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Efficient tuning of...
Efficient tuning of linear multivariable controllers using iterative feedback tuning
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- Hjalmarsson, Håkan, 1962- (author)
- KTH,Signaler, sensorer och system,Reglerteknik, Automatic Control
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(creator_code:org_t)
- 1999
- 1999
- English.
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In: International journal of adaptive control and signal processing (Print). - 0890-6327 .- 1099-1115. ; 13:7, s. 553-572
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Iterative feedback tuning is a direct tuning method using closed-loop experimental data. The method is based on numerical optimization and in each iteration an unbiased gradient estimate is used. Due to these unbiased gradient estimates, the method converges to a stationary point of the control criterion provided the closed loop signals remain bounded throughout the iterations. In this contribution, it is shown how such unbiased estimates can be obtained for multivariable linear time-invariant systems. Particular attention is given to the issue of keeping the experiment time to a minimum and several efficient algorithms are presented. It is shown that, for tuning an arbitrary linear time-invariant multivariable controller with nw inputs and nu outputs, 1+nu×nw experiments are sufficient in each iteration of the algorithm. For disturbance rejection, an alternative algorithm is proposed which requires nu+nw experiments. As an illustration, the method is applied to a simulation model of a gas turbine engine.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
Keyword
- Algorithms
- Closed loop control systems
- Convergence of numerical methods
- Feedback control
- Iterative methods
- Linear control systems
- Tuning
- Iterative feedback tuning
- Linear multivariable controllers
- Multivariable control systems
- SRA - ICT
- SRA - Informations- och kommunikationsteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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