepub.com/ajeee/6/3/1/ajeee-6-3-1.pdf flower pollination algorithm (FPA) single-input single-output (SISO) reduced order model (ROM) model order reduction (MOR)