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Found 2 essays matching the above criteria.

1. 1. Performance Analysis of Unskewed Asymmetrical Rotor for LV Induction Motors

   University essay from KTH/Elektrisk energiomvandling

   Author : Usman Shaukat; [2012]
   Keywords : Induction motor; skewed rotor; inter-bar currents; starting performance; asymmetrical rotor slots; 2D FEM; synchronous torques.;

   Abstract : This master thesis presents a comparative analysis of the starting performance and losses at rated operation for a 15 kW, 4-pole industrial induction motor, mounted with standard skewed, unskewed and unskewed asymmetrical die-cast aluminium rotors through measurements and simulations. It is a well-known fact that rotor skewing suppresses the synchronous torques at low speeds and also reduces the audible noise of the machine. READ MORE

3. 2. Parameter Estimation in a Permanent Magnet Synchronous Motor

   University essay from Reglerteknik

   Author : Mikael Tenerz; [2011]
   Keywords : Permanet magnet synchronous motor parameter estimation;

   Abstract : This thesis adresses the problem of estimating the parameters in a permanent magnet synchronous motor (PMSM). There is an uncertainty about the parameters, due to age and tolerances in the manufacturing process. Parameters such as the resistance and the current to torque factor Kt, changes with respect to temperature as well. READ MORE