Quantitative Feedback Control of Multiple Input Single Output Systems

Javier Rico-Azagra, Montserrat Gil-Martínez and Jorge Elso

Mathematical Problems in Engineering, 2014, vol. 2014, 1-17

Abstract:

This paper presents a robust feedback control solution for systems with multiple manipulated inputs and a single measurable output. A structure of parallel controllers achieves robust stability and robust disturbance rejection. Each controller uses the least possible amount of feedback at each frequency. The controller design is carried out in the Quantitative Feedback Theory framework. The method pursues a smart load sharing along the frequency spectrum, where each branch must either collaborate in the control task or be inhibited at each frequency. This reduces useless fatigue and saturation risk of actuators. Different examples illustrate the ability to deal with complex control problems that current MISO methodologies cannot solve. Main control challenges arise due to the uncertainty of plant and disturbance models and when a fast-slow hierarchy of plants cannot be uniquely established.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:136497

DOI: 10.1155/2014/136497

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