基于I/F启动的PMSM无感复合控制方法  

Sensorless composite control method of PMSM based on I/F Starting

作　　者：赵化勇 田伟 吉敬华[1] Zhao Huayong;Tian Wei;Ji Jinghua(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学电气信息工程学院,镇江212013

出　　处：《电子测量技术》2024年第16期41-48,共8页Electronic Measurement Technology

摘　　要：针对永磁同步电机全速域无位置传感器控制,电机起动时观测器位置估算困难的问题。提出一种电流频率比结合龙伯格观测器的无位置传感器控制策略。首先,在低速域中,采用I/F控制启动;在中高速域,引入龙伯格观测器和锁相环进行位置估计。其次,针对两种控制方法之间直接过渡导致的振荡问题,本文提出了新型平滑过渡策略;对于PI调节器存在协调性与抗干扰能力差的问题,引入自抗扰控制并与新型平滑过渡策略相结合,进一步形成一种复合过渡法;最后经过Simulink和电机实验平台的验证,仿真和实验结果显示,复合控制方法过渡过程平稳并且转速超调和误差明显减小。Aiming at the problem of sensorless control in the full speed domain of permanent magnet synchronous motor,it is difficult to estimate the position of the observer when the motor starts.A sensorless control strategy based on current-frequency ratio combined with Romberg observer is proposed.First,in the low-speed domain,I/F control is used to start;in the medium-high speed domain,Romberg observer and phase lock loop are introduced for position estimation.Secondly,to solve the oscillation problem caused by direct transition between two control methods,a new smooth transition strategy is proposed.For the problem of poor coordination and anti-interference ability of PI regulator,ADRC is introduced and combined with a new smooth transition strategy to form a compound transition method.Finally,through Simulink and motor experiment platform verification,simulation and experiment results show that the transition process of the composite control method is stable and the speed overdrive and error are significantly reduced.

关 键 词：I/F控制 龙伯格观测器 平滑切换 全速域无位置传感器控制 自抗扰控制 

分 类 号：TM341[电气工程—电机] TN601[电子电信—电路与系统]