engleski

Robust Reduced-Order Controllers for Dynamical Systems

In this paper we present simulation results on design of Robust Reduced-order controllers for dynamical systems. On dynamical systems, reduced order controllers are less expensive to implement than full state variable feedback (SVFB). In a real situation, it is often not possible to measure the whole state vector for the feedback. Moreover, reduced order controllers preserve the desirable structure of the control system. Reduced order controllers can also be employed as back-up controllers, i.e. as controllers which are not active during the regular operation, but which are used in the case of faults. For this reason back-up controllers have to be as simple as possible. Issues of importance to the design of practical reduced order controllers include (i) on-line computational simplicity, (ii) ability to operate solely with available measurable quantities, and (iii) design and implementability in a short time. However, implementation recommendations and simulation results on industry-like test beds are rarely published in the research literature. In this paper we offer a design procedure, which addresses the above issues. The procedure described in this paper allows one to achieve disturbance attenuation and control with prescribed performance at the same time.

Robust Reduced-Order Controllers; Dynamical Systems

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