2005-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/675799摘要:本子計劃提出對太陽能燃料電池電動汽車動力推進系統的技術提升策略。混合動力包括太陽能、燃料電池、及輔助儲能之二次電池和超高電容,經過能量管理的規劃,提供主要電力給動力推進系統。動力推進系統包括內轉式直流無刷車輪馬達,及其驅動控制器,本研究將開發高功率(5kW)高扭力(30kgm以上)的車輪馬達,以及具有串並聯換檔及煞車回充功能的數位化控制驅動器。 車輪馬達的設計為的是要擺脫傳統間接驅動系統的限制,省略機械傳動和減速齒輪之功率消耗。用最佳化設計理論,使車輪馬達在最小重量下產生最大扭力和效率。為了在不同高低加速行車模式下,電動汽車發揮最佳效率,以增加整車續航力。本研究將設計電池串並聯和馬達繞線串並聯組合而成的檔次;也將研究車輪馬達最佳驅動電流和反電動勢的關係,尤其在加速過程,反電動勢造成的電樞反應,極可能是調整驅動波形的重要依據。如何利用超高電容的特性,成為加速或起動的電源,也成為減輕二次電池負荷,提高續航力的方式,加上煞車回充電力的儲存,在整車能量管理中更形成重要一環。 本子計劃的特色,將以太陽能燃料電池混合動力車中動力推進系統技術提升為主軸,延伸至能量管理,動力懸吊與轉向,雙<br> Abstract: This sub-project proposes an advanced technology on the propulsion system for the hybrid electric vehicle with solar and fuel cells. The hybrid power includes the primary solar and fuel cells, and the secondary batteries and ultra-capacitors, while the propulsion system consists of two rear-driven wheel motors and their drives. The wheel motors will be designed with high power (5KW), high torque (>30kgm), disc-type, dc brushless of axel magnetic flux, and installed inside the wheels. The motor controller is implemented in the field programmable gate array (FPGA), and the power drive has electronic gears and regenerative braking circuits. The novel wheel motor for passenger cars is designed inside of wheels, and therefore the power dissipation from traditional transmission mechanism and reduction gears is neglected. One of the design objectives is to increase the driving range of the vehicle; this will be accomplished by an optimal design of the wheel motor with high torque-to-weight ratio and high efficiency. The drive will also provide the capability of electronic gears by parallel or series connections of batteries and motor windings. The armature reaction yielding a distortion of flux distribution will be considered to modify the optimal current waveform that is proportional to the back electromotive waves. The ultra-capacitor is a good energy storage element, that it can absorb the regenerative braking energy for the next accelerating. The energy management system will coordinate the energy sources and propulsion system for an improvement of the diving range of the hybrid vehicle. This subproject focuses its characteristic on the advanced technology of the propulsion system for the hybrid vehicle with the solar and fuel cell power. This main theme is extended to the energy management system, dynamic suspension and steering, current distribution strategy for synchronous speed and differential control of two rear wheels, and navigation information of vehicle dynamics. Therefore, the subproject becomes a critical part of the main integrated-type project.太陽能燃料電池電動汽車混合動力直驅車輪馬達最佳驅動電流hybrid vehiclewheel motoroptimal current waveformsynchronous speed controlpropulsion system.太陽能燃料電池混合動力直接驅動車之研發與展示-子計畫三:太陽能燃料電池混合動力車多相車輪馬達動力系統性能提升技術研發(2/3)