摘要
在实际工作中,开关变换器易受传导和辐射干扰的影响,因而使其稳定性发生变化。为了研究这种情况,可以构造包含耦合寄生干扰的电路模型。实验表明,随着寄生干扰强度的增大,变换器将产生从间歇分谐波到间歇混沌的变化。另外,对于各种不同的扰动信号波形,如正弦波、矩形波、三角波,它们从间歇分谐波到间歇混沌的变化途径是一致的。
The DC/DC converter is liable to be influenced by conducted and radiated interference,thus the variance of stability will be induced.For the study of these occasions,we can construct a circuit model of voltage controlled Buck converter coupling with spurious signal.With this model a experimental prototype is designed to show that the operation regime of converter will transfer from intermittent subharmonics to intermittent chaos with increasing of the interference intension.Furthermore,the Buck converter will undergo the same operation regime transformation with spurious signal to be sine,square or triangular wave.
出处
《电力电子技术》
CSCD
北大核心
2003年第5期9-11,共3页
Power Electronics
关键词
变换器
电压控制
干扰源/间歇现象
converter
voltage control
interference source/intermittency phenomenon
