“…Up until now, fractional order systems have been studied from different points of view such as stability analysis [5][6][7], controllability and observability [8][9][10], system identification [11][12][13][14], system representation [15,16], model approximation [17][18][19], dynamical behavior analysis [20,21], and so on. Moreover, fractional order controllers have been designed and used in many practical applications and it has been shown that in some applications this type of controllers is more efficient than the traditional integer order controllers [22][23][24][25].…”