【作者】 刘志刚； 李世华；

【Author】 Liu Zhigang,Li Shihua College of Automaton,Southeast University Nanjing 210096,P.R.China

【机构】 东南大学自动化学院；

【摘要】 用自抗扰控制(ADRC)技术设计永磁同步电机(PMSM)调速系统的控制器时,通常根据速度输出方程将速度环控制器设计成一阶自抗扰控制器.这种设计利用了速度调节器的输出(即电流PI调节器的给定)来近似代替实际的q轴定子电流.一阶自抗扰控制器无法对这种近似进行补偿,使得闭环系统难以获得更为优异的性能.本文针对这个问题,通过对速度输出方程的分析,提出一种新的二阶自抗扰调速控制解决方案.仿真结果表明,该方案使得闭环系统具有更强的抗扰动性能,而且具有更平缓的速度响应和更小的超调.更多还原

【Abstract】 When designing the controller by using active disturbance rejection control(ADRC)techniques for the permanent magnetic synchronous motor(PMSM)speed-regulation system,the speed controller is designed to be a one-order ADRC ac-cording to the speed output equation.This design employs the output of the speed regulator,i.e.,the input of the current regu-lator,to approximately replace the real q-axis stator current.The one-order ADRC can not compensate this approximation,which makes it difficult for the closed loop system to obtain excellent performance.Considering this problem,a new two-order ADRC scheme is proposed in this paper based on the analysis of speed output equation.Simulation results indicate that under this scheme the closed loop system can have stronger anti-disturbance ability,more smooth speed response and less overshoots..更多还原