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A single stage coupled inductor based high gain DC-AC buck-boost inverter for photovoltaic (PV) applications
Published in Institute of Electrical and Electronics Engineers Inc.
2015
Abstract
Normally, a two stage power conversion system is used to convert a low dc voltage to high amplitude ac voltage. These two stage power conversion systems are very bulky, more complex in control and less efficient, etc when they are used, especially for low input dc voltages. In this paper a high gain dc-ac inverter topology is presented, which can produce an instantaneous output voltage higher or lower than the input dc voltage without any intermediate power conversion stage or transformers. Coupled inductor is used in this circuit in order to achieve high gain. The two stage power conversion will be done in a single stage by this converter. The proposed topology posses several desirable features like high gain, less loss and less size etc. The various modes of operation and steady state analysis of the proposed topology are presented. The proposed topology is simulated using MATLAB/SIMULINK, simulation results are presented to validate the proposed idea. © 2015 IEEE.
About the journal
JournalData powered by Typeset2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
Open AccessNo
Concepts (13)
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    Dc transformers
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    Electric inductors
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    MATLAB
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    Topology
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    Buck-boost
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    Grid-connected
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    Inverter
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    Modes of operation
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    Power conversion stages
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    POWER CONVERSION SYSTEMS
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    Single stage
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    Steady-state analysis
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    Electric inverters