DE102006023563A1 - Photovoltaic system for transforming of solar power into electricity, has strings with solar modules attached with transducers, where one of transducers is charged with output voltage of series connection of strings by using switching units - Google Patents
Photovoltaic system for transforming of solar power into electricity, has strings with solar modules attached with transducers, where one of transducers is charged with output voltage of series connection of strings by using switching units Download PDFInfo
- Publication number
- DE102006023563A1 DE102006023563A1 DE102006023563A DE102006023563A DE102006023563A1 DE 102006023563 A1 DE102006023563 A1 DE 102006023563A1 DE 102006023563 A DE102006023563 A DE 102006023563A DE 102006023563 A DE102006023563 A DE 102006023563A DE 102006023563 A1 DE102006023563 A1 DE 102006023563A1
- Authority
- DE
- Germany
- Prior art keywords
- photovoltaic system
- strings
- converter
- dcw1
- switching elements
- 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.)
- Granted
Links
- 230000005611 electricity Effects 0.000 title 1
- 230000001131 transforming effect Effects 0.000 title 1
- 101150034889 DCW1 gene Proteins 0.000 claims description 22
- 230000005669 field effect Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000011156 evaluation Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Photovoltaik-Anlage mit mehreren jeweils mehrere Solarzellmodule umfassenden Strings, denen jeweils ein DC/DC-Wandler zugeordnet ist, wobei die DC/DC-Wandler ausgangsseitig an eine gemeinsame Wechselrichterbrücke angeschlossen sind.The The present invention relates to a photovoltaic system with several in each case several solar cell modules comprising strings, which each a DC / DC converter is assigned, wherein the DC / DC converter on the output side are connected to a common inverter bridge.
Photovoltaik-Anlagen dienen zur Umwandlung von Sonnenenergie in elektrische Energie, die beispielsweise zur autonomen Versorgung eines Hauses oder zur Einspeisung in ein öffentliches Stromnetz vorgesehen sein kann. Als Ausgangsspannung einer Photovoltaik-Anlage ist daher zumeist eine Wechselspannung in Höhe der üblichen Netzspannung und mit der üblichen Netzfrequenz erwünscht.Photovoltaic systems serve to convert solar energy into electrical energy, for example, for the autonomous supply of a house or to Feed into a public power grid can be provided. As output voltage of a photovoltaic system is therefore usually an AC voltage in the amount of the usual mains voltage and with the usual Mains frequency desired.
Die Solarzellenmodule zum Betrieb einer Photovoltaik-Anlage sind üblicherweise miteinander in Reihe zu mehreren sogenannten Strings verschaltet. Diese Strings liefern jeweils eine Gleichspannung, die durch Gleichspannungs-/Gleichspannungswandler, im folgenden kurz als DC/DC-Wandler bezeichnet, in ihrer Spannungshöhe angepaßt und durch einen Wechselrichter in eine Wechselspannung umgesetzt wird.The Solar cell modules for operating a photovoltaic system are common interconnected in series with several so-called strings. Each of these strings supplies a DC voltage which is supplied by DC / DC converters, in the following briefly as a DC / DC converter referred to, in their voltage level adapted and is converted by an inverter into an AC voltage.
In
der deutschen Offenlegungsschrift
Vorteilhaft daran ist, daß jeder String einzeln geregelt werden kann. Dagegen ist nachteilig, daß die Spannungen an den einzelnen Eingängen der DC/DC-Wandler je nach Beschaltung oft zu gering sind und teilweise stark hochgesetzt werden müssen. Ein solcher Betrieb ist für den Wirkungsgrad ungünstig.Advantageous It is because everyone String can be regulated individually. In contrast, it is disadvantageous that the voltages at the individual entrances the DC / DC converter Depending on the wiring, they are often too low and sometimes high Need to become. One such operation is for the efficiency unfavorable.
Problematisch ist zudem, daß die von den Strings erzeugte Spannung von der Sonneneinstrahlung und Umgebungstemperatur abhängen und daher zeitlich nicht konstant ist. Darüber hinaus können sich zu einem gegebenen Zeitpunkt die elektrischen Ausgangsgrößen von Strings auch aufgrund unterschiedlicher Anordnung, beispielsweise an verschiedenen Seiten eines Hauses, voneinander unterscheiden.Problematic is also that the voltage generated by the strings from solar radiation and Depend on ambient temperature and therefore not constant over time. In addition, can themselves at a given time the electrical outputs of Strings also due to different arrangement, for example on different sides of a house, different from each other.
Wünschenswert wäre daher eine Photovoltaikanlage, die die variierenden Spannungs- und Leistungsabgaben der Strings automatisch berücksichtigt. Zu vielen Zeitpunkten könnte man die einzelnen Strings in Reihe schalten, da die angeschalteten Strings häufig etwa gleichgroße Ströme liefern. Bei stark unterschiedlichen Strömen sollte auf eine Reihenschaltung verzichtet werden. Ein weiterer Grund, auf die Reihenschaltung zu verzichten, sind sehr hohe Spannungen im Leerlauf, die einen Wechselrichter zerstören können.Desirable would be therefore a photovoltaic system that provides varying voltage and power outputs the strings are automatically taken into account. At many times could you put the individual strings in series, because the strings are switched on often about the same size streams deliver. For very different currents should be connected in series be waived. Another reason to go to the series connection dispense with very high voltages at idle, which is an inverter to destroy can.
Es stellt sich daher die Aufgabe, eine Schaltung zu entwickeln, die sich flexibel und automatisch an die anliegenden Stringspannungen anpaßt und einen besonders günstigen Betrieb einer Photovoltaik-Anlage ermöglicht.It Therefore, the task is to develop a circuit that flexible and automatic to the applied string voltages adapts and a particularly favorable one Operation of a photovoltaic system allows.
Die Aufgabe wird dadurch gelöst, daß über Schaltelemente beeinflußt, zumindest ein DC/DC-Wandler eingangsseitig mit der Summenausgangsspannung einer Reihenschaltung des ihm zugeordneten Strings sowie zumindest eines weiteren Strings beaufschlagbar ist.The Task is solved by that over switching elements affected at least one DC / DC converter on the input side with the sum output voltage a series circuit of its associated string and at least another string can be acted upon.
Im Detail besteht die Lösung darin, daß einerseits zwischen den verschiedenen DC/DC-Wandlern Schaltelemente zur Kopplung angeordnet sind, andererseits in die DC/DC-Wandler Schaltelemente eingebaut sind, die es ermöglichen, den einzelne DC/DC-Wandler mit der Masse vom Zwischenkreis des Wechselrichters zu trennen.in the Detail is the solution in that on the one hand between the various DC / DC converters switching elements for coupling are arranged, on the other hand built into the DC / DC converter switching elements are that make it possible the single DC / DC converter with the ground of the DC link of the inverter to separate.
Eine solche Schaltung kann den Wirkungsgrad einer Photovoltaik-Anlage unter vielen Betriebsbedingungen deutlich erhöhen und die Verlustleistung verringern. Vorteilhafterweise ist es damit auch möglich, die Kühlkörper der Wechselrichter und damit die zur Photovoltaik-Anlage gehörende Wandleranlage erheblich kleiner zu dimensionieren und so erhebliche Kosten einzusparen.A Such a circuit can increase the efficiency of a photovoltaic system significantly increase under many operating conditions and the power loss reduce. Advantageously, it is thus possible, the Heat sink of Inverter and thus the transformer system belonging to the photovoltaic system To dimension considerably smaller and thus to save considerable costs.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen einer erfindungsgemäßen Photovoltaik-Anlage sind in den abhängigen Ansprüchen aufgeführt.Further advantageous embodiments and further developments of a photovoltaic system according to the invention are in the dependent claims listed.
Im folgenden wird die Erfindung anhand einiger schematischer Schaltbilder dargestellt und näher erläutert.in the The following is the invention with reference to some schematic diagrams illustrated and explained in more detail.
Es zeigenIt demonstrate
Das
Schaltungsprinzip einer erfindungsgemäßen Photovoltaik-Anlage zeigt
die
Die DC/DC-Wandler (DCW1, DCW2, DCW3) sind eingangsseitig jeweils mit einem, aus mehreren in Reihe geschalteten Photovoltaikelementen bestehenden String (ST1, ST2, ST3) verbunden. Die einzelnen DC/DC-Wandler (DCW1, DCW2, DCW3) sind hier als einfache Aufwärts-Schaltwandler ausgeführt, die nach einen bekannten Funktionsprinzip arbeiten. Durch eine getaktete Ansteuerung eines Leistungsschalters (LS1, LS2, LS2) liegt die Eingangsspannung des Schaltwandlers periodisch an einer Speicherdrossel (L1, L2, L3) an. Die in den Einschaltphasen des Leistungsschalters (LS1, LS2, LS2) in der Speicherdrossel (L1, L2, L3) gespeicherte elektrische Energie wird in den Sperrphasen des Leistungsschalters (LS1, LS2, LS2) über eine Diode (D1, D2, D3) auf einen Ausgangskondensator (C) übertragen. Die Ausgangsspannung des Schaltwandlers steigt dabei in Abhängigkeit vom Tastverhältnis bei der Ansteuerung des Leistungsschalters (LS1, LS2, LS2) auf einen Wert an, der höher als der Wert der Eingangsspannung ist.The DC / DC converters (DCW1, DCW2, DCW3) are on the input side each with one of several series-connected photovoltaic elements existing string (ST1, ST2, ST3) connected. The individual DC / DC converters (DCW1, DCW2, DC DCW3) are designed here as simple up-switching converter, which according to a known Working principle. By a clocked activation of a Circuit breaker (LS1, LS2, LS2) is the input voltage of the Switching converter periodically at a storage choke (L1, L2, L3) at. In the switch-on phases of the circuit breaker (LS1, LS2, LS2) stored in the storage inductor (L1, L2, L3) electrical Energy is generated in the blocking phases of the circuit breaker (LS1, LS2, LS2) over a diode (D1, D2, D3) transferred to an output capacitor (C). The Output voltage of the switching converter increases depending on from the duty cycle when controlling the circuit breaker (LS1, LS2, LS2) to one Value, the higher than the value of the input voltage.
Die Ansteuerung der Leistungsschalter (LS1, LS2, LS2) erfolgt durch eine hier nicht dargestellte Steuereinrichtung, die in Abhängigkeit von elektrischen Größen, und zwar insbesondere den an den DC/DC-Wandlern (DCW1, DCW2, DCW3) anliegenden Eingangsspannungen, die Leistungsschalter steuert. Die Steuereinrichtung dient darüber hinaus zur Erfassung der Eingangsströme der DC/DC-Wandler (DCW1, DCW2, DCW3), sowie zur Ansteuerung der nachfolgend beschriebenen Schaltelemente. Besonders einfach und vorteilhaft kann eine solche Steuereinrichtung durch eine einen Microcontroller beinhaltende Schaltungsanordnung ausgeführt sein.The Control of the circuit breaker (LS1, LS2, LS2) is carried out by a control device not shown here, depending on of electrical quantities, and Although in particular the voltage applied to the DC / DC converters (DCW1, DCW2, DCW3) Input voltages, which controls circuit breakers. The control device serves over it in addition to detecting the input currents of the DC / DC converters (DCW1, DCW2, DCW3), as well as to control the following Switching elements. Particularly simple and advantageous, such Control device by a microcontroller-containing Circuit arrangement executed be.
Die
erwähnten
Schaltelemente (S11, S12, S21, S22), die durch die Steuereinrichtung
betätigt werden
können,
sind in der
Es sei zunächst angenommen, die Schaltelemente S11 und S21 seien geschlossen und die Schaltelemente S12 und S22 seien geöffnet. In diesem Fall arbeiten die drei DC/DC-Wandler (DCW1, DCW2, DCW3) unabhängig voneinander, wobei deren Ausgangsspannungen parallel an den Zwischenkreisleitungen (ZK+, ZK–) anliegen. Diese Betriebsart ist besonders vorteilhaft, wenn alle drei Strings (ST1, ST2, ST3) Spannungswerte liefern, die sich mit einem guten Wirkungsgrad durch die DC/DC-Wandler (DCW1, DCW2, DCW3) bis auf den Wert der Zwischenkreisspannung (UZK) erhöhen lassen.It be first assume that the switching elements S11 and S21 are closed and the switching elements S12 and S22 are open. In this case work the three DC / DC converters (DCW1, DCW2, DCW3) independently of each other, with their Output voltages parallel to the DC link lines (ZK +, ZK-) abut. This mode is especially advantageous if all three strings (ST1, ST2, ST3) provide voltage values that are consistent with a good Efficiency through the DC / DC converters (DCW1, DCW2, DCW3) up to increase the value of the DC link voltage (UZK).
Ist dies nicht der Fall, so ist es vorteilhafter, einen Betrieb mit mindestens zwei in Reihe geschalteten Strings (ST1, ST2, ST3) vorzusehen. Angenommen der erste und der zweite String (ST1, ST2) liefert jeweils eine Spannung, die sich nicht mit einem guten Wirkungsgrad in die Zwischenkreisspannung (UZK) wandeln läßt, während die Summe der beiden Spannungen einen diesbezüglich ausreichenden Wert ergäbe. In diesem Fall ist es günstig, die beiden String (ST1, ST2) zueinander in Reihe zu schalten und mit deren Ausgangsspannung eingangsseitig einen der DC/DC-Wandler (DCW1) zu beaufschlagen.is this is not the case, so it is more advantageous to operate with at least two series-connected strings (ST1, ST2, ST3) provide. Suppose the first and the second string (ST1, ST2) returns respectively a tension that does not interfere with good efficiency in the DC link voltage (UCC) while the sum of the two voltages one in this regard would give sufficient value. In this case, it is convenient to connect the two strings (ST1, ST2) to each other in series and with its output voltage on the input side of the DC / DC converter (DCW1).
Dies wird dadurch erreicht, daß die Steuereinrichtung das Schaltelement S11 öffnet und das Schaltelement S12 schließt. Dadurch sind die an den DC/DC-Wandlern DCW1 und DCW2 anliegenden Strings ST1 und ST2 in Reihe geschaltet, wobei deren positives Potential über die Plusleitung des DC/DC-Wandlers DCW1, also die Speicherdrossel L1 und die Diode D1 an die Plusleitung (ZK+) des Zwischenkreises geführt ist, während der DC/DC-Wandler DCW2 über den geschlossenen Schalter S21 das gemeinsame Massepotential an die Masseleitung (ZK–) des Zwischenkreises führt.This is achieved by the Control device, the switching element S11 opens and the switching element S12 closes. As a result, those on the DC / DC converters DCW1 and DCW2 adjacent strings ST1 and ST2 connected in series, whose positive potential is over the positive line of the DC / DC converter DCW1, ie the storage inductor L1 and the diode D1 to the positive line (ZK +) of the DC link out is while the DC / DC converter DCW2 over the closed switch S21 to the common ground potential the ground line (ZK-) of the DC link leads.
Da der Leistungsschalter LS1 des DC/DC-Wandlers DCW1 ebenfalls mit der Masseleitung (ZK–) des Zwischenkreises verbunden ist, taktet dieser nun die volle anliegende Summenspannung der Strings ST1 und ST2. Die Plusleitung des zweiten DC/DC-Wandlers (DCW2) ist hierbei durch die Diode D2 entkoppelt.There the circuit breaker LS1 of the DC / DC converter DCW1 also with the ground line (ZK-) the DC link is connected, this now clocks the full-fitting Total voltage of strings ST1 and ST2. The plus line of the second DC / DC converter (DCW2) is decoupled by the diode D2.
Diese Betriebsart ist vorteilhaft, wenn die an den DC/DC-Wandlern anliegende Stringspannungen gering sind und daher nur mit einen relativ schlechten Wirkungsgrad in die Zwischenkreisspannung (UZK) gewandelt werden können. Durch diese Schaltung müssen die Spannungen der einzelnen Strings weniger hoch gesetzt werden als ohne Reihenschaltung. Der Wechselrichter arbeitet mit deutlich besserem Wirkungsgrad, erzeugt weniger Wärme, regelt daher weniger häufig ab, und kann so wirtschaftlicher arbeiten.These Operating mode is advantageous if the voltage applied to the DC / DC converters String voltages are low and therefore only with a relatively poor efficiency can be converted into the DC link voltage (UZK). By need this circuit the tensions of the individual strings are set lower as without series connection. The inverter works well better efficiency, generates less heat, therefore regulates less frequently, and can work more economically.
Entsprechend können auch die Strings (ST2, ST3) der DC/DC-Wandler DCW2 und DCW3 zeitweise in Reihe geschaltet werden oder auch alle drei Strings (ST1, ST2, ST3) gemeinsam.Corresponding can also the strings (ST2, ST3) of the DC / DC converters DCW2 and DCW3 temporarily be connected in series or all three strings (ST1, ST2, ST3) in common.
Der Vorgang zum Umschalten kann so ausgeführt werden, daß der Wechselrichter jeweils mit den einzelnen DC/DC-Wandlern (DCW1, DCW2, DCW3) getrennt anläuft. Nachdem die Leerlaufspannung verlassen wurde und eine niedrigere Spannung an jedem DC/DC-Wandlern (DCW1, DCW2, DCW3) erreicht wurde, kann umgeschaltet werden. Bei Umschalten während des Betriebs ist darauf zu achten, daß zunächst der „untere", d. h. näher an Masse liegende DC/DC-Wandler nicht mehr getaktet wird und anschließend schnell umgeschaltet wird.The process for switching can be carried out so that the inverter with The individual DC / DC converters (DCW1, DCW2, DCW3) start separately. After the open circuit voltage has been released and a lower voltage has been reached on each DC / DC converter (DCW1, DCW2, DCW3), it is possible to switch over. When switching during operation, make sure that the "lower", ie closer to ground DC / DC converter is no longer clocked and then quickly switched.
Ein sinnvolles Kriterium für das Umschalten von Einzelbetrieb auf Reihenschaltung ist, daß etwa gleichgroße Ströme durch die zu schaltenden Strings (ST1, ST2, ST3) fließen und daß die Summe der einzelnen Spannungen kleiner ist als die maximal zulässige Spannung.One reasonable criterion for the switching from single operation to series connection is that approximately equal currents through the strings to be switched (ST1, ST2, ST3) flow and that the sum of the individual voltages is less than the maximum allowable Tension.
Besonders vorteilhaft ist, wenn für jeden String (ST1, ST2, ST3) die Betriebsdaten, wie Eingangsspannung, Ausgangsstrom bzw. Ausgangsleistung, einzeln abgetastet werden können, insbesondere auch bei Reihenschaltung der Strings. Dazu können die Stromwerte direkt, die Spannungswerte durch einfache Subtraktion der einzelnen Spannungswerte ermittelt werden. Außerdem ist es dadurch möglich, den optimalen Arbeitspunkt jedes String auch in einer Reihenschaltung einzeln zu überwachen. Somit kann bei Reihenschaltung auf einfache Weise präzise erkannt werden, ob Einzelbetrieb sinnvoller und wirtschaftlicher ist. Bei Bedarf kann also schnell reagiert werden. Solche Situationen treten in der Regel bei einer Teilverschattung der Photovoltaik-Strings auf.Especially is advantageous if for each string (ST1, ST2, ST3) the operating data, such as input voltage, Output current or output power, can be sampled individually, in particular also with series connection of the strings. For this, the current values can be directly, the voltage values by simple subtraction of the individual voltage values be determined. Furthermore is it possible the optimal operating point of each string also in a series connection to monitor individually. Thus, when connected in series easily detected in a simple manner be whether individual operation makes more sense and is more economical. at Demand can therefore be reacted quickly. Such situations occur usually with partial shading of the photovoltaic strings on.
Kriterium für das Aufheben der Reihenschaltung ist also, daß bei Einzelbetrieb je String mehr Energie erwirtschaftet werden kann. Dieses kann z. B. durch geeignete Algorithmen ermittelt werden. Die hier beschriebene Schaltung kann damit die Wirtschaftlichkeit von Photovoltaik-Anlagen deutlich erhöhen.criteria for the Canceling the series circuit is so that in single operation per string more energy can be generated. This can be z. B. by suitable algorithms are determined. The circuit described here This makes the cost-effectiveness of photovoltaic systems clear increase.
Die
in der
Mögliche vorteilhafte
Ausgestaltungen der Schaltelemente sind in der
Eine
besonders einfache Möglichkeit
zur Realisierung der Schaltelemente zeigt die
Mit
einem Schaltelement S2, welches einen zusätzlichen Umschaltkontakt aufweist
(
Eine
besonders vorteilhafte Ausführung
besteht darin, die Schaltelemente (S1, S2) als Feldeffekttransistoren
auszuführen
(
Eine
ausschließliche
Verwendung von Relaiskontakten als Schaltelemente (S1, S2) sei ebenfalls
erwähnt
(
Zur Ausbildung der Schaltelemente kann auch eine Kombination eines Feldeffekttransistors und eines Relais vorgesehen werden, wobei der Feldeffekttransistor lediglich eine hohe Spannungsfestigkeit besitzen muß und den Strom nur für eine sehr kurze Zeit, typischerweise einige Millisekunden, führt. Umgekehrt muß das Relais nicht für hohe Schaltspannungen ausgelegt werden, sondern lediglich für die entsprechenden Ströme, da der Schaltvorgang selbst durch den Feldeffekttransistor oder durch eine Diode bewirkt wird. Damit wird zusätzlich das kostenintensive Schalten von Gleichspannungen über Relais stark vereinfacht.to Formation of the switching elements may also be a combination of a field effect transistor and a relay can be provided, wherein the field effect transistor only must have a high dielectric strength and the current only for a very short time, typically a few milliseconds. Vice versa that must be Relay not for high switching voltages are designed, but only for the corresponding currents since the switching process itself by the field effect transistor or is effected by a diode. This is additionally the costly Switching DC voltages over Relay greatly simplified.
Zum Umschalten ist es besonders vorteilhaft, wenn der Leistungsschalter des unteren DC/DC-Wandlers zunächst so getaktet wird, daß die Spannung des Strings gegen Null läuft. In diesem Fall sind die Schalter während des Schaltvorganges nur geringen Spannungen ausgesetzt.To the Switching it is particularly advantageous when the circuit breaker of the lower DC / DC converter first is clocked so that the voltage of the string approaches zero. In this case, the switches are only during the switching process exposed to low voltages.
- CC
- Ausgangskondensatoroutput capacitor
- D1, D2, D3D1, D2, D3
- Diodendiodes
- L1, L2, L3L1, L2, L3
- Speicherdrosselnchokes
- ST1, ST2, ST3ST1, ST2, ST3
- Stringsstrings
- DCW1, DCW2, DCW3DCW1, DCW2, DCW3
- DC/DC-WandlerDC / DC converter
- LS1, LS2, LS3LS1, LS2, LS3
- Leistungsschalterbreakers
- WRWR
- WechselrichterbrückeInverter bridge
- S1, S11, S21S1, S11, S21
- (erste) Schaltelemente(first) switching elements
- S2, S12, S22S2, S12, S22
- (zweite) Schaltelemente(second) switching elements
- UZKUDC
- ZwischenkreisspannungIntermediate circuit voltage
- ZK–ZK
- Zwischenkreisleitung (Masse)DC link line (ground)
- ZK+ZK +
- Zwischenkreisleitung (Plus)DC link (plus)
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023563.0A DE102006023563B4 (en) | 2006-05-19 | 2006-05-19 | Photovoltaic system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023563.0A DE102006023563B4 (en) | 2006-05-19 | 2006-05-19 | Photovoltaic system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006023563A1 true DE102006023563A1 (en) | 2007-11-22 |
DE102006023563B4 DE102006023563B4 (en) | 2020-09-10 |
Family
ID=38608005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006023563.0A Active DE102006023563B4 (en) | 2006-05-19 | 2006-05-19 | Photovoltaic system |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006023563B4 (en) |
Cited By (69)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007032605A1 (en) * | 2007-07-11 | 2009-02-05 | Robert Maier | Fotovoltaikanlage |
DE102008004675B3 (en) * | 2007-10-12 | 2009-03-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controllable switching device for solar module, has control provided to control controllable switching unit to switch switching unit in one of switch conditions using output of solar module or input at output terminal |
WO2010003941A2 (en) * | 2008-07-11 | 2010-01-14 | Siemens Aktiengesellschaft | Network connection of solar cells |
WO2010034413A1 (en) * | 2008-09-25 | 2010-04-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Separating circuit for inverters |
DE102009025363A1 (en) * | 2009-06-18 | 2011-02-03 | Adensis Gmbh | Starting source inverter |
EP2317623A1 (en) * | 2009-10-30 | 2011-05-04 | General Electric Company | Hybrid wind-solar inverters |
DE102010017747A1 (en) * | 2010-05-03 | 2011-11-03 | Sma Solar Technology Ag | Method for limiting the generator voltage of a photovoltaic system in case of danger and photovoltaic system |
DE102010026778A1 (en) * | 2010-07-09 | 2012-01-12 | Refu Elektronik Gmbh | Device for providing a DC input voltage for a Photovol taikkehrichter and photovoltaic system with this |
WO2012024538A2 (en) | 2010-08-18 | 2012-02-23 | Volterra Semiconductor Corporation | Switching circuits for extracting power from an electric power source and associated methods |
DE202011002935U1 (en) * | 2011-02-18 | 2012-05-21 | Steca Elektronik Gmbh | circuitry |
DE102011011973A1 (en) * | 2011-02-22 | 2012-08-23 | Michael Klemt | Circuit arrangement for increasing solar generator voltage of direct current (DC)-DC converter , has inductance capacitance filter for smoothing transformer alternating voltage rectified by rectifier |
EP2276137A3 (en) * | 2009-07-09 | 2014-03-05 | Kostal Industrie Elektrik GmbH | Photovoltaic device |
CN104092437A (en) * | 2014-05-22 | 2014-10-08 | 中国科学院广州能源研究所 | Photovoltaic module adjusting circuit and remote monitoring system |
WO2015007872A1 (en) * | 2013-07-19 | 2015-01-22 | Sma Solar Technology Ag | Inverter comprising at least two direct current inputs, a photovoltaic installation comprising such an inverter, and a method for actuating an inverter |
US9088178B2 (en) | 2006-12-06 | 2015-07-21 | Solaredge Technologies Ltd | Distributed power harvesting systems using DC power sources |
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 |
CN110048671A (en) * | 2014-03-03 | 2019-07-23 | 太阳能技术有限公司 | For applying the method and system of electric field to multiple solar panels |
US10396662B2 (en) | 2011-09-12 | 2019-08-27 | Solaredge Technologies Ltd | Direct current link circuit |
DE102018127132A1 (en) * | 2018-10-30 | 2020-04-30 | Sma Solar Technology Ag | Inverter with at least two DC / DC converters and use of such an inverter in a photovoltaic system |
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 |
CN111869086A (en) * | 2018-12-29 | 2020-10-30 | 华为技术有限公司 | Inverter |
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 |
CN113258773A (en) * | 2021-05-18 | 2021-08-13 | 阳光电源股份有限公司 | Power conversion system, power conversion device and control method thereof |
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 |
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 |
US11735910B2 (en) | 2006-12-06 | 2023-08-22 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US11855231B2 (en) | 2006-12-06 | 2023-12-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11881814B2 (en) | 2005-12-05 | 2024-01-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US11888387B2 (en) | 2006-12-06 | 2024-01-30 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
WO2024026590A1 (en) * | 2022-07-30 | 2024-02-08 | 华为数字能源技术有限公司 | Power conversion device, control method, and power supply system |
US12057807B2 (en) | 2016-04-05 | 2024-08-06 | Solaredge Technologies Ltd. | Chain of power devices |
US12119758B2 (en) | 2023-07-12 | 2024-10-15 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19919766A1 (en) * | 1999-04-29 | 2000-11-02 | Sma Regelsysteme Gmbh | Inverter for a photovoltaic unit for use in a solar generator to maximize the power/performance output, the so-called maximum power point tracking |
DE10136147B4 (en) * | 2001-07-25 | 2004-11-04 | Kolm, Hendrik, Dipl.-Ing. | Photovoltaic alternator |
-
2006
- 2006-05-19 DE DE102006023563.0A patent/DE102006023563B4/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19919766A1 (en) * | 1999-04-29 | 2000-11-02 | Sma Regelsysteme Gmbh | Inverter for a photovoltaic unit for use in a solar generator to maximize the power/performance output, the so-called maximum power point tracking |
DE10136147B4 (en) * | 2001-07-25 | 2004-11-04 | Kolm, Hendrik, Dipl.-Ing. | Photovoltaic alternator |
Cited By (177)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11881814B2 (en) | 2005-12-05 | 2024-01-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US12027970B2 (en) | 2006-12-06 | 2024-07-02 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US11002774B2 (en) | 2006-12-06 | 2021-05-11 | Solaredge Technologies Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
US11579235B2 (en) | 2006-12-06 | 2023-02-14 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US11728768B2 (en) | 2006-12-06 | 2023-08-15 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
US11031861B2 (en) | 2006-12-06 | 2021-06-08 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
US11063440B2 (en) | 2006-12-06 | 2021-07-13 | Solaredge Technologies Ltd. | Method for distributed power harvesting using DC power sources |
US11687112B2 (en) | 2006-12-06 | 2023-06-27 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11073543B2 (en) | 2006-12-06 | 2021-07-27 | Solaredge Technologies Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
US11594882B2 (en) | 2006-12-06 | 2023-02-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11183922B2 (en) | 2006-12-06 | 2021-11-23 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9948233B2 (en) | 2006-12-06 | 2018-04-17 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US12107417B2 (en) | 2006-12-06 | 2024-10-01 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11594881B2 (en) | 2006-12-06 | 2023-02-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US10230245B2 (en) | 2006-12-06 | 2019-03-12 | Solaredge Technologies Ltd | Battery power delivery module |
US12068599B2 (en) | 2006-12-06 | 2024-08-20 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
US11594880B2 (en) | 2006-12-06 | 2023-02-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
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 |
US11575260B2 (en) | 2006-12-06 | 2023-02-07 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11598652B2 (en) | 2006-12-06 | 2023-03-07 | Solaredge Technologies Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
US12046940B2 (en) | 2006-12-06 | 2024-07-23 | Solaredge Technologies Ltd. | Battery power control |
US12032080B2 (en) | 2006-12-06 | 2024-07-09 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US11476799B2 (en) | 2006-12-06 | 2022-10-18 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US10673253B2 (en) | 2006-12-06 | 2020-06-02 | Solaredge Technologies Ltd. | Battery power delivery module |
US11569659B2 (en) | 2006-12-06 | 2023-01-31 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11735910B2 (en) | 2006-12-06 | 2023-08-22 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US12027849B2 (en) | 2006-12-06 | 2024-07-02 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US9130401B2 (en) | 2006-12-06 | 2015-09-08 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9112379B2 (en) | 2006-12-06 | 2015-08-18 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
US10447150B2 (en) | 2006-12-06 | 2019-10-15 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9088178B2 (en) | 2006-12-06 | 2015-07-21 | 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 |
US11962243B2 (en) | 2006-12-06 | 2024-04-16 | Solaredge Technologies Ltd. | Method for distributed power harvesting using DC power sources |
US10097007B2 (en) | 2006-12-06 | 2018-10-09 | Solaredge Technologies Ltd. | Method for distributed power harvesting using DC power sources |
US9368964B2 (en) | 2006-12-06 | 2016-06-14 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US11961922B2 (en) | 2006-12-06 | 2024-04-16 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11658482B2 (en) | 2006-12-06 | 2023-05-23 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US11682918B2 (en) | 2006-12-06 | 2023-06-20 | Solaredge Technologies Ltd. | Battery power delivery module |
US9543889B2 (en) | 2006-12-06 | 2017-01-10 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9966766B2 (en) | 2006-12-06 | 2018-05-08 | Solaredge Technologies Ltd. | Battery power delivery module |
US9960667B2 (en) | 2006-12-06 | 2018-05-01 | Solaredge Technologies Ltd. | System and method for protection during inverter shutdown in distributed power installations |
US9590526B2 (en) | 2006-12-06 | 2017-03-07 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US11888387B2 (en) | 2006-12-06 | 2024-01-30 | Solaredge Technologies Ltd. | Safety mechanisms, wake up and shutdown methods in distributed power installations |
US11855231B2 (en) | 2006-12-06 | 2023-12-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9644993B2 (en) | 2006-12-06 | 2017-05-09 | Solaredge Technologies Ltd. | Monitoring of distributed power harvesting systems using DC power sources |
US9853490B2 (en) | 2006-12-06 | 2017-12-26 | Solaredge Technologies Ltd. | Distributed power system using direct current power sources |
US9680304B2 (en) | 2006-12-06 | 2017-06-13 | Solaredge Technologies Ltd. | Method for distributed power harvesting using DC power sources |
US11575261B2 (en) | 2006-12-06 | 2023-02-07 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US10637393B2 (en) | 2006-12-06 | 2020-04-28 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US9960731B2 (en) | 2006-12-06 | 2018-05-01 | Solaredge Technologies Ltd. | Pairing of components in a direct current distributed power generation system |
US11043820B2 (en) | 2006-12-06 | 2021-06-22 | Solaredge Technologies Ltd. | Battery power delivery module |
DE102007032605A1 (en) * | 2007-07-11 | 2009-02-05 | Robert Maier | Fotovoltaikanlage |
US9673711B2 (en) | 2007-08-06 | 2017-06-06 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
US10116217B2 (en) | 2007-08-06 | 2018-10-30 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
US10516336B2 (en) | 2007-08-06 | 2019-12-24 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
US11594968B2 (en) | 2007-08-06 | 2023-02-28 | Solaredge Technologies Ltd. | Digital average input current control in power converter |
DE102008004675B3 (en) * | 2007-10-12 | 2009-03-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controllable switching device for solar module, has control provided to control controllable switching unit to switch switching unit in one of switch conditions using output of solar module or input at output terminal |
US8178999B2 (en) | 2007-10-12 | 2012-05-15 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Controllable change-over apparatus for a solar module |
US9853538B2 (en) | 2007-12-04 | 2017-12-26 | Solaredge Technologies Ltd. | Distributed power harvesting systems using DC power sources |
US10693415B2 (en) | 2007-12-05 | 2020-06-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US11264947B2 (en) | 2007-12-05 | 2022-03-01 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US9831824B2 (en) | 2007-12-05 | 2017-11-28 | SolareEdge Technologies Ltd. | Current sensing on a MOSFET |
US10644589B2 (en) | 2007-12-05 | 2020-05-05 | Solaredge Technologies Ltd. | Parallel connected inverters |
US11894806B2 (en) | 2007-12-05 | 2024-02-06 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US9979280B2 (en) | 2007-12-05 | 2018-05-22 | Solaredge Technologies Ltd. | Parallel connected inverters |
US11183969B2 (en) | 2007-12-05 | 2021-11-23 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US9407161B2 (en) | 2007-12-05 | 2016-08-02 | Solaredge Technologies Ltd. | Parallel connected inverters |
US11183923B2 (en) | 2007-12-05 | 2021-11-23 | Solaredge Technologies Ltd. | Parallel connected inverters |
US9291696B2 (en) | 2007-12-05 | 2016-03-22 | Solaredge Technologies Ltd. | Photovoltaic system power tracking method |
US11693080B2 (en) | 2007-12-05 | 2023-07-04 | Solaredge Technologies Ltd. | Parallel connected inverters |
US12055647B2 (en) | 2007-12-05 | 2024-08-06 | Solaredge Technologies Ltd. | Parallel connected inverters |
US9876430B2 (en) | 2008-03-24 | 2018-01-23 | Solaredge Technologies Ltd. | Zero voltage switching |
US11424616B2 (en) | 2008-05-05 | 2022-08-23 | Solaredge Technologies Ltd. | Direct current power combiner |
US9362743B2 (en) | 2008-05-05 | 2016-06-07 | Solaredge Technologies Ltd. | Direct current power combiner |
US10468878B2 (en) | 2008-05-05 | 2019-11-05 | Solaredge Technologies Ltd. | Direct current power combiner |
WO2010003941A3 (en) * | 2008-07-11 | 2010-03-18 | Siemens Aktiengesellschaft | Network connection of solar cells |
WO2010003941A2 (en) * | 2008-07-11 | 2010-01-14 | Siemens Aktiengesellschaft | Network connection of solar cells |
WO2010034413A1 (en) * | 2008-09-25 | 2010-04-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Separating circuit for inverters |
US9537445B2 (en) | 2008-12-04 | 2017-01-03 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US10461687B2 (en) | 2008-12-04 | 2019-10-29 | Solaredge Technologies Ltd. | Testing of a photovoltaic panel |
US11867729B2 (en) | 2009-05-26 | 2024-01-09 | Solaredge Technologies Ltd. | Theft detection and prevention in a power generation system |
US9869701B2 (en) | 2009-05-26 | 2018-01-16 | Solaredge Technologies Ltd. | Theft detection and prevention in a power generation system |
US10969412B2 (en) | 2009-05-26 | 2021-04-06 | Solaredge Technologies Ltd. | Theft detection and prevention in a power generation system |
DE102009025363A1 (en) * | 2009-06-18 | 2011-02-03 | Adensis Gmbh | Starting source inverter |
DE102009025363B4 (en) * | 2009-06-18 | 2012-03-08 | Adensis Gmbh | Starting source inverter |
DE102009025363B9 (en) * | 2009-06-18 | 2012-06-21 | Adensis Gmbh | Starting source inverter |
EP2276137A3 (en) * | 2009-07-09 | 2014-03-05 | Kostal Industrie Elektrik GmbH | Photovoltaic device |
US8232681B2 (en) | 2009-10-30 | 2012-07-31 | General Electric Company | Hybrid wind-solar inverters |
EP2317623A1 (en) * | 2009-10-30 | 2011-05-04 | General Electric Company | Hybrid wind-solar inverters |
DE102010017747A1 (en) * | 2010-05-03 | 2011-11-03 | Sma Solar Technology Ag | Method for limiting the generator voltage of a photovoltaic system in case of danger and photovoltaic system |
US8837098B2 (en) | 2010-05-03 | 2014-09-16 | Sma Solar Technology Ag | Method for limiting the generator voltage of a photovoltaic installation in case of danger and photovoltaic installation |
DE102010026778A1 (en) * | 2010-07-09 | 2012-01-12 | Refu Elektronik Gmbh | Device for providing a DC input voltage for a Photovol taikkehrichter and photovoltaic system with this |
DE102010026778B4 (en) * | 2010-07-09 | 2015-02-26 | Refu Elektronik Gmbh | Device and method for providing a DC input voltage for a photovoltaic inverter and photovoltaic system with this device |
US9035626B2 (en) | 2010-08-18 | 2015-05-19 | Volterra Semiconductor Corporation | Switching circuits for extracting power from an electric power source and associated methods |
EP2606550A2 (en) * | 2010-08-18 | 2013-06-26 | Volterra Semiconductor Corporation | Switching circuits for extracting power from an electric power source and associated methods |
EP2606550A4 (en) * | 2010-08-18 | 2014-09-10 | Volterra Semiconductor Corp | Switching circuits for extracting power from an electric power source and associated methods |
WO2012024538A2 (en) | 2010-08-18 | 2012-02-23 | Volterra Semiconductor Corporation | Switching circuits for extracting power from an electric power source and associated methods |
US8946937B2 (en) | 2010-08-18 | 2015-02-03 | Volterra Semiconductor Corporation | Switching circuits for extracting power from an electric power source and associated methods |
US9312769B2 (en) | 2010-08-18 | 2016-04-12 | Volterra Semiconductor LLC | Switching circuits for extracting power from an electric power source and associated methods |
US9577426B2 (en) | 2010-08-18 | 2017-02-21 | Volterra Semiconductor LLC | Switching circuits for extracting power from an electric power source and associated methods |
US9698599B2 (en) | 2010-08-18 | 2017-07-04 | Volterra Semiconductor LLC | Switching circuits for extracting power from an electric power source and associated methods |
US9806523B2 (en) | 2010-08-18 | 2017-10-31 | Volterra Semiconductor LLC | Switching circuits for extracting power from an electric power source and associated methods |
US9647442B2 (en) | 2010-11-09 | 2017-05-09 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
US10931228B2 (en) | 2010-11-09 | 2021-02-23 | Solaredge Technologies Ftd. | Arc detection and prevention in a power generation system |
US11070051B2 (en) | 2010-11-09 | 2021-07-20 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
US11489330B2 (en) | 2010-11-09 | 2022-11-01 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
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 |
US11349432B2 (en) | 2010-11-09 | 2022-05-31 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
US12003215B2 (en) | 2010-11-09 | 2024-06-04 | Solaredge Technologies Ltd. | Arc detection and prevention in a power generation system |
US11271394B2 (en) | 2010-12-09 | 2022-03-08 | Solaredge Technologies Ltd. | Disconnection of a string carrying direct current power |
US11996488B2 (en) | 2010-12-09 | 2024-05-28 | Solaredge Technologies Ltd. | Disconnection of a string carrying direct current power |
US9935458B2 (en) | 2010-12-09 | 2018-04-03 | Solaredge Technologies Ltd. | Disconnection of a string carrying direct current power |
US9401599B2 (en) | 2010-12-09 | 2016-07-26 | Solaredge Technologies Ltd. | Disconnection of a string carrying direct current power |
US9866098B2 (en) | 2011-01-12 | 2018-01-09 | Solaredge Technologies Ltd. | Serially connected inverters |
US10666125B2 (en) | 2011-01-12 | 2020-05-26 | Solaredge Technologies Ltd. | Serially connected inverters |
US11205946B2 (en) | 2011-01-12 | 2021-12-21 | Solaredge Technologies Ltd. | Serially connected inverters |
DE202011002935U1 (en) * | 2011-02-18 | 2012-05-21 | Steca Elektronik Gmbh | circuitry |
DE102011011973B4 (en) * | 2011-02-22 | 2013-01-17 | Michael Klemt | Circuit arrangement for increasing a solar generator voltage and method for operating such a circuit arrangement |
DE102011011973A1 (en) * | 2011-02-22 | 2012-08-23 | Michael Klemt | Circuit arrangement for increasing solar generator voltage of direct current (DC)-DC converter , has inductance capacitance filter for smoothing transformer alternating voltage rectified by rectifier |
US10396662B2 (en) | 2011-09-12 | 2019-08-27 | Solaredge Technologies Ltd | Direct current link circuit |
US10931119B2 (en) | 2012-01-11 | 2021-02-23 | Solaredge Technologies Ltd. | Photovoltaic module |
US11979037B2 (en) | 2012-01-11 | 2024-05-07 | Solaredge Technologies Ltd. | Photovoltaic module |
US10992238B2 (en) | 2012-01-30 | 2021-04-27 | Solaredge Technologies Ltd. | Maximizing power in a photovoltaic distributed power system |
US10608553B2 (en) | 2012-01-30 | 2020-03-31 | Solaredge Technologies Ltd. | Maximizing power in a photovoltaic distributed power system |
US9812984B2 (en) | 2012-01-30 | 2017-11-07 | Solaredge Technologies Ltd. | Maximizing power in a photovoltaic distributed power system |
US11620885B2 (en) | 2012-01-30 | 2023-04-04 | Solaredge Technologies Ltd. | Photovoltaic panel circuitry |
US10381977B2 (en) | 2012-01-30 | 2019-08-13 | Solaredge Technologies Ltd | Photovoltaic panel circuitry |
US9853565B2 (en) | 2012-01-30 | 2017-12-26 | Solaredge Technologies Ltd. | Maximized power in a photovoltaic distributed power system |
US11929620B2 (en) | 2012-01-30 | 2024-03-12 | Solaredge Technologies Ltd. | Maximizing power in a photovoltaic distributed power system |
US12094306B2 (en) | 2012-01-30 | 2024-09-17 | Solaredge Technologies Ltd. | Photovoltaic panel circuitry |
US9923516B2 (en) | 2012-01-30 | 2018-03-20 | Solaredge Technologies Ltd. | Photovoltaic panel circuitry |
US11183968B2 (en) | 2012-01-30 | 2021-11-23 | Solaredge Technologies Ltd. | Photovoltaic panel circuitry |
US9235228B2 (en) | 2012-03-05 | 2016-01-12 | Solaredge Technologies Ltd. | Direct current link circuit |
US10007288B2 (en) | 2012-03-05 | 2018-06-26 | Solaredge Technologies Ltd. | Direct current link circuit |
US9639106B2 (en) | 2012-03-05 | 2017-05-02 | Solaredge Technologies Ltd. | Direct current link circuit |
US11177768B2 (en) | 2012-06-04 | 2021-11-16 | Solaredge Technologies Ltd. | Integrated photovoltaic panel circuitry |
US10115841B2 (en) | 2012-06-04 | 2018-10-30 | Solaredge Technologies Ltd. | Integrated photovoltaic panel circuitry |
US9548619B2 (en) | 2013-03-14 | 2017-01-17 | Solaredge Technologies Ltd. | Method and apparatus for storing and depleting energy |
US11545912B2 (en) | 2013-03-14 | 2023-01-03 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
US10778025B2 (en) | 2013-03-14 | 2020-09-15 | Solaredge Technologies Ltd. | Method and apparatus for storing and depleting energy |
US12003107B2 (en) | 2013-03-14 | 2024-06-04 | Solaredge Technologies Ltd. | Method and apparatus for storing and depleting energy |
US11742777B2 (en) | 2013-03-14 | 2023-08-29 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
US9941813B2 (en) | 2013-03-14 | 2018-04-10 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
US10651647B2 (en) | 2013-03-15 | 2020-05-12 | Solaredge Technologies Ltd. | Bypass mechanism |
US11424617B2 (en) | 2013-03-15 | 2022-08-23 | Solaredge Technologies Ltd. | Bypass mechanism |
US9819178B2 (en) | 2013-03-15 | 2017-11-14 | Solaredge Technologies Ltd. | Bypass mechanism |
US10033190B2 (en) | 2013-07-19 | 2018-07-24 | Sma Solar Technology Ag | Inverter with at least two DC inputs, photovoltaic system comprising such an inverter and method for controlling an inverter |
CN105324922A (en) * | 2013-07-19 | 2016-02-10 | 艾思玛太阳能技术股份公司 | Inverter comprising at least two direct current inputs, a photovoltaic installation comprising such an inverter, and a method for actuating an inverter |
CN105324922B (en) * | 2013-07-19 | 2019-02-26 | 艾思玛太阳能技术股份公司 | Inverter at least two direct-flow input ends, the method for photovoltaic apparatus and control inverter with inverter |
WO2015007872A1 (en) * | 2013-07-19 | 2015-01-22 | Sma Solar Technology Ag | Inverter comprising at least two direct current inputs, a photovoltaic installation comprising such an inverter, and a method for actuating an inverter |
CN110048671A (en) * | 2014-03-03 | 2019-07-23 | 太阳能技术有限公司 | For applying the method and system of electric field to multiple solar panels |
CN110048671B (en) * | 2014-03-03 | 2021-08-10 | 太阳能技术有限公司 | Method and system for applying an electric field to a plurality of solar panels |
US10886832B2 (en) | 2014-03-26 | 2021-01-05 | Solaredge Technologies Ltd. | Multi-level inverter |
US9318974B2 (en) | 2014-03-26 | 2016-04-19 | Solaredge Technologies Ltd. | Multi-level inverter with flying capacitor topology |
US11855552B2 (en) | 2014-03-26 | 2023-12-26 | Solaredge Technologies Ltd. | Multi-level inverter |
US11632058B2 (en) | 2014-03-26 | 2023-04-18 | Solaredge Technologies Ltd. | Multi-level inverter |
US11296590B2 (en) | 2014-03-26 | 2022-04-05 | Solaredge Technologies Ltd. | Multi-level inverter |
US10886831B2 (en) | 2014-03-26 | 2021-01-05 | Solaredge Technologies Ltd. | Multi-level inverter |
CN104092437A (en) * | 2014-05-22 | 2014-10-08 | 中国科学院广州能源研究所 | Photovoltaic module adjusting circuit and remote monitoring system |
US10230310B2 (en) | 2016-04-05 | 2019-03-12 | Solaredge Technologies Ltd | Safety switch for photovoltaic systems |
US11870250B2 (en) | 2016-04-05 | 2024-01-09 | Solaredge Technologies Ltd. | Chain of power devices |
US11201476B2 (en) | 2016-04-05 | 2021-12-14 | Solaredge Technologies Ltd. | Photovoltaic power device and wiring |
US12057807B2 (en) | 2016-04-05 | 2024-08-06 | Solaredge Technologies Ltd. | Chain of power devices |
US11177663B2 (en) | 2016-04-05 | 2021-11-16 | Solaredge Technologies Ltd. | Chain of power devices |
US11018623B2 (en) | 2016-04-05 | 2021-05-25 | Solaredge Technologies Ltd. | Safety switch for photovoltaic systems |
DE102018127132B4 (en) | 2018-10-30 | 2024-09-05 | Sma Solar Technology Ag | Inverter with at least two DC-DC converters and use of such an inverter in a photovoltaic system |
US11146072B2 (en) | 2018-10-30 | 2021-10-12 | Sma Solar Technology Ag | Inverter with at least two DC/DC converters and use of such an inverter in a photovoltaic installation |
DE102018127132A1 (en) * | 2018-10-30 | 2020-04-30 | Sma Solar Technology Ag | Inverter with at least two DC / DC converters and use of such an inverter in a photovoltaic system |
CN111869086A (en) * | 2018-12-29 | 2020-10-30 | 华为技术有限公司 | Inverter |
US11637431B2 (en) * | 2018-12-29 | 2023-04-25 | Huawei Digital Power Technologies Co., Ltd. | Inverter |
EP3893380A4 (en) * | 2018-12-29 | 2021-11-24 | Huawei Technologies Co., Ltd. | Inverter |
WO2022242135A1 (en) * | 2021-05-18 | 2022-11-24 | 阳光电源股份有限公司 | Power conversion system, power conversion apparatus, and control method therefor |
CN113258773A (en) * | 2021-05-18 | 2021-08-13 | 阳光电源股份有限公司 | Power conversion system, power conversion device and control method thereof |
WO2024026590A1 (en) * | 2022-07-30 | 2024-02-08 | 华为数字能源技术有限公司 | Power conversion device, control method, and power supply system |
US12119758B2 (en) | 2023-07-12 | 2024-10-15 | Solaredge Technologies Ltd. | High frequency multi-level inverter |
Also Published As
Publication number | Publication date |
---|---|
DE102006023563B4 (en) | 2020-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006023563B4 (en) | Photovoltaic system | |
EP1914857B1 (en) | Circuit apparatus and method, in particular for photovoltaic generators | |
DE102008032990B4 (en) | Solar module system and bypass component | |
EP3022835B1 (en) | Inverter comprising at least two direct current inputs, a photovoltaic installation comprising such an inverter, and a method for actuating an inverter | |
EP2104200B1 (en) | Method for controlling a multi-string inverter for photovoltaic systems | |
EP1851846B1 (en) | Inverter | |
AT503542B1 (en) | METHOD AND INVERTER FOR CONVERTING AN EQUIVALENT VOLTAGE INTO AN ALTERNATING VOLTAGE | |
EP3014725B1 (en) | Energy storage device having a dc voltage supply circuit and method for providing a dc voltage from an energy storage device | |
DE102011089297B4 (en) | Energy storage device, system with energy storage device and method for controlling an energy storage device | |
DE102013212682B4 (en) | Energy storage device with DC power supply circuit and method for providing a DC voltage from an energy storage device | |
EP2109021A1 (en) | Machine from automation technology and production system | |
DE102009052461A1 (en) | Inverter circuitry | |
EP2911284B1 (en) | Switch assemblies and method for picking up electric power from multiple module strands | |
DE112009004627T5 (en) | Power conversion device | |
DE102012216691A1 (en) | Converter circuit and method for controlling the converter circuit | |
DE102018216236A1 (en) | Charging circuit for a vehicle-side electrical energy store | |
DE112017005404T5 (en) | DC-DC converter | |
DE102005021152B4 (en) | solar cell device | |
EP2369733B1 (en) | Circuit assembly and method for generating alternating current from a number of power supply units with output DC voltage which varies over time | |
DE112019006840T5 (en) | Control device and solar power generation system | |
DE102014016076A1 (en) | DC / DC converter for a motor vehicle | |
DE102017115000A1 (en) | Photovoltaic unit, photovoltaic system, method for operating a photovoltaic unit and method for operating a photovoltaic system | |
DE102013212692A1 (en) | Energy storage device with DC power supply circuit | |
EP3882067A1 (en) | Vehicle, in particular rail vehicle | |
DE112019005634T5 (en) | Driving device and driving method for semiconductor switch, power conversion device and vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R012 | Request for examination validly filed |
Effective date: 20121221 |
|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: H02N0006000000 Ipc: H02S0040300000 |
|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: H02N0006000000 Ipc: H02S0040300000 Effective date: 20140205 |
|
R084 | Declaration of willingness to licence | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R081 | Change of applicant/patentee |
Owner name: KOSTAL INDUSTRIE ELEKTRIK GMBH & CO. KG, DE Free format text: FORMER OWNER: KOSTAL INDUSTRIE ELEKTRIK GMBH, 58507 LUEDENSCHEID, DE |