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(wú)刷直流電機(jī)驅(qū)動(dòng)的廣泛的應(yīng)用,特別是高機(jī)械功率密度、簡(jiǎn)單化和成本效益。一個(gè)軟件控制的DSP控制器對(duì)家庭一代人的影響，為我們節(jié)約了機(jī)械的成本?；谂cnon-fed相背的電動(dòng)勢(shì)測(cè)量，這個(gè)軟件所計(jì)算的轉(zhuǎn)子位置被充分整合并能適應(yīng)任何無(wú)刷直流驅(qū)動(dòng)器的固有缺陷。這個(gè)應(yīng)用程序報(bào)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(shí)施方法, 無(wú)刷直流驅(qū)動(dòng)缺陷的處理操作系統(tǒng)和必要的試驗(yàn)結(jié)果，從而使得控制簡(jiǎn)單而且又高效的驅(qū)動(dòng)器。