DE202015100283U1 - Charger for a capacitor - Google Patents
Charger for a capacitor Download PDFInfo
- Publication number
- DE202015100283U1 DE202015100283U1 DE201520100283 DE202015100283U DE202015100283U1 DE 202015100283 U1 DE202015100283 U1 DE 202015100283U1 DE 201520100283 DE201520100283 DE 201520100283 DE 202015100283 U DE202015100283 U DE 202015100283U DE 202015100283 U1 DE202015100283 U1 DE 202015100283U1
- Authority
- DE
- Germany
- Prior art keywords
- charging
- voltage
- intermediate circuit
- capacitors
- switch
- 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.)
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Classifications
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- 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
- H02M1/36—Means for starting or stopping converters
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
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- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- 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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Abstract
Vorrichtung, die mit einer Versorgungsspannungsquelle anschließbar ist und die umfasst: einen Zwischenkreis (120), der eine Diodenbrücke umfasst, die angeordnet ist, in den Zwischenkreis von der Versorgungsspannungsquelle ankommenden elektrischen Strom gleichzurichten; einen Schalter (104) zwischen der Versorgungsspannungsquelle und dem Zwischenkreis (120); einen Ladekreis, der angeordnet ist, Ladespannung von der Versorgungsspannungsquelle zum Zwischenkreis (120) elektrisch zu leiten, um mindestens zwei Kondensatoren zu laden, welche Ladespannung angeordnet ist, zumindest teilweise an dem Schalter (104) vorbei geleitet zu werden; dadurch gekennzeichnet, dass der genannte Zwischenkreis (120) mindestens zwei Kondensatoren (240) umfasst; und der Ladekreis angeordnet ist, Ladespannung zwischen den genannten mindestens zwei Kondensatoren (240) zu schalten.An apparatus connectable to a supply voltage source and comprising: an intermediate circuit (120) comprising a diode bridge arranged to rectify electrical current into the intermediate circuit from the supply voltage source; a switch (104) between the supply voltage source and the intermediate circuit (120); a charging circuit arranged to electrically direct charging voltage from the supply voltage source to the intermediate circuit (120) to charge at least two capacitors, the charging voltage being arranged to be passed at least partially past the switch (104); characterized in that said intermediate circuit (120) comprises at least two capacitors (240); and the charging circuit is arranged to switch charging voltage between said at least two capacitors (240).
Description
GEBIET DER ERFINDUNGFIELD OF THE INVENTION
In der Elektrotechnik werden Inverter verwendet, um Gleichspannung in Wechselspannung umzuwandeln. Inverter werden zum Beispiel in tragbaren, batteriebetriebenen Verbrauchergeräten, in der Produktion von Sonnenenergie und überhaupt in elektronischen Systemen verwendet, in welchen Bedarf für die Erzeugung von Wechselspannung aus Gleichspannung auftritt. Manche Inverter können auch Wechselspannung in Gleichspannung umwandeln, was Gleichrichtung genannt wird. Dreiphaseninverter können in Wechselstrommotoren genutzt werden. In electrical engineering, inverters are used to convert DC voltage to AC voltage. Inverters are used, for example, in portable, battery-powered consumer appliances, in the production of solar energy, and generally in electronic systems in which there is a demand for the generation of AC voltage from DC. Some inverters can also convert AC to DC, which is called rectification. Three-phase inverters can be used in AC motors.
Die von einem Inverter genutzte Gleichstromquelle kann neben oder zusätzlich zu einer Batterie zum Beispiel einen Sonnenkollektor umfassen, der Gleichstrom erzeugt. In größeren Systemen kann die Gleichstromquelle ein dreiphasiges Stromverteilernetz sein. The DC power source used by an inverter may include, in addition to or in addition to a battery, for example, a solar collector that generates DC power. In larger systems, the DC power source may be a three-phase power distribution network.
Inverter können verwendet werden, um die Frequenz des Wechselstroms zu verändern derart, dass die Wechselspannung zunächst gleichgerichtet wird und danach von dem Gleichrichter in den Inverter gespeist wird, der sie in Wechselspannung mit verschiedener Frequenz umwandelt. Zum Gleichrichten nach der oben erwähnten Weise kann beispielsweise ein Gleichrichter auf Diodenbasis, ein Diodengleichrichter, verwendet werden. Die Dioden im Diodengleichrichter können zum Beispiel Silizium- oder Schottky-Dioden umfassen. Inverters can be used to vary the frequency of the alternating current such that the AC voltage is first rectified and then fed by the rectifier into the inverter, which converts it to AC voltage of different frequency. For rectifying in the above-mentioned manner, for example, a diode-based rectifier, a diode rectifier, may be used. The diodes in the diode rectifier may include, for example, silicon or Schottky diodes.
HINTERGRUND DER ERFINDUNGBACKGROUND OF THE INVENTION
Zum Beispiel kann der Inverter, der von dem Diodengleichrichter gespeist wird, einen signifikanten Gleichstromkondensator aufweisen, wobei es vorteilhaft sein könnte, diesen auf den Wert entsprechend der Hauptspannung zu laden, und zwar vor dem Schalten des Hauptschalters oder des Hauptkontaktgebers, so dass das Schalten keine große Schaltstromspitze verursacht. Eine große Schaltstromspitze könnte die Sicherungen des Systems auslösen oder das Versorgungsnetz stören. For example, the inverter powered by the diode rectifier may include a significant DC capacitor, and it may be advantageous to charge it to the value corresponding to the main voltage prior to switching the main switch or the main contactor, so that switching does not occur caused large switching current peak. A large switching current surge could trigger the fuses of the system or disrupt the supply network.
Das Laden des Gleichstromkondensators kann durch einen Ladewiderstand vorgenommen werden, zum Beispiel zwei- oder dreiphasig. Um zu einem guten Endergebnis zu gelangen, sind die Widerstände dann von Fall zu Fall dimensioniert worden und es sind Verluste darin aufgetreten. Alternativ kann zum Laden ein sättigbarer Transformator verwendet werden. Die Dimensionierung des sättigbaren Transformators ist dann aufgrund des signifikanten Ladestroms sorgfältig durchzuführen. The charging of the DC capacitor can be done by a charging resistor, for example two- or three-phase. In order to arrive at a good end result, the resistances have then been dimensioned on a case-by-case basis and losses have occurred therein. Alternatively, a saturable transformer can be used for charging. The dimensioning of the saturable transformer is then carried out carefully due to the significant charging current.
ALLGEMEINE BESCHREIBUNG DER ERFINDUNGGENERAL DESCRIPTION OF THE INVENTION
In dieser Erfindung werden Verfahrensweisen vorgestellt, mit welchen die Ladung eines Gleichstromkondensators mit kleineren Verlusten erreicht werden kann, wobei die Dimensionierung des Ladekreises keine so kritische Arbeitsphase darstellt wie bei der Verwendung einer passiven Widerstandsladung. Mit den erfindungsgemäßen Lösungen kann als Ladespannung eine Spannung kleiner als die Hälfte im Vergleich zu der Lösung, die auf einem sättigbaren Transformator gemäß gegenwärtiger Technik basiert, verwendet werden. In this invention, techniques are presented whereby the charging of a DC capacitor with smaller losses can be achieved, the sizing of the charging circuit not being as critical a working phase as using a passive resistive charge. With the solutions according to the invention can be used as the charging voltage, a voltage less than half compared to the solution, which is based on a saturable transformer according to current technology.
KURZE BESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE FIGURES
DETAILLIERTE BESCHREIBUNG DER ERFINDUNGDETAILED DESCRIPTION OF THE INVENTION
In
Im Ladekreis nach
Bei der Verwendung des Ladekreises nach
In
Der Schalter
Der Ladetransformator
Bei der Verwendung des Ladekreises gemäß
Der Ladekreis von
Der Schalter
In
Bei den Ladekreisen der
Zumindest in gewissen Ladekreisen nach erfindungsgemäßen Ausführungsformen kann die Ladung mit kleineren Verlusten durchgeführt werden, und beim Ladegeschehen kann die Spannung des Ladetransformators bei der Hälfte von der Spannung des Versorgungsnetzes bleiben. Dann ist der Ladestrom zu Beginn des Ladens leichter zu begrenzen. At least in certain charging circuits according to embodiments of the invention, the charge can be made with smaller losses, and during charging, the voltage of the charging transformer can remain at half the voltage of the supply network. Then the charging current is easier to limit at the beginning of loading.
Oben sind nicht unbedingt alle Erscheinungsformen der Erfindung beschrieben, sondern für einen Fachmann auf dem Gebiet liegt es auf der Hand, dass im Rahmen der obigen Lösungen technische Variationen realisiert werden können, die nicht vom Schutzumfang der Erfindung abweichen. Above all, not all manifestations of the invention are described, but for a person skilled in the art it is obvious that technical variations can be realized within the above solutions which do not depart from the scope of the invention.
Oben sind erfindungsgemäße Lösungen unter Verwendung bestimmter elektronischer Komponenten beschrieben. Einem Fachmann auf dem Gebiet ist jedoch klar, dass im Rahmen der Lösungsprinzipien auch andere Komponenten verwendet werden können, die die gleichen technischen Effekte erzeugen wie die oben beschriebenen Komponenten. Above solutions according to the invention are described using certain electronic components. However, it will be apparent to those skilled in the art that other components that produce the same technical effects as the components described above may be used in the solution principles.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20144041U | 2014-02-20 | ||
FIU20144041U FI10496U1 (en) | 2014-02-20 | 2014-02-20 | Capacitor Charger |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202015100283U1 true DE202015100283U1 (en) | 2015-03-23 |
Family
ID=51031586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201520100283 Active DE202015100283U1 (en) | 2014-02-20 | 2015-01-22 | Charger for a capacitor |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN204761281U (en) |
DE (1) | DE202015100283U1 (en) |
FI (1) | FI10496U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3098953A3 (en) * | 2015-05-27 | 2016-12-14 | Sungrow Power Supply Co., Ltd. | Pre-charge circuit and photovoltaic inverter |
-
2014
- 2014-02-20 FI FIU20144041U patent/FI10496U1/en active IP Right Grant
-
2015
- 2015-01-22 DE DE201520100283 patent/DE202015100283U1/en active Active
- 2015-02-15 CN CN201520110736.4U patent/CN204761281U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3098953A3 (en) * | 2015-05-27 | 2016-12-14 | Sungrow Power Supply Co., Ltd. | Pre-charge circuit and photovoltaic inverter |
US9912252B2 (en) | 2015-05-27 | 2018-03-06 | Sungrow Power Supply Co., Ltd. | Pre-charge circuit and photovoltaic inverter |
Also Published As
Publication number | Publication date |
---|---|
CN204761281U (en) | 2015-11-11 |
FI10496U1 (en) | 2014-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20150430 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years | ||
R081 | Change of applicant/patentee |
Owner name: ABB SCHWEIZ AG, CH Free format text: FORMER OWNER: ABB OY, HELSINKI, FI |
|
R082 | Change of representative |
Representative=s name: VIERING, JENTSCHURA & PARTNER MBB PATENT- UND , DE |
|
R151 | Utility model maintained after payment of second maintenance fee after six years | ||
R152 | Utility model maintained after payment of third maintenance fee after eight years |