JP7428902B2 - 電源システム - Google Patents
電源システム Download PDFInfo
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- JP7428902B2 JP7428902B2 JP2020532222A JP2020532222A JP7428902B2 JP 7428902 B2 JP7428902 B2 JP 7428902B2 JP 2020532222 A JP2020532222 A JP 2020532222A JP 2020532222 A JP2020532222 A JP 2020532222A JP 7428902 B2 JP7428902 B2 JP 7428902B2
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- 230000005856 abnormality Effects 0.000 claims description 41
- 238000004146 energy storage Methods 0.000 claims description 34
- 230000002457 bidirectional effect Effects 0.000 claims description 24
- 238000010248 power generation Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission 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
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H02J3/381—Dispersed generators
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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
- H02J9/066—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 characterised by the use of dynamo-electric machines
-
- 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
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
- H02J3/0012—Contingency detection
-
- 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
- H02J3/46—Controlling of the sharing of output between the 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
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
-
- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
特に本発明では、分散型電源として用いられたエネルギー貯蔵装置において、当該エネルギー貯蔵装置の双方向電力変換器を制御して、回転発電装置の慣性力を模擬した動作を行わせるので、回転発電装置の慣性力を補うことができるので、重要負荷の変動に対して発電機が脱落してしまうことを防ぐことができる。その結果、系統異常時においても重要負荷への電力供給を安定して行うことができる。
10 ・・・商用電力系統
30 ・・・重要負荷
L1 ・・・電力線
2 ・・・分散型電源
21 ・・・太陽光発電装置
211・・・太陽光発電パネル
212・・・電力変換器
22 ・・・エネルギー貯蔵装置
221・・・蓄電池(エネルギー貯蔵部)
222・・・双方向電力変換器
223・・・変換器制御部
23 ・・・回転発電装置
231・・・同期発電機
232・・・発電機制御部
3 ・・・開閉スイッチ
4 ・・・インピーダンス素子
5 ・・・系統異常検出部
6 ・・・スイッチ制御部
本実施形態の電源システム100は、図1に示すように、商用電力系統10と重要負荷30との間に設けられ、商用電力系統10の異常時に重要負荷30に電力を供給する無停電電源システムとしての機能(無停電電源機能)と、商用電力系統に対して順潮流及び逆潮流することで負荷平準化する分散型電源システムとしての機能(負荷平準化機能)を発揮するものである。
インピーダンス素子4の挿入によって一時的に系統-分散型電源間の電流潮流を抑制しているが、インピーダンス挿入中に系統-分散型電源間で位相がずれてしまうと、電圧振幅が復帰していても開閉スイッチ3を投入した瞬間に過電流が発生する。特にドループ制御は電圧振幅V、周波数fが可変であり、上記の位相ずれが発生しやすい。
したがって、復電検出後になるべく早く系統電圧と電圧振幅及び位相を合わせて開閉スイッチ3を投入するために、系統異常検出時はエネルギー貯蔵装置22を指令値制御に移行して分散型電源側の電圧振幅V、周波数fを事故直前の値で維持するようにコントロールすることで、系統-分散型電源間の位相ずれを最小限に抑えて、同期時間を短縮させることができる。なお、停電である場合には、開閉スイッチ3を開放したまま、ドループ制御に戻す。
なお、本発明は前記実施形態に限られるものではない。
Claims (2)
- 商用電力系統から重要負荷に給電するための電力線に接続された分散型電源と、
前記電力線において前記分散型電源よりも前記商用電力系統側に設けられた開閉スイッチと、
前記電力線において前記開閉スイッチに並列接続されたインピーダンス素子と、
前記商用電力系統の異常を検出する系統異常検出部と、
前記商用電力系統の異常が検出された場合に前記開閉スイッチを開放し、前記分散型電源と前記商用電力系統とを前記インピーダンス素子を介して接続するスイッチ制御部とを備え、
前記分散型電源と前記商用電力系統とが前記インピーダンス素子を介して接続された状態で、前記分散型電源が逆潮流を含む運転を継続するものであり、
前記分散型電源は、前記電力線に接続される回転発電装置と、前記電力線に接続されるエネルギー貯蔵装置とを有しており、
前記エネルギー貯蔵装置は、エネルギー貯蔵部と、当該エネルギー貯蔵部の充放電を行う双方向電力変換器と、当該双方向電力変換器を制御して、前記回転発電装置の慣性力を模擬した動作を行わせる変換器制御部とを有し、
前記変換器制御部は、前記商用電力系統の正常時において、前記エネルギー貯蔵装置が慣性力を持った電圧源となるように、前記双方向電力変換器を電圧振幅及び周波数を可変とするドループ制御を行い、前記系統異常検出部により異常が検出されると、前記エネルギー貯蔵装置に慣性力を持たせたまま前記ドループ制御から電圧振幅及び周波数が固定の指令値制御に移行する、電源システム。 - 前記分散型電源は、太陽光発電パネル及び電力変換器を備える太陽光発電装置を有する、請求項1記載の電源システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018141122 | 2018-07-27 | ||
JP2018141122 | 2018-07-27 | ||
PCT/JP2019/024661 WO2020021925A1 (ja) | 2018-07-27 | 2019-06-21 | 電源システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020021925A1 JPWO2020021925A1 (ja) | 2021-08-02 |
JP7428902B2 true JP7428902B2 (ja) | 2024-02-07 |
Family
ID=69181021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020532222A Active JP7428902B2 (ja) | 2018-07-27 | 2019-06-21 | 電源システム |
Country Status (7)
Country | Link |
---|---|
US (1) | US11451063B2 (ja) |
EP (1) | EP3832831A4 (ja) |
JP (1) | JP7428902B2 (ja) |
CN (1) | CN112470358A (ja) |
AU (1) | AU2019311464B2 (ja) |
TW (1) | TWI723454B (ja) |
WO (1) | WO2020021925A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023145074A1 (ja) * | 2022-01-31 | 2023-08-03 | 三菱電機株式会社 | 電力変換装置及び電力変換システム |
CN114567014B (zh) * | 2022-04-29 | 2022-07-15 | 武汉大学 | 一种具有电压支撑功能的柔性切换开关及其控制方法 |
EP4290736A1 (en) * | 2022-06-10 | 2023-12-13 | Schneider Electric Industries SAS | Devices and methods for disconnecting a grid power source from an electrical distribution system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017070130A (ja) | 2015-09-30 | 2017-04-06 | パナソニックIpマネジメント株式会社 | 電力制御システム及び電力制御方法 |
JP6338131B1 (ja) | 2017-09-04 | 2018-06-06 | 日新電機株式会社 | 電源システム |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5784644A (en) * | 1980-11-17 | 1982-05-27 | Fujitsu Ltd | Detection system of transmission line termination state |
JP3402886B2 (ja) | 1995-12-26 | 2003-05-06 | 東京電力株式会社 | 分散型電源設備 |
JP5626563B2 (ja) * | 2010-05-31 | 2014-11-19 | 清水建設株式会社 | 電力システム |
JP5877480B2 (ja) * | 2011-12-06 | 2016-03-08 | 清水建設株式会社 | 分散型電源の自立運転システム及びその方法 |
CN103580066A (zh) * | 2012-07-19 | 2014-02-12 | 杨忠芳 | 分布式发电***无缝切换控制*** |
US9755430B2 (en) * | 2013-04-11 | 2017-09-05 | Solantro Semiconductor Corp. | Virtual inverter for power generation units |
JP6863564B2 (ja) | 2015-05-29 | 2021-04-21 | 国立大学法人 東京大学 | 電力変換器、電力ネットワークシステムおよびその制御方法 |
TW201724685A (zh) * | 2015-12-30 | 2017-07-01 | 陳士麟 | 基於系統運作情境規劃之多區域微電網保護系統與方法 |
-
2019
- 2019-06-21 CN CN201980048338.5A patent/CN112470358A/zh active Pending
- 2019-06-21 JP JP2020532222A patent/JP7428902B2/ja active Active
- 2019-06-21 US US17/263,159 patent/US11451063B2/en active Active
- 2019-06-21 AU AU2019311464A patent/AU2019311464B2/en active Active
- 2019-06-21 EP EP19841502.8A patent/EP3832831A4/en active Pending
- 2019-06-21 WO PCT/JP2019/024661 patent/WO2020021925A1/ja unknown
- 2019-07-10 TW TW108124285A patent/TWI723454B/zh active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017070130A (ja) | 2015-09-30 | 2017-04-06 | パナソニックIpマネジメント株式会社 | 電力制御システム及び電力制御方法 |
JP6338131B1 (ja) | 2017-09-04 | 2018-06-06 | 日新電機株式会社 | 電源システム |
Also Published As
Publication number | Publication date |
---|---|
US11451063B2 (en) | 2022-09-20 |
TW202008694A (zh) | 2020-02-16 |
WO2020021925A1 (ja) | 2020-01-30 |
TWI723454B (zh) | 2021-04-01 |
AU2019311464A1 (en) | 2021-02-11 |
AU2019311464B2 (en) | 2022-05-05 |
CN112470358A (zh) | 2021-03-09 |
EP3832831A1 (en) | 2021-06-09 |
US20210167605A1 (en) | 2021-06-03 |
EP3832831A4 (en) | 2022-03-30 |
JPWO2020021925A1 (ja) | 2021-08-02 |
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