摘要
在矢量控制的基础上,设计了一种永磁同步电动机反步控制器。从永磁同步电动机数学模型出发,根据Lyapunov稳定性原则,通过合理定义虚拟控制量,来保证整个控制系统的全局稳定性,进而导出电机参数的自适应律以及交直轴电压控制律,以实现永磁同步电动机速度稳定跟踪。仿真结果表明,所设计的反步控制器能够实现转速的稳定跟踪,与PI控制相比,可以无超调快速控制,且在抗负载扰动方面具有很强的鲁棒性。
A backstepping controller was designed based on vector control. According to the mathematical model of permanent magnet synchronous motor（ PMSM）,the global stability of the control system was guaranteed by using Lyapunov stability principle,with proper virtual control parameters chosen. Then,the adaptive law of motor parameters and control law of D-axis,Q-axis voltage was given,to achieve the stable speed tracking of PMSM,which was confirmed by simulation results. Simulation results show that compared with PI control,the designed backstepping controller with strong robustness achieves non-overshooting,fast speed control when load disturbance occurs.
出处
《微电机》
2016年第7期50-52,共3页
Micromotors
基金
国家科技重大专项资助(2012ZX04001-051)
关键词
永磁同步电动机
反步控制
速度跟踪
permanent magnet synchronous motors
backstepping control
speed tracking
