Furthermore, various control methods for SPMSM are
proposed in the literature. A conventional method is the
Proportional-Integral (PI) control combined with anti-windup
techniques for dealing with the corresponding physical limits
[9]. Another approach is the backstepping method proposed in
[10]. This work deals with the current constraints by switching
the reference speed. In [11], the Interconnection and Damping
Assignment Passivity-Based Control (IDA-PBC), which is
an energy-based control method used mainly for nonlinear
systems, was applied for the control of PMSM [12]. However,
this approach does not handle very well the constraints. Several
research works make use of Model Predictive Control (MPC)
which deals naturally with the system constraints [13]. In [14],
some simplified dynamic models for the SPMSM machine are
used within a predictive control framework.