采用直线电机的电梯系统机电动力学模型构建与分析  

Modelling and Analysis of Electromechanical Dynamics of an Elevator System With Linear Motor

作　　者：吴桐 闫军[1] 李炳震 WU Tong;YAN Jun;LI Bingzhen(College of Mechanical Engineering,Inner Mongolia University of Technology,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学机械工程学院,内蒙古呼和浩特010051

出　　处：《机械设计与研究》2022年第6期66-69,共4页Machine Design And Research

基　　金：国家自然科学基金资助项目(51865044);内蒙古自治区自然科学基金资助项目(2018LH05039);内蒙古自治区高等学校科学研究项目(NJZY17096);内蒙古工业大学科学研究基金项目(ZD201602)。

摘　　要：以永磁直线同步电机为研究对象,阐述了此类电梯系统的运行原理、机电动力学以及轿厢的轿架结构。针对电梯系统具有多变量、非线性、强耦合的系统特性,应用拉格朗日—麦克斯韦方程,建立了直线电机电梯系统机电动力学模型及相应的微分方程组。然后通过Clark变换和Park变换,将三相参考系下的方程组变换为d-q两相参考系下的方程组,再利用MATLAB求解该方程组,从而得到相关变量随时间变化的曲线。仿真结果表明该系统机电动力学方程推导正确、合理;满足电梯系统运行要求,为直线电机电梯系统的优化设计提供了参考。Taking a permanent magnet linear synchronous motor as example,the operating principle of the elevator system with the motor,its electromechanical dynamics and the frame structure of the car are introduced.In view of the elevator system being multivariable,nonlinear and with strong coupling system characteristic,using Lagrange-Maxwell equation,the linear motor elevator system electromechanical dynamics model is established and the corresponding differential equations are deduced.Through Clark transform and Park transform,the equations in the three-phase reference frame are transformed into the equations of motion in d-q two-phase reference frame.MATLAB is used to solve the equations to obtain the correlation variable in the time domain.The simulation results show that the established system electromechanical dynamics model is correct,which satisfies the operation requirements.It can be used to guide optimization design of the elevator system with linear motors.

关 键 词：直线电机 机电动力学 拉格朗日—麦克斯韦方程 

分 类 号：TH113.2[机械工程—机械设计及理论]