JP6852788B2 - 電力変換装置の制御装置 - Google Patents
電力変換装置の制御装置 Download PDFInfo
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- JP6852788B2 JP6852788B2 JP2019524837A JP2019524837A JP6852788B2 JP 6852788 B2 JP6852788 B2 JP 6852788B2 JP 2019524837 A JP2019524837 A JP 2019524837A JP 2019524837 A JP2019524837 A JP 2019524837A JP 6852788 B2 JP6852788 B2 JP 6852788B2
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- voltage
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- ground fault
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- 238000001514 detection method Methods 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 230000007423 decrease Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000010248 power generation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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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
- H02H7/1222—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 input circuit, e.g. transients in the DC input
-
- 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
-
- 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
- H02H3/16—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 fault current to earth, frame or mass
-
- 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
-
- 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
-
- 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
-
- 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
- H02M7/53871—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 with automatic control of output voltage or current
-
- 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
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Photovoltaic Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Direct Current Feeding And Distribution (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Description
図1はこの発明の実施の形態1における電力変換装置の制御装置が適用される電源システムの構成図である。
図2はこの発明の実施の形態1における電力変換装置の制御装置の要部のブロック図である。
図3はこの発明の実施の形態1における電力変換装置の制御装置による地絡の判定のタイミングの例を説明するための図である。図3の横軸は時刻である。図3の縦軸は直流電圧検出装置7に検出された直流電圧である。
図4はこの発明の実施の形態1における電力変換装置の制御装置の動作の概要を説明するためのフローチャートである。
図5はこの発明の実施の形態1における電力変換装置の制御装置のハードウェア構成図である。
Claims (1)
- 太陽電池モジュールと電力変換装置との間の直流電路が開閉器を介して接地されているシステムにおいて前記開閉器を制御する接地制御部と、
前記太陽電池モジュールから出力された直流電圧を検出する直流電圧検出部と、
前記開閉器が前記接地制御部の制御により開いている際に、前記直流電路において地絡が発生しているか否かを判定する地絡判定部と、
を備え、
前記接地制御部は、前記直流電圧検出部により検出された直流電圧の値が徐々に小さくなって0になるまでの間において前記直流電圧検出部が予め設定された閾値よりも小さい値の直流電圧を検出し、前回の地絡の判定が行われてからの経過時間に基づいて現時刻が昼から夜に向かっている時刻であると判定した際に、前記開閉器を開き、その後、前記直流電圧検出部により検出された直流電圧の値が0となるまでに前記開閉器を閉じる電力変換装置の制御装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/023251 WO2018235278A1 (ja) | 2017-06-23 | 2017-06-23 | 電力変換装置の制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2018235278A1 JPWO2018235278A1 (ja) | 2020-04-09 |
JP6852788B2 true JP6852788B2 (ja) | 2021-03-31 |
Family
ID=64737789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019524837A Active JP6852788B2 (ja) | 2017-06-23 | 2017-06-23 | 電力変換装置の制御装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11018495B2 (ja) |
JP (1) | JP6852788B2 (ja) |
CN (1) | CN110785905B (ja) |
WO (1) | WO2018235278A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022074803A1 (ja) | 2020-10-08 | 2022-04-14 | 東芝三菱電機産業システム株式会社 | 電力変換装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2943133B2 (ja) * | 1994-04-30 | 1999-08-30 | キヤノン株式会社 | 絶縁状態測定方法、絶縁状態判定装置及びそれを用いた分散型発電装置 |
JP2009278774A (ja) * | 2008-05-14 | 2009-11-26 | Nissin Electric Co Ltd | 太陽光発電システム |
JP5520722B2 (ja) * | 2010-07-15 | 2014-06-11 | 株式会社ダイヘン | 系統連系インバータシステム |
DE102011017051B4 (de) * | 2011-04-11 | 2016-12-22 | Phoenix Contact Gmbh & Co. Kg | Überwachungseinrichtung für ein isoliert aufgebautes Netz einer Photovoltaikanlage, eine Photovoltaikanlage mit einer solchen Überwachungseinrichtung sowie ein Verfahren zum sicheren Betrieb einer Photovoltaikanlage |
CN103107518B (zh) | 2012-12-24 | 2015-09-23 | 深圳创动科技有限公司 | 一种光伏逆变器及其保护装置 |
JP2015032601A (ja) * | 2013-07-31 | 2015-02-16 | Jx日鉱日石エネルギー株式会社 | 太陽光発電システム |
WO2015015532A1 (ja) * | 2013-07-31 | 2015-02-05 | 三洋電機株式会社 | 電力変換装置 |
WO2015097838A1 (ja) * | 2013-12-27 | 2015-07-02 | 株式会社日立産機システム | 電力変換装置 |
JP6337468B2 (ja) * | 2013-12-27 | 2018-06-06 | オムロン株式会社 | 地絡検出装置 |
JP6386248B2 (ja) | 2014-04-10 | 2018-09-05 | Muraoka Partners株式会社 | 電圧測定装置及び電圧測定方法 |
JP5931148B2 (ja) * | 2014-09-10 | 2016-06-08 | ファナック株式会社 | 静電容量計算部を有するpwm整流器 |
JP6388528B2 (ja) | 2014-11-20 | 2018-09-12 | 三菱電機株式会社 | 地絡検出装置 |
CN205015423U (zh) * | 2015-07-22 | 2016-02-03 | 上海正泰电源系统有限公司 | 光伏逆变器的负极接地与故障检测装置 |
-
2017
- 2017-06-23 CN CN201780092419.6A patent/CN110785905B/zh active Active
- 2017-06-23 WO PCT/JP2017/023251 patent/WO2018235278A1/ja active Application Filing
- 2017-06-23 JP JP2019524837A patent/JP6852788B2/ja active Active
- 2017-06-23 US US16/621,724 patent/US11018495B2/en active Active
Also Published As
Publication number | Publication date |
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CN110785905A (zh) | 2020-02-11 |
JPWO2018235278A1 (ja) | 2020-04-09 |
US20200136371A1 (en) | 2020-04-30 |
US11018495B2 (en) | 2021-05-25 |
WO2018235278A1 (ja) | 2018-12-27 |
CN110785905B (zh) | 2022-04-01 |
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