温度对数控伺服系统的影响分析  

The Analysis of Temperature Influence on CNC Servo System

作　　者：高连生[1] 殷亚国 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《机械设计与制造》2015年第9期166-168,173,共4页Machinery Design & Manufacture

基　　金："高档数控机床与基础制造装备"科技重大专项(2010ZX04014-017)

摘　　要：数控系统采用永磁同步电机作为伺服驱动电机,运用矢量控制方法对电机进行电流、速度和位置的三闭环控制。在分析矢量控制原理和SVPWM原理的基础之上,利用Matlab/Simulink仿真系统搭建了数控伺服系统仿真模型,给定输入信号验证模型正确性;修改模型库文件来对电机模型进行修改,从温度变化对定子电阻和永磁体磁链影响两个方面研究了温度对整个控制系统的影响。研究表明,随着温度升高,在达到给定转速的过程中,转速上升时间增大,三相电流幅值减小。CNC system uses a permanent magnet synchronous motor as servo drive motor, and takesvector control methodas the three close loop motor control system of current, speed and position. On the basis of analyzing the principle of vector control and SVPWM principle, using Matlab/Simulink simulation system to build the CNC servo system, verifying the correctness of the modelbya given input signal. Modifying motor model of library file to provide a new method for the study of temperature or other factoraffects on servo drive system.Studying on the effect of temperature on the whole control system from two aspects of the stator resistance and the permanent magnet flux linkage changesby temperature. The study shows thatwith the increasing of the temperature,the speed rising time increases and the three-phase current amplitude decreases in the process to achieve the specified speed.

关 键 词：永磁同步电机 SVPWM 矢量控制 温度影响 

分 类 号：TH16[机械工程—机械制造及自动化]