WO2010012629A2 - Installation photovoltaïque et boîte de jonction à un générateur dans une installation photovoltaïque - Google Patents

Installation photovoltaïque et boîte de jonction à un générateur dans une installation photovoltaïque Download PDF

Info

Publication number
WO2010012629A2
WO2010012629A2 PCT/EP2009/059365 EP2009059365W WO2010012629A2 WO 2010012629 A2 WO2010012629 A2 WO 2010012629A2 EP 2009059365 W EP2009059365 W EP 2009059365W WO 2010012629 A2 WO2010012629 A2 WO 2010012629A2
Authority
WO
WIPO (PCT)
Prior art keywords
junction box
generator
generator junction
control device
evaluation
Prior art date
Application number
PCT/EP2009/059365
Other languages
German (de)
English (en)
Other versions
WO2010012629A3 (fr
Inventor
Alexander Bischoff
Original Assignee
Phoenix Solar 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 Phoenix Solar Ag filed Critical Phoenix Solar Ag
Publication of WO2010012629A2 publication Critical patent/WO2010012629A2/fr
Publication of WO2010012629A3 publication Critical patent/WO2010012629A3/fr

Links

Classifications

    • 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
    • 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
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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

Definitions

  • the invention relates to a photovoltaic system with an inverter and a plurality of solar modules connected to sub-generators and a generator terminal box for such a photovoltaic system.
  • PV photovoltaic
  • the solar modules of a subgenerator are typically connected in series in a module string, but may also be present in several parallel strands.
  • a sub-generator outputs its DC power via two terminals.
  • the DC power of the overall PV generator is fed via an inverter arrangement in a AC voltage grid, which is typically used in a plant center in a single inverter, which in turn may consist of several blocks.
  • generator junction boxes are placed close to the sub-generators.
  • several subgenerators are combined in parallel circuit via busbars and the cumulative DC power is fed via a common cable directly or indirectly to the central inverter.
  • the inverter arrangement also contains a control device connected thereto, which is also signal-conducting with the generator junction boxes.
  • the currents are monitored on the connection lines of the individual sub-generators and limited by safety devices.
  • Evaluation devices in the generator junction boxes are in communication with the control device of the inverter and report measured values, possibly averaged over time, to the control device, from which in turn data can be transmitted to a remote control station.
  • Inverter, control unit and generator junction boxes are manufacturer-specific coordinated.
  • the invention has for its object to provide a flexible configurable and modifiable photovoltaic system and a suitable generator junction box.
  • the control device may in particular be a so-called programmable logic controller (PLC) whose programmability is standardized.
  • PLC programmable logic controller
  • the programming of such a programmable logic controller can advantageously be done using a temporarily connectable to this computer, for which an interface for a computer is provided on the control device.
  • the programmable logic controller is a cost-effective, by the standardized flexible programmability particularly advantageous embodiment of a separate programmable controller.
  • the control device can also be given by a computer with a graphical user interface itself.
  • the programmable control device can advantageously be connected in a conventional manner via a data connection, wired via an electrical or preferably optical signal line or wirelessly, to a remote control center, for which advantageously common data communication modules can be provided in the control center.
  • the programmable controller is over a preferably digital signal connection with an evaluation of at least one of the plant center spaced and closer than the plant center at sub-generators of the system arranged generator junction box connected, wherein advantageously by the inverter arrangement independent programmable controller, the type of signal connection is largely arbitrary and also changeable. If necessary, signal converters are provided at signal terminals of the programmable controller.
  • optoelectronic converters for an advantageous embodiment of the signal line using an optical waveguide, preferably a polymer optical waveguide, for larger signal line lengths and an optical waveguide of lower attenuation, for example, an HCS fiber may be provided.
  • the signal line is constructed in particular in the typical case of a system with a plurality of spatially distributed generator junction boxes, each with its own evaluation as a bus system in which the individual evaluation individual digital addresses are assigned.
  • the evaluation device is arranged on a circuit carrier separate from the current measuring devices and the safety devices.
  • the solar power path is formed in the generator junction box, in particular, by the direct current lines coming from the several subgenerators and the direct current line going directly or indirectly to the inverter and bus bars for summing the incoming currents from the subgenerators to the outgoing line to the inverter.
  • the DC lines typically each contain a core for positive pole and negative pole of the DC voltage and are usually designed as a single-core cable, which is to be assumed without loss of generality.
  • the evaluation device For monitoring the system, in particular current measuring devices are provided, the measured values of which are fed to the evaluation device. Additional measured values can additionally be detected and fed to the evaluation device.
  • the evaluation device transmits the measured values or values derived therefrom in the form of digital data via a signal line to the programmable control device in the plant center. In a preferred simple embodiment, the evaluation device only performs digitization of the measured values and their transmission to the plant center.
  • the evaluation device in an expanded version can also subject measured values to a preprocessing, such as a temporal averaging or a threshold comparison, and transmit the data derived from the processing of the measured values to the plant center and / or detect disturbances of the subgenerators or the generator junction box and to the Lead the plant center
  • the arrangement of the evaluation device on a circuit board which is separated from components of the solar power path, in particular the important for plant monitoring current measuring devices within the generator junction box, allows for a largely free choice and subsequent change in the type of current measuring devices and optionally additional measuring and
  • Measured values are subjected to analog-to-digital conversion via the signal line before being transmitted to the plant headquarters.
  • the digitization is preferably carried out before such preprocessing.
  • a measured value preprocessing in the evaluation device may include, for example, a particular time-related notification of measured values, a threshold value comparison, etc.
  • the evaluation device can, in particular in the embodiment with preprocessing of the measured values, advantageously contain a digitally programmable module, in particular a microprocessor or microcontroller.
  • Circuit carrier in the evaluation device may be, for example, a circuit board.
  • the evaluation device is modular in structure with individually removable and add-on components which can advantageously be detachably arranged on slots or in a particularly advantageous embodiment on a rail.
  • the separation of the current path components, in particular of the current measuring devices, from the circuit carrier of the evaluation device enables a stronger decoupling of the electronic components of the evaluation device from the high voltage, typically in the kilovolt range, leading solar power path in the gengerator junction box.
  • the solar power path within the generator junction box includes, in particular, the cable sections, input terminals, busbars coming from the partial generators, cable sections going out to the inverter in the central plant.
  • the evaluation device can be spatially better separated from the high-voltage leading solar power path in the generator junction box and arranged in an advantageous embodiment in a partitioned from the solar power path subspace of the generator junction box.
  • a subspace can advantageously also be shielded against electromagnetic radiation stronger than the leading high voltage space of the generator junction box, so that the electronic components of the evaluation better against damage by z. B. occurring in flashes electromagnetic pulses, but are also protected against high voltage flashovers in the generator junction box itself.
  • the monitoring of the currents on the DC lines of the solar power path by means of current measuring devices, which are poten- ally separated from solar power path.
  • current measuring devices which are poten- ally separated from solar power path.
  • known per se current measuring devices are suitable, which exploit the Hall effect for generating a voltage dependent on the current on a DC line voltage in a separate from the potential of the DC line measuring circuit.
  • An advantage for reducing the coupling of interference in the evaluation is also the execution of the signal lines between the generator junction boxes as an optical transmission line with an optical waveguide, in particular with respect to the coupling to opto-electronic converter particularly favorable polymer optical waveguides.
  • the current measuring devices are advantageously designed as discrete assemblies, which individual individual lines to be monitored or groups of several Ren lines assigned and are individually interchangeable, for which the modules can be designed in an advantageous embodiment for mounting on conventional rail systems.
  • Overcurrent protection devices on the individual DC lines are advantageously independent of the current measuring devices fuses.
  • overvoltage protection devices can be provided in the generator junction box.
  • Fig. 2 shows a structure of a generator junction box.
  • Fig. 3 is an evaluation
  • FIG. 1 schematically shows essential components of a preferred embodiment of an installation center for a photovoltaic system with a plurality of solar modules SM combined in several sub-strands, wherein in the example shown, it is assumed that at least three generator junction boxes GA, GB, GC within the photovoltaic system System are provided, which are connected on the one hand via signal lines SAB, SC with a programmable logic controller PLC in the plant center and on the other hand via DC lines PLA, PLB, PLC with an inverter WR in the plant headquarters.
  • the generator junction boxes GA, GB, GC the solar currents generated in several subgenerators are advantageously combined in each case and fed to the inverter via the DC lines PLA, PLB, PLC, which preferably each contain two single-core cables.
  • the signal lines SAB, SC are advantageously designed as BUS system lines and connect the programmable logic controller PLC with digital electronic evaluation in the generator junction boxes, wherein in the sketched example, the generator junction boxes GA, GB in a cascaded sequence on a bus line SAB and the generator junction box GC is connected to its own BUS line SC.
  • Other configurations including the branching of a BUS line are possible and known per se.
  • the signal lines SAB, SC can be embodied in the usual way as electrical lines, but are executed in a preferred embodiment as optical signal lines, in particular as a polymer optical waveguide and thus particularly störunantig- Ng against the coupling of electromagnetic interference.
  • a conversion of optical signals into electrical signals suitable for the control device and vice versa takes place in electrooptical signal transducers indicated by EO.
  • line-bound signal connections and wireless signal connections between the plant center and the generator junction boxes can be provided.
  • the programmable controller which forms the control device SPS of the photovoltaic system in the plant control center can be connected to a conventional computer CO, for example for initial setup, for changes to the operating program or for diagnostic purposes via a standardized interface RS.
  • the control device SPS receives measurement signals and signal and / or fault signals derived from measured values by preprocessing from the individual generator junction boxes via the signal lines SAB, SC and can furthermore advantageously be connected to the inverter WR via a further signal line SR and, for example, operating parameters of the change - record and evaluate.
  • the control device SPS can in particular make its own evaluations from the received data according to predetermined programming and can in particular transmit data via a data communication module DK, such as measured values, values derived therefrom or fault messages to a remote control center and, in a further development, also receive data from a remote control center.
  • a data communication module DK such as measured values, values derived therefrom or fault messages
  • the control device SPS is separated from the inverter WR and programmable in a standardized manner defined for programmable logic controllers.
  • the free, standardized programmability of the PLC allows a flexible and, if necessary, easily modifiable specification of criteria for the control and / or monitoring of the photovoltaic system.
  • the control device is flexibly adaptable as a programmable logic controller to different and also variable equipment of the generator junction boxes.
  • control devices are specified as a functional unit with the inverter and can not be changed or only in a few parameters (for example threshold values, evaluation times) or only by the inverter manufacturer, the latter usually only to a very limited extent.
  • the programmable logic controller PLC is separated from the inverter WR and connected to it only via a signal line SR and independent of the inverter and of restrictions by the inverter manufacturer freely and flexibly programmable.
  • Fig. 2 shows schematically an advantageous embodiment of a generator junction box GK, to which a plurality of partial generators TG1, TG2, TG3, ... are connected, each with a plurality of solar modules SM a photovoltaic system.
  • the currents generated in the individual sub-generators are preferably connected in two poles via individual input lines to the generator junction box, the input lines in FIG. 2 associated with the positive poles of the output voltages of the partial generators being connected to P1, P2, P3, the input lines assigned to the negative poles of the output voltages of the partial generators to M1 , M2, M3 are designated.
  • the lines P 1, P 2, P 3,..., And M 1, M 2, M 3 are each two individually assigned security elements Sl two busbars SAP for the lines P1, P2, P3 or SAM assigned to the positive poles of the generator voltages for the Minuspo- len assigned Lines M1, M2, M3 supplied. As input lines, the entire line paths between the sub-generators and the busbars are considered.
  • SAP is a standardization of the positive or negative potentials of the outputs of the sub-generators and a summary of the partial streams of the individual sub-generators instead of a summation current, rather via a DC line PL as an output line directly or via a DC main distributor or in Cascaded configuration of the wiring via a further generator junction box the inverter WR is supplied in the plant center.
  • the safety devices Sl can be designed as a fuse switch, but are formed in a preferred embodiment by fuses.
  • fuse elements can also be arranged only in each case one of two sub-generator associated lines and / or the sub-generators can also be grounded on one side. The sketched version is however preferred.
  • an overvoltage protection device US can be provided in a manner known per se, which limits overvoltages between the busbars SAP, SAM against each other and / or against reference potential.
  • Such a construction of generator junction boxes is in principle common.
  • the described elements of the current measuring devices ME, the fuse elements Sl, the overvoltage protection device US and the busbars SAP, SAM are arranged together with an electronic evaluation device on a common board.
  • the evaluation device AE is advantageously arranged separately from the components described above, and the current-measuring devices ME and the securing elements S1 can advantageously be arranged in each case on common rail systems and individually detachable and / or replaceable.
  • the evaluation device advantageously contains an analog-to-digital converter stage AD, which digitize the analog measured value signals generated by the current measuring devices.
  • the analog-to-digital converter stage AD advantageously contains a plurality of analog-to-digital converters, which are preferably each assigned to a current measuring device. In another embodiment, it may also be provided that an analog-to-digital converter sequentially digitizes the measured values of a plurality of current-measuring devices.
  • the evaluation device AE contains communication devices for connection to a BUS line system for transmitting signals at least from the evaluation device AE of the generator connection box GK to the control device SPS in the plant center, preferably for bidirectional data transmission, wherein the bidirectional transmission in particular also signals of the control device SPS for retrieving Values from the evaluation AE may contain.
  • the communication devices for connecting the evaluation device AE to a digital BUS line system and for data transmission can be selected in a preferred embodiment.
  • guidance electro-optical converter which cooperate with optical waveguides, in particular polymer optical waveguides as signal lines SL of the BUS line system.
  • a plurality of such transducers in the illustrated embodiment, a first converter EO1 and an additional converter EOZ be provided to allow, for example, a cascaded arrangement of generator junction boxes on a bus line or a branch of a bus line.
  • Flexible configurations of an optical BUS line system are also possible by known, purely optical coupling arrangements for coupling a plurality of optical lines. Instead of the optical signal lines, it is also possible to provide electrical signal lines or wireless signal connections with correspondingly known interface components in place of the transducers EO1, EOZ
  • a converter device PR can be provided, which in the preferred simple case generates only one data stream from the digitized values without changing them or new ones Derive values from these.
  • the converter device can advantageously be formed by a bus coupler.
  • the converter device PR can also contain a programmable module, for example in the manner of a microprocessor or microcontroller, in which in particular measuring signals of the current measuring devices ME, which are fed to the converter via measuring lines ML and an analog-to-digital converter stage AD, are detected. cached and possibly also processed to new values or signals.
  • a programmable module for example in the manner of a microprocessor or microcontroller, in which in particular measuring signals of the current measuring devices ME, which are fed to the converter via measuring lines ML and an analog-to-digital converter stage AD, are detected. cached and possibly also processed to new values or signals.
  • the components AD, PR, EO1, EOZ and optionally further components of the evaluation device can advantageously be arranged on a common carrier, wherein preferably, as shown in Fig. 3 sketched such a support by a rail, for example in the manner of a DIN rail HS, may be formed on which the plurality of components of the evaluation device are held and individually detachable.
  • the evaluation device can thereby be constructed to a high degree modular and flexibly changeable, in particular also be expandable to other components as needed.
  • the AD converters AD1, AD2, AD3,... Convert the analog measurement values of the current measuring devices ME1, ME2, ME3,... Into digital signals which are fed to a BUS coupler BK, which generates a data stream and with this one electro-optical converter drives, which generates an optical signal for transmission to the plant center and coupled into an optical waveguide SL.
  • the current measuring devices ME are advantageously isolated from the current paths whose currents they each measure, executed and arranged.
  • the current measuring devices ME are provided by measuring sensors, which surround the line sections of the current paths and exploit the Hall effect for generating measuring signals which depend on the respective currents on the lines.
  • the evaluation device AE can advantageously be arranged in a subspace TR of the generator junction box GK, which is separated from the remaining interior of the generator junction box, in which the components of the solar circuits, in particular the busbars, the current measuring devices and the overvoltage protection device are arranged.
  • the subspace TR may in an advantageous development by additional measures an improved seal against moisture and / or have a relation to the rest of the interior of the generator junction box GK amplified electromagnetic shield so that the electronic components of the evaluation AE against the coupling of electromagnetic interference, which distort the signal transmission or destroy strong electronic pulses and electronic components are protected.
  • this separation also has the particular advantage that the evaluation, in contrast to the common arrangements in which all The components of the solar circuits and the evaluation device lying within the generator junction box are arranged on a common circuit carrier and are closely and inflexibly tuned to the inverter in the plant center and a control unit integrated into a functional unit, the particular advantage that the evaluation unit AE separate according to the invention is flexible to different configurations of a generator junction box, in particular the type of current measurement and / or obtaining further measured values can be adapted.
  • the evaluation device can also be supplied with a signal from the overvoltage protection device US and / or measuring signals from other sensors, for example temperature or humidity sensors.
  • the power supply of the individual generator junction boxes or of the active electrical / electronic components contained therein can be carried out in a manner known per se from known systems, in particular via a transformer connected to the AC mains WN in the plant center and alternating voltage or DC power supply lines of FIG the plant center to the individual generator junction boxes ,.
  • Such power supplies of the generators junction boxes are assumed to be known and not shown for clarity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne des installations photovoltaïques de grandes dimensions, dans lesquelles des éléments de l'installation sont rassemblés dans au moins une boîte de jonction à un générateur. L'invention concerne une forme d'exécution avantageuse d'une telle installation photovoltaïque comprenant une boîte de jonction à un générateur; ainsi qu'une boîte de jonction à un générateur pour cette installation photovoltaïque, ladite installation étant caractérisée en ce qu'il est prévu, en particulier, une construction modulaire présentant une séparation des différents composants fonctionnels.
PCT/EP2009/059365 2008-07-31 2009-07-21 Installation photovoltaïque et boîte de jonction à un générateur dans une installation photovoltaïque WO2010012629A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008010312U DE202008010312U1 (de) 2008-07-31 2008-07-31 Photovoltaische Anlage und Generatoranschlusskasten in einer photovoltaischen Anlage
DE202008010312.6 2008-07-31

Publications (2)

Publication Number Publication Date
WO2010012629A2 true WO2010012629A2 (fr) 2010-02-04
WO2010012629A3 WO2010012629A3 (fr) 2010-06-10

Family

ID=39810103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059365 WO2010012629A2 (fr) 2008-07-31 2009-07-21 Installation photovoltaïque et boîte de jonction à un générateur dans une installation photovoltaïque

Country Status (2)

Country Link
DE (1) DE202008010312U1 (fr)
WO (1) WO2010012629A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8742828B2 (en) 2009-03-25 2014-06-03 Ellenberger & Poensgen Gmbh Disconnector switch for galvanic direct current interruption

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009061044B4 (de) * 2009-01-16 2012-05-03 Phoenix Contact Gmbh & Co. Kg Photovoltaik-Anlage mit Modulüberwachung
DE102011015449B4 (de) 2011-01-25 2014-09-25 Ellenberger & Poensgen Gmbh Schalteinheit zum Schalten von hohen Gleichspannungen
US20150249426A1 (en) * 2014-02-28 2015-09-03 David Okawa Photovoltaic module junction box
HUE045658T2 (hu) 2014-10-24 2020-01-28 Ellenberger & Poensgen Megszakító kapcsoló egyenáram galvanikus megszakítására
DE102015212802A1 (de) 2015-07-08 2017-01-12 Ellenberger & Poensgen Gmbh Trennvorrichtung zur Gleichstromunterbrechung
DE102017204044A1 (de) * 2017-02-14 2018-08-16 Ellenberger & Poensgen Gmbh Verfahren und Spannungsvervielfacher zur Wandlung einer Eingangsspannung sowie Trennschaltung
DE102017203283A1 (de) 2017-03-01 2018-09-06 Robert Bosch Gmbh Heizeinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030111103A1 (en) * 2001-10-25 2003-06-19 Bower Ward Issac Alternating current photovoltaic building block
US20040264225A1 (en) * 2003-05-02 2004-12-30 Ballard Power Systems Corporation Method and apparatus for determining a maximum power point of photovoltaic cells
WO2006078685A2 (fr) * 2005-01-18 2006-07-27 Presher Gordon E Jr Systeme et procede de surveillance de systemes generateurs de puissance photovoltaique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030111103A1 (en) * 2001-10-25 2003-06-19 Bower Ward Issac Alternating current photovoltaic building block
US20040264225A1 (en) * 2003-05-02 2004-12-30 Ballard Power Systems Corporation Method and apparatus for determining a maximum power point of photovoltaic cells
WO2006078685A2 (fr) * 2005-01-18 2006-07-27 Presher Gordon E Jr Systeme et procede de surveillance de systemes generateurs de puissance photovoltaique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8742828B2 (en) 2009-03-25 2014-06-03 Ellenberger & Poensgen Gmbh Disconnector switch for galvanic direct current interruption

Also Published As

Publication number Publication date
DE202008010312U1 (de) 2008-10-02
WO2010012629A3 (fr) 2010-06-10

Similar Documents

Publication Publication Date Title
WO2010012629A2 (fr) Installation photovoltaïque et boîte de jonction à un générateur dans une installation photovoltaïque
EP2276137B1 (fr) Installation photovoltaïque
EP2863553B1 (fr) Dispositif de couplage pour coupler un dispositif de courant porteur en ligne et un dispositif de mesure à un réseau d'alimentation, et un noeud de mesure
EP2283371B1 (fr) Dispositif de mesure de la puissance
DE60131370T2 (de) Prüfverbindung für teilentladungsdetektionen, teilentladungsdetektor- und verfahren zur erfassung von teilentladungen an einem stromkabel
DE212013000286U1 (de) Messsystem
EP0297079B1 (fr) Dispositif de contrôle et de surveillance d'un système de distribution d'énergie électrique
DE102014220421A1 (de) Messknoten, System und Verfahren zur Überwachung des Zustands eines Energieversorgungsnetzwerks
DE19738140A1 (de) Meßanordnung zur Leistungs- und/oder Leistungsfaktormessung an mindestens einer Meßstelle in einem Wechselspannungsnetz
EP2975707A1 (fr) Dispositif de montage, système et procédé de réglage de réseaux de tension
EP2960664B1 (fr) Système d'enregistrement de puissances et de quantités d'énergie dans des conducteurs
DE60307639T2 (de) Verfahren und system zur übermittlung eines informationssignals über ein stromleitungskabel
DE2344921A1 (de) Anlage zur ueberwachung und regelung eines elektrischen energieversorgungsnetzes
EP2745331B1 (fr) Boîtier répartiteur de mesure destiné à déterminer le courant de branche dans des installations photovoltaïques
DE102017011373A1 (de) Mess- und Steuerelektronik für Niederspannungsschaltanlagen
EP2555003B1 (fr) Transducteur de courant et sectionneur de charge étant équipé avec celui-ci
EP3741027B1 (fr) Équipement à haute ou moyenne tension
EP3111516A1 (fr) Dispositif de distribution de courant dans un système basse tension
EP3521843A1 (fr) Système de surveillance des stations de transformateur
EP2414851A1 (fr) Dispositif de diagnostic d'objets mesurés à l'aide d'une tension de mesure
EP2870487B1 (fr) Détection d'une direction de défaut dans des réseaux d'alimentation en énergie moyenne tension
EP2186178B1 (fr) Appareil de protection destiné a la protection d'une installation électrotechnique, et procédé permettant de le faire fonctionner
DE69003318T2 (de) Apparat zur Kontrolle der Dichte eines Netzes aus Kabeln mit metallischem Überzug.
DE202014011102U1 (de) Elektrische Schaltvorrichtung mit einem eingebauten Verbindungssystem zum Verbinden einer Messungseinrichtung und Einspeisen und Erfassen von niederfrequenten und hochfrequenten Signalen
DE202010016873U1 (de) Schaltungsanordnung für eine Fotovoltaikanlage sowie eine Anschlussvorrichtung und ein Kabel hierfür

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09780883

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09780883

Country of ref document: EP

Kind code of ref document: A2