Bumpless transfer between observer-based gain scheduled controllers

Bumpless Transfer Between Observer-Based Gain Scheduled Controllers

This paper deals with bumpless transfer between a number of observer-based controllers in a gain scheduling architecture. Linear observer-based controllers are designed for a number of linear approximations of a nonlinear system in a set of operating points, and gain scheduling control can subsequently be achieved by interpolating between each controller. The Youla-Jabr-Bongiorno-Kucera (YJBK) ...

Bumpless Switching Controllers

This paper outlines the design of bumpless switching controllers that can be used to stabilize MIMO plants which are both switching stabilizable and switching detectable. A primary feature of such controllers is that their order is no greater than that of the plant.

A velocity algorithm for the implementation of gain-scheduled controllers

A new method is proposed to implement gain-scheduled controllers for nonlinear plants. Given a family of linear feedback controllers designed for linearizations of a nonlinear plant about constant operating points, a nonlinear gain-scheduled controller is derived that preserves the input-output properties of the linear closed loop systems locally, about each equilibrium point. The key procedure...

Robust Control Design of Gain-scheduled Controllers for Nonlinear Processes

Reducing Conservatism for Gain-Scheduled H1 Controllers for AMB's

We address the problem of H 1 gain-scheduling of a magnetic bearing/rotor system with the speed of the rotor being the scheduling parameter. The rotor exhibits signiicant gyroscopics. As a result, the plant dynamics change with the rotor speed. Recent results in the theory of LPV systems can be used to design robust, gain-scheduled controllers for such a system. As opposed to traditional gain-s...