摘要
研究了基于能量函数的永磁同步电机无速度传感器H∞控制问题。为有效控制电机转速,首先对无扰动条件下的永磁同步电机哈密顿模型进行整形,使转速达到期望值。然后,在存在扰动的条件下,设计了一种基于哈密顿函数的H∞控制器。最后,采用基于哈密顿函数的扩张+反馈方法设计了一种观测器,对转子角速度进行测量,实现了无速度传感器整形+H∞控制。仿真结果表明,基于观测器的整形+H∞控制器能实现对角速度的高精度估计,可有效克服扰动,并较好地实现了对电机转速的控制功能。
The speed sensorless H∞control method for PMSM was researched based on the energy function.In order to control the speed of motor rotator effectively,firstly the Hamilton model of the PMSM was shaped when there was not disturbances,and the rotator speed might reach the expected value.When there were disturbances,aH∞controller was designed based on the Hamilton function.An observer was designed using the method of expansion plus feedback based on the Hamilton function and used to measure the angular speed of rotator,and the speed sensorless shape plus H∞control were achieved.The simulation results show that the shape plus H∞ control based on the observer can estimate the angular speed accurately,and restrain the disturbances of system,and control the rotator speed effectively.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2016年第5期583-588,共6页
China Mechanical Engineering
基金
国家自然科学基金委员会与宝钢集团有限公司联合资助项目(U1260203)
河北省自然科学基金资助项目(F2012203088)
关键词
能量函数
永磁同步电机
无速度传感器
H∞控制
energy function
permanent magnet synchronous motor（PMSM）
speed sensorless
H∞ control
