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標題: | 以適應性函數估測法為基礎之最佳化線性控制實現縮尺風力發電機變轉速控制 Optimized Linear Control Based on Adaptive Function Approximation with Variable Rotor Speed of Scaling Wind Turbine |
作者: | 詹孟倫 Meng-Lun Zhan |
指導教授: | 江茂雄 MAO-HSIUNG CHIANG |
關鍵字: | 風力發電機,非線性控制器,自適應控制,函數估測法,線性二次調節器,PID,直驅式永磁同步發電機,變旋角控制系統,變轉速控制,定轉速控制,轉速軌跡追蹤控制,直流伺服馬達驅動系統,縮尺實驗, wind turbine,nonlinear controller,adaptive control,function approximation,LQR,PID,direct-drive permanent magnet synchronous generator,variable rotation angle control system,variable speed control,constant speed control,speed tracking control,DC servo motor drive system,scaling down experiment, |
出版年 : | 2022 |
學位: | 碩士 |
摘要: | 大型陸域、離岸風機在面對不同環境風速下有不同的控制策略,本研究旨在設計縮尺實驗以及小型風力發電機的主動式變旋角系統機構,發展非線性控制器來控制風力發電機轉子轉速,並模擬大型風機的控制策略。 針對2kW小型風力發電機依據縮尺理論設計縮尺實驗風力發電機的特徵長度,發展創新主動式葉片變旋角機構,使原本只有被動式控制的小型風力發電機可以透過輪轂前方的伺服馬達帶動傘形齒輪驅動葉片旋角,改變葉片擷取風能效率,達到控制轉速目的。 縮尺實驗整合空氣動力學、風機機組動態、控制系統等。在控制系統部分,使用Matlab / Simulink針對風力發電機於葉片升力與空氣動力之間的非線性特性,設計以適應性函數估測法為基礎之最佳化線性控制器(Optimized linear control based on adaptive function approximation),結合PID控制器、LQR線性二次調節器、觀察器、RBF徑向基函數、自適應函數估測法,發展Adaptive Function Approximation-Linear Quadratic Regulator-PID Controller (AFA-LQR-PID),研究在不規律、非線性的風速中,透過AFA-LQR-PID控制器補償風力發電機系統非線性的特性,並根據不同的控制策略,達到定轉速、變轉速及轉速軌跡追蹤的控制目標。 This research aims to design the active variable rotation angle system mechanism for the scaled experiment and small wind turbine, and to develop a non-linear controller to simulate the control strategy of the large wind turbine. We design the dimensions of the wind turbine for the 2kW small wind turbine based on the scaling theory, and develop an innovative active blade rotation mechanism to enable the passive control of the small wind turbine to drive the blade rotation angle through the bevel gear driven by the servo motor in front of the hub to change the efficiency of the blade to capture wind energy and achieve the control purpose. The experiment integrates aerodynamics, wind turbine dynamics, and control system. In the control system, MATLAB / Simulink is used to design an optimized linear control based on adaptive function approximation for the non-linear characteristics of the wind turbine between blade lift and aerodynamic forces. By combining the linear quadratic regulator, observer, radial basis function, and adaptive function approximation method, develop the Adaptive Function Approximation-Linear Quadratic Regulator-PID Controller (AFA-LQR-PID). AFA-LQR-PID controller is used to compensate the non-linear characteristics of the wind turbine system in the irregular and non-linear wind speed, and to achieve the control objectives of constant speed, variable speed, and speed tracking cording to different control strategies. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/84318 |
DOI: | 10.6342/NTU202200840 |
全文授權: | 同意授權(限校園內公開) |
電子全文公開日期: | 2027-05-29 |
顯示於系所單位: | 工程科學及海洋工程學系 |
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ntu-110-2.pdf 目前未授權公開取用 | 6.36 MB | Adobe PDF | 檢視/開啟 |
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