- 學位論文
電動車輛空調動力馬達設計與實現
Design and implementation of a motor for air-conditioning compressors in electric vehicles
摘要
電動車輛為近代載具發展趨勢，與過去內燃機動力引擎不同特性為系統改採電力為能量來源，因此包含動力及空調等系統都須要有新的設計。本文針對空調壓縮機驅動馬達為設計目標，利用簡化之磁路模型配合最佳化軟體選取參數，並藉由3維有限元素分析軟體做驗證。接著進一步經由有限元素分析獲得之磁通鏈，將其引入空間向量配合計算機工具討論電動機兩軸空間下之物理量如磁通鏈、電流值等，並透過力矩方程式及電壓方程式估測馬達性能曲線，且比較兩軸磁通電感耦合因素之下對性能的影響，最後進行馬達性能測試並討論。由本論文研發出的車用壓縮機驅動馬達經測試後符合原設計規格，並已安裝試用於電動汽車上。
並列摘要
With the recent advent of electric vehicles, electricity is considered comparable to the conventional internal combustion engine in terms of a power source. Hence, the sub-systems of electric vehicles such as air-conditioners require new designs. This thesis focuses on the design of a motor suitable for driving a vehicle’s air-conditioning compressor. The variables in the simplified magnetic model were chosen using the MOST(multifunctional optimization system tool), and the final variables were verified and refined by means of finite element analysis (FEA). Next, the flux linkages calculated by the FEA were transformed into vector space. The current, and flux linkage with respect to direct- and quadrature-coordinate system were discussed, and the performance of the motor was estimated using torque and voltage equations. Then, the torque-speed(T-N) curves were compared while considering inductance-coupling. Finally, a performance test was conducted on a dynamometer, and the experimental results showed that the motor performance was achieved as original specifications. The optimally designed motor was also successfully implemented on an air-conditioning system of an electrical vehicle.