摘要
深入分析了三相电压型PWM整流器四象限运行时的电压需求,给出了SVPWM调制下的最大线性运行区域。针对初始浪涌电流冲击和负载扰动,提出一种基于I-P控制的改进型负载电流前馈的双闭环控制策略。利用MATLAB/Simulink仿真环境,根据伺服电机系统不同工况时的负载特点,对系统进行了全面的仿真实验,最后对动静态性能做出客观评价。
The four quadrant operating condition of three-phase voltage source PWM rectifier was analyzed deeply,and the maximum linear control range under SVPWM method was given.For surge current and load disturbance suppression,an improved current feed-forward control strategy based on I-P controller was proposed.According to the load features of servo system under different operating conditions,the proposed system was simulated in MATLAB/Simulink,and numerous results were given in details.At last,performance of the proposed system was evaluated.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2011年第6期1278-1283,共6页
Journal of System Simulation