Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency

Million Gerado Geda; Huigyeong Song; Ba Phu Do; Sewan Choi

doi:10.1109/IPEMC-ECCEAsia60879.2024.10567907

Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency

Million Gerado Geda
, Huigyeong Song
, Ba Phu Do
, Sewan Choi

Dept. of Electrical and Information Engineering

Department of Electrical and Information Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

This paper presents a modulation scheme that utilizes adaptive switching frequency (f_sw) to enhance light load efficiency performance for a single-stage stage AC to DC converter. Single-stage converters operate with hard switching during light load operations, leading to significant switching losses and Electro Magnetic Interference (EMI). This situation is severe with low voltage gain or low battery voltage. In addition, a single-stage converter experiences low total harmonic distortion (THD) at light load operation. The proposed modulation scheme improved the light-load efficiency, and power quality of the conversion. Experiment results from a 3.7 kW single-stage OBC prototype are provided to verify the theoretical claims at various load levels. The proposed method is good for Battery Energy Storage Systems (BESS) and photovoltaic (PV) applications where various levels of load conversion may be involved.

Original language	English
Title of host publication	2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2051-2055
Number of pages	5
ISBN (Electronic)	9798350351330
DOIs	https://doi.org/10.1109/IPEMC-ECCEAsia60879.2024.10567907
State	Published - 2024
Event	10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia - Chengdu, China Duration: 17 May 2024 → 20 May 2024

Publication series

Name	2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

Conference

Conference	10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Country/Territory	China
City	Chengdu
Period	17/05/24 → 20/05/24

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Adaptive Switching Frequency
and Single-Stage AC-DC Converter
Light Load Efficiency

Access to Document

10.1109/IPEMC-ECCEAsia60879.2024.10567907

Cite this

Geda, M. G., Song, H., Do, B. P., & Choi, S. (2024). Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency. In 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia (pp. 2051-2055). (2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPEMC-ECCEAsia60879.2024.10567907

Geda, Million Gerado ; Song, Huigyeong ; Do, Ba Phu et al. / Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency. 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2024. pp. 2051-2055 (2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia).

@inproceedings{9f1a04b8b3b54e17874e07befdb870ad,

title = "Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency",

abstract = "This paper presents a modulation scheme that utilizes adaptive switching frequency (fsw) to enhance light load efficiency performance for a single-stage stage AC to DC converter. Single-stage converters operate with hard switching during light load operations, leading to significant switching losses and Electro Magnetic Interference (EMI). This situation is severe with low voltage gain or low battery voltage. In addition, a single-stage converter experiences low total harmonic distortion (THD) at light load operation. The proposed modulation scheme improved the light-load efficiency, and power quality of the conversion. Experiment results from a 3.7 kW single-stage OBC prototype are provided to verify the theoretical claims at various load levels. The proposed method is good for Battery Energy Storage Systems (BESS) and photovoltaic (PV) applications where various levels of load conversion may be involved.",

keywords = "Adaptive Switching Frequency, and Single-Stage AC-DC Converter, Light Load Efficiency",

author = "Geda, \{Million Gerado\} and Huigyeong Song and Do, \{Ba Phu\} and Sewan Choi",

note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia ; Conference date: 17-05-2024 Through 20-05-2024",

year = "2024",

doi = "10.1109/IPEMC-ECCEAsia60879.2024.10567907",

language = "English",

series = "2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "2051--2055",

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}

Geda, MG, Song, H, Do, BP & Choi, S 2024, Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency. in 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia. 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia, Institute of Electrical and Electronics Engineers Inc., pp. 2051-2055, 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia, Chengdu, China, 17/05/24. https://doi.org/10.1109/IPEMC-ECCEAsia60879.2024.10567907

Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency. / Geda, Million Gerado; Song, Huigyeong; Do, Ba Phu et al.
2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2024. p. 2051-2055 (2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency

AU - Geda, Million Gerado

AU - Song, Huigyeong

AU - Do, Ba Phu

AU - Choi, Sewan

PY - 2024

Y1 - 2024

N2 - This paper presents a modulation scheme that utilizes adaptive switching frequency (fsw) to enhance light load efficiency performance for a single-stage stage AC to DC converter. Single-stage converters operate with hard switching during light load operations, leading to significant switching losses and Electro Magnetic Interference (EMI). This situation is severe with low voltage gain or low battery voltage. In addition, a single-stage converter experiences low total harmonic distortion (THD) at light load operation. The proposed modulation scheme improved the light-load efficiency, and power quality of the conversion. Experiment results from a 3.7 kW single-stage OBC prototype are provided to verify the theoretical claims at various load levels. The proposed method is good for Battery Energy Storage Systems (BESS) and photovoltaic (PV) applications where various levels of load conversion may be involved.

AB - This paper presents a modulation scheme that utilizes adaptive switching frequency (fsw) to enhance light load efficiency performance for a single-stage stage AC to DC converter. Single-stage converters operate with hard switching during light load operations, leading to significant switching losses and Electro Magnetic Interference (EMI). This situation is severe with low voltage gain or low battery voltage. In addition, a single-stage converter experiences low total harmonic distortion (THD) at light load operation. The proposed modulation scheme improved the light-load efficiency, and power quality of the conversion. Experiment results from a 3.7 kW single-stage OBC prototype are provided to verify the theoretical claims at various load levels. The proposed method is good for Battery Energy Storage Systems (BESS) and photovoltaic (PV) applications where various levels of load conversion may be involved.

KW - Adaptive Switching Frequency

KW - and Single-Stage AC-DC Converter

KW - Light Load Efficiency

UR - https://www.scopus.com/pages/publications/85199019887

U2 - 10.1109/IPEMC-ECCEAsia60879.2024.10567907

DO - 10.1109/IPEMC-ECCEAsia60879.2024.10567907

M3 - Conference contribution

AN - SCOPUS:85199019887

T3 - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

SP - 2051

EP - 2055

BT - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

Y2 - 17 May 2024 through 20 May 2024

ER -

Geda MG, Song H, Do BP, Choi S. Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency. In 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia. Institute of Electrical and Electronics Engineers Inc. 2024. p. 2051-2055. (2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia). doi: 10.1109/IPEMC-ECCEAsia60879.2024.10567907

Light Load Efficiency Enhancement Strategy for Single-Stage AC-DC by Using Adaptive Switching Frequency

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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