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This paper is about the mechanical design and analysis of a yokeless and segmented armature axial flux permanent-magnet (PM) synchronous machine, which consists of two external rotors and an inner stator. Although this new electrical machine has many advantages such as high torque density, shorter axial length, and high efficiency, its mechanical construction is yet challenging. This is mostly due...
This paper presents a general technique to analyze thermal behavior of direct-drive permanent magnet (DDPM) wind generator. Both lumped parameter network (LPN) and finite element method (FEM) are used in this technique to predict the temperature distribution of a 2 MW DDPM wind generator. This technique is then validated after experimentation carried out on a 10 kW prototype equipped with thermal...
The 3-D temperature rise of flameproof induction motor are analyzed and computed by using finite element method. The heat resource of the motor, the equivalent coefficient of heat conductivity for the stator coil, and the coefficient of heat convection in the air-gap are analyzed. The complex heat exchanges between the stator and air-gap and that between the rotor and air-gap by convection are specially...
This paper presents a 3-phase, 400 W, 14000 rpm, 2-pole/3-slot non-overlapping windings PM motor. In the design of the motor, Taguchi parameter method coupled with the finite element method (FEM) analysis is employed to minimize the level of cogging torque and maximize the efficiency of the motor. A mechanical analysis is carried out to investigate the mechanical feasibility of the rotor due to high-speed...
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