DC-to-DC converter with low input current ripple for maximum photovoltaic power extraction

A.H. El Khateb, Nasrudin Abd Rahim, Jeyraj Selvaraj, Barry Williams

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

This paper presents a dc-to-dc converter, which offers continuous input and output energy flow, and low input current ripple, applicable and mandatory for photovoltaic arrays, and maximum power point tracking applications. The PV array yields exponential curves for current and voltage where the maximum power occurs at the curve's mutual knee. Conventional dc-to-dc converters have a relatively high input ripple current which causes high power losses when connected to nonlinear sources like PV arrays. The proposed converter operates with low input current ripple which maximizes the power that can be sourced from the PV array, without the need of any electrolytic filtering capacitance. The effect of the ripple current on the PV array can be significant, and decreases the efficiency of the PV system. The proposed converter employs series input inductance with both input and output continuous energy flow. Converter simulations and experimental results support and extol the system concept.
LanguageEnglish
Pages2246 - 2256
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Volume62
Issue number4
DOIs
Publication statusPublished - 2016

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Inductance
Capacitance
Electric potential

Keywords

  • constant current converters
  • dc-to-dc converters
  • dc-to-dc-power conversion
  • photovoltaic cells
  • switched mode power supplies

Cite this

El Khateb, A.H. ; Rahim, Nasrudin Abd ; Selvaraj, Jeyraj ; Williams, Barry. / DC-to-DC converter with low input current ripple for maximum photovoltaic power extraction. In: IEEE Transactions on Industrial Electronics. 2016 ; Vol. 62, No. 4. pp. 2246 - 2256.
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abstract = "This paper presents a dc-to-dc converter, which offers continuous input and output energy flow, and low input current ripple, applicable and mandatory for photovoltaic arrays, and maximum power point tracking applications. The PV array yields exponential curves for current and voltage where the maximum power occurs at the curve's mutual knee. Conventional dc-to-dc converters have a relatively high input ripple current which causes high power losses when connected to nonlinear sources like PV arrays. The proposed converter operates with low input current ripple which maximizes the power that can be sourced from the PV array, without the need of any electrolytic filtering capacitance. The effect of the ripple current on the PV array can be significant, and decreases the efficiency of the PV system. The proposed converter employs series input inductance with both input and output continuous energy flow. Converter simulations and experimental results support and extol the system concept.",
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DC-to-DC converter with low input current ripple for maximum photovoltaic power extraction. / El Khateb, A.H.; Rahim, Nasrudin Abd ; Selvaraj, Jeyraj; Williams, Barry.

In: IEEE Transactions on Industrial Electronics, Vol. 62, No. 4, 2016, p. 2246 - 2256.

Research output: Contribution to journalArticle

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AU - Rahim, Nasrudin Abd

AU - Selvaraj, Jeyraj

AU - Williams, Barry

N1 - (c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

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AB - This paper presents a dc-to-dc converter, which offers continuous input and output energy flow, and low input current ripple, applicable and mandatory for photovoltaic arrays, and maximum power point tracking applications. The PV array yields exponential curves for current and voltage where the maximum power occurs at the curve's mutual knee. Conventional dc-to-dc converters have a relatively high input ripple current which causes high power losses when connected to nonlinear sources like PV arrays. The proposed converter operates with low input current ripple which maximizes the power that can be sourced from the PV array, without the need of any electrolytic filtering capacitance. The effect of the ripple current on the PV array can be significant, and decreases the efficiency of the PV system. The proposed converter employs series input inductance with both input and output continuous energy flow. Converter simulations and experimental results support and extol the system concept.

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