新式電動輪椅馬達之最佳化設計與實現

Optimal Design and Implementation of Rim Motor for Electric Wheelchair

黃偉禎(Wei-Chin Huang)

指導教授 ： 陽毅平

國立臺灣大學/工學院/機械工程學研究所/碩士(2005年)

https://doi.org/10.6342/NTU.2005.01919

摘要

本篇論文的目的是為行動不便的患者設計一新式電動輪椅馬達。新式輪椅馬達必須能提供足夠的力矩以及符合規定的轉速，並且在重量方面能盡量達到輕量化的要求，使患者在乘坐輪椅時能兼具便利及安全性。
本新式輪椅馬達的結構，主要透過一內部裝設有許多磁鐵的手輪管作為轉子，及一個固定馬達軸心的定子，以構成此馬達的驅動結構。在馬達變數設計方面，首先必須針對電動輪椅馬達的設計與要求作評估，將評估的結果作為馬達設計的條件，並使用多目標函數最佳化軟體，針對特定的目標和規格進行馬達性能的最佳化設計，並使用3維有限元素分析軟體作功能驗證。最後依據設計規格製作成雛型，在動力計上作測試的結果，手輪馬達的感應電動勢常數達4.5rpm/volt，力矩常數可達0.26kgm/Amp。

關鍵字

電動輪椅馬達 ； 手輪馬達

並列摘要

This thesis proposes a novel design of a dedicated rim motor for electric wheelchairs. This rim motor consists of a rotor and two sectors of stator on each wheel. The rotor is an assembly of magnets plugged in the tube of rim, while the stator is 45 degree fan-shape plate.

Before the design of rim motor, it is necessary to analyze the specifications of the electric wheelchair.A 2D magnetic model of the rim motor is created to perform the optimal design by the use of the optimizer Multi-Object System Tool(MOST). The Optimal results are verified and refined by 3D Finite-Element Analysis (FEMA) electromagnetic analysis software.The prototype of rim motor is fabricated and tested on dynamometer. The experiments show that the back emf constant is 4.5rpm/volt and the torque constant is 0.26 kgm/amp.

並列關鍵字

electric wheelchair ； rim motor

參考文獻

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[22] 劉至浩, 新型四相車輪馬達驅動性能提升的研究, 國立台灣大學機械工程學研究所碩士論文, 93年6月。

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