Nonlinear Analysis and Control of a Continuous Fermentation Process

摘要

Nonlinear controllers of different type: feedback linearization with pole-placement controller and two versions of Hamiltonian controllers, together with an LQR controller are designed and compared for a simple fermentor near an optimal production operating point which is close to its fold bifurcation point. The performance analysis is based on simulation studies and on investigating the stability region of the controllers. The partial Hamiltonian controller is recommended for this case which has wide and predictable operating region, robustness and uses the measurable state variable only.