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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/9137


    Title: 無刷直流馬達直接轉矩控制方法之轉矩漣波改善;The Torque Ripple Improvement of Brushless DC Motor by Direct Torque Control Method
    Authors: 鍾昭玟;Chao-Wen Chung
    Contributors: 電機工程研究所
    Keywords: 直流無刷馬達;直接轉矩控制;轉矩漣波;Brushless DC Motor;Direct Torque Control;Torque Ripple
    Date: 2001-07-07
    Issue Date: 2009-09-22 11:41:48 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 本論文以改善無刷直流馬達轉矩漣波為主要的研究方向,輔以定點式單晶片數位信號處理器(Digital Signal Processor, DSP)及硬體電路為實現的基礎。 以直接轉矩控制法(Direct Torque Control, DTC)設計驅動器時,傳統的電壓向量切換方式並不能同時兼顧動態和穩態的性能要求,所以本論文實現二種改良型的DTC電壓向量切換方式。第一種方式是於變頻器控制中加入零向量切換狀態,由傳統的三階轉矩控制迴路轉為五階;而第二種方式則是劃分空間向量區域為十二個區間,而不是傳統的六個區間。如此,使得DTC的轉矩輸出不論動態或穩態都能有優異的表現,並進而改善傳統DTC之穩態轉矩漣波現象。 在設計整體驅動器及控制系統時,若能輔以電腦輔助設計系統,常常能有事半功倍的效果,所以在本論文中也以電腦模擬的方式先行對DTC之控制架構做一模擬,以利於和實驗結果相互驗證。 由本論文的分析、研究、模擬和驗證,可證明本論文所提出的改良型直接轉矩控制方法,確實改善了無刷直流馬達的轉矩漣波,並符合了實際應用場合的高性能需求。 The paper describes an investigation of direct torque control(DTC) for brushless dc motor (BDCM) drives. The paper implementation two DTC methods and compare the two methods with traditional DTC on torque ripple of BDCM.The implementation of DTC in BDCM drives is discussed and the switching table specific for BDCM is also derived.The simulation and experimental results show that the torque ripple and response are extremely good than traditional DTC.
    Appears in Collections:[電機工程研究所] 博碩士論文

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