电力机车PMSM自适应模糊终端滑模控制  

Adaptive Fuzzy Terminal Sliding Mode Control for Permanent Magnetic Synchronous Motor of Electric Locomotives

作　　者：刘芳璇[1] 侯艳[1] 房楠[1] 王晓琴[1] 王桂荣 LIU Fangxuan;HOU Yan;FANG Nan;WANG Xiaoqin;WANG Guirong(College of Railway Power Traction,Xi’an Railway Vocational and Technical Institute,Xi’an 710026,Shaanxi,China;College of Mechanical and Electrical Engineering,China MetrologyUniversity,Hangzhou 310018,Zhejiang,China)

机构地区：[1]西安铁路职业技术学院牵引动力学院,陕西西安710026 [2]中国计量大学机电工程学院,浙江杭州310018

出　　处：《电气传动》2019年第5期13-17,共5页Electric Drive

基　　金：国家自然科学基金资助项目(61640314);浙江省自然科学基金资助项目(LY15F030012);西安铁路职业技术学院2017年度立项课题(XTZY17G01)

摘　　要：为研究牵引工况下电力机车永磁同步电机(PMSM)的转速控制精度,建立了机车PMSM的d-q数学模型;考虑轮轨接触不平顺及车体静载荷在轮对径向产生的未知时变负载转矩,设计非线性转矩观测器(NTO)对其实际值进行估计,采用自适应模糊逻辑系统逼近观测误差的导数;在滑模面中引入类势能函数,并依据Lyapunov稳定性理论,构造了基于NTO的自适应模糊终端滑模控制器。仿真结果表明,机车PMSM转速控制系统一致有界收敛;轴电压、轴电流动态抖振较小;转矩观测误差收敛于0。For the study of speed control precision for permanent magnetic synchronous motor(PMSM)on electric locomotives during traction,a mathematical model of PMSM was established in the d- q coordinate system after considering unknown radially time- varying load torque of wheel- set generated by wheel rail contact irregularity and static weight of locomotive body. Nonlinear torque observer(NTO)was designed to estimate the actual value of the time-varying torque with the observation error derivatives approached by adaptive fuzzy logic system. According to the Lyapunov stability theory,adaptive fuzzy terminal sliding mode controller with NTO was constructed after the introduction of quasi potential energy function in sliding mode surface. Simulation results demonstrate that the PMSM speed control system has uniformly bounded error with slight dynamic buffeting of axle voltage and axle current,and the torque observation error is constricted to 0.

关 键 词：机车永磁同步电机 非线性转矩观测器 自适应模糊逻辑系统 类势能函数 自适应模糊终端滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]