电感参数对IPMSM转子位置估算的影响  

Effect of inductance parameters on the rotor position estimation for IPMSM

作　　者：于艳君[1] 柴凤[1] 高宏伟[1] 程树康[1] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150001

出　　处：《电机与控制学报》2014年第7期60-64,71,共6页Electric Machines and Control

基　　金：国家自然科学基金(51307032);高等学校博士学科点专项科研基金(20122302120016)

摘　　要：在低速和零速情况下,内置式永磁同步电机(IPMSM)的无位置传感器控制通常基于高频电压注入法,利用电机d、q轴电感的不同来实现。定子电流的变化会造成d、q轴电感的变化,进而影响电机转子位置的估算精度。研究了一种基于PWM高频载波信号的转子位置估算方法,以10极/12槽IPMSM样机为例,分析了磁饱和及交叉耦合对电机电感参数及转子位置估算的影响,建立了考虑磁饱和及交叉耦合情况下的内置式永磁同步电机模型,并构建了系统的仿真模型和实验平台。仿真和实验结果证明了理论分析的正确性。At low or zero speed, sensorless control of interior permanent magnet synchronous machines （ IPMSM） can be achieved using the difference between d-and q-axis inductances based on high frequency voltage injection. The d-and q-axis inductances are changed caused by the stator currents variation, and then the accuracy of the rotor position estimation is affected by the changing inductances. A rotor position estimation method based on PWM carrier frequency component was presented. Taking the 12-slot-10-pole IPMSM prototype as an example, the influence of the saturation saliency and cross coupling saliency on inductance parameters and the position estimation were investigated. The IPMSM model was established considering magnetic saturation and cross coupling saliency, and then the system simulation model and experimental platform were built. The simulation and experimental results prove the correctness of the theoretical analysis.

关 键 词：内置式永磁同步电机 转子位置估算 电感参数 饱和凸极性 交叉耦合凸极性 

分 类 号：TM351[电气工程—电机]