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Studies on Intelligent Control Technology for Wind Turbines

Author: ZhangBin
Tutor: LiPingKang
School: Beijing Jiaotong University
Course: Mechanical and Electronic Engineering
Keywords: Wind Power Sliding Mode Control Direct Torque Control (DTC) Fuzzy Control CAN bus technology
CLC: TP273
Type: Master's thesis
Year: 2009
Downloads: 129
Quote: 0
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Abstract


Wind energy is the most promising renewable energy , wind power applications are becoming increasingly widespread . At present, the research difficult and hot wind field is focused on advanced control strategies and optimization techniques . Wind energy is random , instability and low energy density , therefore , control technology is the key of the safe operation of the unit and improve the efficiency of key research topics in the field of wind energy at home and abroad . This article is based on in-depth study of the principle of wind power generation and control theory , respectively, established a mathematical model of the wind turbine and the doubly-fed generator , laid the theoretical foundation for the establishment of a control system for wind power generation system model . In this paper, sliding mode variable structure , and fuzzy control theory , to overcome the adverse effects of the system parameters and external , and ultimately the control of high-performance wind power generation system with adaptive capacity , and provide reference and basis for practical applications . The main contents are as follows: 1 , the wind turbine research status and research trends , and describes the purpose and significance of the research . 2 , using the analytical modeling method to establish the mathematical model of the wind turbine , in-depth analysis of the characteristics of the wind turbine , wind turbine wind turbines and related parts into part three parts of the drive train and engine focuses on wind machine transmission parts rigid shaft model and the flexible shaft model . 3 , the overall design of wind turbine control . Sliding mode variable structure control theory and fuzzy logic control the combined control introduction of wind turbines , to overcome the random effects of changes in system parameters as well as outside . And simulation study using the established model . 4 , for some of the shortcomings exist in the conventional direct torque control system , the fuzzy control theory introduced direct torque control of doubly-fed generator , so as to improve the robustness of the control system , the electromagnetic torque input mechanical torque and speed good track . 5, the introduction of CAN bus technology wind turbine cluster control and achieve the basic function of sending and receiving information .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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