Essays about: "variable pitch"

Showing result 11 - 15 of 19 essays containing the words variable pitch.

  1. 11. Modelling and control of large wind turbine

    University essay from Avdelningen för fysik och elektroteknik

    Author : syed hammad zafar; [2013]
    Keywords : ;

    Abstract : In order to make the wind energy an economical alternative for energy production, upscaling of turbine to 10 - 15MW may be necessary to reduce the overall cost of energy production. This production target requires a considerable increase in the turbine size and placing the turbines at high wind speed locations. READ MORE

  3. 12. Stability Prediction of Multiple-Teeth Boring Operations

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Amir Parsian; [2013]
    Keywords : Stability; Chatter vibration; Multiple-teeth boring; Variable pitch;

    Abstract : In many metal cutting operations, the relative displacement between the tool and the workpiece, determines the surface finish and the dimensional quality of the product. In an unstable operation, this relative displacement becomes bigger in an uncontrolled way and affects the cutting process. READ MORE

  4. 13. LQG-control of a Vertical Axis Wind Turbine with Focus on Torsional Vibrations

    University essay from Avdelningen för systemteknik

    Author : Adam Alverbäck; [2012]
    Keywords : LQG-control; Vertical axis wind turbine; torsional oscillations;

    Abstract : In this thesis it has been investigated if LQG control could be used to mitigate torsional oscillations in a variable speed, fixed pitch wind turbine. The wind turbine is a vertical axis wind turbine with a 40 m tall axis that is connected to a generator. READ MORE

  5. 14. Laser Music System : Implemented using lasers, infrared sensors, photocells and a Arduino Microcontroller

    University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Author : Astra Woodruff; Burak Görmez; [2012]
    Keywords : laser system; electronic instrument; microcontroller; IR range sensors; laser diodes; photocells; detector circuit; MIDI; triangulation;

    Abstract : A Laser Music System has been created, that combines a laser and light sensor system with an infrared distance sensing system that detects the position of a user’s hand when it intersects one or more of the individual laser beam. The laser beams, which are made visible by a small amount of smoke in a dark room, provide visual guidance to the user to reduce the difficulty of using a non-contact instrument as well as enhancing an appealing optical effect for the user. READ MORE

  6. 15. Design of a Permanent Magnet Synchronous Generator for a Vertical Axis Wind Turbine

    University essay from KTH/Elektrisk energiomvandling

    Author : Nima Madani; [2011]
    Keywords : ;

    Abstract : Different types of permanent magnet generators for wind power application have been subject of research during last two decades. In this thesis different topologies of electrical generators have been investigated for small scale vertical axis wind turbine application. READ MORE