电力机车永磁同步电机自适应模糊滑模控制  

Adaptive fuzzy SMC for PMSM on electric locomotives

作　　者：谢程程 张晓雅[1] 王桂荣 XIE Chengcheng;ZHANG Xiaoya;WANG Guirong(Xi’an Railway Vocational and Technical Institute,Xi’an 710600,China;College of Mechanical and Electrical Engineering,China Metrology University,Hangzhou 310018,China)

机构地区：[1]西安铁路职业技术学院,西安710600 [2]中国计量大学机电工程学院,杭州310018

出　　处：《工业仪表与自动化装置》2019年第2期118-120,共3页Industrial Instrumentation & Automation

基　　金：国家自然科学基金资助项目(61640314)

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,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,建立了机车PMSM在d-q坐标系下的数学模型;针对该耦合非线性系统中存在的负载转矩,设计非线性转矩观测器对其实际值进行估计,对观测误差采用自适应模糊逻辑系统进行逼近;依据Lyapunov稳定性理论,构造了基于转矩观测器的自适应模糊滑模控制器。理论分析及仿真结果表明,机车PMSM闭环转速控制系统跟踪误差一致有界,转矩观测误差收敛于0。For the study of speed control precision of 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 wheelset 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 approached by adaptive fuzzy logic system.According to the Lyapunov stability theory,adaptive fuzzy sliding mode controller with NTO was constructed.Theoretical analyses and simulation results demonstrate that the PMSM speed control system on electric locomotives has closed loop bounded error output against unknown time-varying torque whose 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 自适应模糊滑模控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]