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標題Title: Sensorless Speed Control of BLDC Motor Using Six Step Square Wave and Rotor Position Detection
作者Authors: 施慈暉
上傳單位Department: 電機工程系
上傳時間Date: 2014-11-26
上傳者Author: 施慈暉
審核單位Department: 電機工程系
審核老師Teacher: 謝銘原
檔案類型Categories: 課堂報告In-class Report
關鍵詞Keyword: Sensorless Speed Control of BLDC Motor Using Six Step Square Wave and Rotor Position Detection
摘要Abstract: This paper presents a brushless DC motor (BLDCM) control system that does not require Hall sensor and speed encoder for an air conditioner fan motor. Using low cost circuits, the zero-crossing points are detected to estimate the commutated timing and speed information.

Hall element shortcoming can therefore be eliminated. A modified six-step square wave pattern with pulse-width modulation is developed to simplify the conventional coordinate transformations technique. To verify the proposed method, a prototype fan motor controller is constructed and tested. Experimental results show that the proposed method has high efficiency and good performance.

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2014_11_e6e55b54.pptx 2675Kb pptx 61 1
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