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The paper is about the design of a synchronous reluctance motor for the general purpose applications. The design will be particularly on the rotor side and a multi parameter approach will be used to reach a design layout. 4 pole, 2,2 kW machine have designed and manufactuaed. At B beginning the design the rotor parameters are examined and considered in terms of manufacturing limits as well. The parameter...
In this paper, three-phase interior type permanent magnet motor is modeled. The modeling is achieved by using Finite Elements Method (FEM) for healthy and asymmetric pole conditions. In this model, the motor's characteristics such as cogging torque, back electromotive force (back EMF), power, torque and magnetic force are obtained and the results are compared with the experimental results for the...
In this project, following a brief historical view on the control methods of DC motors and the first high power semiconductor devices, the mathematical models of different DC motors and buck converter are derived first. Using these equations, a high frequency buck converter is designed according to the model of the DC motor used in the experimental section. After that, using the designed converter,...
This paper describes the feasibility of a large high speed doubly fed induction generator. The equivalent circuit parameters are found and both steady state and short circuit conditions are analyzed. Two cases are considered as faults, the three phase rotor short circuit and the single phase rotor short circuit. Short circuit currents, induced voltages in the rotor windings and the torque characteristics...
In this paper, a permanent-magnet brushless (BL) DC motor is analyzed for cogging torque reduction. The high cogging torque is an important side effect in permanent magnet BLDC motor since it causes torque ripple problems. A simple decrease in cogging torque can be achieved by changing some physical parameters such as magnet arc, slot openings, etc. In this work, some cogging torque minimization techniques...
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