JP7401793B2 - 無停電電源装置 - Google Patents
無停電電源装置 Download PDFInfo
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- JP7401793B2 JP7401793B2 JP2021529553A JP2021529553A JP7401793B2 JP 7401793 B2 JP7401793 B2 JP 7401793B2 JP 2021529553 A JP2021529553 A JP 2021529553A JP 2021529553 A JP2021529553 A JP 2021529553A JP 7401793 B2 JP7401793 B2 JP 7401793B2
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- 230000005856 abnormality Effects 0.000 claims description 89
- 238000001514 detection method Methods 0.000 claims description 61
- 238000004146 energy storage Methods 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Classifications
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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
- 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
- H02H3/50—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 the appearance of abnormal wave forms, e.g. ac in dc installations
-
- 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
- H02H3/20—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 voltage
-
- 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
- H02H3/24—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 undervoltage or no-voltage
- H02H3/253—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 undervoltage or no-voltage for multiphase applications, e.g. phase interruption
-
- 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
- H02H3/46—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 frequency deviations
-
- 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
- H02H3/48—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 loss of synchronism
-
- 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
- H02H7/18—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 batteries; for accumulators
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
v:系統電圧
V1:系統電圧振幅
f:系統電圧周波数
θ:系統電圧位相、位相跳躍との位相変動はこの要素の変化である。
Σn≠1vn:基本波正相分以外の成分、n=-1の逆相成分と|n|≠1の高調波成分がある。
なお、フリッカはV1の数~数十Hzの低周期変動である。
10 ・・・商用電力系統(上位電源側電力系統)
30 ・・・重要負荷
L1 ・・・電力線
2 ・・・分散型電源
3 ・・・開放スイッチ
4 ・・・系統側電圧検出部
5 ・・・系統異常検出部
51 ・・・電圧低下検出部
52 ・・・周波数変動検出部
53 ・・・電圧上昇検出部
54 ・・・位相変動検出部
55 ・・・電圧不平衡検出部
56 ・・・異常高調波検出部
57 ・・・フリッカ検出部
6 ・・・制御部
7 ・・・発電装置
以下に、本発明に係る無停電電源装置の第1実施形態について、図面を参照して説明する。
系統異常の一例として商用電力系統に位相跳躍(10°の位相跳躍)があった場合の電源部への影響をシミュレーションした。このシミュレーションの系統モデル、及びスイッチ出力点の電圧vの位相跳躍Δθの監視制御モデルを図3に示す。
時刻0.5秒で商用電力系統に10°の位相跳躍が発生しており、直後に重要負荷のPCSへの電流iに定常振幅の2倍の過電流が発生している。
時刻0.5秒で商用電力系統に10°の位相跳躍が発生しており、この位相跳躍検出により2ミリ秒後に開放スイッチを開放する。なお、スイッチ開放中には位相跳躍検出はしない制御とする。
このシミュレーション結果から、位相跳躍検出が有効であること、瞬時電圧低下を含む電圧低下検出機能だけでは、系統異常に対応できないことが分かる。
このように構成した第1実施形態の無停電電源装置100によれば、系統異常検出部により、瞬時電圧低下を含む電圧低下又は周波数変動の少なくとも1つに加えて、電圧上昇、位相変動、電圧不平衡、高調波異常又はフリッカの少なくとも1つである系統異常を検出しており、検出された系統異常が重要負荷30又は電源部2の系統異常への耐量以上である場合に開放スイッチ3を開放するので、瞬時電圧低下を含む電圧低下及び周波数変動以外の種々の系統異常にも対応できる。また、重要負荷の系統異常への耐量だけでなく、電源部2の系統異常への耐量をパラメータとして開放スイッチ3の開放を行っているので、重要負荷30だけでなく、電源部2を考慮した系統異常への対応ができる。
次に本発明の係る無停電電源装置の第2実施形態について説明する。
このように構成した第2実施形態の無停電電源装置100によれば、前記第1実施形態の効果に加えて、ランニングコストの高い自立運転への移行頻度を低減することができる。
なお、本発明は前記実施形態に限られるものではない。
Claims (3)
- 商用又は自営線での上位電源側電力系統と重要負荷との間に設けられ、前記重要負荷に交流電力を供給する無停電電源装置であって、
前記電力系統から前記重要負荷に給電するための電力線に接続されたエネルギー貯蔵装置を有する電源部と、
前記電力線において前記電源部よりも前記電力系統側に設けられ、前記電力線を開閉する開放スイッチと、
前記開放スイッチよりも前記電力系統側で発生する瞬時電圧低下を含む電圧低下又は周波数変動の少なくとも1つに加えて、電圧上昇、位相変動、電圧不平衡、高調波異常又はフリッカの少なくとも1つである系統異常を検出する系統異常検出部と、
前記系統異常検出部により検出された系統異常に基づいて、前記開放スイッチ及び前記電源部を制御する制御部とを備え、
前記系統異常検出部により検出された系統異常が、前記重要負荷又は前記電源部の前記系統異常への耐量よりも小さく、かつ、所定の閾値以上の場合に、前記制御部は、前記開放スイッチの投入した状態を維持し、前記電源部により前記系統異常に対する変化軽減動作である補償動作を行わせ、
前記系統異常検出部により検出された系統異常が、前記所定の閾値以上であり、かつ、前記重要負荷又は前記電源部の前記系統異常への耐量のうち小さい方の耐量以上である場合に、前記制御部は、前記開放スイッチを開放し、前記電源部から前記重要負荷に交流電力を供給する、無停電電源装置。 - 前記電源部は、前記開放スイッチが開放した状態で、前記重要負荷又は前記電源部の前記系統異常への耐量が小さい方における限界耐量の範囲で自立運転する、請求項1記載の無停電電源装置。
- 前記電源部とは別に前記電力線に接続された発電装置を備える、請求項1又は2に記載の無停電電源装置。
Applications Claiming Priority (1)
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---|---|---|---|
PCT/JP2019/026044 WO2021001872A1 (ja) | 2019-07-01 | 2019-07-01 | 無停電電源装置 |
Publications (2)
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JPWO2021001872A1 JPWO2021001872A1 (ja) | 2021-01-07 |
JP7401793B2 true JP7401793B2 (ja) | 2023-12-20 |
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Country Status (6)
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US (1) | US11855483B2 (ja) |
EP (1) | EP3996241A4 (ja) |
JP (1) | JP7401793B2 (ja) |
CN (1) | CN113906647B (ja) |
AU (1) | AU2019453332B2 (ja) |
WO (1) | WO2021001872A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2000278882A (ja) | 1999-03-24 | 2000-10-06 | Sanyo Denki Co Ltd | 無停電電源装置 |
US20040084965A1 (en) | 2002-10-22 | 2004-05-06 | Welches Richard Shaun | Hybrid variable speed generator/uninterruptible power supply power converter |
WO2005041384A1 (ja) | 2003-10-27 | 2005-05-06 | Mitsubishi Denki Kabushiki Kaisha | 電源装置 |
US20050134120A1 (en) | 2003-12-18 | 2005-06-23 | General Electric Company | Robust power distribution systems and methods |
JP2006509489A (ja) | 2002-12-06 | 2006-03-16 | エレクトリック パワー リサーチ インスチテュート インコーポレイテッド | 無停電源及び発電システム |
JP2009177961A (ja) | 2008-01-25 | 2009-08-06 | Mitsubishi Electric Corp | 無停電電源装置 |
WO2011016092A1 (ja) | 2009-08-07 | 2011-02-10 | 清水建設株式会社 | 分散型電源の自立運転システム |
CN106300646B (zh) | 2016-10-14 | 2017-06-16 | 湖南大学 | 一种海岛供电互动式ups***抗扰动抑制方法 |
JP2019187107A (ja) | 2018-04-11 | 2019-10-24 | 日新電機株式会社 | 電源システム |
JP7180112B2 (ja) | 2018-05-15 | 2022-11-30 | 日新電機株式会社 | 無停電電源装置 |
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JP3598799B2 (ja) * | 1998-02-25 | 2004-12-08 | 新神戸電機株式会社 | 無停電電源装置 |
JP2000184622A (ja) * | 1998-12-09 | 2000-06-30 | Hitachi Ltd | 無停電電源装置 |
JP2003219578A (ja) * | 2002-01-17 | 2003-07-31 | Ntt Power & Building Facilities Inc | 無停電電源システム |
JP2005229662A (ja) | 2004-02-10 | 2005-08-25 | Fuji Electric Systems Co Ltd | 無停電電源装置 |
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JP5071209B2 (ja) * | 2008-04-04 | 2012-11-14 | 三菱電機株式会社 | 無停電電源装置 |
JP2013009584A (ja) * | 2011-05-26 | 2013-01-10 | Panasonic Corp | 蓄電装置 |
CN105429280A (zh) | 2014-08-15 | 2016-03-23 | 光宝电子(广州)有限公司 | 不断电***及其供应方法 |
TWI531137B (zh) | 2014-10-08 | 2016-04-21 | Acbel Polytech Inc | Alternative battery backup module and battery recovery system |
JP2017032452A (ja) | 2015-08-04 | 2017-02-09 | 住友電気工業株式会社 | 入力電圧の異常検出方法及び電源装置 |
DE102017211351A1 (de) | 2017-07-04 | 2019-01-10 | Siemens Aktiengesellschaft | Unterbrechungsfreie Stromversorgung |
JP6338131B1 (ja) * | 2017-09-04 | 2018-06-06 | 日新電機株式会社 | 電源システム |
JP2020018028A (ja) * | 2018-07-23 | 2020-01-30 | 日新電機株式会社 | 電源システム |
-
2019
- 2019-07-01 CN CN201980096805.1A patent/CN113906647B/zh active Active
- 2019-07-01 EP EP19936396.1A patent/EP3996241A4/en active Pending
- 2019-07-01 US US17/614,321 patent/US11855483B2/en active Active
- 2019-07-01 JP JP2021529553A patent/JP7401793B2/ja active Active
- 2019-07-01 AU AU2019453332A patent/AU2019453332B2/en active Active
- 2019-07-01 WO PCT/JP2019/026044 patent/WO2021001872A1/ja unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000278882A (ja) | 1999-03-24 | 2000-10-06 | Sanyo Denki Co Ltd | 無停電電源装置 |
US20040084965A1 (en) | 2002-10-22 | 2004-05-06 | Welches Richard Shaun | Hybrid variable speed generator/uninterruptible power supply power converter |
JP2006509489A (ja) | 2002-12-06 | 2006-03-16 | エレクトリック パワー リサーチ インスチテュート インコーポレイテッド | 無停電源及び発電システム |
WO2005041384A1 (ja) | 2003-10-27 | 2005-05-06 | Mitsubishi Denki Kabushiki Kaisha | 電源装置 |
US20050134120A1 (en) | 2003-12-18 | 2005-06-23 | General Electric Company | Robust power distribution systems and methods |
JP2009177961A (ja) | 2008-01-25 | 2009-08-06 | Mitsubishi Electric Corp | 無停電電源装置 |
WO2011016092A1 (ja) | 2009-08-07 | 2011-02-10 | 清水建設株式会社 | 分散型電源の自立運転システム |
CN106300646B (zh) | 2016-10-14 | 2017-06-16 | 湖南大学 | 一种海岛供电互动式ups***抗扰动抑制方法 |
JP2019187107A (ja) | 2018-04-11 | 2019-10-24 | 日新電機株式会社 | 電源システム |
JP7180112B2 (ja) | 2018-05-15 | 2022-11-30 | 日新電機株式会社 | 無停電電源装置 |
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Publication number | Publication date |
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US11855483B2 (en) | 2023-12-26 |
CN113906647B (zh) | 2024-07-02 |
EP3996241A1 (en) | 2022-05-11 |
EP3996241A4 (en) | 2023-02-08 |
CN113906647A (zh) | 2022-01-07 |
JPWO2021001872A1 (ja) | 2021-01-07 |
AU2019453332A1 (en) | 2021-12-23 |
AU2019453332B2 (en) | 2022-10-13 |
WO2021001872A1 (ja) | 2021-01-07 |
US20220231536A1 (en) | 2022-07-21 |
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