Search for dissertations about: "feedforward control"

Showing result 1 - 5 of 44 swedish dissertations containing the words feedforward control.

  1. 1. On Feedforward Adaptation

    University dissertation from Chalmers University of Technology

    Author : Magnus Nilsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Automatic control; feedforward; adaptive; control;

    Abstract : Adaptation of a feedforward term in a two-degrees-of-freedom servo controller for single-input single-output systems is investigated in this thesis. The first part ofthe thesis gives a clarifying analysis of feedback-error learning in a linear and time-invariant framework. READ MORE

  2. 2. Modeling and Control of the Paper Machine Drying Section

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Ola Slätteke; Lunds universitet.; Lund University.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reglerteknik; robotteknik; Automatiska system; Moisture control; Paper-making; Pressure control; Predictive Control; Mid-ranging Control; Wood; Drying Section Modeling; Automation; control engineering; robotics; pulp and paper technology; Pappers- och massateknik;

    Abstract : The topic of this thesis is modeling and control of the last part of the paper machine - the drying section. Paper is dried by letting it pass through a series of steam heated cylinders and the evaporation is thus powered by the latent heat of vaporization of the steam. READ MORE

  3. 3. Linear Quadratic Gaussian Controllers for Feedforward Active Noise Control : Pushing Performance and Moving Towards Adaptive Control

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Annea Barkefors; Uppsala universitet.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active noise control; ANC; LQG; feedforward control; sound field control; Elektroteknik med inriktning mot reglerteknik; Electrical Engineering with specialization in Automatic Control;

    Abstract : Active noise control is a research area focused on using destructive interference of sound fields to attenuate undesired noise. Methods for active noise control are best suited for low frequency noise, as the complexity of the problem grows rapidly with frequency. READ MORE

  4. 4. On Modeling and Control of Flexible Manipulators

    University dissertation from Institutionen för systemteknik

    Author : Stig Moberg; Linköpings universitet.; Linköpings universitet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System identification; multivariable systems; differential-algebraic equations; robots; manipulators; flexible structures; robustness; position control; nonlinear systems; closed-loop identification; frequency-response methods; industrial robots; robotics; control; feedforward; flexible arms; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik;

    Abstract : Industrial robot manipulators are general-purpose machines used for industrial automation in order to increase productivity, flexibility, and quality. Other reasons for using industrial robots are cost saving, and elimination of heavy and health-hazardous work. READ MORE

  5. 5. Fixed-Feedback SISO Adaptive Control

    University dissertation from Chalmers University of Technology

    Author : Magnus Nilsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Automatic control; Adaptive Control; Feedforward Control; Two-Degrees-of-Freedom Control;

    Abstract : Adaptive control is an attractive method to solve control problems since the tedious task of identifying process behavior to find a suitable design for the controller is taken care of by the adaptive controller itself. It may be difficult, however, to guarantee robustness (in the sense of desired disturbance attenuation and stability margins) for traditional adaptive schemes since their corresponding loop gain is time varying. READ MORE