DE19718046A1 - Contactless current transfer from photovoltaic solar module to busbar - Google Patents
Contactless current transfer from photovoltaic solar module to busbarInfo
- Publication number
- DE19718046A1 DE19718046A1 DE19718046A DE19718046A DE19718046A1 DE 19718046 A1 DE19718046 A1 DE 19718046A1 DE 19718046 A DE19718046 A DE 19718046A DE 19718046 A DE19718046 A DE 19718046A DE 19718046 A1 DE19718046 A1 DE 19718046A1
- Authority
- DE
- Germany
- Prior art keywords
- electrical
- solar modules
- solar
- solar module
- busbar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000003213 activating effect Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/93—Interconnections
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/30—Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Photovoltaic Devices (AREA)
Abstract
THe photovoltaic solar modules are without electric terminals and the generated current feeds a solar modulated converter, generating an alternating magnetic field inducing a current in an external solar modulated converter via an air gap, feeding a busbar directly, or after conversion, with the busbar feeding a central control. Pref. the control takes up excessive power, processes it and supplies the busbar with AC or DC for activating solar modules coupled magnetically via an air gap. It also assumes the task of testing periodically the individual solar modules for their operational state with reporting or storing the results.
Description
Es ist bekannt, daß bei der Auslegung von photovoltaischen Solargeneratoren je nach Erfordernis für Leistung, Spannung und Strom einzelne Solarmodule oder mehr in Reihe geschaltet werden und so viele von diesen Strängen parallel bis die gewünschten Leistungsdaten erreicht sind.It is known that in the design of photovoltaic solar generators each Individual solar modules or more as required for power, voltage and current be connected in series and so many of these strands in parallel to the desired performance data are reached.
Durch die Reihenschaltung von einzelnen Solarmodulen richtet sich der Strom des Solarmodulstranges nach dem schwächsten Solarmodul. Dies führt zu Stromeinbußen von ca. 10% und mehr.By connecting individual solar modules in series, the current of the Solar module string after the weakest solar module. this leads to Loss of electricity of approx. 10% and more.
Ferner erhöht sich durch die Reihenschaltung der elektrische Streß bei den Einzelsolarmodule, was erhöhte Isolationsfestigkeit erfordert und damit höhere Kosten für die Einzelmodule, Verdrahtung, Klemmen und Steckverbindungen bedeutet.Furthermore, the series connection increases the electrical stress in the Individual solar modules, which requires increased insulation strength and therefore higher ones Costs for the individual modules, wiring, terminals and plug connections means.
Ferner bringt der Berührungsschutz höhere Kosten. Gefahren entstehen beim Aufbau der Anlage, bei Service und Reparaturarbeiten durch Spannungsschläge, Lichtbogen etc.Furthermore, the protection against accidental contact brings higher costs. Dangers arise with Construction of the system, during service and repair work due to voltage surges, Electric arc etc.
Durch Abschattungen von Einzelsolarmodulen in Solarmodulsträngen reduziert sich der Strangstrom erheblich oder führt gar zu Beschädigung bei dem abgeschatteten Modul.Shadowing of individual solar modules in solar module strings reduces the strand current considerably or even leads to damage to the shadowed one Module.
Die vielen Klemmen und Steckverbindungen des Solargenerators sind oft der Umwelt ausgeliefert und können durch Verwitterung zu Unterbrechungen, Lichtbogen oder gar Bränden führen.The many terminals and plug connections of the solar generator are often the Environment and can cause interruptions due to weathering, Arc or even fire.
Durch die magnetische Ankoppelung der photovoltaischen Solarmodule an eine elektrische Sammelleitung ergibt sich eine Parallelschaltung aller installierten Solarmodule bezogen auf die Sammelleitung. Ferner wird durch die magnetische Kopplung gleich die richtige Spannungstransformation durch den an der elektrischen Sammelleitung befindlichen Wandler durchgeführt. By magnetically coupling the photovoltaic solar modules to one electrical manifold results in a parallel connection of all installed Solar modules related to the manifold. Furthermore, the magnetic Coupling the right voltage transformation through the electrical Bus line converter performed.
Der gesamte Solargenerator erfordert keine elektrische Verbindung zwischen Solarmodulen und elektrischer Sammelleitung.The entire solar generator does not require an electrical connection between Solar modules and electrical manifold.
Die Einzelmodule werden nur mit ihrer Eigenspannung belastet.The individual modules are only loaded with their internal stress.
Bei der Montage entstehen keine Berührungsspannungen.There are no touch voltages during assembly.
Bei Abschattungen liefern nur die betroffenen Solarmodule reduzierten Strom.In the event of shadowing, only the affected solar modules deliver reduced electricity.
Durch die parallele Speisung aller Module auf die elektrische Sammelleitung kann jedes einzelne Modul vom zentralen Power Manager überprüft werden auf Leistungsfähigkeit. Dies kann von großem Vorteil bei PV Fassaden sein, wo die Solarmodule schwer zugänglich sind.Due to the parallel supply of all modules to the electrical bus line every single module can be checked on by the central power manager Performance. This can be of great advantage for PV facades where the Solar modules are difficult to access.
Durch den Berührungsschutz der Solarmodule sowie der einfachen Montage kommen auch ein Solarmodultausch während des Betriebes bzw. eine Erweiterung der Anlage in Frage.Thanks to the protection against accidental contact of the solar modules and the simple installation there is also a solar module replacement during operation or an expansion the facility in question.
Eine Selektion von Solarmodulen für die Reihenschaltung hinsichtlich möglichst einheitlichem Kurzschlußstrom und Füllfaktor ist nicht mehr notwendig. Es können darüber hinaus sogar Solarmodule unterschiedlicher Leistungsklassen oder Technologien in einem Solargenerator installiert werden.A selection of solar modules for the series connection with regard to possible uniform short-circuit current and fill factor is no longer necessary. It can moreover even solar modules of different performance classes or Technologies to be installed in a solar generator.
Entkopplungsdioden können entfallen, da keine Reihenschaltungen mehr vorhanden sind.Decoupling diodes can be omitted because there are no longer any series connections are.
Über die Sammelleitung ist ein Leistungstest der einzelnen Solarmodule möglich.A performance test of the individual solar modules is possible via the manifold.
Individuelles MPP-Tracken (Leistungsanpassung) der einzelnen Solarmodule ist möglich.Individual MPP tracking (power adjustment) of the individual solar modules is possible.
Standardisierung von Fassaden und Großanlagen wird ermöglicht.Standardization of facades and large systems is made possible.
Claims (5)
Photovoltaische Solarmodule geben ihren elektrischen Strom über am Solarmodul befindliche Anschlußklemmen, Stecker oder lose Drähte ab und speisen entweder direkt oder nach Reihenschaltung mit sich selbst auf eine elektrische Sammelleitung zur Weiterleitung an den Bestimmungsort.1. State of the art.
Photovoltaic solar modules emit their electrical current via terminals, plugs or loose wires located on the solar module and feed either directly or after being connected in series with themselves on an electrical collecting line for forwarding to the destination.
dadurch gekennzeichnet, daß die photovoltaischen Solarmodule keine elektrischen Anschlüsse aufweisen und das der vom Solarmodul generierte elektrische Strom einen solarmodulinternen Wandler speist zur Erzeugung eines alternierenden Magnetfeldes und das dieses Magnetfeld über einen Luftspalt bei einem solarmodulexternen Wandler einen Strom induziert, welcher direkt oder gewandelt in eine elektrische Sammelleitung speist und von dort zu einem zentralen Power Manager gelangt.2. claim,
characterized in that the photovoltaic solar modules have no electrical connections and that the electrical current generated by the solar module feeds a converter inside the solar module to generate an alternating magnetic field and that this magnetic field induces a current via an air gap in a converter outside the solar module, which current is directly or converted into an electrical one Feed line and from there to a central power manager.
dadurch gekennzeichnet, daß die elektrische Sammelleitung zu einem zentralen Power Manager führt, welcher Leistungsüberschüsse aufnimmt, weiterverarbeitet und auch die elektrische Sammelleitung mit einer Wechsel- oder Gleichspannung speist zur Aktivierung der magnetisch über einen Luftspalt angekoppelten Solarmodule sowie auch die Aufgabe übernimmt, von Zeit zu Zeit die Einzelsolarmodule auf Leistungsfähigkeit zu überprüfen und die Resultate zu melden bzw. zu speichern.3. subclaim,
characterized in that the electrical manifold leads to a central power manager, which absorbs excess power, processes it further and also feeds the electrical manifold with an AC or DC voltage for activating the solar modules magnetically coupled via an air gap and also takes over the task from time to time Check the performance of the individual solar modules and report or save the results.
dadurch gekennzeichnet, daß die einzelnen Solarmodule durch den zentralen Power Manager im optimalen Leistungsabgabepunkt betrieben werden.4. subclaim,
characterized in that the individual solar modules are operated by the central power manager at the optimal power output point.
dadurch gekennzeichnet, daß die Einzelsolarmodule eine eigenständige Leistungsanpassung an die elektrische Sammelleitung vornehmen.5. subclaim,
characterized in that the individual solar modules make an independent performance adjustment to the electrical bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19718046A DE19718046A1 (en) | 1997-04-29 | 1997-04-29 | Contactless current transfer from photovoltaic solar module to busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19718046A DE19718046A1 (en) | 1997-04-29 | 1997-04-29 | Contactless current transfer from photovoltaic solar module to busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19718046A1 true DE19718046A1 (en) | 1998-11-12 |
Family
ID=7828080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19718046A Withdrawn DE19718046A1 (en) | 1997-04-29 | 1997-04-29 | Contactless current transfer from photovoltaic solar module to busbar |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19718046A1 (en) |
Cited By (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0907210A3 (en) * | 1997-09-30 | 2000-03-08 | Europäische Gemeinschaft (Eg) | Contactless photovoltaic energy-extraction |
| NL1018067C2 (en) * | 2001-05-14 | 2002-11-15 | Stichting Energie | Device for generating photovoltaic energy. |
| US9112379B2 (en) | 2006-12-06 | 2015-08-18 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
| US9130401B2 (en) | 2006-12-06 | 2015-09-08 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US9235228B2 (en) | 2012-03-05 | 2016-01-12 | Solaredge Technologies Ltd. | Direct current link circuit |
| US9291696B2 (en) | 2007-12-05 | 2016-03-22 | Solaredge Technologies Ltd. | Photovoltaic system power tracking method |
| US9318974B2 (en) | 2014-03-26 | 2016-04-19 | Solaredge Technologies Ltd. | Multi-level inverter with flying capacitor topology |
| US9362743B2 (en) | 2008-05-05 | 2016-06-07 | Solaredge Technologies Ltd. | Direct current power combiner |
| US9368964B2 (en) | 2006-12-06 | 2016-06-14 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
| US9401599B2 (en) | 2010-12-09 | 2016-07-26 | Solaredge Technologies Ltd. | Disconnection of a string carrying direct current power |
| US9407161B2 (en) | 2007-12-05 | 2016-08-02 | Solaredge Technologies Ltd. | Parallel connected inverters |
| US9537445B2 (en) | 2008-12-04 | 2017-01-03 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
| US9543889B2 (en) | 2006-12-06 | 2017-01-10 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US9548619B2 (en) | 2013-03-14 | 2017-01-17 | Solaredge Technologies Ltd. | Method and apparatus for storing and depleting energy |
| US9590526B2 (en) | 2006-12-06 | 2017-03-07 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
| US9647442B2 (en) | 2010-11-09 | 2017-05-09 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
| US9644993B2 (en) | 2006-12-06 | 2017-05-09 | Solaredge Technologies Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
| US9673711B2 (en) | 2007-08-06 | 2017-06-06 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
| US9680304B2 (en) | 2006-12-06 | 2017-06-13 | Solaredge Technologies Ltd. | Method for distributed power harvesting using DC power sources |
| US9812984B2 (en) | 2012-01-30 | 2017-11-07 | Solaredge Technologies Ltd. | Maximizing power in a photovoltaic distributed power system |
| US9819178B2 (en) | 2013-03-15 | 2017-11-14 | Solaredge Technologies Ltd. | Bypass mechanism |
| US9831824B2 (en) | 2007-12-05 | 2017-11-28 | SolareEdge Technologies Ltd. | Current sensing on a MOSFET |
| US9853565B2 (en) | 2012-01-30 | 2017-12-26 | Solaredge Technologies Ltd. | Maximized power in a photovoltaic distributed power system |
| US9853538B2 (en) | 2007-12-04 | 2017-12-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US9866098B2 (en) | 2011-01-12 | 2018-01-09 | Solaredge Technologies Ltd. | Serially connected inverters |
| US9869701B2 (en) | 2009-05-26 | 2018-01-16 | Solaredge Technologies Ltd. | Theft detection and prevention in a power generation system |
| US9876430B2 (en) | 2008-03-24 | 2018-01-23 | Solaredge Technologies Ltd. | Zero voltage switching |
| US9923516B2 (en) | 2012-01-30 | 2018-03-20 | Solaredge Technologies Ltd. | Photovoltaic panel circuitry |
| US9941813B2 (en) | 2013-03-14 | 2018-04-10 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
| US9960667B2 (en) | 2006-12-06 | 2018-05-01 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
| US9966766B2 (en) | 2006-12-06 | 2018-05-08 | Solaredge Technologies Ltd. | Battery power delivery module |
| US10115841B2 (en) | 2012-06-04 | 2018-10-30 | Solaredge Technologies Ltd. | Integrated photovoltaic panel circuitry |
| US10230310B2 (en) | 2016-04-05 | 2019-03-12 | Solaredge Technologies Ltd | Safety switch for photovoltaic systems |
| US10396662B2 (en) | 2011-09-12 | 2019-08-27 | Solaredge Technologies Ltd | Direct current link circuit |
| US10673222B2 (en) | 2010-11-09 | 2020-06-02 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
| US10673229B2 (en) | 2010-11-09 | 2020-06-02 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
| US10931119B2 (en) | 2012-01-11 | 2021-02-23 | Solaredge Technologies Ltd. | Photovoltaic module |
| US11018623B2 (en) | 2016-04-05 | 2021-05-25 | Solaredge Technologies Ltd. | Safety switch for photovoltaic systems |
| US11177663B2 (en) | 2016-04-05 | 2021-11-16 | Solaredge Technologies Ltd. | Chain of power devices |
| US11264947B2 (en) | 2007-12-05 | 2022-03-01 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
| US11296650B2 (en) | 2006-12-06 | 2022-04-05 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
| US11309832B2 (en) | 2006-12-06 | 2022-04-19 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US11569659B2 (en) | 2006-12-06 | 2023-01-31 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US11569660B2 (en) | 2006-12-06 | 2023-01-31 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US11687112B2 (en) | 2006-12-06 | 2023-06-27 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
| US11728768B2 (en) | 2006-12-06 | 2023-08-15 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
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| US11881814B2 (en) | 2005-12-05 | 2024-01-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
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-
1997
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| DE3840806A1 (en) * | 1988-11-29 | 1990-05-31 | Licentia Gmbh | Circuit arrangement for parallel connection of any chosen number of pulse invertors |
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Cited By (152)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0907210A3 (en) * | 1997-09-30 | 2000-03-08 | Europäische Gemeinschaft (Eg) | Contactless photovoltaic energy-extraction |
| NL1018067C2 (en) * | 2001-05-14 | 2002-11-15 | Stichting Energie | Device for generating photovoltaic energy. |
| WO2002093655A1 (en) * | 2001-05-14 | 2002-11-21 | Stichting Energieonderzoek Centrum Nederland | Apparatus for generating photovoltaic energy |
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