“…The fuzzy control technique, which has a simple design and robust performance characteristics, has been successfully applied in the control of various systems, particularly those with model uncertainty, unknown disturbance and nonlinear dynamics (Eker and Torun, 2006;Özbek and Efe, 2010). Up to now various applications have been reported (Bai et al, 2016;Rajaraajeswari et al, 2017;Xiao et al, 2017). Recently, the fractional controller has been quite often combined with fuzzy logic (Das et al, 2013;Pan and Das, 2016;Sharma et al, 2016).…”