变摩擦负载下直流电机调速系统设计  

Design of DC Motor Speed Control Systemwith Variable Friction Load

作　　者：薛振洲[1] Xue Zhenzhou(Department of railway power traction,Xi’an railway vocational and technical college,Xi’an Shaanxi,710026)

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

出　　处：《电子测试》2019年第9期54-56,共3页Electronic Test

基　　金：国家自然科学基金资助项目(61640314)

摘　　要：针对直流力矩电机(DCTM)控制系统在实际运行过程中存在变摩擦负载的问题,利用遗传算法的优点,提出了基于Stribeck摩擦模型的遗传算法二次优化控制方案.在分析DCTM数学模型基础上,运用MATLAB/Simulink对DCTM的位置、速度、电流三闭控制速系统进行建模和仿真,并与采用常规PID算法的系统进行了比较.仿真结果表明,与常规PID控制相比,基于Stribeck摩擦模型的二次遗传算法优化后的系统对输入信号能够无偏跟踪.A quadratic optimal control program of genetic algorithm based on the Stribeck friction model is proposed by using the advantage of genetic algorithm for the variable friction load existed during the actual operation in the DC torque motor control system.Based on the DCTM model,the system of thee-closed loop control of position,speed and current is modeled and simulated on the basis of MATLAB/Simulink and compared with normal PID’s.The simulation demonstrates that the quadratic optimized control system based on the Stribeck friction model can unbiasedly track the input signal,which is better than PID’s.

关 键 词：直流力矩电机 Stribeck摩擦模型 二次遗传算法优化 

分 类 号：TM33[电气工程—电机]