Search for dissertations about: "drives"

Showing result 1 - 5 of 248 swedish dissertations containing the word drives.

  1. 1. On Rolling Variators, A study of power transmitting rolling variators when changing speed ratio

    Author : Göran Brännare; Chalmers tekniska högskola.; Chalmers University of Technology.; [1986]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; continously variable transmissions; CVT; friction drives; rolling contact drives; rolling traction trnasmissions; speed ratio change; traction; traction drives; transmission ratio change; variators;

    Abstract : The introduction of the concept Rolling Variators is proposed for rolling contact continuously variable transmission. A theoretical study of rolling variators when changing the speed ratio during power transmission is presented. READ MORE

  2. 2. Harmonic Mitigation in Traction Drives

    University dissertation from Department of Industrial Electrical Engineering and Automation, Lund Institute of Technology

    Author : Hans Bängtsson; Lunds universitet.; Lund University.; [1999]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydraulics; Mechanical engineering; converter; line interference; track circuit; Railway signalling system; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

    Abstract : Popular Abstract in Swedish Hos järnvägsfordon ger den låga friktionen mellan hjul och räls upphov till långa bromssträckor, i allmänhet längre än lokförarens siktsträcka. Om föraren påbörjar en inbromsning först när han ser ett hinder på spåret kan det vara för sent. READ MORE

  3. 3. On harmonic distortion in power systems

    University dissertation from Chalmers University of Technology

    Author : Johan Lundquist; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; harmonic distortion; power sustem monitoring; rectifiers; drives; converters; voltage notching; active power; losses; harmonic propagation; resonance; harmonic filter; unbalance;

    Abstract : .... READ MORE

  4. 4. Mechanics of V-ribbed belt drives

    University dissertation from Chalmers University of Technology

    Author : Hans Hansson; Chalmers tekniska högskola.; Chalmers University of Technology.; [1989]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

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

    University dissertation from Stockholm : KTH

    Author : Kai Pietiläinen; KTH.; [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