Design of robust digital set-point tracking controllers for linear multivariable plants with time-delayed inputs

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Design of robust digital set-point tracking controllers for linear multivariable plants with time-delayed inputs

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It is shown that, for a large class of linear multivariable plants with multiple time-delayed inputs, robust digital set-point tracking controllers can be readily designed. The general design methodolgy is based upon the asymptotic analysis of the closed-loop characteristic roots of digitally controlled plants for large sampling periods, and is illustrated by designing a robust digital set-point tracking controller for a boiler furnace with four inputs and four outputs.

Inspec keywords: multivariable control systems; control system synthesis; sampled data systems; digital control; furnaces; tracking systems; boilers

Other keywords: asymptotic analysis; linear multivariable plants; boiler furnace; digitally controlled plants; robust digital set-point tracking controllers; controller design; time-delayed inputs; closed-loop characteristic roots

Subjects: Multivariable control systems; Control system analysis and synthesis methods; Discrete control systems; Control of heat systems

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Corrigendum: Design of robust digital set-point tracking controllers for linear multivariable plants with time-delayed inputs