EP2037537A1 - Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque - Google Patents

Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque Download PDF

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Publication number
EP2037537A1
EP2037537A1 EP07017739A EP07017739A EP2037537A1 EP 2037537 A1 EP2037537 A1 EP 2037537A1 EP 07017739 A EP07017739 A EP 07017739A EP 07017739 A EP07017739 A EP 07017739A EP 2037537 A1 EP2037537 A1 EP 2037537A1
Authority
EP
European Patent Office
Prior art keywords
connection
current
housing
module
modules
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Withdrawn
Application number
EP07017739A
Other languages
German (de)
English (en)
Inventor
Hans Wimmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ENWI-ETEC GMBH
Original Assignee
HaWi Energietechnik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HaWi Energietechnik AG filed Critical HaWi Energietechnik AG
Priority to EP07017739A priority Critical patent/EP2037537A1/fr
Priority to EP08802028A priority patent/EP2191539A2/fr
Priority to PCT/EP2008/007468 priority patent/WO2009033676A2/fr
Publication of EP2037537A1 publication Critical patent/EP2037537A1/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2425—Structural association with built-in components
    • H01R9/245—Structural association with built-in components with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2458—Electrical interconnections between terminal blocks

Definitions

  • the invention relates to a connection module and a current collection module for a pre-collector of a photovoltaic system and an assembly for combining the flow of individual photovoltaic surface elements.
  • Photovoltaic surface elements or photovoltaic modules of photovoltaic systems supply the electricity they generate via respective so-called stranded conductors.
  • the strand lines of the individual photovoltaic surface elements are usually brought together by means of so-called pre-collector to a manifold.
  • Several collection lines are bundled by so-called group collectors.
  • Each of the group collectors is followed by a photovoltaic inverter.
  • the photovoltaic inverter feeds the electricity generated by the photovoltaic system into a power grid, for example the public power grid.
  • the Vorsammler usually have an evaluation for diagnostics of the operation of the photovoltaic surface elements.
  • the entire evaluation of the precollector is arranged on a single board.
  • the problem arises that the collector indicates a malfunction of a single photovoltaic panel.
  • the photoelectric surface element is actually the cause of the malfunction or whether instead the associated evaluation electronics is faulty.
  • a complex error analysis is usually necessary.
  • connection module for a pre-collector of a photovoltaic system according to claim 1
  • current collection module for a pre-collector a photovoltaic system according to claim 9
  • assembly according to claim 13.
  • connection module for a pre-collector of a photovoltaic system.
  • the connection module according to the invention comprises: a connection terminal for connecting a power line of a photovoltaic surface element, at least one electrically connected to the terminal electrically conductive element, a housing which surrounds the at least one electrical component and is formed plate-shaped, that the expansion of the housing in a Thickness direction is several times smaller than an extension of the housing in a direction transverse thereto, and an electrical line connection between the terminal and a connecting element for electrically conductive connection of the connection module with another module.
  • the extent of the housing in the thickness direction is at least three times, in particular five times smaller than the extent of the housing in a direction transverse thereto.
  • the aforementioned object is further achieved with a current collecting module for a pre-collector of a photovoltaic system.
  • the current collecting module according to the invention comprises: a collecting terminal for connecting thereto a collecting line for guiding the total current of a plurality of aforementioned connection modules, an electrical line connection between the collecting terminal and a connecting element for electrically conductive connection of the current collecting module with one of the connection modules, and a housing which encloses at least the line connection and is formed plate-shaped such that the expansion of the housing in a thickness direction is several times less than an extension of the housing in a direction transverse thereto.
  • an assembly in particular a pre-collector for bringing together the flow of individual photovoltaic surface elements is further provided.
  • the module according to the invention comprises at least two of the aforementioned connection modules and one of the aforementioned current collection modules.
  • the invention proposes in particular a modular construction of a pre-collector of a photovoltaic system.
  • connection module according to the invention and the current collection module according to the invention make it possible to create an assembly in the form of a pre-collector with which a fault analysis of the photovoltaic system is facilitated.
  • the fact that the collector is made up of individual modules which are each connected to only a single or a few photovoltaic surface elements makes it easier to diagnose faults when a photovoltaic surface element malfunctions.
  • the connection module connected to the corresponding photovoltaic surface element it is also possible under some circumstances for the connection module connected to the corresponding photovoltaic surface element to be easily replaced. If the malfunction of the photovoltaic surface element occurs even when the connection module has been replaced, this can result Inferred that the malfunction is actually due to the photovoltaic surface element.
  • the connecting element is designed as an attachable to the connection module or the collection module part, which is particularly advantageous at the respective module at an electrical contact can be attached.
  • This is an assembly of individual connection modules such that the electrically conductive connection between the modules is made possible without much effort.
  • the connecting element is advantageously designed as part of the connection module or the collection module, in particular an integral part of the housing.
  • the connection modules can be designed in such a way that they can be connected to one another by means of a plug connection directly or via the connection elements, which are preferably designed as a bridge connecting two modules, whereby the connecting element automatically produces the electrically conductive connection when the connection modules are plugged together.
  • the housing has an electrical contact point which is electrically conductively connected to the connection terminal or the collective terminal and to which a connection element of a further connection module can be electrically conductively connected.
  • the ability to mount the connection modules together is thus also facilitated.
  • the at least one electrical component comprises evaluation electronics which are designed to evaluate the characteristic of the current entering via the connecting terminal and to generate a measuring current characterizing this characteristic.
  • the transmitter is advantageously designed to determine the proper function of the photovoltaic surface element from the characteristic of the incoming current.
  • the evaluation electronics can be set up to provide a measured value for an evaluation of the yield with regard to the quantity of the current produced by the photovoltaic surface element. From the measured characteristic of the incoming current, the proper functionality of the photovoltaic surface element to be checked or an error analysis to be made.
  • the evaluation electronics are coupled to the connecting element such that the measuring current can be passed on via a measuring current line.
  • the measuring current line thus enables the central readout of the measurement currents generated in the individual connection modules, each of which characterizes a photovoltaic surface element assigned to the individual connection module.
  • the housing has a channel for guiding at least one measuring current line, via which the measuring current can be passed on.
  • the measuring current line is designed as a ribbon cable. The channel can thus be made correspondingly flat in cross section.
  • the terminal and / or the electrical line connection is also enclosed by the housing / is. This reduces, for example, the risk of a short circuit between individual connection modules.
  • the at least one electrical component comprises an overcurrent protection device or a current fuse and / or a device for preventing reverse currents, in particular a diode.
  • the means for preventing reverse currents may include, for example, a semiconductor diode or a tube diode.
  • the connecting element is designed as a bridge element which merely establishes a connection to a single further module, in particular an adjacent module. In this case, assembling the individual connection modules is particularly easy.
  • the current collecting module has a measuring device arranged in the housing, which is designed to measure the total current and to generate a measuring current characterizing the current intensity of the total current.
  • This measuring device allows an evaluation of the yield of the photovoltaic system at the pre-collector level.
  • the housing of the current collecting module in this embodiment is twice as thick as the associated terminal modules. It is also advantageous if the housing also surrounds the collecting terminal.
  • the modules are arranged side by side in such a way that the plate surfaces or large-area sides of the housing adjoin one another.
  • the modules are cascaded side by side so that the assembly forms a composite and optionally continuous elongated body, the individual modules being "slices" of this elongated body.
  • the connecting elements of modules arranged next to one another are arranged offset from one another in a direction along the plate surfaces. This makes it possible to put the modules in Thickness particularly thin form, since the respective modules associated connecting elements are not mutually in the way.
  • connecting elements of the individual modules together form an integral cross member, which produces an electrically conductive connection between the current collecting module and the individual connection modules.
  • the electrical connection between all the modules is particularly fast to manufacture and separate again.
  • a presently modular designed assembly 10 forms a pre-collector for a photovoltaic system, which serves to merge strand lines 11 of individual (not shown) photovoltaic surface elements to a manifold 13.
  • Several buses 13 are bundled by what are commonly called group collectors (not shown).
  • group collectors not shown
  • a photovoltaic inverter (not shown) can connect.
  • the photovoltaic inverter is usually connected directly to a power grid (not shown).
  • the assembly 10 has a plurality of connection modules 12 and a current collecting module 14.
  • the connection modules 12 each have two connection terminals 16 for connecting thereto a strand line 11 or a strand of a photovoltaic surface element.
  • the connection modules 12 can also be designed with only one connection terminal 16 each. In the illustration according to Fig. 1 the connection terminals 16 are not directly visible.
  • the connection terminals 16 are located within a respective housing 20 of the connection modules 12 directly below respective connection openings or bores 26 for insertion of a connection tool (in the present case in the form of a screwdriver) in the housings 20.
  • the respective housings 20 and 22 of the connection modules 12 and the current collecting module 14 are plate-shaped, wherein the extension of the housing in the thickness direction of these "plates" is several times smaller than the extent transverse thereto.
  • the housings 20 and 22 are designed such that the modules 12 and 14 can be arranged adjacent to each other with their large-area sides or plate surfaces adjacent to each other, as in Fig. 1 shown.
  • the resulting assembly 10 then forms a composite and presently contiguous elongate body.
  • the housings 20 of the connection modules 12 each enclose an electronics unit 28.
  • the electronics 28 comprise a plurality of components and can, as in FIG Fig. 4 shown by way of example, an electrical component 30a in the form of an overcurrent protection device and / or an electrical component 30b in the form of a diode.
  • the electronics 28 also comprise evaluation electronics which are designed to evaluate the characteristic of the current entering via the connection terminal 16 and to generate a measuring current characterizing the characteristic.
  • the electronics 28 are each in a rear part of the housing 20 according to Fig. 1 or a left-hand part in the illustration according to Fig. 4 arranged.
  • the location of the arrangement of the electronics 28 in the housing 20 of the connection modules 12 is analogous to the location of the arrangement of a measuring device 29 in the housing 22 of the current collecting module 14 (see Fig. 2 ) designed.
  • the housings 20 and 22 also each have a channel 33 for guiding an electrical line 32 or a plurality of electrical lines 32, which connect the terminals 16 and 18 to the electronics 28 and the measuring device 29, respectively.
  • the electrical leads 32 are inserted in particular in the form of punching plates in the channel 33, which is recessed in the housing 20 and 22 (see Fig. 2 and Fig. 4 ).
  • connection module 12 and the current collection modules 14 (which are thus designed such a plate-shaped) when arranged as assembly 10 in the form of a ranking or layering next to each other and thereby with their large-scale sides or plate surfaces together at.
  • the individual modules 12 and 14 are by means of electrical connection elements 34 in the form of bridges (see Fig. 1 , in Fig. 3 If these bridges are not shown), they are connected to one another in such a way that, during operation, the electrical current supplied to the connection modules 12 via the connection terminals 16 can be passed on to the current collection module 14 via these connection elements.
  • the connecting elements 34 each have two connection plug contacts, which are not illustrated any further in detail, of which in each case one plugged into a single current collecting module 14 or connection module 12 and thereby to contacts 36 (see Fig. 3 ) is electrically contacted in the individual modules 12 and 14, respectively.
  • the individual modules 12 and 14 further each have a transversely through the associated plate-shaped housing 20 and 22 extending channel 38 for a measuring current line 40 (see Fig. 3 ) on.
  • the measuring current line 40 leads through all the modules 12 and 14 as an additional component and is contacted on the individual module 12 or 14 by means of a punch-clamp connection (not shown).
  • a measuring current can be forwarded to an evaluation device not illustrated in more detail for the associated photovoltaic system via the measuring current line 40.

Landscapes

  • Photovoltaic Devices (AREA)
EP07017739A 2007-09-11 2007-09-11 Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque Withdrawn EP2037537A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07017739A EP2037537A1 (fr) 2007-09-11 2007-09-11 Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque
EP08802028A EP2191539A2 (fr) 2007-09-11 2008-09-11 Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque
PCT/EP2008/007468 WO2009033676A2 (fr) 2007-09-11 2008-09-11 Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07017739A EP2037537A1 (fr) 2007-09-11 2007-09-11 Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque

Publications (1)

Publication Number Publication Date
EP2037537A1 true EP2037537A1 (fr) 2009-03-18

Family

ID=39099799

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07017739A Withdrawn EP2037537A1 (fr) 2007-09-11 2007-09-11 Module de raccordement, module de collecte de courant et bloc ainsi fabriqué pour un précollecteur d'une installation photovoltaïque
EP08802028A Withdrawn EP2191539A2 (fr) 2007-09-11 2008-09-11 Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08802028A Withdrawn EP2191539A2 (fr) 2007-09-11 2008-09-11 Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque

Country Status (2)

Country Link
EP (2) EP2037537A1 (fr)
WO (1) WO2009033676A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008064450B4 (de) * 2008-12-22 2010-11-25 Enwi-Etec Gmbh Photovoltaikanlagen-Anschlussmodul
DE102009042084A1 (de) * 2009-09-18 2011-06-22 Gehrlicher Solar AG, 85609 Wartungsarmes elektronisches Bauelement zur Verhinderung von Rückströmen bei gleichzeitigem Schutz vor Überströmen in Photovoltaikanlagen
WO2013081851A1 (fr) * 2011-12-02 2013-06-06 Schneider Electric USA, Inc. Combinateur de chaînes photovoltaïques à dispositif de déconnexion possédant un moyen de conversion entre systèmes mis à la masse et ceux non mis à la masse
EP2086101A3 (fr) * 2008-01-31 2014-05-07 Wieland Electric GmbH Dispositif d'alimentation en courant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625240A1 (de) 1986-07-25 1988-01-28 Wieland Elektrische Industrie Elektrische anschluss- und/oder verbindungsklemme, insbesondere reihenklemme mit klemmenbruecke
DE4402002A1 (de) * 1994-01-18 1995-07-20 Wago Verwaltungs Gmbh E/A-Modul für einen Datenbus
DE19534315C1 (de) * 1995-09-15 1997-02-13 Weidmueller Interface Elektronikreihenklemme
DE19533364C1 (de) 1995-09-09 1997-02-13 Weidmueller Interface Elektronikreihenklemmanordnung
WO1997010692A1 (fr) * 1995-09-13 1997-03-20 The Whitaker Corporation Systeme de montage et de raccordement electrique de modules electroniques empilables
DE202006003596U1 (de) 2006-03-07 2006-07-13 Butzer, Werner Fotovoltaikanlage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625240A1 (de) 1986-07-25 1988-01-28 Wieland Elektrische Industrie Elektrische anschluss- und/oder verbindungsklemme, insbesondere reihenklemme mit klemmenbruecke
DE4402002A1 (de) * 1994-01-18 1995-07-20 Wago Verwaltungs Gmbh E/A-Modul für einen Datenbus
DE19533364C1 (de) 1995-09-09 1997-02-13 Weidmueller Interface Elektronikreihenklemmanordnung
WO1997010692A1 (fr) * 1995-09-13 1997-03-20 The Whitaker Corporation Systeme de montage et de raccordement electrique de modules electroniques empilables
DE19534315C1 (de) * 1995-09-15 1997-02-13 Weidmueller Interface Elektronikreihenklemme
DE202006003596U1 (de) 2006-03-07 2006-07-13 Butzer, Werner Fotovoltaikanlage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2086101A3 (fr) * 2008-01-31 2014-05-07 Wieland Electric GmbH Dispositif d'alimentation en courant
DE102008064450B4 (de) * 2008-12-22 2010-11-25 Enwi-Etec Gmbh Photovoltaikanlagen-Anschlussmodul
DE102009042084A1 (de) * 2009-09-18 2011-06-22 Gehrlicher Solar AG, 85609 Wartungsarmes elektronisches Bauelement zur Verhinderung von Rückströmen bei gleichzeitigem Schutz vor Überströmen in Photovoltaikanlagen
WO2013081851A1 (fr) * 2011-12-02 2013-06-06 Schneider Electric USA, Inc. Combinateur de chaînes photovoltaïques à dispositif de déconnexion possédant un moyen de conversion entre systèmes mis à la masse et ceux non mis à la masse
US9397235B2 (en) 2011-12-02 2016-07-19 Schneider Elelctric Usa, Inc. Photovoltaic string combiner with disconnect having provision for converting between grounded and ungrounded systems

Also Published As

Publication number Publication date
WO2009033676A3 (fr) 2009-08-20
WO2009033676A2 (fr) 2009-03-19
EP2191539A2 (fr) 2010-06-02

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