Search for dissertations about: "induction machine"

Showing result 1 - 5 of 34 swedish dissertations containing the words induction machine.

  1. 1. Induction Machine Speed Estimation - Observations on Observers

    University dissertation from IEA, LTH, Box 118, SE-221 00 Lund, Sweden

    Author : Bo Peterson; Lunds universitet.; Lund University.; [1996]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control engineering; robotics; Automation; Elektronik och elektroteknik; Electronics and Electrical technology; estimation; sensorless control; observer; induction machine; Automatiska system; robotteknik; reglerteknik;

    Abstract : Popular Abstract in Swedish Asynkronmotorn är den mest använda elektriska motorn i industriella tillämpningar. För att effektivt kunna varvtalsreglera asynkronmotorn har varvtalet hittills behövt mätas. Den extrautrustning som krävs för varvtalsmätning är dyr och komplicerad. READ MORE

  2. 2. Electrical Machine Development : a study of four different machine types from Swedish perspective

    University dissertation from Stockholm : KTH

    Author : Sture Eriksson; KTH.; [2007]
    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 : Development and manufacturing of rotating electrical machines have been essential for the Swedish society and industry for more than a century. The dominating manufacturer has been Asea/ABB, even if a more diversified structure has emerged in recent years. READ MORE

  3. 3. Analysis and Control Aspects of Brushless Induction Machines with Rotating Power Electronic Converters

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Naveed ur Rehman Malik; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Doubly-fed induction generator; extended vector control; induction machine; internal model control; Lindmark concept; low voltage ride through; passive resistive network; rotating power electronic converter; rotating exciter; symmetrical faults; synchronous machine; unity power factor; unsymmetrical faults; vector control; wind turbines.; Järnvägsgruppen - Elsystem; Järnvägsgruppen - Elsystem;

    Abstract : This thesis deals with the steady-state, dynamic and control aspects of new type of brushless configuration of a doubly-fed induction machine in which the slip rings and carbon brushes are replaced by rotating power electronics and a rotating exciter. The aim is to study the stability of this novel configuration of the generator under mechanical and grid disturbances for wind power applications. READ MORE

  4. 4. Modelling, Analysis, and Control Aspects of a Rotating Power Electronic Brushless Doubly-Fed Induction Generator

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Naveed ur Rehman Malik; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brushless doubly-fed induction generator; dual vector control; dynamic model; induction machine; internal model control; Lindmark concept; low-voltage ride-through; passive resistive network; rotating power electronic converter; rotating exciter; symmetrical faults; synchronous machine; thermal model; unity power factor; unsymmetrical faults; vector control; wind turbines.; Electrical Engineering; Elektro- och systemteknik; Energiteknik; Energy Technology;

    Abstract : This thesis deals with the modeling, analysis and control of a novel brushlessgenerator for wind power application. The generator is named as rotatingpower electronic brushless doubly-fed induction machine/generator (RPEBDFIM/G).A great advantage of the RPE-BDFIG is that the slip power recoveryis realized in a brushless manner. READ MORE

  5. 5. Study of Induction Machines with Rotating Power Electronic Converter

    University dissertation from Stockholm : Kungliga Tekniska högskolan

    Author : Yanmei Yao; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brushless induction machine; efficiency improvement; optimum efficiency; rotating power electronic converter; unity power factor; variable power factor; wound rotor induction machine; Electrical Engineering; Elektro- och systemteknik;

    Abstract : This thesis investigates a novel induction machine topology that uses a rotating power electronic converter. Steady-state and dynamic performance of the topology is studied to understand its operational principle. Furthermore the potential of improving its efficiency and power factor is investigated. READ MORE