摘要
为了实现永磁同步电机(PMSM)转子位置角的快速、精确控制,提出一种基于改进型自抗扰控制技术(ADRC)的新型位置角控制策略。首先设计一个原点周围平滑性和连续性更好的新型非线性函数。基于该非线性函数设计了转子位置角控制系统的改进型扩张状态观测器(ESO)和改进型非线性误差反馈控制律(NLSEF)。改进型ESO用来观测位置角控制系统的内部状态和扩张状态,扩张状态由非线性因素、内部模型不确定性和外部扰动组成。改进型NLSEF用来抑制残余误差,提供最优位置控制律。最后对基于改进型ADRC的PMSM位置角控制系统进行了仿真分析和实验验证,结果表明在PMSM位置角控制中,改进型ADRC比传统控制策略具有更好的抗干扰能力和鲁棒性。
A control strategy based on an improved active disturbance rejection control(ADRC)is designed to control the rotor position of permanent magnet synchronous motor(PMSM)rapidly and accurately.Firstly,a nonlinear function which exhibited better continuity and smoothness around the origin was designed.Secondly,an improved extended state observer(ESO)and nonlinear state error feedback(NLSEF)were designed based on this nonlinear function.The improved ESO was utilized to observe the state extended by nonlinear factors,model uncertainty,and external disturbances.The improved NLSEF was used to restrain the residual errors of the position and provide optimal position control law.Finally,simulations and experiments were carried out on the PMSM position control system based on the improved ADRC and results show that the improved ADRC exhibits better robustness and antiinterference ability than traditional control strategy.
作者
刘丙友
竺长安
郭兴众
孟一博
LIU Bing-you;ZHU Chang-an;GU0 Xing-zhong;MENG Yi-bo(Laboratory of Detection Technology and Energy Saving Equipment, Anhui Polytechnic University, Wuhu 241000, China;Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2017年第12期24-33,共10页
Electric Machines and Control
基金
安徽省教育厅自然科学研究重点项目(KJ2015A316)
"控制科学与工程"安徽省重大建设学科项目
安徽省科技攻关项目(1408085ME105)
安徽工程大学检测技术与节能装置安徽省重点实验开放基金(2017070503B026-A02)
关键词
改进型自抗扰控制
转子位置角控制
非线性函数
永磁同步电机
improved active disturbance rejection control
rotor position angle control
nonlinear function
permanent magnet synchronous motors
