不对称单相感应电机对称补偿的参数辨识方法  

Parameter Identification with Symmetrical Compensation of Asymmetrical Single-phase Induction Motor

作　　者：胡磊[1] 席一箐 何礼高[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]上海克硫环保科技股份有限公司,上海201203

出　　处：《微电机》2012年第2期10-13,34,共5页Micromotors

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.

关 键 词：不对称单相电机 参数辨识 对称补偿 SVPWM控制 

分 类 号：TM346[电气工程—电机] TM921