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Found 2 essays matching the above criteria.

1. 1. Condition monitoring of induction machines using a signal injection technique

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Sathiya Lingam Senthil Kumar; [2020]
   Keywords : Condition monitoring; fault detection; fault diagnosis; stator winding fault; inter-turn fault.; Tillståndsövervakning; feldetektering; feldiagnos; statorlindningsfel; kortslutning mellan varv.;

   Abstract : Condition monitoring techniques can be employed to enhance reliability of electric machinery. The stator winding fault is one of the dominant causes for the failure of induction machines. In this work, the condition monitoring of an inverter-fed induction machine using high-frequency signal injection based technique is investigated. READ MORE

3. 2. 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