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Study on Control of Vertical Axis Magnetic Suspension Wind Power Generator Rotor System

Author: ZhangGuangLu
Tutor: LiHuiGuang
School: Yanshan University
Course: Control Theory and Control Engineering
Keywords: Wind Power Vertical axis Maglev Adaptive Neuro-Fuzzy Inference System Sliding Mode Control
CLC: TM315
Type: Master's thesis
Year: 2010
Downloads: 239
Quote: 1
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Abstract


With the continuous economic development and living standards continue to improve, the energy problem has become urgent. Known as the \If you can successfully developed for the regional characteristics of easy installation, low start wind speed, safe small, size wind turbines, and to promote the family used to make compact power to become an effective complement to the power grid, both to reduce the pollution problem in conventional power generation , but also can ease energy shortages in some areas, which for China's energy configuration will have great significance. This paper chooses theoretical and practical significance maglev vertical axis wind turbine rotor control system for the research project, done some related work. This article first maglev vertical axis wind turbine with a brief design, maglev technology applications in the rotor system, using electromagnetic - permanent solution combines mixed suspension, it has many advantages: no contact, no lubrication, power consumption low start up wind speed further reduced and so on. On this basis, the establishment of a mathematical model of the rotor system, in order to be able to effectively control the displacement of the rotor. Then, combining sliding mode variable structure control, adaptive neuro-fuzzy inference system (ANFIS) and widely used in industry PID control thought. For magnetic rotor system, we further studied the fuzzy sliding mode control and adaptive neuro-fuzzy inference system ANFIS-PID control to achieve a vertical axis maglev wind turbine rotor stably suspended. Sliding Mode Control of the biggest advantages is the strong robustness, by selecting the appropriate switching function and design of the corresponding control law to guarantee the maglev vertical axis wind turbine rotor system of the complex operating environment adaptability to parameter variations and interference suppression . The biggest drawback is that sliding mode control exists buffeting, this fuzzy sliding mode control algorithm to soften the output of a large degree of erosion of general chattering sliding mode control problem. ANFIS-PID control fully integrated ability to abstract fuzzy control and neural network learning ability, the PID control parameters can be adjusted to achieve online, effective solution to the conventional PID controller can not automatically adjust the PID parameters shortcomings, and enhance self-adjustment of the rotor system capability. Simulation results show that the two control methods successfully achieved a stable suspension of the rotor, so that the vertical axis maglev wind turbine rotor system has good dynamic performance, achieve the desired objectives.

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CLC: > Industrial Technology > Electrotechnical > Motor > Generators, large the generator group ( Zonglun,) > Wind turbines
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