摘要
针对目前永磁同步电机的驱动需要采用机械传感器来检测转子的速度和磁极位置,增加了控制系统的复杂性和成本,降低了系统的可靠性,提出了一种基于模型参考自适应的无传感器控制策略。参考模型和可调模型被相同的外部输入所激励,将其比较后的差值矢量输入自适应机构,由自适应机构来调节可调模型的参数,使差值矢量趋近于零,可调模型的转速趋近于参考模型的转速,从而达到速度观测的目的。仿真结果验证了该方法的有效性。
The drive of permanent magnet synchronous motor needs using the mechanical sensor to detect the speed and position of the rotor. Thus,the complexity and cost of the control system are increased,and the reliability of the system is reduced. An adaptive speed-sensorless control strategy based on the model reference is proposed. The reference model and the adjustable model are excited by the same external input. The difference vector got through the comparison is input to the adaptive mechanism which regulates the parameters of the adjustable model to make the vector difference approach zero. Thus,the speed of the adjustable model tends to be close to the speed of the reference model so as to achieve the speed observation. Simulation results show the effectiveness of the proposed method.
出处
《仪表技术》
2016年第11期41-46,共6页
Instrumentation Technology
关键词
六相永磁同步电机
模型参考自适应
无传感器
差值矢量
six phase permanent magnet synchronous
model reference adaptive
sensorless
difference vector
