Essays about: "induction machines"

Showing result 11 - 15 of 22 essays containing the words induction machines.

  1. 11. Impact of Converter Modulation Strategies on the Losses in a Traction Motor

    University essay from KTH/Elektrisk energiomvandling

    Author : Emil Fjällström; [2015]
    Keywords : Induction Machine; FEM; FLUX; Induktionsmotor; FEM; FLUX;

    Abstract : With an increased demand on high-efficiency electrical machines in traction applications, better understanding in the losses induced by the converter is needed. The harmonic losses from the converter are non-negligible part of the total losses in an induction machine, and these harmonic losses have been studied here with a focus on iron, skin-effect and proximity losses. READ MORE

  3. 12. Manufacturing Effects on Iron Losses in Electrical Machines

    University essay from KTH/Elektrisk energiomvandling

    Author : Konstantinos Bourchas; [2015]
    Keywords : electrical machine; induction motor; iron losses; relative permeability; guillotine; ber laser; CO2 laser; laser settings; cutting effect; welding; electrical steel.; elektrisk maskin; induktion motor; järnförluster; relativ permeabilitet; giljotin; fiberlaser; CO2-laser; laser inställningar; skäreffekt; svetsning; elektromagnetisk plåt;

    Abstract : In this master thesis, the magnetic properties of SiFe laminations after cutting and welding are studied. The permeability and the iron loss density are investigated since they are critical characteristics for the performance of electrical machines. READ MORE

  4. 13. Simulation of 3ph induction motor in Matlab with Direct and Soft starting methods.

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Mohamad Moulham Abboud; [2015]
    Keywords : 3ph-induction motor; Matlab; Model; Simulation; Direct starting; Soft starting;

    Abstract : Asynchronous machines are considered nowadays the most commonly used electrical machines, which are mainly used as electrical induction motors. Starting the induction motor is the most important and dangerous step. READ MORE

  5. 14. Experimental Comparison of Losses in a Grid-connected and M2C-fed 11kW Induction Motor

    University essay from KTH/Elektrisk energiomvandling

    Author : GUSTAV MÖRÉE; [2015]
    Keywords : power losses; electric machines; AC-machines; induction machines; harmonic content; iron losses; modular multilevel converter M2C ; effektförluster; elektriska maskiner; AC-maskiner; asynkronmaskiner; övertonsinnehåll; järnförluster; modulär multinivå omvandlare M2C ;

    Abstract : This thesis analyzes the power losses in induction machines and how the losses depend on the harmonic content of the applied voltages. Two cases are compared, one case where a machine is fed with a sinusoidial voltage and one case with a modular multilevel converter (M2C). READ MORE

  6. 15. Non-Invasive Technologies for Condition Monitoring of Synchronous Motors

    University essay from Elektricitetslära

    Author : John Sjölander; [2014]
    Keywords : Condition Monitoring; Co-simulation; Synchronous Motors;

    Abstract : The modern industry today is highly dependent on electric motors of differenttypes and sizes. Synchronous motors are used in applications where a fixedspeed is desired. These machines are often found in high power applicationswhere they are preferred over induction motors due to their higher efficiency. READ MORE