Analysis and design of 2 DOF control of push-pull converter used for standalone PV system

This paper proposes a two degree-of-freedom (2 DOF) control of a Push-Pull converter to meet the loop robustness goals as well as to shape the output voltage response according to requirement of a standalone photovoltaic system. The design process of the controller is found effective for a 48V to 44...

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Bibliographic Details
Published inIREC2015 The Sixth International Renewable Energy Congress pp. 1 - 6
Main Authors Kushwaha, Radha, Saha, Tapas Kumar, Barman, Jitesh Chandra, Dey, Jayati
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2015
Subjects
dc-dc converter
Decision support systems
push-pull topology
robust control
solar PV systems
two degree of freedom (2DOF) control
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Summary:This paper proposes a two degree-of-freedom (2 DOF) control of a Push-Pull converter to meet the loop robustness goals as well as to shape the output voltage response according to requirement of a standalone photovoltaic system. The design process of the controller is found effective for a 48V to 445V dc-dc converter with push-pull topology. It is basically a Photovoltaic module fed converter with available battery level voltage in the input. The output is controlled at 445 V and expected to produce constant AC from it using a VSI (voltage source inverter). Simulation results for the converter along with the controller, confirm the system to be able to produce a regulated constant DC output voltage even in the presence of considerable perturbation in load current, change in input voltage and change in internal parameters like inductance and capacitance.
DOI:10.1109/IREC.2015.7110918