Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter

Jae Heon Choi; Ui Min Choi

doi:10.23919/ICPE2023-ECCEAsia54778.2023.10213720

Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter

Jae Heon Choi
, Ui Min Choi

Media IT Engineering Program

Seoul National University of Science and Technology (SNUST)

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

1 Scopus citations

Abstract

Power devices and DC-link capacitors are considered reliability-critical components in power converters. Thermal stress caused by power loss leads to wear-out failures of DC-link capacitors and power devices. Previous studies have proposed various PWM methods to reduce the thermal stress of DC-link capacitors and power devices, respectively. However, the existing methods did not consider the reduction of thermal stress of DC-link capacitors and power devices simultaneously. This paper proposes the PWM method for improving the reliability of the NPC inverter by decreasing the thermal stress of DC-link capacitors and power devices concurrently. Through the simulations and experiments, the feasibility and effectiveness of the proposed PWM method are verified.

Original language	English
Title of host publication	ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication	Green World with Power Electronics
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3173-3178
Number of pages	6
ISBN (Electronic)	9788957083505
DOIs	https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213720
State	Published - 2023
Event	11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia - Jeju, Korea, Republic of Duration: 22 May 2023 → 25 May 2023

Publication series

Name	ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics

Conference

Conference	11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia
Country/Territory	Korea, Republic of
City	Jeju
Period	22/05/23 → 25/05/23

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

3-level NPC inverter
photovoltaic
pulse width modulation
reliability

Access to Document

10.23919/ICPE2023-ECCEAsia54778.2023.10213720

Cite this

Choi, J. H., & Choi, U. M. (2023). Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter. In ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics (pp. 3173-3178). (ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213720

Choi, Jae Heon ; Choi, Ui Min. / Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter. ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics. Institute of Electrical and Electronics Engineers Inc., 2023. pp. 3173-3178 (ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics).

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title = "Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter",

abstract = "Power devices and DC-link capacitors are considered reliability-critical components in power converters. Thermal stress caused by power loss leads to wear-out failures of DC-link capacitors and power devices. Previous studies have proposed various PWM methods to reduce the thermal stress of DC-link capacitors and power devices, respectively. However, the existing methods did not consider the reduction of thermal stress of DC-link capacitors and power devices simultaneously. This paper proposes the PWM method for improving the reliability of the NPC inverter by decreasing the thermal stress of DC-link capacitors and power devices concurrently. Through the simulations and experiments, the feasibility and effectiveness of the proposed PWM method are verified.",

keywords = "3-level NPC inverter, photovoltaic, pulse width modulation, reliability",

author = "Choi, \{Jae Heon\} and Choi, \{Ui Min\}",

note = "Publisher Copyright: {\textcopyright} 2023 The Korean Institute of Power Electronics.; 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia ; Conference date: 22-05-2023 Through 25-05-2023",

year = "2023",

doi = "10.23919/ICPE2023-ECCEAsia54778.2023.10213720",

language = "English",

series = "ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics",

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

pages = "3173--3178",

booktitle = "ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia",

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Choi, JH & Choi, UM 2023, Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter. in ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics. ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics, Institute of Electrical and Electronics Engineers Inc., pp. 3173-3178, 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia, Jeju, Korea, Republic of, 22/05/23. https://doi.org/10.23919/ICPE2023-ECCEAsia54778.2023.10213720

Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter. / Choi, Jae Heon; Choi, Ui Min.
ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics. Institute of Electrical and Electronics Engineers Inc., 2023. p. 3173-3178 (ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics).

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

TY - GEN

T1 - Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter

AU - Choi, Jae Heon

AU - Choi, Ui Min

PY - 2023

Y1 - 2023

N2 - Power devices and DC-link capacitors are considered reliability-critical components in power converters. Thermal stress caused by power loss leads to wear-out failures of DC-link capacitors and power devices. Previous studies have proposed various PWM methods to reduce the thermal stress of DC-link capacitors and power devices, respectively. However, the existing methods did not consider the reduction of thermal stress of DC-link capacitors and power devices simultaneously. This paper proposes the PWM method for improving the reliability of the NPC inverter by decreasing the thermal stress of DC-link capacitors and power devices concurrently. Through the simulations and experiments, the feasibility and effectiveness of the proposed PWM method are verified.

AB - Power devices and DC-link capacitors are considered reliability-critical components in power converters. Thermal stress caused by power loss leads to wear-out failures of DC-link capacitors and power devices. Previous studies have proposed various PWM methods to reduce the thermal stress of DC-link capacitors and power devices, respectively. However, the existing methods did not consider the reduction of thermal stress of DC-link capacitors and power devices simultaneously. This paper proposes the PWM method for improving the reliability of the NPC inverter by decreasing the thermal stress of DC-link capacitors and power devices concurrently. Through the simulations and experiments, the feasibility and effectiveness of the proposed PWM method are verified.

KW - 3-level NPC inverter

KW - photovoltaic

KW - pulse width modulation

KW - reliability

UR - https://www.scopus.com/pages/publications/85170644608

U2 - 10.23919/ICPE2023-ECCEAsia54778.2023.10213720

DO - 10.23919/ICPE2023-ECCEAsia54778.2023.10213720

M3 - Conference contribution

AN - SCOPUS:85170644608

T3 - ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics

SP - 3173

EP - 3178

BT - ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia

Y2 - 22 May 2023 through 25 May 2023

ER -

Choi JH, Choi UM. Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter. In ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics. Institute of Electrical and Electronics Engineers Inc. 2023. p. 3173-3178. (ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics). doi: 10.23919/ICPE2023-ECCEAsia54778.2023.10213720

Pulse Width Modulation Method for Reliability Improvement of DC-link Capacitors and Power Devices of NPC Inverter

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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