基于转差频率控制下高速电主轴建模与矢量控制器的设计与仿真  

Modeling of High-Speed Motorized Spindle and Design and Simulation Research of Vector Controller Based on Slip Frequency Control

作　　者：张珂[1] 刘志学[1] 张丽秀[1] 须颖[1] 吴玉厚[1] 

机构地区：[1]沈阳建筑大学交通与机械工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2012年第6期1114-1120,共7页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(50975182);教育部创新团队计划项目(IRT1160);辽宁省科技攻关计划项目(2011220012);辽宁省自然科学基金项目(20102186)

摘　　要：目的提高高速电主轴运行时的稳定性和可靠性.方法建立了高速电主轴的仿真模型,基于转差频率控制和矢量控制的基本原理,设计了基于转差频率控制的矢量控制器,并利用MATLAB/Simulink进行仿真.结果仿真时,给定速度为3 000 r/min,给定转子磁链值0.128Wb,并在1.5 s时施加3 N.m的负载转矩,仿真结果表明,该控制器可在1 s内使电主轴平滑、稳定、精确地升至给定转速,即使负载转矩施加以后,输出转速依然精确和稳定地保持在3 000r/min,在此控制系统下,电主轴定子磁链轨迹近似为圆形,在一定程度上可减少电压、电流中的谐波,从而减少高速电主轴运行过程中的振动和发热.结论通过仿真验证,将此控制器用于电主轴驱动控制系统是可行的,可满足加工过程对电主轴调速的快速响应要求,并通过此仿真验证了所建立电主轴模型的有效性,解决了电主轴在控制系统中的建模问题.In order to improve the stability and reliability of motorized spindle when it is running,the simulation model of high-speed motorized spindle is built,and slip frequency vector controller is designed based on the basic principles of the slip frequency control and vector control,and then simulation studies is done through MATLAB/Simulink.The given speed is 3 000 r/min,the value of given rotor flux is 0.128 Wb,and then the load torque whose value is 3 N·m is applied when the time is 1.5 s.The simulation results show that the controller can use less than 1s to make the speed of motorized spindle rise to the given speed smoothly,steadily and accurately,and stator flux trajectory of motorized spindle is approximately circular,so the motorized spindle can have less harmonic in voltage and current,thereby it can reduce the vibration and heat when motorized spindle is running.This controller for motorized spindle drive control system is feasible to satisfy the rapid responding requirements of speed control of motorized spindle using for processing,and the effectiveness of the motorized spindle model established in this simulation has been verified.The problem of motorized spindle in the control system modeling is solved through this simulation verification.

关 键 词：电主轴 转差频率 矢量控制 建模 仿真验证 

分 类 号：TH13[机械工程—机械制造及自动化] TM921[电气工程—电力电子与电力传动]