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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71166
標題: | 用於電動輔助轉向系統之永磁同步電動機控制策略研究 Research of Permanent Magnet Synchronous Motor Control Strategies in Electric Power Steering System |
作者: | Yi-Hsuan Hsiao 蕭逸軒 |
指導教授: | 劉志文 |
關鍵字: | 電動輔助轉向,永磁同步電動機,磁場導向控制法,直接轉矩控制法,空間向量調變直接轉矩控制法, EPS,PMSM,FOC,DTC,DTC-SVM, |
出版年 : | 2018 |
學位: | 碩士 |
摘要: | 轉向系統的發展總共歷經了簡單機械轉向系統、液壓輔助轉向系統、電動液壓輔助轉向系統,直到擁有低能耗與高效能的電動輔助轉向系統。在電力電子技術與電動車輛的快速發展下,電動輔助轉向系統已被廣泛應用。
本論文旨在研究電動輔助轉向系統中永磁同步電動機控制策略之特性,先透過對電動輔助轉向系統簡化結構與基本輔助邏輯的分析建立其動態模型與輔助特性曲線,再利用座標系統轉換推導出永磁同步電動機於不同座標軸下之數學模型,以配合磁場導向控制法、直接轉矩控制法與空間向量調變直接轉矩控制法三種不同向量控制策略的設計。 為了驗證本論文所提出的控制策略之效果,將會使用MATLAB/Simulink軟體建立三種不同向量控制策略之電動輔助轉向系統,並透過不同情境之模擬結果確認上述控制策略之特性。 The developing process of steering system has experienced from the simple mechanical steering system (MS), hydraulic steering system (HPS) to electric-hydraulic steering system (EHPS), till the electric power steering system (EPS) with lower energy consumption and higher performance. With the rapid development of power electronics and electric vehicles, EPS system have been found in more and more applications. This thesis aims at the performance of permanent magnet synchronous motor (PMSM) control strategies in EPS system. Firstly, the dynamic model and assisting curve are established by analyzing the simplified model structure and standard assist logic of the EPS system. Then the coordinate transformation is used to derive the mathematical model of PMSM under different reference frames, which take part in the design of three different vector control strategies: Field Oriented Control (FOC), Direct Torque Control (DTC) and Direct Torque Control with Space Vector Modulation (DTC-SVM). In order to verify the effect of the control strategies proposed in this thesis, MATLAB/Simulink is used to build three different types of EPS system, and confirm the characteristic of the control strategies mentioned above through simulation results in different scenarios. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/71166 |
DOI: | 10.6342/NTU201801783 |
全文授權: | 有償授權 |
顯示於系所單位: | 電機工程學系 |
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ntu-107-1.pdf 目前未授權公開取用 | 14.65 MB | Adobe PDF |
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