- 學位論文
三相永磁同步馬達與開路失效之數學模型建立驗證與探討
Mathematical Modeling and Verification of Three-Phase PMSM with Open Circuit Fault
摘要
本研究針對應用於電動車之驅動馬達，開發與建立數學模型，透過以目前量產市售電動車之馬達為參考對象，從搜集永磁同步馬達行為文獻開始，建立馬達行為包含電壓、電流、轉速、轉矩及損失之數學方程式，並利用MATLAB Simulink平台建立數學模型，模擬馬達行為，為了使研究能與真實馬達相互驗證、比較，透過AVL動力計量測此電動車馬達之性能圖譜，並記錄此電動車馬達之規格、參數。由於部分馬達參數不易實際測量，因此搭配Ansys Maxwell建立2D馬達剖面物理模型分析馬達並擷取相關馬達參數，整理後匯入數學模型，達成在MATLAB Simulink平台上模擬馬達行為與性能。完成數學模型後，進一步去研究馬達的失效行為，並將常見的失效行為整理與歸納後，選擇開路失效行為建立數學模型，並與有限元素模型模擬之成果相互比較探討，最終建立一可模擬馬達穩態、暫態及開路失效行為之數學模型。
並列摘要
This research focuses on the development and establishment of mathematical models for driving motors applied to electric vehicles. By taking Nissan Leaf's electric vehicle motors as reference objects, starting from collecting literature on the behavior of permanent magnet synchronous motors based on the mathematical equations of voltage, current, speed, torque and loss, then, use MATLAB Simulink to establish mathematical models to simulate motor behavior. In order to enable the results to be verified and compared with real motors, the performance map of Nissan Leaf electric vehicle motors is measured through AVL dynamometer, and the specifications and parameters of Nissan Leaf electric vehicle motors are also recorded. Because some motor parameters are not easy to actually measure, we also establish an Ansys Maxwell 2D motor physical model to analyze the motor and identify related motor parameters. After sorting and importing these data into the mathematical model, it is possible to simulate the behavior and performance of the motor on the MATLAB Simulink platform. After completing the mathematical model, we study the failure behavior of the motor. After sorting out and summarizing the common failure behaviors, we select the open-circuit failure behavior to establish a mathematical model, and compare the results with the finite element model simulation results. Finally a mathematical model that can simulate the steady-state, transient-state, and open-circuit failure behavior of the motor is established.