Adaptive Sliding Mode Control of MEMS AC Voltage Reference Source

Figure 4

Tracking performance comparison between adaptive sliding mode controller and pole-placement state feedback one, both being susceptible to various malfunctioning effects: (a) tracking performance of adaptive sliding mode controller considering divergence of the real values of stiffness and damping factors from the nominal ones; (b) tracking performance of pole-placement state feedback controller considering divergence of the real values of stiffness and damping factors from the nominal ones; (c) tracking performance in adaptive sliding mode controller when it is susceptible to parameter uncertainty and variation; (d) tracking performance of pole-placement state feedback controller being susceptible to parameter uncertainty and variation.

(a)

(b)

(c)

(d)