感应电机无传感器矢量控制系统中的参数静止辨识  

Parameter Static Identification of Induction Motor in Sensor-less Vector Control System

作　　者：郑爱莲 徐枝新[2] 

机构地区：[1]国家电网温州供电公司电力调度中心,浙江温州325000 [2]浙江科技学院理学院,浙江杭州310023

出　　处：《电气传动》2014年第9期14-17,共4页Electric Drive

摘　　要：根据静止状态下感应电机的等效数学模型,利用通用变频器硬件平台实现了感应电机静止状态下的参数辨识。考虑到电机参数对无速度传感器矢量控制系统低速带载能力、转速精度影响较大,因此通过观测无传感器矢量控制系统低速性能来验证参数辨识的准确程度。实验表明,利用辨识参数的无传感器矢量控制系统具有优越的低速性能,特别地,实现了0.5 Hz,150%额定负载下的稳定运行且电流正弦度好。实验结果说明参数静态辨识方法是有效的。According to the equivalent mathematical model of induction motor at standstill, the parameter identification of induction motor was realized using general converter. Because the parameter of induction motor has great influence on the load capacity and speed precision of sensor-less vector control system at low speed area, the low speed performance of this system can be used to verify the accuracy of the identified parameter. The experiment results show that the sensor-less vector control system has superior performance at low speed. Especially, 150% rated load is obtained in the system at 0.5 Hz, and the current waveform is nearly sinusoidal. This proves that the parameter identification at standstill is effective and correct.

关 键 词：感应电机 参数辨识 静止法 全阶磁链观测器 无速度传感器矢量控制 

分 类 号：TM346[电气工程—电机]