“…It is a very difficult task to control PMSM because PMSM is nonlinear system, multivariable and strongly coupled system. With development of modern nonlinear theories, many chaos control methods are researched (Nakashima et al, 2014;Chen and Dong, 1998;Adhikari et al, 2016). Some methods also are used to control chaotic PMSM (Wang, 2003;Kar and Mishra, 2012;Chen, 2006;Ren and Liu, 2014;Zribi et al, 2015;Jogendra et al, 2013;Freitas et al, 2016;Chen et al, 2013;Kraḧenbuḧl et al, 2011), such as OGY method, which method need find an adjustable parameter which is very complex.…”