Then, the additional uncertainty arising from discarding the spillover dynamics is taken into account by evaluating the effect on the controller robustness of the introduction of a reduced-order state observer.
The effect of the controllers is also studied in the Nyquist and root locus contexts.
Finally, the performance on each controller has been compared to show the effect of the controllers on transient response.
Simulations of the model system (controllers, animal and food) are employed to investigate the effect of the controllers on short-term stability and transient behavior.
As an example we consider a case study for a simple network with two routes and use a simple linear outflow controller, which makes the analytical investigation of the effects of the controller possible, but the results can be extended to more sophisticated control methods.
The Bode plots have been drawn to investigate the influence of the dominant roots of the characteristic equation to the inhibition effects of the controller, which determine the PI parameters by the selected values of the damping ratio, natural frequency and the normal number.
The effect of varying the controller gain and the flow velocity on the system performance was determined in the frequency domain.
