机构地区: 华南理工大学电力学院
出 处: 《华南理工大学学报(自然科学版)》 2002年第12期6-11,共6页
摘 要: 对功率变换器的常用建模方法进行了分析 ,指出其优缺点 ,在此基础上提出直接利用变结构理论对DC_DC变换器进行建模 ,推导出Buck ,Boost ,Buck_Boost变换器基于变结构理论的模型 .最后通过实验电路验证了模型的有效性 。 In this paper, we analyze the modeling method of current_mode controlled buck_boost converter and point out their advantages and limitations, then provide a modeling method of DC_DC converter based on variable structure theory, the models are derived for buck, boost, buck boost converters in continuous conduction mode (CCM) by using variable structure theory. Furthermore, the experimental circuit is built and the experiment results verifies the theoretical analysis. DC_DC converters can be controlled by sliding mode based on these models.
关 键 词: 变结构理论 功率变换器 开关变换器 建模方法 滑模变结构控制
领 域: [电子电信]