WO2009033676A2 - Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque - Google Patents

Module de raccordement, module collecteur de courant et ensemble doté de ces modules pour un collecteur en amont dans une installation photovoltaïque Download PDF

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Publication number
WO2009033676A2
WO2009033676A2 PCT/EP2008/007468 EP2008007468W WO2009033676A2 WO 2009033676 A2 WO2009033676 A2 WO 2009033676A2 EP 2008007468 W EP2008007468 W EP 2008007468W WO 2009033676 A2 WO2009033676 A2 WO 2009033676A2
Authority
WO
WIPO (PCT)
Prior art keywords
connection
current
housing
module
terminal
Prior art date
Application number
PCT/EP2008/007468
Other languages
German (de)
English (en)
Other versions
WO2009033676A3 (fr
Inventor
Hans Wimmer
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 EP08802028A priority Critical patent/EP2191539A2/fr
Publication of WO2009033676A2 publication Critical patent/WO2009033676A2/fr
Publication of WO2009033676A3 publication Critical patent/WO2009033676A3/fr

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Classifications

    • 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 collecting module for a pre-collector of a photovoltaic system and an assembly for combining the current of individual photovoltaic surface elements.
  • Photovoltaic surface elements or photovoltaic modules of photovoltaic systems supply the power generated by them via respective so-called string lines.
  • the strands of the individual photovoltaic surface elements are usually combined 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. Underlying task
  • connection module for a pre-collector of a photovoltaic system according to claim 1 a current collection module for a pre-collector, a photovoltaic system according to claim 9 and a construction group ⁇ group 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 electrical component conductively connected to the connection terminal, a housing which encloses the at least one electrical component and is plate-shaped such that the extent 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 ⁇ 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 current collecting module comprises: a collecting terminal for connecting thereto a collecting line for guiding the total current of a plurality of the 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 at least the line connection encloses and is 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 as well as the current collecting 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.
  • connection element is designed as a part that can be attached to the connection module or the collection module, which part can be attached to an electrical contact in an advantageous manner on the respective module.
  • This is an assembly of individual connection modules such that the electrically conductive connection between the modules is made possible without much effort.
  • connection element is advantageously designed as part of the connection module or of the collection module, in particular an integral part of the housing.
  • the connection modules can be embodied such 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, wherein the connecting element forms the electrically conductive connection when the connection modules are plugged together produces automatically.
  • 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 connection 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.
  • an overcurrent protection device in each of the connection modules ensures that when such an overcurrent occurs, only the power supply of a single connection module is interrupted and the remaining connection modules continue to be able to supply current properly.
  • 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 enables an evaluation of the yield of the photovoltaic system at the 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 to 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.
  • FIG. 1 is a three-dimensional representation of an embodiment according to the invention of an assembly in the form of a pre-collector with a plurality of connection modules and a current collection module,
  • Fig. 3 shows the section IM - III in Fig. 1 and
  • a presently modular designed assembly 10 forms a pre-collector for a photovoltaic system, which serves to string lines 11 individual (not shown) photovoltaic surface elements to a manifold 13 together to be supplied.
  • 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 supply (not shown).
  • the assembly 10 has a plurality of connection modules 12 and a current collection 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 of FIG. 1, the 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.
  • Fig. 2 shows the current collecting module 14 of the assembly 10 in a state in which a side part of a housing 22 of the current collecting module 14 is removed.
  • the housing 22 of the current collecting module 14 has a collecting terminal 18 with a connection opening or bore 24, the diameter of which is greater than the diameter of the connecting terminals 16.
  • the collecting terminal 18 serves to connect the collecting line 13 thereto.
  • the collecting line 13 in turn serves to guide the Total current of several connection modules 12.
  • the connection terminals 16 of the connection modules 12 are designed analogously to the collective terminal 18, only smaller dimensions.
  • 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 housings 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 with their large-area sides or plate surfaces adjacent to each other can be arranged side by side, as shown in Fig. 1.
  • the resulting assembly 10 then forms a composite and presently contiguous elongate body.
  • the housings 20 of the connection modules 12 each enclose an electronic unit 28.
  • the electronics 28 comprise a plurality of components and, as shown by way of example in FIG. 4, an electrical component 30a in the form of an overcurrent protection device and / or an electrical component 30b in the form of a diode exhibit.
  • 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 arranged in a rear part of the housing 20 according to FIG. 1 or a left-hand part in the illustration according to FIG. 4.
  • 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) configured.
  • 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 into the channel 33, in particular in the form of stamped sheet metal, which is recessed in the housing 20 or 22 (see FIGS. 2 and 4).
  • connection module 12 and the current collecting modules 14 lie next to each other when arranged as an assembly 10 in the form of a series or stratification and thereby with their large-area sides or Plate surfaces together at.
  • the individual modules 12 and 14 are connected by means of electrical connecting elements 34 in the form of bridges (see Fig. 1, in Fig. 3, these bridges are not shown) connected to each other such that in operation via these connecting elements 34 of the connection modules 12 on the Terminals 16 provided electrical power to the current collection module 14 can be passed.
  • the connecting elements 34 each have two connection plug contacts which are not further illustrated, one of which is plugged into a single current collecting module 14 or connection module 12 and electrically connected to contacts 36 (see FIG. 3) in the individual modules 12 and 14, respectively is contacted.
  • the individual modules 12 and 14 furthermore each have a channel 38 extending transversely through the associated plate-shaped housing 20 or 22 for a measuring current line 40 (see FIG. 3).
  • the measuring current line 40 leads through all modules 12 and 14 as an additional component and is contacted to the individual module 12 or 14 by means of a stamped-clamp connection (not shown).
  • a measuring current can be passed on to a not further illustrated evaluation device for the associated photovoltaic system via the measuring current line 40.

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un module de raccordement (12) pour un collecteur en amont (10) dans une installation photovoltaïque, ce module présentant les caractéristiques suivantes: une borne de raccordement (16) pour le raccordement d'une ligne de courant d'un élément plat photovoltaïque, au moins un composant électrique (30a, 30b) en liaison électrique avec la borne de raccordement (16), un boîtier (20) qui entoure le ou les composants électriques (30a, 30b) et qui forme une plaque de manière à ce que l'extension du boîtier (20) dans le sens de l'épaisseur est un multiple inférieur à l'extension du boîtier (20) dans le sens transversal, et une ligne électrique (32) entre la borne de raccordement et un élément de connexion (34) pour relier électriquement le module de raccordement (12) à un autre module (12,14).
PCT/EP2008/007468 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 WO2009033676A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07017739.9 2007-09-11
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 (2)

Publication Number Publication Date
WO2009033676A2 true WO2009033676A2 (fr) 2009-03-19
WO2009033676A3 WO2009033676A3 (fr) 2009-08-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (2)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007145A1 (de) * 2008-01-31 2009-08-27 Wieland Electric Gmbh Stromeinspeisungsvorrichtung
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
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

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
DE19534315C1 (de) * 1995-09-15 1997-02-13 Weidmueller Interface Elektronikreihenklemme
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

Also Published As

Publication number Publication date
WO2009033676A3 (fr) 2009-08-20
EP2191539A2 (fr) 2010-06-02
EP2037537A1 (fr) 2009-03-18

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