Simulation of wind turbine based on fuzzy-PI control Guo Tianyong; Zhao Gengshen; Cheng Ruqi ...
2009 2nd International Conference on Power Electronics and Intelligent Transportation System (PEITS),
2009-Dec., Volume:
3
Conference Proceeding
Aiming to improve the accuracy of the wind turbine model for wind power research in laboratory, this paper presents the fuzzy control to the imitation research with the Sepic topology. The fuzzy-PI ...control has the advantages of small overshoot and quick response, and then it makes the torque characteristic of DC motor much approaches to the wind turbine. The simulation results show that the system model and arithmetic are valid and feasible.
The shaft in a conventional switched reluctance motor with multi-rotor teeth fills up a relatively high interior volume. However, it does not contribute in producing any torque. It is there only for ...mechanical purposes. Additionally, the conventional toothed rotor produces high torque ripples. These two points force to come up with a new design for the switched reluctance motor rotor that can rotate inside the stator without a shaft while grading the reluctance of the air gap to produce an output torque with low ripples. This paper introduces a new rotor design that consists of two solid iron cylinders. In the proposed design, there is no need for the shaft. The use of two cylinders grades the air gap, consequently producing a torque with low ripples.
The purpose of this research was to determine the magnetic field distribution and torque of the brushless electric motor. Different construction varieties are considered for decreasing a cogging ...torque component. 2D and 3D motor models were built with great attention to the finite element mesh, so that the meshes of different models are directly comparable. Final comparison of the described models, the numerical formulations and the measurement results offer a variety of answers and evaluations from different numerical approaches. All numerical analyses were performed by a research version of the ANSYS 6.1 (EMAG) computer program.
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