摘要
随机调制技术作为一种新型的控制技术能够改善电磁兼容性.因其开关函数的随机化特性,将引起系统控制的特殊性,需要对电力电子系统采用这种控制技术进行系统仿真研究.提供了DC_DC变换器使用双因子随机调制技术的系统性能的仿真研究及其WELCH谱估计特性分析,仿真过程通过SIMUUNK实现.
A system performance simulation of DC_DC BOOST converter using the dual randomised factors pulse width modulation technique is put forward. The simulation system block is established based on the average current control technique for the dual randomised switching pulse signal. The system dynamic characteristics employed the dual random modulation is stable and advisable, although the ripple of the output voltage of DC_DC power converter is increased. Simultaneously, the power spectrum estimation of the inductance current shows that the dual random modulation schemes can improve EMC in the power converters.
出处
《三峡大学学报（自然科学版）》
CAS
2004年第2期120-122,共3页
Journal of China Three Gorges University：Natural Sciences
