JP7278800B2 - 電力供給システム - Google Patents
電力供給システム Download PDFInfo
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- JP7278800B2 JP7278800B2 JP2019036431A JP2019036431A JP7278800B2 JP 7278800 B2 JP7278800 B2 JP 7278800B2 JP 2019036431 A JP2019036431 A JP 2019036431A JP 2019036431 A JP2019036431 A JP 2019036431A JP 7278800 B2 JP7278800 B2 JP 7278800B2
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- voltage
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- power supply
- output
- circuit
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- 238000011084 recovery Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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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
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from AC or DC
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- 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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
- H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
- H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Inverter Devices (AREA)
Description
図1を参照して、無停電電源システム1は、複数(n個)の交流出力変換器10-1~10-nを含む。交流出力変換器10-1~10-n(総称して交流出力変換器10とも称する)は、外部交流電源3Aおよび外部バイパス交流電源3Bと接続されるとともに、共通の負荷20に対して並列運転する。なお、n個は、特に2個以上であれば供給する負荷に応じて任意の値に設定することが可能である。
交流出力変換器10は、外部交流電源3Aと接続され、外部交流電源3Aからの交流電圧を直流電圧に変換するコンバータ5と、コンバータ5と接続され、直流電圧を交流電圧に変換するインバータ7と、インバータ7と並列にコンバータ5と接続される蓄電池6とを含む。
複数の交流出力変換器10の並列構成であるため、それぞれの交流出力変換器10から負荷20に対して必要な電力が供給される。
図3(A)に示されるように、一例として、2台の交流出力変換器10-1,10-2を含む構成について説明する。
複数の交流出力変換器10の並列構成であるため、それぞれの交流出力変換器10から負荷20に対して必要な電力が供給される。
この場合には、コンバータ5からの電圧供給が低下するため蓄電池6からインバータ7および切替回路9を介して負荷20に対する電力供給を継続する。この状態の場合には、切替回路8はオフしている。
Claims (1)
- 交流負荷に電力を供給する母線に並列接続した複数の交流出力変換器を備え、
各前記交流出力変換器は、
外部交流電圧を直流電圧に変換する交流直流変換器と、
前記直流電圧を交流電圧に変換して前記母線に供給する直流交流変換器と、
前記直流交流変換器と並列に接続され、前記直流電圧を蓄電する2次電池と、
前記母線と前記直流交流変換器との間に設けられた第1の切替回路と、
前記直流交流変換器から供給する前記交流電圧の代わりに、前記外部交流電圧を直接的に前記母線に供給するためのバイパス経路と、
前記母線と前記バイパス経路との間に設けられた第2の切替回路と、
停電時および復電時に前記第1および第2の切替回路を制御する切替制御回路と、
前記外部交流電圧、前記直流交流変換器により変換された交流電圧、前記バイパス経路のバイパス電圧および前記母線の電圧の供給を受けて前記切替制御回路の制御電圧を生成するための制御電源回路とを含み、
各前記交流出力変換器の切替制御回路は、通常時は前記第1の切替回路をオンし、前記第2の切替回路をオフし、
各前記交流出力変換器の切替制御回路は、他の前記交流出力変換器の切替制御回路と接続され、前記他の前記交流出力変換器から前記交流負荷への電圧の停止信号の入力を受け、全ての前記交流出力変換器について前記交流負荷への電圧の停止信号の入力を受けた場合に、前記第1の切替回路をオフし、前記第2の切替回路をオンする、電力供給システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019036431A JP7278800B2 (ja) | 2019-02-28 | 2019-02-28 | 電力供給システム |
US16/708,784 US10886843B2 (en) | 2019-02-28 | 2019-12-10 | Electric power supplying system |
Applications Claiming Priority (1)
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---|---|---|---|
JP2019036431A JP7278800B2 (ja) | 2019-02-28 | 2019-02-28 | 電力供給システム |
Publications (2)
Publication Number | Publication Date |
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JP2020141511A JP2020141511A (ja) | 2020-09-03 |
JP7278800B2 true JP7278800B2 (ja) | 2023-05-22 |
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JP2019036431A Active JP7278800B2 (ja) | 2019-02-28 | 2019-02-28 | 電力供給システム |
Country Status (2)
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US (1) | US10886843B2 (ja) |
JP (1) | JP7278800B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7455737B2 (ja) | 2020-12-03 | 2024-03-26 | 東芝三菱電機産業システム株式会社 | 電力供給システムおよび電力供給システムの制御方法 |
US12224619B2 (en) * | 2021-08-24 | 2025-02-11 | Tmeic Corporation | Uninterruptible power supply apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011036767A1 (ja) | 2009-09-25 | 2011-03-31 | 東芝三菱電機産業システム株式会社 | 無停電電源装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008067491A (ja) * | 2006-09-07 | 2008-03-21 | Toshiba Mitsubishi-Electric Industrial System Corp | 共通予備無停電電源システム |
US9804622B2 (en) * | 2012-01-05 | 2017-10-31 | Schneider Electric It Corporation | Calibration of current sensors in parallel power converters |
JP6418109B2 (ja) * | 2015-08-31 | 2018-11-07 | 東芝三菱電機産業システム株式会社 | 無停電電源システム |
US10340732B2 (en) * | 2015-12-04 | 2019-07-02 | Schneider Electric It Corporation | Automatic UPS bypass load sharing |
US10630104B2 (en) * | 2017-04-13 | 2020-04-21 | Schneider Electric It Corporation | Automatic current balancing for power systems |
-
2019
- 2019-02-28 JP JP2019036431A patent/JP7278800B2/ja active Active
- 2019-12-10 US US16/708,784 patent/US10886843B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011036767A1 (ja) | 2009-09-25 | 2011-03-31 | 東芝三菱電機産業システム株式会社 | 無停電電源装置 |
Also Published As
Publication number | Publication date |
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JP2020141511A (ja) | 2020-09-03 |
US10886843B2 (en) | 2021-01-05 |
US20200280254A1 (en) | 2020-09-03 |
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