摘要
着重介绍了SVPWM(空间电压矢量脉宽调制)的基本原理及其仿真和硬件的实现。用Matlab/Simulink工具箱搭建仿真平台,根据SVPWM规律发脉冲使开关管通断,变频器输出PWM波,实现定U/f调速的控制方式,仿真中的异步电动机参数都是实验室电机实际测量值。硬件主系统核心运用TMS320LF2407A的DSP芯片实现,并设计有相应的主回路、触发电路板、采样板等并且软件算法实现SVPWM波。仿真和实验结果表明SVPWM调制方案正确可行,提高了电压利用率及系统的控制精度,算法简单,较易实现。
SVPWM(Space vector pulse width modulate)is a new way of modulation.The basic principle,Matlab simulation and hardware realization are introduced.The simulation flatform is built by Matlab/Simulink toolbook.The parameters of all models are from real system.TMS320LF2407 DSP chip is employed as CPU,which build SVPWM waves.It reduces the veins of system,and improves the precision of the control.
出处
《电气传动自动化》
2009年第1期10-14,共5页
Electric Drive Automation
关键词
SVPWM
变频器
仿真
SVPWM
frequency converter
simulation
