Abstract

The Brushless DC (BLDC) variable-speed drive is widely used because of its particularly high mechanical power density, simplicity, and cost effectiveness. A software rotor position generation has been implemented on the DSP Controller family, thus saving the mechanical position sensor cost. Based on the non-fed phase back electromotive force measurement, this software- computed rotor position is fully integrated and able to adapt itself to any BLDC drive-inherent problem.
This application report presents successively the sensorless principle theoretical background, the implementation of the rotor position determination, the BLDC drive imperfection handling the operating system, and every necessary experimental result, thus leading to an adaptable simple and cost-effective drive.


【摘 要】 無刷直流電機驅(qū)動的廣泛的應(yīng)用,特別是高機械功率密度、簡單化和成本效益。一個軟件控制的DSP控制器對家庭一代人的影響，為我們節(jié)約了機械的成本?；谂cnon-fed相背的電動勢測量，這個軟件所計算的轉(zhuǎn)子位置被充分整合并能適應(yīng)任何無刷直流驅(qū)動器的固有缺陷。這個應(yīng)用程序報告提出了連續(xù)地?zé)o位置傳感器原理的理論背景，轉(zhuǎn)子位置的實施方法, 無刷直流驅(qū)動缺陷的處理操作系統(tǒng)和必要的試驗結(jié)果，從而使得控制簡單而且又高效的驅(qū)動器。