Two-Tier Converter: A New Structure of High Gain DC-DC Converter with Reduced Voltage Stress

With the advent of distributed generation (DG), the need for efficient power electronic converter is increasing as the incorporation of renewables with battery unit and loads rely heavily on them. This paper suggests an original structure of high-gain DC to DC converter named as “Two-Tier converter” with the reduction in voltage stress. The configuration is resultant of stacking two-stage of the classical boost converter. The voltage gain offered is high for even lower values of duty cycle as the relation of gain is quadratic. Also, the converter current at the input is continuous, and the load configuration offered is grounded. Analysis and operational modes of the proposed converters and effect of the effective series resistance of inductors on voltage gain are presented in detail. A comparative analysis of suggested and new high-gain converters is presented in detail. The suggested configuration is confirmed using detailed simulation studies.

[1]  Sanjeevikumar Padmanaban,et al.  New CUK–SEPIC converter based photovoltaic power system with hybrid GSA–PSO algorithm employing MPPT for water pumping applications , 2020, IET Power Electronics.

[2]  Jiann-Fuh Chen,et al.  Transformerless DC–DC Converters With High Step-Up Voltage Gain , 2009, IEEE Transactions on Industrial Electronics.

[3]  Julio C. Rosas-Caro,et al.  Quadratic boost converter based on stackable switching stages , 2018 .

[4]  Sanjeevikumar Padmanaban,et al.  Closed-Loop Control and Boundary for CCM and DCM of Nonisolated Inverting N× Multilevel Boost Converter for High-Voltage Step-Up Applications , 2020, IEEE Transactions on Industrial Electronics.

[5]  Frede Blaabjerg,et al.  An original transformer and switched-capacitor (T & SC)-based extension for DC-DC boost converter for high-voltage/low-current renewable energy applications: Hardware implementation of a new T & SC boost converter , 2018 .

[6]  Mahajan Sagar Bhaskar,et al.  A Novel Modified Switched Inductor Boost Converter with Reduced Switch Voltage Stress , 2020 .

[7]  F. Blaabjerg,et al.  Distributed Generation: Toward a New Energy Paradigm , 2010, IEEE Industrial Electronics Magazine.

[8]  Fang Lin Luo,et al.  Seven self-lift DC-DC converters, voltage lift technique , 2001 .

[9]  Shih-Ming Chen,et al.  A Cascaded High Step-Up DC–DC Converter With Single Switch for Microsource Applications , 2011, IEEE Transactions on Power Electronics.

[10]  F. Blaabjerg,et al.  Power electronics as efficient interface in dispersed power generation systems , 2004, IEEE Transactions on Power Electronics.

[11]  Mahajan Sagar Bhaskar,et al.  A New Triple-Switch-Triple-Mode High Step-Up Converter With Wide Range of Duty Cycle for DC Microgrid Applications , 2019, IEEE Transactions on Industry Applications.

[12]  Julio C. Rosas-Caro,et al.  A DC-DC multilevel boost converter , 2010 .

[13]  Nikita Gupta,et al.  Design, development, and reliability assessment of dual output converters for SPV based DC nanogrid , 2018 .

[14]  Atif Iqbal,et al.  A New Structure of High Voltage Gain SEPIC Converter for Renewable Energy Applications , 2019, IEEE Access.

[15]  Sanjeevikumar Padmanaban,et al.  High Gain Transformer-Less Double-Duty-Triple-Mode DC/DC Converter for DC Microgrid , 2019, IEEE Access.

[16]  Frede Blaabjerg,et al.  L-L and L-2L Multilevel Boost Converter Topologies with Voltage Multiplier with L-L and L-2L Converter of XY Familiy , 2018, 2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON).

[17]  Nikita Gupta,et al.  Algorithm for islanding detection in photovoltaic generator network connected to low-voltage grid , 2018 .

[18]  Frede Blaabjerg,et al.  A New Voltage Doubler Based DC-DC 2LCm-Y Power Converter Topologies for High-Voltage/Low-Current Renewable Energy Applications , 2018, 2018 IEEE Transportation Electrification Conference and Expo (ITEC).