摘要
提出了一种峰值型不对称规则正弦脉宽调制(Sine Pulse Width Modulation,简称SPWM)采样方式,使得脉冲宽度较传统不对称规则采样更接近于自然采样,而且在数字控制算法中只需在每个载波周期进行一次采样便可实现,弥补了传统不规则采样方法的不足。给出了一种利用MATLAB软件中Simulink工具对该采样方式进行仿真的方法,该方法简单且通用性强。仿真和实验波形均表明了这种新型采样方式的优越性。
A nonsymmetrical rules peak sampling method,which enables the width of pulse closer to the nature sampling method is presented.Moreover,this novel sampling method could be implemented in digital controller with only one sample in every carrier wave cycle,which is better than traditional sampling methods.What＇s more,the paper presents a simulation method on the peak sampling method with Simulink,which is easy and well adapted to many occasions.The simulative results and the experimental tests verify the effectiveness of the proposed sampling method.
出处
《电力电子技术》
CSCD
北大核心
2007年第4期93-95,共3页
Power Electronics
关键词
逆变器
脉宽调制
数字控制
inverter
pulse width modulation
digital control
