某高速供弹装置用交流伺服驱动控制策略研究  

Control strategies of AC servo drive for high-speed ammunition feeding equipment

作　　者：陈浩[1] 王茂森[1] 

机构地区：[1]南京理工大学机械工程及自动化学院,江苏南京210094

出　　处：《机电工程》2015年第1期67-73,共7页Journal of Mechanical & Electrical Engineering

摘　　要：针对某高速供弹装置用交流伺服驱动的控制策略问题,对PMSM(永磁同步电机)的控制方式FOC(磁场导向控制)和DTC(直接转矩控制)、PMSM数学模型、矢量控制理论以及PMSM"相电流重构"技术等方面进行了研究,对PMSM的FOC和DTC两种主流控制方式以及几种主流的全区域电流采样及相电流重构的方法进行了归纳与比较,选取FOC+SVPWM作为系统的控制方式,提出了一种新的相电流重构的策略"固定时间有效矢量插入法",利用Matlab/Simulink对PMSM的相电流进行仿真分析并搭建实验平台进行测试。研究结果表明,采用"固定时间有效矢量插入法"能够避免PWM的不对称输出,可在全区域内进行电流重构而且电流波形畸变率只有5.35%。实验验证了FOC+SVPWM的控制策略是可行并且正确的,为交流伺服驱动高速供弹装置的进一步研究奠定了良好的基础。Aiming at the control strategy of AC servo drive for high-speed ammunition feeding equipment,field oriented control（ FOC） and direct torque control（ DTC）,permanent magnet synchronous motor（ PMSM） mathematical model,vector control theory and ＂phase current reconstruction＂technology were researched. A new strategy named＂Fixed time effective vector insertion＂was proposed after analyzing some existent methods that make the current reconstruction realized in whole regions. Simulation experiments were carried out in Matlab / Simulink and hardware platform was built for experiments. The results indicate that＂Fixed time effective vector insertion＂can avoid the asymmetry of PWM output,this strategy can realize the current reconstruction in whole regions,the current waveform distortion rate is only 5. 35%. The correctness and the feasibility of the control strategies are verified,And some good foundation is laid for further experiment with AC servo drive for high-speed ammunition feeding equipment.

关 键 词：高速供弹装置 永磁同步电机 交流伺服系统 矢量控制 电流重构 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] TH39[自动化与计算机技术—控制科学与工程]