Peak-seeking controller

The heart of a peak-seeking controller is a one-way storage device it accepts only increasing inputs. This function can be performed by a capacitor charged through a diode, as shown in Fig. 6.25. In an optimizing control system, the difference between the input, and output of the... 

Mamzic, C. L. Peak-seeking Optimizers, Instruments unA Control Systems, October,... 

The third class of techniques include a frequency-domain method based on the identification of the sensitivity function S s)) and the complementary sensitivity function T s)) from plant data or CPM of multivariable systems [140]. Robust control system design methods seek to maximize closed-loop performance subject to specifications for bandwidth and peak... 

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Good disturbance rejection can be achieved for a feedrate increase. For the EtAc and IPAc systems (type II flowsheet), little difference in the speed of response, peak error, and steady-state offsets are observed (Figs, 3.6b, 13.6c, 3. 2b, and 13.12c). Thus, there is little incentive to seek composition control for the type II flowsheet. For the BuAc system, good control performance is possible using composition control. The... 

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