A New Hybrid Inductor-Based Boost DC-DC Converter Suitable for Applications in Photovoltaic Systems

Ioana-Monica Pop-Calimanu, Septimiu Lica, Sorin Popescu, Dan Lascu, Ioan Lie and Radu Mirsu
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Ioana-Monica Pop-Calimanu: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania
Septimiu Lica: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania
Sorin Popescu: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania
Dan Lascu: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania
Ioan Lie: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania
Radu Mirsu: Applied Electronics Department, Politehnica University Timişoara, 300006 Timișoara, Romania

Energies, 2019, vol. 12, issue 2, 1-32

Abstract: A new hybrid step-up converter suitable in applications where large conversion ratios are needed is presented. The topology is still simple, containing only one transistor and three diodes. A detailed dc and ac analysis is performed and all design equations are provided. Compared to other topologies of the same type, the proposed converter exhibits lower or equal current and voltage stresses. A state space model is provided including the conduction losses and based on it the audio susceptibility and the control to output function are derived. As the converter is still of second order with the control to output transfer function exhibiting a right half plane zero, controller design is practically the same like in a Boost topology. It is shown how the proposed converter can be used in a photovoltaic system for performing the maximum power point tracking algorithm using the perturb and observe method. All theoretical considerations are verified through simulation and finally validated by practical experiments.

Keywords: Boost DC-DC converter; steady state analysis; state space modeling; simulation; photovoltaic system; maximum power point tracking (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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