EP1974446A2 - Wechselrichterschaltung für netzeinspeisung und für netzunabhängigen betrieb - Google Patents
Wechselrichterschaltung für netzeinspeisung und für netzunabhängigen betriebInfo
- Publication number
- EP1974446A2 EP1974446A2 EP07711361A EP07711361A EP1974446A2 EP 1974446 A2 EP1974446 A2 EP 1974446A2 EP 07711361 A EP07711361 A EP 07711361A EP 07711361 A EP07711361 A EP 07711361A EP 1974446 A2 EP1974446 A2 EP 1974446A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tri
- flyback transformer
- input
- primary
- inverter circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3372—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration of the parallel type
-
- 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
- H02M7/4807—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 having a high frequency intermediate AC stage
-
- 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
- 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
- H02J2300/28—The renewable source being wind energy
-
- 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
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Definitions
- the invention relates to an inverter circuit according to the preamble of patent claim 1 or 2.
- the input DC voltage is converted into AC pulses with variable pulse width so that a sinusoidal current is formed in a downstream filter that flows into the grid.
- the input DC voltage is converted into AC pulses with variable pulse width so that a sinusoidal current is formed in a downstream filter that flows into the grid.
- inverters with HF transformer are also very light, the efficiency is only in the range of 92-94%.
- All inverters with RF separation is intrinsically that they are elaborately designed, have multiple RF stages and the energy in the magnetic field of the transformer cores, the electric field of storage capacitors and additionally again in filter stages buffering.
- the object of the invention is therefore to provide an inverter with galvanic isolation, which has only one RF converter and only temporarily stores the energy in the magnetic field of the RF flyback transformer.
- an inverter which has the features of claim 1 or 2 is used.
- Figure 1 shows an inverter circuit according to the invention for the supply of electricity in the network
- FIG. 2 shows a modification of the inverter circuit according to the invention from FIG. 1 for mains-independent operation
- FIGS. 1 and 2 shows the voltage curve of the circuits according to FIGS. 1 and 2 at the output of the primary side and the secondary side.
- Figure 1 shows a first embodiment of the invention for the supply of electricity in the network, wherein the current may have been generated for example by solar energy or by wind power.
- the input voltage Ue with its plus pole is on a first side of two parallel-connected flyback transformers Tri and Tr2, whose other sides are connected via semiconductor switches Tl and T2 to the minus pole.
- a capacitor Cl Between plus and minus is also a capacitor Cl, which is helpful in charging the blocking transformers Tri and Tr2.
- the circuit consists of a primary side P and a secondary side S.
- the magnetic energy converts into current, which flows in the secondary side S via a diode Dl and an active power rectifier consisting of T3- T6 in the output capacitor C2.
- the flyback transformer Tr2 is invited and discharges via a diode D2 and the active power rectifier T3 to T6 in the output capacitor C2.
- Tri and Tr2 work anticyclically and deliver an almost complete current into the output capacitor C2.
- FIG. 2 shows an inverter circuit for off-grid operation in which, in a modification of the circuit according to FIG. 1, in the primary side P, the semiconductor switches T 1 and T 2 Diodes D3 and D4 and in the secondary side S, the diodes Dl and D2 are bridged by semiconductor switches T7 and T8. Further, the capacitor C2 is not in the secondary side S at the output, but between the flyback transformers Tri ', Tr2' and the active power rectifier T3-T6. However, it should be noted that the capacitor C2 can also be at the output, as shown in Fig. 2 by C2 'indicated by dotted lines.
- a current value is impressed on the flyback converter Tri when Tl is switched on, and thus the transformer core is charged with a magnetic energy which corresponds to 0.5 * I 2 * L.
- the magnetic energy converts into current, which flows into the capacitor C2 and thereby transmits the energy 0.5 * U 2 * C.
- the voltage curve at C2 can be controlled sinusoidally by the amount of energy delivered by the flyback converter , Depending on the load condition on the capacitor C2 and the energy content of the flyback converter can be varied by changing the impressed current.
- the flyback converter Tr2 is controlled by T2 anticyclically to the flyback converter Tri and transmits the current via D2 in the output capacitor C2. In order to be able to realize a sinusoidal profile of the voltage half-waves at C2 with rising and decreasing voltage under variable load conditions, the flyback converters Tri and Tr2 are operated forward for increasing voltage and reverse for falling voltage on capacitor C2.
- the diode D3 and on the secondary side of the transistor T7 are active for the primary-side flyback converter Tri on the primary side and for the primary-side flyback converter Tr2, the primary-side diode D4 and the secondary-side transistor T8.
- the subsequent active mains rectifier or polarity switch which consists of the semiconductor switches T3 - T6 with bridging diodes D5 - D8 for the reverse operation, switches every other half cycle to negative voltage and thus realizes the complete sinusoid.
- FIG. 3 shows the profile of the voltage Uc across the capacitor C2 in the circuit according to FIG. 2 as a function of the time t. Two positive sine half-waves are recognized, the second of which is turned down by the polarity switches T3-T6 to form a complete sine wave in the direction -Ua.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006002698A DE102006002698A1 (de) | 2006-01-19 | 2006-01-19 | Wechselrichterschaltung für Netzeinspeisung und für netzunabhängigen Betrieb |
PCT/EP2007/000432 WO2007082753A2 (de) | 2006-01-19 | 2007-01-18 | Wechselrichterschaltung für netzeinspeisung und für netzunabhängigen betrieb auf basis des sperrwandlerprinzips |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1974446A2 true EP1974446A2 (de) | 2008-10-01 |
Family
ID=38171376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07711361A Withdrawn EP1974446A2 (de) | 2006-01-19 | 2007-01-18 | Wechselrichterschaltung für netzeinspeisung und für netzunabhängigen betrieb |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110058396A1 (de) |
EP (1) | EP1974446A2 (de) |
DE (1) | DE102006002698A1 (de) |
WO (1) | WO2007082753A2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9418864B2 (en) | 2008-01-30 | 2016-08-16 | Infineon Technologies Ag | Method of forming a non volatile memory device using wet etching |
CN101931215B (zh) * | 2010-04-16 | 2013-06-05 | 艾默生网络能源有限公司 | 一种风光电集成系统及其整流器过压保护方法 |
US9461474B2 (en) | 2012-01-17 | 2016-10-04 | Infineon Technologies Austria Ag | Power converter circuit with AC output |
US9484746B2 (en) | 2012-01-17 | 2016-11-01 | Infineon Technologies Austria Ag | Power converter circuit with AC output |
US9401663B2 (en) | 2012-12-21 | 2016-07-26 | Infineon Technologies Austria Ag | Power converter circuit with AC output |
EP2805400B1 (de) * | 2012-01-17 | 2020-09-23 | Infineon Technologies Austria AG | Stromrichterschaltung, stromversorgungssystem und verfahren |
US9478989B2 (en) | 2012-01-17 | 2016-10-25 | Infineon Technologies Austria Ag | Power converter circuit with AC output |
US9425622B2 (en) | 2013-01-08 | 2016-08-23 | Infineon Technologies Austria Ag | Power converter circuit with AC output and at least one transformer |
EP2717459A1 (de) * | 2012-10-03 | 2014-04-09 | Belenos Clean Power Holding AG | DC/AC Umrichter mit Zwischenspannung in Form eines gleichgerichteten Sinus mit Offset sowie PWM Wechselrichtung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625539A (en) * | 1994-05-30 | 1997-04-29 | Sharp Kabushiki Kaisha | Method and apparatus for controlling a DC to AC inverter system by a plurality of pulse-width modulated pulse trains |
US20050270001A1 (en) * | 2002-04-12 | 2005-12-08 | Jitaru Ionel D | Soft switching high efficiency flyback converter |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3233248A1 (de) * | 1982-09-08 | 1984-03-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltung fuer ein bordladegeraet zum aufladen einer batterie eines elektrofahrzeuges |
JPS6315674A (ja) * | 1986-07-03 | 1988-01-22 | Kyosan Electric Mfg Co Ltd | 直流・交流変換装置 |
DE3812861A1 (de) * | 1988-04-18 | 1989-10-26 | Siemens Ag | Eigensichere stromversorgungseinrichtung |
US5019954A (en) * | 1989-06-23 | 1991-05-28 | Allied-Signal Inc. | AC/DC conversion with reduced supply waveform distortion |
EP0404996B1 (de) * | 1989-06-30 | 1994-06-01 | Siemens Aktiengesellschaft | Umrichter mit Stromistwertbildung |
US5008795A (en) * | 1990-03-23 | 1991-04-16 | Unisys Corporation | Switched capacitor interleaved forward power converter |
US5627740A (en) * | 1994-12-14 | 1997-05-06 | International Business Machines Corporation | Low dissipation current sensing system for a switched DC power supply |
JP2002514378A (ja) * | 1997-01-24 | 2002-05-14 | シンクォール・インコーポレーテッド | 高効率電力変換装置 |
JP3694578B2 (ja) * | 1997-09-30 | 2005-09-14 | 新電元工業株式会社 | スイッチング電源、及び二次巻線の電圧整流方法 |
DE19855615A1 (de) * | 1997-12-03 | 1999-06-10 | Fuji Electric Co Ltd | Schaltnetzteil |
JP3673075B2 (ja) * | 1998-03-09 | 2005-07-20 | 新電元工業株式会社 | スイッチング電源装置 |
NL1011483C2 (nl) * | 1999-03-08 | 2000-09-12 | Hendrik Oldenkamp | Inrichting voor het omzetten van een gelijkstroom in een wisselstroom. |
US6545883B2 (en) * | 2001-05-07 | 2003-04-08 | Artesyn Technologies, Inc. | Integrated boost-asymmetrical half-bridge converter |
WO2003041248A2 (de) * | 2001-11-05 | 2003-05-15 | Siemens Ag Österreich | Spannungswandler |
US6954366B2 (en) * | 2003-11-25 | 2005-10-11 | Electric Power Research Institute | Multifunction hybrid intelligent universal transformer |
US7050311B2 (en) * | 2003-11-25 | 2006-05-23 | Electric Power Research Institute, Inc. | Multilevel converter based intelligent universal transformer |
DE10356514A1 (de) * | 2003-12-03 | 2005-07-14 | Siemens Ag | Stromversorgungseinrichtung |
-
2006
- 2006-01-19 DE DE102006002698A patent/DE102006002698A1/de not_active Withdrawn
-
2007
- 2007-01-18 WO PCT/EP2007/000432 patent/WO2007082753A2/de active Application Filing
- 2007-01-18 EP EP07711361A patent/EP1974446A2/de not_active Withdrawn
- 2007-01-18 US US12/161,679 patent/US20110058396A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625539A (en) * | 1994-05-30 | 1997-04-29 | Sharp Kabushiki Kaisha | Method and apparatus for controlling a DC to AC inverter system by a plurality of pulse-width modulated pulse trains |
US20050270001A1 (en) * | 2002-04-12 | 2005-12-08 | Jitaru Ionel D | Soft switching high efficiency flyback converter |
Also Published As
Publication number | Publication date |
---|---|
DE102006002698A1 (de) | 2007-08-02 |
US20110058396A1 (en) | 2011-03-10 |
WO2007082753A3 (de) | 2007-09-07 |
WO2007082753A2 (de) | 2007-07-26 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20080725 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOLTWERK ELECTRONICS GMBH |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20120423 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROBERT BOSCH GMBH |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMA SOLAR TECHNOLOGY AG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20181124 |