三相永磁同步馬達轉子初始角估測之研究

Abstract

本論文針對三相永磁無刷馬達的轉子初始角位置估測，提出利用本研究推導之永磁同步馬達電感模型來計算最佳馬達注入弦波頻率，本文與其他高頻注入法相較，不需要透過試誤法反覆實驗，可以利用電腦模擬找出注入頻率。經模擬並在吊扇馬達上實驗結果證明，本研究可以快速的找到最佳弦波頻率估計出馬達轉子位置，並在準確度、振動量、噪音，三個方面進行分析。本研究利用微處理器所開發之直流無刷馬達控制系統，未來可以應用於家電、工具機、遙控玩具(RC)、光電及辦公室自動化(OA)之相關領域。

The thesis proposed initial rotor position estimated by a magnetic circuit analysis method for inductance model of Permanent Magnet Synchronous Motors (PMSM), and we used this inductance model for analyzing the optimal motor injection sine wave frequency to motor as the test signal. Comparing with other high frequency injection method, this study did not need trial and error experiments. We can use program simulations to identify the injection frequency. Then, we also implemented on the ceiling fan and proved optimal injection frequency. This method can find the optimal injection frequency before the experiment, and analysis in accurate, vibration and noise. Three-phase DC motor control driver is developed by microprocessor which can be applied to electrical appliances, machine tools, remote control toys, office automation and so on.