JP7626328B2 - 電力変換装置、及びスイッチング素子の故障診断方法 - Google Patents

電力変換装置、及びスイッチング素子の故障診断方法 Download PDF

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Publication number
JP7626328B2
JP7626328B2 JP2023532935A JP2023532935A JP7626328B2 JP 7626328 B2 JP7626328 B2 JP 7626328B2 JP 2023532935 A JP2023532935 A JP 2023532935A JP 2023532935 A JP2023532935 A JP 2023532935A JP 7626328 B2 JP7626328 B2 JP 7626328B2
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Prior art keywords
voltage
switching element
test pulse
neutral point
positive electrode
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Japanese (ja)
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JPWO2023281643A5 (https=
JPWO2023281643A1 (https=
Inventor
光貴 森崎
海青 李
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TMEIC Corp
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TMEIC Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
JP2023532935A 2021-07-07 2021-07-07 電力変換装置、及びスイッチング素子の故障診断方法 Active JP7626328B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/025558 WO2023281643A1 (ja) 2021-07-07 2021-07-07 電力変換装置、及びスイッチング素子の故障診断方法

Publications (3)

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JPWO2023281643A1 JPWO2023281643A1 (https=) 2023-01-12
JPWO2023281643A5 JPWO2023281643A5 (https=) 2023-07-21
JP7626328B2 true JP7626328B2 (ja) 2025-02-07

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JP2023532935A Active JP7626328B2 (ja) 2021-07-07 2021-07-07 電力変換装置、及びスイッチング素子の故障診断方法

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US (1) US12301130B2 (https=)
JP (1) JP7626328B2 (https=)
CN (1) CN116325473A (https=)
WO (1) WO2023281643A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12316243B2 (en) * 2020-04-30 2025-05-27 Tmeic Corporation Power converter and failure analysis method
CN119543682B (zh) * 2024-09-30 2025-12-09 华为数字能源技术有限公司 功率变换器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003033045A (ja) 2001-07-10 2003-01-31 Mitsubishi Electric Corp インバータ装置
JP2013176240A (ja) 2012-02-27 2013-09-05 Toshiba Mitsubishi-Electric Industrial System Corp 電力変換装置
JP2020072503A (ja) 2018-10-29 2020-05-07 富士電機株式会社 電力変換装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008312403A (ja) * 2007-06-18 2008-12-25 Toshiba Corp 電力変換装置
JP5661694B2 (ja) 2012-08-02 2015-01-28 東芝三菱電機産業システム株式会社 多レベル電力変換装置
JP2015008611A (ja) * 2013-06-26 2015-01-15 オムロンオートモーティブエレクトロニクス株式会社 Ｄｃ−ｄｃコンバータ
JP6396177B2 (ja) 2014-11-05 2018-09-26 三菱重工サーマルシステムズ株式会社 故障検出装置、それを備えた空気調和装置、及び故障検出方法並びにプログラム
JP6699253B2 (ja) 2016-03-10 2020-05-27 富士電機株式会社 電力変換装置、スイッチング素子の短絡故障診断方法およびスイッチング素子のオープン故障診断方法
CN112042100B (zh) * 2018-11-28 2024-06-25 株式会社Tmeic 电力转换装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003033045A (ja) 2001-07-10 2003-01-31 Mitsubishi Electric Corp インバータ装置
JP2013176240A (ja) 2012-02-27 2013-09-05 Toshiba Mitsubishi-Electric Industrial System Corp 電力変換装置
JP2020072503A (ja) 2018-10-29 2020-05-07 富士電機株式会社 電力変換装置

Also Published As

Publication number Publication date
WO2023281643A1 (ja) 2023-01-12
US12301130B2 (en) 2025-05-13
US20230268847A1 (en) 2023-08-24
CN116325473A (zh) 2023-06-23
JPWO2023281643A1 (https=) 2023-01-12

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