公开(公告)号：US20030122521A1

公开(公告)日：2003-07-03

申请号：US10329487

申请日：2002-12-27

Applicant: ABB Service S.r.I

Inventor： Dario Colombo

IPC: H02P001/46 ,  H02P003/18

CPC classification number: H02P6/185

Abstract: A method for determining the position of the rotor of a synchronous alternating-current permanent-magnet machine, its particularity consisting of the fact that it comprises the steps that consist in: injecting in the machine a high-frequency voltage superimposed on the voltage delivered by the machine control system; measuring the current of the motor and extracting a current that is linked to the injected voltage; obtaining from the injected voltage and from the corresponding current the electrical angle null suitable to identify the position of the rotor.

Abstract translation: 一种用于确定同步交流永磁机的转子位置的方法，其特性包括以下事实：其包括以下步骤：在机器中注入叠加在由 机器控制系统; 测量电机的电流并提取与注入电压相关的电流; 从注入的电压和相应的电流获得适于识别转子位置的电角度θ。