CAJ | 학술논문

提出了一种永磁同步电动机电感离线测量新方法,通过对电机电压、电流和转子位置进行同步实时采样,并将所采集的电压和电流信息进行傅立叶变换,提取其基波信息;利用永磁同步电机电压稳态数学模型推导出电机电感计算公式,并利用Matlab软件离线计算电感,将电感计算值代入转矩方程计算。通过转矩计算值与实际测量值的比较,验证了本方案的有效性。
제출료일충영자동보전동궤전감리선측량신방법,통과대전궤전압、전류화전자위치진행동보실시채양,병장소채집적전압화전류신식진행부립협변환,제취기기파신식;이용영자동보전궤전압은태수학모형추도출전궤전감계산공식,병이용Matlab연건리선계산전감,장전감계산치대입전구방정계산。통과전구계산치여실제측량치적비교,험증료본방안적유효성。
It proposes a new off-line measurement method of inductance for permanent magnet synchronous motor（PMSM）. Voltage, current and rotor position of PMSM are synchronously sampled. Fundamental wave information can be got from DFT （discrete fourier transform） using sampled voltage and current information. Inductance calculation equation can be induced by the voltage steady-state equation. The inductance can be calculated off-line based on Matlab and the torque can be calculated from the measured inductance. This method is verified effective by the comparison between the actual torque and the calculated one.