JP6973675B1 - 電力変換装置の短絡保護装置 - Google Patents
電力変換装置の短絡保護装置 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1203—Circuits independent of the type of conversion
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1225—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to internal faults, e.g. shoot-through
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit
-
- 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
-
- 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
- H02M7/493—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 the static converters being arranged for operation in parallel
-
- 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
- H02M7/53—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Power Conversion In General (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
図1はこの発明の一実施形態である短絡保護装置50を備えた電力変換装置100の構成を示す回路図である。電力変換装置100は、上位装置200からの指令に従って電力変換装置100の各部を制御する制御部1と、電力を変換する駆動部2aおよび2bを備える。
以上、この発明の一実施形態について説明したが、この発明には他にも実施形態が考えられる。例えば次の通りである。
Claims (6)
- 並列接続された複数のスイッチング素子部を介して負荷に電力を供給する電力変換装置の短絡保護装置において、
前記複数のスイッチング素子部の個数Mよりも1だけ少ないMa個の電流検出器であって、前記複数のスイッチング素子部における2以上のスイッチング素子部に流れる電流の総和を検出し、検出結果を示す検出信号を出力するMa個の電流検出器と、
前記Ma個の電流検出器から得られる検出信号に基づき、前記複数のスイッチング素子部に短絡故障があったと判断し、前記複数のスイッチング素子部のオンオフ駆動を停止させる遮断指示信号を出力する短絡判断部と、を有し、
前記Ma個の電流検出器におけるN番目(Nは1〜Maまでの整数)の電流検出器は、1番目からM番目までのスイッチング素子部のうちN番目のスイッチング素子部以外の全てのスイッチング素子部に流れる電流の総和を検出するものであり、
前記短絡判断部は、前記Ma個の電流検出器による電流検出値の全てが閾値を越えている場合に、前記M番目のスイッチング素子部に短絡故障があったと判断し、前記Ma個の電流検出器のうち1個の電流検出器の電流検出値が閾値を越えておらず、他のMa−1個の電流検出器の電流検出値が閾値を越えている場合に、当該1個の電流検出器において電流検出対象となっていないスイッチング素子部に短絡故障があったと判断する短絡保護装置。 - 並列接続された複数のスイッチング素子部を介して負荷に電力を供給する電力変換装置の短絡保護装置において、
前記複数のスイッチング素子部の個数Mよりも1だけ少ないMa個の電流検出器であって、前記複数のスイッチング素子部における2以上のスイッチング素子部に流れる電流の総和を検出し、検出結果を示す検出信号を出力するMa個の電流検出器と、
前記Ma個の電流検出器から得られる検出信号に基づき、前記複数のスイッチング素子部に短絡故障があったと判断し、前記複数のスイッチング素子部のオンオフ駆動を停止させる遮断指示信号を出力する短絡判断部と、を有し、
前記Ma個の電流検出器におけるN番目(Nは1〜Maまでの整数)の電流検出器は、1番目からM番目までのスイッチング素子部のうちN番目およびN+1番目のスイッチング素子部に流れる電流の総和を検出するものであり、
前記短絡判断部は、前記Ma個の電流検出器のうち1番目の電流検出器による電流検出値が閾値を越え、かつ、2番目の電流検出器による電流検出値が閾値を越えていない場合に、1番目のスイッチング素子部に短絡故障があったと判断し、前記Ma個の電流検出器のうちMa番目の電流検出器による電流検出値が閾値を越え、かつ、Ma−1番目の電流検出器による電流検出値が閾値を越えていない場合に、M番目のスイッチング素子部に短絡故障があったと判断し、前記Ma個の電流検出器のうちN番目の電流検出器による電流検出値とN+1番目の電流検出器による電流検出値の両方が閾値を越えている場合に、N+1番目のスイッチング素子部に短絡故障があったと判断する短絡保護装置。 - 前記電流検出器はロゴスキーコイルを含む請求項1または2に記載の短絡保護装置。
- 前記ロゴスキーコイルとして第1のロゴスキーコイルと第2のロゴスキーコイルが基板に実装され、前記第1のロゴスキーコイルと前記第2のロゴスキーコイルの重なり部分における一方のロゴスキーコイルの戻り線が当該ロゴスキーコイルの中心軸よりも他方のロゴスキーコイルの戻り線から遠方に配置されたことを特徴とする請求項3に記載の短絡保護装置。
- 前記ロゴスキーコイルとして第1のロゴスキーコイルと第2のロゴスキーコイルが基板に実装され、前記第1のロゴスキーコイルと前記第2のロゴスキーコイルの重なり部分のコイルが互い違いに配置されたことを特徴とする請求項3または4に記載の短絡保護装置。
- 前記スイッチング素子部はワイドギャップ半導体素子を含む請求項1〜5のいずれか1項に記載の短絡保護装置。
Priority Applications (4)
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JP2021043060A JP6973675B1 (ja) | 2021-03-17 | 2021-03-17 | 電力変換装置の短絡保護装置 |
CN202210097304.9A CN115173370A (zh) | 2021-03-17 | 2022-01-27 | 电力变换装置的短路保护装置 |
US17/589,211 US11705805B2 (en) | 2021-03-17 | 2022-01-31 | Short circuit protection apparatus for power conversion apparatus |
DE102022102316.8A DE102022102316A1 (de) | 2021-03-17 | 2022-02-01 | Kurzschlussschutzvorrichtung für eine leistungsumwandlungsvorrichtung |
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JP2021043060A JP6973675B1 (ja) | 2021-03-17 | 2021-03-17 | 電力変換装置の短絡保護装置 |
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Citations (9)
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JP2001169533A (ja) * | 1999-12-06 | 2001-06-22 | Toshiba Corp | 電力変換装置 |
JP2003189628A (ja) * | 2001-12-11 | 2003-07-04 | Fuji Electric Co Ltd | 並列接続電力変換器の制御方法および装置 |
JP2008236907A (ja) * | 2007-03-20 | 2008-10-02 | Toshiba Mitsubishi-Electric Industrial System Corp | 電力変換装置のゲート制御回路及びゲート制御方法 |
JP2009027826A (ja) * | 2007-07-19 | 2009-02-05 | Chugoku Electric Power Co Inc:The | 保護継電装置 |
JP2009044954A (ja) * | 2007-07-19 | 2009-02-26 | Chugoku Electric Power Co Inc:The | クロス貫通変流器および保護継電装置 |
JP2011232086A (ja) * | 2010-04-26 | 2011-11-17 | Toyota Motor Corp | 電流検出装置 |
JP2013143138A (ja) * | 2012-01-06 | 2013-07-22 | Samsung Electronics Co Ltd | 電磁誘導入力方式のセンシング装置及びその制御方法 |
JP2017124728A (ja) * | 2016-01-13 | 2017-07-20 | 日立オートモティブシステムズ株式会社 | 車載制御装置 |
JP6187904B2 (ja) * | 2013-06-11 | 2017-08-30 | ローム株式会社 | 電子回路 |
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JP2002064180A (ja) | 2000-08-22 | 2002-02-28 | Mitsubishi Electric Corp | 半導体モジュール |
JP2007202237A (ja) | 2006-01-24 | 2007-08-09 | Tokyo Electric Power Co Inc:The | 電力変換器及びその制御方法 |
JP6398949B2 (ja) * | 2015-11-05 | 2018-10-03 | 三菱電機株式会社 | 半導体素子の駆動装置 |
JP2021043060A (ja) | 2019-09-11 | 2021-03-18 | キオクシア株式会社 | 試験システムおよび試験方法 |
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2021
- 2021-03-17 JP JP2021043060A patent/JP6973675B1/ja active Active
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- 2022-01-27 CN CN202210097304.9A patent/CN115173370A/zh active Pending
- 2022-01-31 US US17/589,211 patent/US11705805B2/en active Active
- 2022-02-01 DE DE102022102316.8A patent/DE102022102316A1/de active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001169533A (ja) * | 1999-12-06 | 2001-06-22 | Toshiba Corp | 電力変換装置 |
JP2003189628A (ja) * | 2001-12-11 | 2003-07-04 | Fuji Electric Co Ltd | 並列接続電力変換器の制御方法および装置 |
JP2008236907A (ja) * | 2007-03-20 | 2008-10-02 | Toshiba Mitsubishi-Electric Industrial System Corp | 電力変換装置のゲート制御回路及びゲート制御方法 |
JP2009027826A (ja) * | 2007-07-19 | 2009-02-05 | Chugoku Electric Power Co Inc:The | 保護継電装置 |
JP2009044954A (ja) * | 2007-07-19 | 2009-02-26 | Chugoku Electric Power Co Inc:The | クロス貫通変流器および保護継電装置 |
JP2011232086A (ja) * | 2010-04-26 | 2011-11-17 | Toyota Motor Corp | 電流検出装置 |
JP2013143138A (ja) * | 2012-01-06 | 2013-07-22 | Samsung Electronics Co Ltd | 電磁誘導入力方式のセンシング装置及びその制御方法 |
JP6187904B2 (ja) * | 2013-06-11 | 2017-08-30 | ローム株式会社 | 電子回路 |
JP2017124728A (ja) * | 2016-01-13 | 2017-07-20 | 日立オートモティブシステムズ株式会社 | 車載制御装置 |
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US11705805B2 (en) | 2023-07-18 |
CN115173370A (zh) | 2022-10-11 |
US20220302821A1 (en) | 2022-09-22 |
DE102022102316A1 (de) | 2022-09-22 |
JP2022142835A (ja) | 2022-10-03 |
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