摘要
采用平均开关模型方法建立了CCMBoost变换器的小信号模型,得到了相应的交流小信号传递函数。由于传递函数中存在S平面右半平面的零点,使得系统成为非最小相位系统。利用SG3525实现有源超前滞后补偿网络对系统进行了校正,实验结果验证了模型和控制方法的合理性。
For the non-linear,time-varying and periodic Boost DC-DC converter, the small-singal models are set up with average switching-mode, and the AC small-signal transfer funcations are deduced. Transfer funcation exists a zero of right half S surface, so the system becomes non-mininum phase system. The active lead-lag compensation net is made up of SG3525 to correct the closed system. The experimental results show that the models and control method are rationality.
出处
《电子技术应用》
北大核心
2008年第4期60-62,共3页
Application of Electronic Technique
