A new quadratic boost converter with high voltage step-up ratio and reduced voltage stress

In this paper, a new quadratic boost converter is proposed. Compared with the conventional quadratic boost converter, the new quadratic boost converter employs an additional capacitor-inductor-diode (CLD) cell consisting of an inductor, two diodes and two capacitors. The quadratic boost converter with CLD cell presented in this paper shows an improvement of the voltage step-up ratio over the conventional quadratic boost converter and boost converter. Consequently, it is well suited for extreme high voltage step-up ratio applications. The quadratic boost converter with CLD cell also shows a significant improvement in reduced voltage stresses of switch and diodes over the conventional quadratic boost converter and boost converter. The experimental results of the proposed converter have been presented to verify the analysis results.

[1]  Liu Jie,et al.  Research on maximum power point tracking control based on the low power photovoltaic gridconnected inverter , 2009, 2009 IEEE 6th International Power Electronics and Motion Control Conference.

[2]  M.G. Ortiz-Lopez,et al.  The effect of ESR of the capacitors on modeling of a quadratic boost converter , 2008, 2008 11th Workshop on Control and Modeling for Power Electronics.

[3]  O. Garcia,et al.  Dynamic Analysis of a Boost Converter With Ripple Cancellation Network by Model-Reduction Techniques , 2009, IEEE Transactions on Power Electronics.

[4]  R. Gemmen.  Analysis for the Effect of Inverter Ripple Current on Fuel Cell Operating Condition , 2001, Heat Transfer: Volume 4 — Combustion and Energy Systems.

[5]  Koosuke Harada,et al.  The Cascade Connection of Switching Regulators , 1976, IEEE Transactions on Industry Applications.

[6]  Adrian Ioinovici,et al.  Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[7]  Dragan Maksimovic,et al.  Switching converters with wide DC conversion range , 1991 .

[8]  I. Barbi,et al.  A New Quadratic, Three-Level, DC/DC Converter Suitable for Fuel Cell Applications , 2007, 2007 Power Conversion Conference - Nagoya.

[9]  Gerard Champenois,et al.  Performance analysis of transformless single switch quadratic boost converter for grid connected photovoltaic systems , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[10]  Jesus Leyva-Ramos,et al.  Multiloop controller design for a quadratic boost converter , 2007 .

[11]  M.G. Ortiz-Lopez,et al.  Current-Mode Control for a Quadratic Boost Converter with a Single Switch , 2007, 2007 IEEE Power Electronics Specialists Conference.

[12]  Jianping Xu.  Modelling of switching DC-DC converters by time-averaging equivalent circuit approach Part 2. Discontinuous conduction mode , 1993 .

[13]  Esam H. Ismail.  Large step-down DC-DC converters with reduced current stress , 2009 .

[14]  Jesus Leyva-Ramos,et al.  Switching regulator using a quadratic boost converter for wide DC conversion ratios , 2009 .