JP6243575B2 - 無停電電源装置およびそれを用いた無停電電源システム - Google Patents
無停電電源装置およびそれを用いた無停電電源システム Download PDFInfo
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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
- H02M7/493—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
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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
-
- 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
- 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
- H02M5/4585—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 having a rectifier with controlled elements
-
- 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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
Claims (6)
- 無停電電源装置であって、
交流電源から供給される交流電圧を第1〜第3の直流電圧に変換して第1〜第3の直流母線に出力するコンバータと、
前記第1〜第3の直流母線を介して供給される前記第1〜第3の直流電圧を交流電圧に変換して負荷に供給するインバータと、
前記第1〜第3の直流母線と電力貯蔵装置との間に接続された双方向チョッパとを備え、
前記第1の直流電圧は前記第2の直流電圧よりも高く、前記第3の直流電圧は前記第1および第2の直流電圧の中間電圧であり、
前記双方向チョッパは、
前記第1および第3の直流母線間に直列接続された第1および第2のトランジスタと、
前記第3および第2の直流母線間に直列接続された第3および第4のトランジスタと、
それぞれ前記第1〜第4のトランジスタに逆並列に接続された第1〜第4のダイオードと、
前記第1および第2のトランジスタ間の第1のノードと前記電力貯蔵装置の正極との間に接続される第1のコイルと、前記電力貯蔵装置の負極と前記第3および第4のトランジスタ間の第2のノードとの間に接続される第2のコイルとを有するノーマルモードリアクトルとを含み、
前記無停電電源装置は、さらに、前記交流電源から交流電圧が供給されている通常時は前記第1および第4のトランジスタを交互にオンさせて前記電力貯蔵装置を充電する充電モードを実行し、前記交流電源からの交流電力の供給が停止された停電時は前記第2および第3のトランジスタを交互にオンさせて前記電力貯蔵装置を放電させる放電モードを実行する制御装置を備え、
前記制御装置は、前記充電モード時は、前記第1および第2のコイルに流れる電流の値が一致するように前記第1および第4のトランジスタのうちの少なくともいずれか一方のトランジスタのオン時間を制御する、無停電電源装置。 - さらに、前記第1のノードから前記第1のコイルを介して前記電力貯蔵装置の正極に流れる電流を検出する第1の電流検出器と、
前記電力貯蔵装置の負極から前記第2のコイルを介して前記第2のノードに流れる電流を検出する第2の電流検出器とを備え、
前記制御装置は、前記充電モード時は、前記第1および第2の電流検出器の検出値が一致するように前記第1および第4のトランジスタのうちの少なくともいずれか一方のトランジスタのオン時間を制御する、請求項1に記載の無停電電源装置。 - 前記制御装置は、第1および第2の電流検出器の検出値の平均値を算出し、前記平均値と前記第1の電流検出器の検出値とが一致するように前記第1のトランジスタのオン時間を制御するとともに、前記平均値と前記第2の電流検出器の検出値とが一致するように前記第4のトランジスタのオン時間を制御する、請求項2に記載の無停電電源装置。
- 前記制御装置は、前記第1および第2の電流検出器の検出値を比較し、前記第1の電流検出器の検出値が前記第2の電流検出器の検出値よりも小さい場合は前記第1のトランジスタのオン時間を増大させるとともに前記第4のトランジスタのオン時間を減少させ、前記第1の電流検出器の検出値が前記第2の電流検出器の検出値よりも大きい場合は前記第1のトランジスタのオン時間を減少させるとともに前記第4のトランジスタのオン時間を増大させる、請求項2に記載の無停電電源装置。
- 請求項1に記載の無停電電源装置を複数備え、
複数の前記無停電電源装置は、負荷に対して並列接続されるとともに、前記電力貯蔵装置を共用する、無停電電源システム。 - 前記制御装置は、前記第1および第2のコイルに流れる電流の値が一致するように前記第1および第4のトランジスタのうちの少なくともいずれか一方のトランジスタのオン時間を制御して、複数の前記無停電電源装置に流れる横流電流を抑制する、請求項5に記載の無停電電源システム。
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CN109196761B (zh) * | 2016-06-02 | 2021-01-12 | 株式会社村田制作所 | 电源*** |
CN110063011A (zh) * | 2016-11-17 | 2019-07-26 | 东芝三菱电机产业***株式会社 | 电力变换装置 |
EP3644489A4 (en) * | 2017-06-23 | 2021-02-17 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | CURRENT CONVERSION DEVICE |
JP6706395B2 (ja) * | 2017-10-25 | 2020-06-03 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
US10554149B2 (en) * | 2017-11-20 | 2020-02-04 | Solaredge Technologies Ltd. | Providing positional awareness information and increasing power quality of parallel connected inverters |
DE102019109282A1 (de) * | 2018-04-10 | 2019-10-10 | Denso Corporation | Elektronische steuerungsvorrichtung |
JP7147325B2 (ja) * | 2018-07-25 | 2022-10-05 | 富士電機株式会社 | 電力変換装置 |
CN111490585B (zh) * | 2020-03-31 | 2021-12-07 | 上海卫星工程研究所 | 一种深空撞击探测高冲击环境下***辅助供电装置 |
CN114069819A (zh) * | 2020-08-07 | 2022-02-18 | 台达电子工业股份有限公司 | 具有三阶层切换电路的转换装置及三阶层切换电路的操作方法 |
TWI779846B (zh) * | 2021-09-24 | 2022-10-01 | 國立清華大學 | 並聯轉換器之載波同步方法及其系統 |
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US7688048B2 (en) * | 2007-02-21 | 2010-03-30 | American Power Conversion Corporation | 3-phase high power UPS |
WO2010021052A1 (ja) * | 2008-08-22 | 2010-02-25 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
CA2740765C (en) * | 2008-10-16 | 2014-12-30 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion device |
JP5248615B2 (ja) * | 2009-03-05 | 2013-07-31 | 東芝三菱電機産業システム株式会社 | 無停電電源装置 |
JP5237308B2 (ja) * | 2010-01-14 | 2013-07-17 | 三菱電機株式会社 | 無停電電源装置 |
JP2013162593A (ja) | 2012-02-03 | 2013-08-19 | Toshiba Mitsubishi-Electric Industrial System Corp | 電力変換装置 |
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US10050469B2 (en) | 2018-08-14 |
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CN107431378A (zh) | 2017-12-01 |
US20180076657A1 (en) | 2018-03-15 |
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