摘要
为了实现不对称单相感应电机的矢量控制,给出了一种新的不对称单相感应电机参数辨识方法。依据不对称单相感应电机的数学模型分析,通过参数折算和对称补偿实现对称控制,消除了空载实验所测电机参数受不对称磁场影响而产生的误差。辨识数据采用了母线电压重构和离散快速傅里叶变换(DFFT)技术,并进行了死区补偿,提高了辨识精度。通过基于SVPWM的仿真实验和系统电路实验,证实了方法的正确性和精确性,实现了电机参数的离线辨识。
Proposed a new off-line parameter identification method for vector controlled asymmetric singlephase induction motor. According to the mathematical model of asymmetrical single-phase induction motors, symmetry control ean be achieved by parameter conversion and symmetrical compensation. The proposed method can effectively eliminate the cause of identification error by the asymmetric magnetic field effect in the no-load test. In order to obtain the effective message in these tests, the phase voltage reconstruction tech- nique, the discrete fast fourier transform （DFFF） and the dead zone compensation were used to process the signals of currents and voltages. The validity, reliability and accuracy of the presented methods were verified by the simulation and the circuit experiments based on SVPWM.
出处
《微电机》
北大核心
2012年第2期10-13,34,共5页
Micromotors
关键词
不对称单相电机
参数辨识
对称补偿
SVPWM控制
asymmetric single-phase motor
parameter identification
symmetric compensation
SVPWM control
作者简介
胡磊（1983），男，硕士研究生，研究方向为电机调速控制系统。
何礼高（1951），男，高级工程师，硕士生导师，研究方向为变频调速控制和功率变换技术。
