Search for dissertations about: "control frequency and power"

Showing result 1 - 5 of 281 swedish dissertations containing the words control frequency and power.

  1. 1. Field Programmable Gate Arrays and Reconfigurable Computing in Automatic Control

    Author : Carl Wilhelmsson; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems analysis; FPGA; Field Programmable Gate Array; programming; Compendex: Field programmable gate arrays FPGA ; programming environments; computer science; programmable controllers; observers; adaptive control; modelling; closed loop systems; logic CAD; control systems; reconfigurable architectures; field programmable gate arrays; Computer Programming; telecommunication control; Control system applications; Real time control; Computer control systems; Control systems; Engine Control; Heat release analysis; Cylinder pressure; power-train control; Vehicle control; High speed; Rapid Prototyping; Combustion control; Automotive control; Control application; High frequency; Computer control; Feedback Control; Closed loop systems; Control; Reconfigurable computing; Reconfigurable hardware; VLSI; Closed loop control; programmable logic arrays; Automatic Control; System on Chip SoC ;

    Abstract : New combustion engine principles increase the demands on feedback combustion control, at the same time economical considerations currently enforce the usage of low-end control hardware limiting implementation possibilities. Significant development is simultaneously and continuously carried out within the field of Field Programmable Gate Arrays (FPGAs). READ MORE

  2. 2. The Frequency of the Frequency On Hydropower and Grid Frequency Control

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Linn Saarinen; Urban Lundin; Per Norrlund; Bengt Carlsson; Kjetil Uhlen; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydropower; frequency control; governors; power system stability; inertia; primary control; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Abstract : Variations in the electricity consumption and production connected to the power system have to be balanced by active control. Hydropower is the most important balancing resource in the Nordic system, and will become even more important as the share of variable renewable energy sources increases. READ MORE

  3. 3. On Modeling and Control of Flexible Manipulators

    University dissertation from Institutionen för systemteknik

    Author : Stig Moberg; Svante Gunnarsson; Anders Robertsson; [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

  4. 4. Voltage sag ride-through of AC drives control and analysis

    University dissertation from Stockholm : KTH

    Author : Kai Pietiläinen; Hans-Peter Nee; Olli Pyrhönen; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Electrical engineering; electronics and photonics Electronic measurement and instrumentation; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronisk mät- och apparatteknik;

    Abstract : This thesis focuses on controller design and analysis for induction motor (IM) drives, flux control for electrically excited synchronous motors with damper windings (EESMs), and to enhance voltage sag ride-through ability and analysis for a wind turbine application with a full-power grid-connected active rectifier. The goal is to be able to use the existing equipment, without altering the hardware. READ MORE

  5. 5. Extremum Seeking Control Stability, Accuracy, and Applications

    University dissertation from Luleå tekniska universitet

    Author : Khalid Atta; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : In many applications, there is a variable that indicates the overall performance and that must be maximized, such as the output of a hydro power turbine or a mineral processing plant, or that must be minimized, such as CO2 emissions or the consumption of resources. Extremization of this variable (maximization or minimization) through adjusting the influencing manipulated variables is occasionally required without prior knowledge of the optimal values of the manipulated variables or of the optimized variable. READ MORE