Analysis and Design of Single Switch Hybrid Step-Up Converter  

作　　者：Ravivarman Shanmugasundaram Jeyabharath Rajaiah Veena Parasunath Ravivarman Shanmugasundaram;Jeyabharath Rajaiah;Veena Parasunath(Department of EEE, K. S. Rangasamy College of Technology, Tamilnadu, India;Department of EEE, KSR Institute for Engineering and Technology, Tamilnadu, India)

机构地区：[1]Department of EEE, K. S. Rangasamy College of Technology, Tamilnadu, India [2]Department of EEE, KSR Institute for Engineering and Technology, Tamilnadu, India

出　　处：《Circuits and Systems》2016年第4期211-221,共11页电路与系统（英文）

摘　　要：A Single Switch Hybrid Step-up Converter with high voltage gain, which is suitable for renewable energy system, is proposed in this paper. The proposed converter consists of one switched diode-inductor cell and a capacitor. While switching, both are charged in parallel from the input source and discharged in series to the output. In order to obtain extra voltage gain at lower duty cycle, the voltage multiplier cell is integrated with the proposed converter. The main advantages of the converter are high voltage gain, reduced voltage stress, simple structure and low output voltage ripples. The operating principle and steady state theoretical analysis are presented. A 250 W prototype converter is implemented with 12 V input and 120 V output to verify the design and analysis of this converter and it has an efficiency of over 90% in all operations.A Single Switch Hybrid Step-up Converter with high voltage gain, which is suitable for renewable energy system, is proposed in this paper. The proposed converter consists of one switched diode-inductor cell and a capacitor. While switching, both are charged in parallel from the input source and discharged in series to the output. In order to obtain extra voltage gain at lower duty cycle, the voltage multiplier cell is integrated with the proposed converter. The main advantages of the converter are high voltage gain, reduced voltage stress, simple structure and low output voltage ripples. The operating principle and steady state theoretical analysis are presented. A 250 W prototype converter is implemented with 12 V input and 120 V output to verify the design and analysis of this converter and it has an efficiency of over 90% in all operations.

关 键 词：DC-DC Power Conversion Switched-Inductor Step-Up Converter Voltage Multiplier 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]