同步磁阻电机模型参考自适应法无位置传感器控制  

MRAS sensorless control for synchronous reluctance motors

作　　者：杨旭东 王云冲 沈建新[1] YANG Xu-dong;WANG Yun-chong;SHEN Jian-xin(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学电气工程学院

出　　处：《电机与控制学报》2019年第11期1-9,共9页Electric Machines and Control

基　　金：国家自然科学基金(51577165)

摘　　要：针对由于同步磁阻电机(SynRM)铁心饱和(包括直轴与交轴的交叉饱和)现象严重,导致传统无位置传感器控制方法难以实现高性能控制的问题,提出一种考虑铁心饱和现象的基于模型参考自适应法(MRAS)的无位置传感器控制策略。利用有限元仿真软件得到电机若干工况下的电感参数,建立查表数据,运用查表法得到不同工况下的实时电感参数,将该参数应用于模型参考自适应法无位置传感器控制算法中,可以减小铁心饱和对电机无位置传感器控制的影响,实现电机在任意位置起动和宽速度范围稳定运行。仿真与实验验证了所提出无位置传感器控制方法的有效性。A sensorless control strategy based on the model reference adaptive system(MRAS) method was proposed to solve the problem that traditional rotor position sensorless control method can hardly realize high performance because of serious core saturation of synchronous reluctance motor(SynRM),including cross saturation between the d-axis and q-axis. The inductance parameters of the motor under several operation conditions were obtained by finite element simulation software,and the look-up table data were established. The look-up table method was used to obtain the inductance parameters under various operation conditions,the influence of core saturation on the sensorless control of the motor was reduced by applying this parameter to MRAS control algorithm,without a rotor position sensor,was started at a random initial position,and was operated the wide speed range. Simulation and experiment results are presented to verify the proposed sensorless control strategy.

关 键 词：同步磁阻电机 交叉饱和 模型参考自适应系统 无位置传感器控制 闭环起动 

分 类 号：TM341[电气工程—电机]