摘要
将模型参考自适应状态观测器和空间矢量脉宽调制技术应用于永磁同步电机无速度传感器矢量控制中。根据永磁同步电机的数学模型,设计了一个模型参考自适应状态观测器用于估算电机转子速度,建立其自适应规律,并采用Popov理论对其稳定性进行了分析。系统采用空间矢量脉宽调制技术以减小转矩脉动,仿真结果表明,模型参考自适应状态观测器能够在较广速度范围内追踪转子实际位置,实现对转子转速的观测,从而实现了永磁同步电机的无速度传感器磁场定向控制。
This paper implemented the MRAS observer and space-vector pulse width modulation in the sensorless vector-control method of perma- nent magnet synchronous motor（PMSM）. And designed an observer to estimate the information of rotor speed according the mathematic model of PMSM. Established the adaptive rule and analysed the stability using Popov principle. Adopted the SVPWM in the system to reduce the torque ripple. The emulation result showed the MRAS observer was able to track the real speed of rotor in a wide range of speed to realize the sensorless vector field-oriented control of PMSM.
出处
《电气自动化》
2010年第1期10-12,共3页
Electrical Automation
基金
上海市教委重点学科建设项目资助(J51301)
