【文件属性】：
文件名称：A Simplified High Frequency Injection Method For Method For
文件大小：150KB
文件格式：PDF
更新时间：2013-07-24 18:00:19
永磁同步电机的高频注入
This paper presents a simplified HF injection method
for permanent magnet synchronous motor (PMSM) sensorless
control. The discussed HF injection scheme utilizes motor
magnetic saliency property which contains the information of the
rotor position due to magnet saturation. A high frequency voltage
signal is injected into the d-axis winding in order to detect the
magnetic saliency and estimate the rotor position. Then filters are
used to analyze motor d-axis current and to extract rotor position
information. In the proposed method, a band pass filter used in
signal processing loop is omitted in order to avoid its phase shift
and magnitude decrease. Thus fewer filters are used than those
conventional HF injection schemes. The simulation and
experimental results are presented based on the analysis of the
proposed control strategy.