Search for dissertations about: "induction motor efficiency"

Showing result 6 - 10 of 11 swedish dissertations containing the words induction motor efficiency.

  2. 6. Faults detection and diagnosis for three phase induction machines

    Author : Mohammed Obaid Mustafa; George Georgoulas; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : Three phase induction motors have been intensively utilized in industrial applications, mainly due to their efficiency and reliability. These motors have good properties such as: increased stability and robustness, durability, large power to weight ratio, low production costs and controllability easiness. READ MORE

  4. 7. Improved performance characteristics of induction machines with non-skewed symmetrical rotor slots

    Author : Rathna Chitroju; Chandur Sadarangani; Kelvin C Maliti; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; skewing; cross current losses; radial magnetic forces; magnetic noise; asymmetrical rotor slots; eccentricity; stator vibration; two-dimensional fast fourier transform; finite element method; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Abstract : Induction machines convert more than 55% of electrical energy into various other forms in industrial and domestic environments. Improved performance, especially by reduction of losses in induction machines hence can significantly reduce consumption of electricity. READ MORE

  5. 8. Investigation of Issues Related to Electrical Energy Efficiency of Pump and Fan Drives in Buildings

    Author : Johan Åström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis deals with issues regarding energy efficiency of building related pump andfan drive systems. Different Induction Motor (IM) and permanent magnet motor drivesystems are analyzed with focus on energy efficiency. READ MORE

  6. 9. Modeling and testing of line start permanent magnet motors

    Author : Tomas Modeer; Chandur Sadarangani; Jörgen Engström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; line start permanent magnet; flux integration; step response; Electrical engineering; Elektroteknik;

    Abstract : This licentiate thesis describes the modeling and measurements performed with the aim of developing design guidelines for Line Start Permanent Magnet Synchronous Motors, LSPMSMs. LSPMSMs can offer higher efficiency than standard induction motors used in the industry today, especially for small motor sizes. READ MORE

  7. 10. On Electrical Machine Topologies for Electric Vehicle Applications

    Author : Konstantina Bitsi; Stefan Östlund; Sjoerd Bosga; Anouar Belahcen; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The deployment of electric vehicles is considered a viable solution towardsreducing the global greenhouse-gas emissions and fossil-fuel consumption. Inorder to produce highly efficient and economically feasible electrical drivesystems, the selection of suitable electric motor designs is a key step. READ MORE