Kk. Shyu et al., Totally invariant state feedback controller for position control of synchronous reluctance motor, IEEE IND E, 48(3), 2001, pp. 615-624
A new totally invariant state feedback controller is designed by combining
the classical state feedback controller and the variable-structure control
(VSC), The combination of these two different control methods has the advan
tages of both their merits: 1) the easy design of the state feedback and 2)
the strong robustness of the VSC. In other words, the system performance c
an be simply designed for the nominal system by using the classical state f
eedback, which includes such well-known techniques as the pole placement or
the linear quadratic method. Then, VSC is used to ensure the control effec
t. To demonstrate the effectiveness of the totally invariant state feedback
controller, it is applied to the position control of a synchronous relucta
nce motor. Simulation results are first given. In addition, a prototype har
dware system is built and experimentally evaluated.