摘要
针对传统升压变换器存在升压能力有限、电容电压应力大等问题,提出了一种采用2个准Z源网络级联的升压型DC-DC变换器,分析了该变换器的工作原理,推导了该变换器升压比、电容电压应力的表达式。与传统Z源升压变换器相比,该变换器可在占空比小的情况下实现更大的升压比,且在升压比相同的情况下具有更小的电容电压应力。仿真和实验结果验证了理论分析的正确性。
For problems of traditional boost converter including limited boost ability and high capacitor voltage stress, a boost DC-DC converter was proposed which used two quasi-Z-source networks in cascade. Working process of the converter was analyzed, and expressions of step-up ratio and capacitor voltage stress were derived. Compared with traditional Z-source boost converter, the quasi-Z-source converter can realize larger step-up ratio with small duty cycle,＂ and has lower capacitor voltage stress under the same step-up ratio. The simulation and experimental results verify validity of the theoretical analysis.
作者
房绪鹏
马伯龙
董召龙
郭久红
高冠中
FANG Xupeng MA Bolong DONG Zhaolong GUO Jiuhong GAO Guanzhong(College of Electrical Engineering and Automation, Shandong University ofScience and Technology, Qingdao 266590, Chin)
出处
《工矿自动化》
北大核心
2017年第4期68-71,共4页
Journal Of Mine Automation
基金
山东省自然科学基金资助项目(ZR2009FM017)
中国博士后科学基金资助项目(20090461254)
山东科技大学研究生教育创新计划资助项目(2014BK023)
