第12期 钟黎萍等：基于高频信号注入的永磁电机转子位置估计方法中的电压输入 。1263。 [1]]Jang J H.Ha JI.SulS K,ct al.Analysis of pemarent-magnet [12 Guerrero JM,Briz F.Inverter nonlinearity effects in highfre machine for sensorless control based on high frequency signal in- quency signahinjection hased sensorless control methods.IEEE jection.IEEE Trans Ind Appl,2004,40(6):1595 Trans Ind Appl.2005,41(2):618 Voltage inputting for the rotor position estimation of a permanent magnet motor based on high-frequency signal injection ZHONG Liping,ZHOU Xiaom in,WANG Changsong,GONG Xianfeng Mechanical Engineering School,University of Science and Technology Beijing.Beijing 100083.China ABSTRACT To estimate the rotor position of a permanent magnet synchronous machine by the method of high-frequency signal injection,the basic and high-frequency volt ages should be input into the machine simulta- neously.The feasibility to realize this idea by a pulse width modulation(PWM)inverter was discussed and sim- ulated.The results show that this method works well with an appropriate ratio of carrier signal to modulation. The inverter's nonlinear behavior w as also studied,and its effects only occur in the time domain as the phase currents cross zero.According to this feature,a simple compensation measure was presented and simulation re- sults verified its correctness. KEY WORDS permanent magnet motor;high-frequency signal injection;modulating wave;carrier wave[ 11] Jang J H, Ha J I, Sul S K, et al.Analysis of permanent-magnet machine for sensorless control based on high-frequency signal in￾jection.IEEE Trans Ind Appl, 2004, 40( 6) :1595 [ 12] Guerrero J M , Briz F.Invert er nonlinearity effects in high-fre￾quency signal-injection-based sensorless control methods.IEEE Trans Ind Appl, 2005, 41( 2) :618 Voltage inputting for the rotor position estimation of a permanent mag net motor based on high-frequency signal injection ZHONG Liping, ZHOU X iaomin , WANG Changsong , GONG X ianfeng Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China ABSTRACT To estimate the rotor position of a permanent mag net sy nchronous machine by the method of high-frequency signal injection, the basic and high-frequency voltages should be input into the machine simulta￾neously .The feasibility to realize this idea by a pulse w idth modulation ( PWM ) inverter w as discussed and sim￾ulated .The results show that this method w orks well with an appropriate ratio of carrier signal to modulation . The inverter' s nonlinear behavior w as also studied, and its effects only occur in the time domain as the phase currents cross zero .According to this feature, a simple compensation measure w as presented and simulation re￾sults verified its correctness. KEY WORDS permanent mag net mo tor;hig h-frequency signal injection ;modulating wave ;carrier w ave 第 12 期 钟黎萍等:基于高频信号注入的永磁电机转子位置估计方法中的电压输入 · 1263 ·