JP2013500476A - Dcアーク故障を検出及び制御するための方法及び装置 - Google Patents
Dcアーク故障を検出及び制御するための方法及び装置 Download PDFInfo
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- JP2013500476A JP2013500476A JP2012521839A JP2012521839A JP2013500476A JP 2013500476 A JP2013500476 A JP 2013500476A JP 2012521839 A JP2012521839 A JP 2012521839A JP 2012521839 A JP2012521839 A JP 2012521839A JP 2013500476 A JP2013500476 A JP 2013500476A
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000010248 power generation Methods 0.000 claims description 14
- 230000002401 inhibitory effect Effects 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
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- 229910052739 hydrogen Inorganic materials 0.000 description 3
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- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- 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
- H02H1/0015—Using arc detectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/50—Means for detecting the presence of an arc or discharge
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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
- H02H3/44—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 rate of change of electrical quantities
- H02H3/445—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 rate of change of electrical quantities of DC quantities
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
- Emergency Protection Circuit Devices (AREA)
- Arc Welding Control (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
【選択図】 図3
Description
Claims (22)
- アーク故障を管理する方法であって、当該方法の少なくとも一部分が、少なくとも1つのプロセッサを含むコントローラによって遂行される、方法において、
電力コンバータの信号のシグネチャを分析するステップと、
前記シグネチャの分析に基づいて、アーク故障が存在するかどうか決定するステップと、
を備える方法。 - シグネチャを分析する前記ステップは、
前記電力コンバータの電流に基づくシグネチャを分析して、潜在的なアーク故障を識別すること、及び
潜在的なアーク故障を識別する際に、前記シグネチャを、前記電力コンバータの電圧に基づく別のシグネチャと比較して、アーク故障を識別するアーク故障シグネチャの一致を決定すること、
を含む請求項1に記載の方法。 - アーク故障が存在すると決定した際に前記電力コンバータによる電力発生を禁止するステップを更に備える、請求項1に記載の方法。
- 前記電力コンバータのDC電流の極性を決定するステップと、
前記極性に基づいて直列アークと並列アークとを区別するステップと、
を更に備える請求項2に記載の方法。 - 並列アークを識別した際に前記電力コンバータのDC入力端子間に短絡を与えるステップを更に備える、請求項4に記載の方法。
- 前記シグネチャを電流変動について分析するステップを更に備え、非変動電流は並列アークを確認するものである、請求項5に記載の方法。
- 変動電流であると決定した際に前記短絡を解除するステップを更に備えた、請求項5に記載の方法。
- 前記極性が正であるときに直列アークが識別され、前記極性が負であるときに並列アークが識別される、請求項4に記載の方法。
- 前記シグネチャは、前記電力コンバータのDC電流に基づくDC電流シグネチャであり、前記別のシグネチャは、前記電力コンバータのDC電圧に基づくDC電圧シグネチャである、請求項1に記載の方法。
- アーク故障が存在するかどうか決定する前記ステップは、光照射で生じるシグネチャの変化と、アークで生じるシグネチャの変化とを区別することを含む、請求項1に記載の方法。
- 電力コンバータ回路に接続され、電力コンバータ回路の信号のシグネチャを分析し、このシグネチャの分析に基づき、アーク故障が存在するかどうか決定するように構成された波形処理モジュールを備える、アーク故障を管理する装置。
- 前記シグネチャの分析は、(i)前記電力コンバータ回路の電流に基づくシグネチャを分析して、潜在的なアーク故障を識別すること、及び(ii)潜在的なアーク故障を識別する際に、前記シグネチャを、前記電力コンバータ回路の電圧に基づく別のシグネチャと比較して、アーク故障を識別するアーク故障シグネチャの一致を決定すること、を含む請求項11に記載の装置。
- 前記波形処理モジュールは、アーク故障が存在すると決定した際に前記電力コンバータ回路による電力発生を禁止する、請求項11に記載の装置。
- 前記波形処理モジュールは、更に、(iv)前記電力コンバータ回路のDC電流の極性を決定し、(v)その極性に基づいて直列アークと並列アークとを区別する、請求項12に記載の装置。
- 並列アークを識別した際に前記電力コンバータ回路のDC入力端子間に短絡を与える短絡メカニズムを更に備える、請求項14に記載の装置。
- 前記波形処理モジュールは、更に、前記シグネチャを電流変動について分析し、非変動電流は並列アークを確認するものである、請求項15に記載の装置。
- 変動電流であると決定した際に前記短絡を除去する、請求項16に記載の装置。
- 前記極性が正であるときに直列アークが識別され、前記極性が負であるときに並列アークが識別される、請求項14に記載の装置。
- 前記シグネチャは、前記電力コンバータ回路のDC電流に基づくDC電流シグネチャであり、前記別のシグネチャは、前記電力コンバータ回路のDC電圧に基づくDC電圧シグネチャである、請求項12に記載の装置。
- アーク故障が存在するかどうかの前記決定は、光照射で生じるシグネチャの変化と、アークで生じるシグネチャの変化とを区別することを含む、請求項11に記載の装置。
- アーク故障を管理するシステムにおいて、
光電池(PV)モジュールと、
前記PVモジュールに接続された電力コンバータと、
を備え、前記電力コンバータは、電力コンバータ回路に接続された波形処理モジュールを含み、この波形処理モジュールは、前記電力コンバータの信号のシグネチャを分析して、そのシグネチャの分析に基づき、アーク故障が存在するかどうか決定するものである、システム。 - 前記シグネチャの分析は、(i)前記電力コンバータ回路の電流に基づくシグネチャを分析して、潜在的なアーク故障を識別すること、及び(ii)潜在的なアーク故障を識別する際に、前記シグネチャを、前記電力コンバータ回路の電圧に基づく別のシグネチャと比較して、アーク故障を識別するアーク故障シグネチャの一致を決定すること、を含む請求項21に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US22794909P | 2009-07-23 | 2009-07-23 | |
US61/227,949 | 2009-07-23 | ||
PCT/US2010/043096 WO2011011711A2 (en) | 2009-07-23 | 2010-07-23 | Method and apparatus for detection and control of dc arc faults |
Publications (2)
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JP2013500476A true JP2013500476A (ja) | 2013-01-07 |
JP5524335B2 JP5524335B2 (ja) | 2014-06-18 |
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JP2012521839A Expired - Fee Related JP5524335B2 (ja) | 2009-07-23 | 2010-07-23 | Dcアーク故障を検出及び制御するための方法及び装置 |
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Country | Link |
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US (2) | US8179147B2 (ja) |
EP (2) | EP2741388B1 (ja) |
JP (1) | JP5524335B2 (ja) |
KR (1) | KR20120039036A (ja) |
AU (1) | AU2010275466B2 (ja) |
CA (1) | CA2758815A1 (ja) |
WO (1) | WO2011011711A2 (ja) |
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- 2010-07-23 JP JP2012521839A patent/JP5524335B2/ja not_active Expired - Fee Related
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CA2758815A1 (en) | 2011-01-27 |
EP2457313A4 (en) | 2013-01-16 |
US20120206843A1 (en) | 2012-08-16 |
EP2741388B1 (en) | 2015-10-21 |
AU2010275466B2 (en) | 2015-11-26 |
AU2010275466A1 (en) | 2011-11-10 |
US8179147B2 (en) | 2012-05-15 |
EP2457313A2 (en) | 2012-05-30 |
EP2457313B1 (en) | 2014-03-05 |
WO2011011711A2 (en) | 2011-01-27 |
KR20120039036A (ko) | 2012-04-24 |
EP2741388A1 (en) | 2014-06-11 |
JP5524335B2 (ja) | 2014-06-18 |
US20110019444A1 (en) | 2011-01-27 |
US9478967B2 (en) | 2016-10-25 |
WO2011011711A3 (en) | 2011-05-05 |
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