Nicely Nonlinear LQ-based Control is a novel three-stages technique to easily get a sub-optimal solution to the infinite horizon standard regulation problem for nonlinear systems. It approximates the plant with its second order-truncated Taylor series (stage I), operates a feedback linearization on the resulting linear-quadratic model (stage II) and, then, for the linearized system, solves a classical infinite horizon LQ optimal tracking problem (stage III). As a preliminary step, it is proved in the following that such a control scheme guarantees local exponential stability for class C2 affine systems. Nicely Nonlinear LQ-based Control is then applied in simulation to regulate a DC/AC converter on a fixed reference set-point and its performances are compared with the classical LQ strategy.
Titolo: | Nicely Nonlinear LQ-based Control | |
Autori interni: | ||
Data di pubblicazione: | 2009 | |
Handle: | http://hdl.handle.net/20.500.12070/10891 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |