An Efficiency-Aware Cooperative Multicharger System for Photovoltaic Energy Harvesting Achieving 14% Efficiency Improvement

Junwon Jeong; Minseob Shim; Junyoung Maeng; Inho Park; Chulwoo Kim

doi:10.1109/TPEL.2019.2939170

An Efficiency-Aware Cooperative Multicharger System for Photovoltaic Energy Harvesting Achieving 14% Efficiency Improvement

Junwon Jeong, Minseob Shim, Junyoung Maeng, Inho Park, Chulwoo Kim

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A high-efficiency multicharger system for photovoltaic energy harvesting is presented in this letter. The multicharger system is widely used for module-integrated converts to offer a good antipartial shading property. The proposed efficiency-aware cooperative control enhances the total power conversion efficiency of the system (η_TOT) by making chargers help each other when there is a difference between the input powers to each charger due to the partial shading. The system is implemented using a 0.5-μm CMOS technology. The η_TOT and the power range (for η_TOT > 80%) are improved by 14% (power difference = 1.082 W) and 0.61 W (lower photovoltaic cell power = 43 mW), respectively.

Original language	English
Article number	8823033
Pages (from-to)	2253-2256
Number of pages	4
Journal	IEEE Transactions on Power Electronics
Volume	35
Issue number	3
DOIs	https://doi.org/10.1109/TPEL.2019.2939170
Publication status	Published - 2020 Mar

Keywords

DC-DC power conversion
energy harvesting (EH)
solar energy

ASJC Scopus subject areas

Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TPEL.2019.2939170

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title = "An Efficiency-Aware Cooperative Multicharger System for Photovoltaic Energy Harvesting Achieving 14% Efficiency Improvement",

abstract = "A high-efficiency multicharger system for photovoltaic energy harvesting is presented in this letter. The multicharger system is widely used for module-integrated converts to offer a good antipartial shading property. The proposed efficiency-aware cooperative control enhances the total power conversion efficiency of the system (ηTOT) by making chargers help each other when there is a difference between the input powers to each charger due to the partial shading. The system is implemented using a 0.5-μm CMOS technology. The ηTOT and the power range (for ηTOT > 80%) are improved by 14% (power difference = 1.082 W) and 0.61 W (lower photovoltaic cell power = 43 mW), respectively.",

keywords = "DC-DC power conversion, energy harvesting (EH), solar energy",

author = "Junwon Jeong and Minseob Shim and Junyoung Maeng and Inho Park and Chulwoo Kim",

note = "Funding Information: Manuscript received July 11, 2019; revised August 12, 2019; accepted August 27, 2019. Date of publication September 2, 2019; date of current version December 13, 2019. This work was supported by the National Research Foundation of Korea funded by the Korea government (MSIT) under Grant 2019R1A2B5B03100756. (Corresponding author: Chulwoo Kim.) The authors are with the Department of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: jjw@kilby.korea.ac.kr; sms@ kilby.korea.ac.kr; mjy@kilby.korea.ac.kr; pih@kilby.korea.ac.kr; ckim@kilby. korea. ac.kr). Publisher Copyright: {\textcopyright} 2019 IEEE.",

year = "2020",

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language = "English",

volume = "35",

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AU - Jeong, Junwon

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AU - Park, Inho

AU - Kim, Chulwoo

N1 - Funding Information: Manuscript received July 11, 2019; revised August 12, 2019; accepted August 27, 2019. Date of publication September 2, 2019; date of current version December 13, 2019. This work was supported by the National Research Foundation of Korea funded by the Korea government (MSIT) under Grant 2019R1A2B5B03100756. (Corresponding author: Chulwoo Kim.) The authors are with the Department of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: jjw@kilby.korea.ac.kr; sms@ kilby.korea.ac.kr; mjy@kilby.korea.ac.kr; pih@kilby.korea.ac.kr; ckim@kilby. korea. ac.kr). Publisher Copyright: © 2019 IEEE.

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N2 - A high-efficiency multicharger system for photovoltaic energy harvesting is presented in this letter. The multicharger system is widely used for module-integrated converts to offer a good antipartial shading property. The proposed efficiency-aware cooperative control enhances the total power conversion efficiency of the system (ηTOT) by making chargers help each other when there is a difference between the input powers to each charger due to the partial shading. The system is implemented using a 0.5-μm CMOS technology. The ηTOT and the power range (for ηTOT > 80%) are improved by 14% (power difference = 1.082 W) and 0.61 W (lower photovoltaic cell power = 43 mW), respectively.

AB - A high-efficiency multicharger system for photovoltaic energy harvesting is presented in this letter. The multicharger system is widely used for module-integrated converts to offer a good antipartial shading property. The proposed efficiency-aware cooperative control enhances the total power conversion efficiency of the system (ηTOT) by making chargers help each other when there is a difference between the input powers to each charger due to the partial shading. The system is implemented using a 0.5-μm CMOS technology. The ηTOT and the power range (for ηTOT > 80%) are improved by 14% (power difference = 1.082 W) and 0.61 W (lower photovoltaic cell power = 43 mW), respectively.

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An Efficiency-Aware Cooperative Multicharger System for Photovoltaic Energy Harvesting Achieving 14% Efficiency Improvement

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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