DE602005023069D1 - Einstufige wechselrichtereinrichtung und diesbezügliches steuerungsverfahren für wechselrichter von strom aus energiequellen, insbesondere fotovoltagenquellen - Google Patents

Einstufige wechselrichtereinrichtung und diesbezügliches steuerungsverfahren für wechselrichter von strom aus energiequellen, insbesondere fotovoltagenquellen

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Publication number
DE602005023069D1
DE602005023069D1 DE602005023069T DE602005023069T DE602005023069D1 DE 602005023069 D1 DE602005023069 D1 DE 602005023069D1 DE 602005023069 T DE602005023069 T DE 602005023069T DE 602005023069 T DE602005023069 T DE 602005023069T DE 602005023069 D1 DE602005023069 D1 DE 602005023069D1
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DE
Germany
Prior art keywords
sources
inverter device
stage inverter
photovoltage
inverters
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.)
Active
Application number
DE602005023069T
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English (en)
Inventor
Luigi Egiziano
Nicola Femia
Domenico Granozio
Giovanni Petrone
Giovanni Spagnuolo
Massimo Vitelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universita degli Studi di Salerno
Original Assignee
Universita degli Studi di Salerno
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Application filed by Universita degli Studi di Salerno filed Critical Universita degli Studi di Salerno
Publication of DE602005023069D1 publication Critical patent/DE602005023069D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/906—Solar cell systems
DE602005023069T 2005-07-13 2005-12-20 Einstufige wechselrichtereinrichtung und diesbezügliches steuerungsverfahren für wechselrichter von strom aus energiequellen, insbesondere fotovoltagenquellen Active DE602005023069D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000014A ITSA20050014A1 (it) 2005-07-13 2005-07-13 Dispositivo invertitore a singolo stadio, e relativo metodo di controllo, per convertitori di potenza da sorgenti di energia, in particolare sorgenti fotovoltaiche.
PCT/IT2005/000747 WO2007007360A2 (en) 2005-07-13 2005-12-20 Single stage inverter device, and related controlling method, for converters of power from energy sources, in particular photovoltaic sources

Publications (1)

Publication Number Publication Date
DE602005023069D1 true DE602005023069D1 (de) 2010-09-30

Family

ID=37637598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005023069T Active DE602005023069D1 (de) 2005-07-13 2005-12-20 Einstufige wechselrichtereinrichtung und diesbezügliches steuerungsverfahren für wechselrichter von strom aus energiequellen, insbesondere fotovoltagenquellen

Country Status (11)

Country Link
US (1) US8189352B2 (de)
EP (1) EP1902349B1 (de)
CN (1) CN101253461B (de)
AT (1) ATE478372T1 (de)
CA (1) CA2613038C (de)
DE (1) DE602005023069D1 (de)
ES (1) ES2350744T3 (de)
HK (1) HK1124670A1 (de)
IT (1) ITSA20050014A1 (de)
PT (1) PT1902349E (de)
WO (1) WO2007007360A2 (de)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10693415B2 (en) 2007-12-05 2020-06-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US11881814B2 (en) 2005-12-05 2024-01-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US11569659B2 (en) 2006-12-06 2023-01-31 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8947194B2 (en) 2009-05-26 2015-02-03 Solaredge Technologies Ltd. Theft detection and prevention in a power generation system
US11296650B2 (en) 2006-12-06 2022-04-05 Solaredge Technologies Ltd. System and method for protection during inverter shutdown in distributed power installations
US8384243B2 (en) 2007-12-04 2013-02-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8816535B2 (en) 2007-10-10 2014-08-26 Solaredge Technologies, Ltd. System and method for protection during inverter shutdown 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
US8473250B2 (en) 2006-12-06 2013-06-25 Solaredge, Ltd. Monitoring of distributed power harvesting systems using DC power sources
US8618692B2 (en) 2007-12-04 2013-12-31 Solaredge Technologies Ltd. Distributed power system using direct current power sources
US11735910B2 (en) 2006-12-06 2023-08-22 Solaredge Technologies Ltd. Distributed power system using direct current power sources
US11309832B2 (en) 2006-12-06 2022-04-19 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8319483B2 (en) 2007-08-06 2012-11-27 Solaredge Technologies Ltd. Digital average input current control in power converter
US8319471B2 (en) 2006-12-06 2012-11-27 Solaredge, Ltd. Battery power delivery module
US8963369B2 (en) 2007-12-04 2015-02-24 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
US9088178B2 (en) 2006-12-06 2015-07-21 Solaredge Technologies Ltd Distributed power harvesting systems using DC power sources
US11888387B2 (en) 2006-12-06 2024-01-30 Solaredge Technologies Ltd. Safety mechanisms, wake up and shutdown methods in distributed power installations
US8013472B2 (en) 2006-12-06 2011-09-06 Solaredge, Ltd. Method for distributed power harvesting using DC power sources
US11855231B2 (en) 2006-12-06 2023-12-26 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
US9130401B2 (en) 2006-12-06 2015-09-08 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
PL2212983T3 (pl) 2007-10-15 2021-10-25 Ampt, Llc Układy do wysoko wydajnej energii słonecznej
US7919953B2 (en) 2007-10-23 2011-04-05 Ampt, Llc Solar power capacitor alternative switch circuitry system for enhanced capacitor life
JP2011507465A (ja) 2007-12-05 2011-03-03 ソラレッジ テクノロジーズ リミテッド 分散型電力据付における安全機構、ウェークアップ方法およびシャットダウン方法
WO2009073867A1 (en) 2007-12-05 2009-06-11 Solaredge, Ltd. Parallel connected inverters
US9291696B2 (en) 2007-12-05 2016-03-22 Solaredge Technologies Ltd. Photovoltaic system power tracking method
US11264947B2 (en) 2007-12-05 2022-03-01 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US8049523B2 (en) 2007-12-05 2011-11-01 Solaredge Technologies Ltd. Current sensing on a MOSFET
EP4145691A1 (de) 2008-03-24 2023-03-08 Solaredge Technologies Ltd. Schaltwandler mit einem hilfskommutierungsschaltkreis zur nullstromschaltung
EP3121922B1 (de) 2008-05-05 2020-03-04 Solaredge Technologies Ltd. Gleichstromleistungskombinierer
KR100993108B1 (ko) * 2008-05-30 2010-11-08 군산대학교산학협력단 전력품질개선 및 절전기능을 갖는 계통연계형 태양광발전시스템
KR100983035B1 (ko) * 2008-06-23 2010-09-17 삼성전기주식회사 최대 전력 추종 기능을 갖는 전원 장치
AU2009296407B2 (en) * 2008-09-26 2014-05-08 Apparent Labs, LLC Adaptive generation and control of arbitrary electrical waveforms in a grid-tied power conversion system
US7768155B2 (en) 2008-10-10 2010-08-03 Enphase Energy, Inc. Method and apparatus for improved burst mode during power conversion
CN102272686B (zh) 2009-01-07 2015-04-01 宝威电源意大利股份公司 从可再生能源提取电功率的方法和系统
US20100171482A1 (en) * 2009-01-08 2010-07-08 Yang Ye Method and apparatus of a maximum power point tracking circuit for solar power generation
US8693228B2 (en) * 2009-02-19 2014-04-08 Stefan Matan Power transfer management for local power sources of a grid-tied load
ITSA20090004A1 (it) 2009-02-20 2010-08-21 Univ Degli Studi Salerno Metodo di controllo di un sistema di generazione di potenza elettrica basato su sorgenti di energia, in particolare sorgenti di energia rinnovabile, e relativo dispositivo controllore.
SG175717A1 (en) 2009-04-17 2011-12-29 Ampt Llc Methods and apparatus for adaptive operation of solar power systems
WO2011024374A1 (ja) * 2009-08-24 2011-03-03 三菱電機株式会社 太陽光発電用パワーコンディショナ
CA2774401C (en) 2009-09-18 2019-01-15 Queen's University At Kingston Distributed power generation interface
WO2011049985A1 (en) 2009-10-19 2011-04-28 Ampt, Llc Novel solar panel string converter topology
JP2013527592A (ja) * 2009-12-16 2013-06-27 イーディーエス−ユーエスエー インク． 光起電力ヒーター
DE102010026299A1 (de) * 2010-07-06 2012-01-12 Phoenix Contact Gmbh & Co. Kg Verfahren zur Steuerung von PV-Anlagen in einem Stromversorgungsnetz
US8872384B2 (en) 2010-08-18 2014-10-28 Volterra Semiconductor Corporation Switching circuits for extracting power from an electric power source and associated methods
US9331499B2 (en) 2010-08-18 2016-05-03 Volterra Semiconductor LLC System, method, module, and energy exchanger for optimizing output of series-connected photovoltaic and electrochemical devices
GB2485527B (en) 2010-11-09 2012-12-19 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
US10230310B2 (en) 2016-04-05 2019-03-12 Solaredge Technologies Ltd Safety switch for photovoltaic systems
US10673222B2 (en) 2010-11-09 2020-06-02 Solaredge Technologies Ltd. Arc detection and prevention in a power generation system
US8513913B2 (en) 2010-12-03 2013-08-20 Morningstar Corporation Photovoltaic system charge controller having buck converter with reversed MOSFETS
GB2486408A (en) 2010-12-09 2012-06-20 Solaredge Technologies Ltd Disconnection of a string carrying direct current
TWI413332B (zh) * 2010-12-29 2013-10-21 Chung Hsin Elec & Mach Mfg 電力轉換電路
GB2483317B (en) 2011-01-12 2012-08-22 Solaredge Technologies Ltd Serially connected inverters
EP2503427A1 (de) * 2011-03-23 2012-09-26 ABB Research Ltd. Verfahren zum Suchen des globalen Höchstleistungspunkts
US20130009700A1 (en) * 2011-07-08 2013-01-10 Infineon Technologies Ag Power Converter Circuit with AC Output
GB201113519D0 (en) * 2011-08-04 2011-09-21 Control Tech Ltd Maximum power point tracker
US20130043858A1 (en) * 2011-08-19 2013-02-21 Texas Instruments Incorporated Maximum power point tracking circuit generic to a variety of energy harvester devices
TWI444807B (zh) * 2011-08-23 2014-07-11 Univ Nat Cheng Kung 換流器之類比控制器
US8570005B2 (en) 2011-09-12 2013-10-29 Solaredge Technologies Ltd. Direct current link circuit
DE102011054939A1 (de) * 2011-10-28 2013-05-02 Sma Solar Technology Ag Nachführverfahren und -einrichtung für einen Spannungswandler für eine Photovoltaikanlage
US9837556B2 (en) * 2011-10-31 2017-12-05 Volterra Semiconductor LLC Integrated photovoltaic panel with sectional maximum power point tracking
JP2013097596A (ja) * 2011-11-01 2013-05-20 Sony Corp 太陽電池システム、電子機器および建築物
JP2014533088A (ja) 2011-11-04 2014-12-08 ゼットビービー エナジー コーポレーション 再生可能エネルギー源のための電力変換システムおよび方法
TWI438602B (zh) 2011-12-02 2014-05-21 Ind Tech Res Inst 最大功率點追蹤控制器、最大功率點追蹤系統和最大功率點追蹤方法
CN102570875A (zh) * 2011-12-16 2012-07-11 西安理工大学 能量回馈式高频隔离型电力电子变换电路及光伏发电系统
GB2498365A (en) 2012-01-11 2013-07-17 Solaredge Technologies Ltd Photovoltaic module
GB2498790A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Maximising power in a photovoltaic distributed power system
GB2498791A (en) 2012-01-30 2013-07-31 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
GB2499991A (en) 2012-03-05 2013-09-11 Solaredge Technologies Ltd DC link circuit for photovoltaic array
US10115841B2 (en) 2012-06-04 2018-10-30 Solaredge Technologies Ltd. Integrated photovoltaic panel circuitry
RU2513024C2 (ru) * 2012-07-09 2014-04-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) Адаптивное интегрирующее устройство синхронизации
TWI475795B (zh) * 2012-08-22 2015-03-01 Univ Nat Cheng Kung 光伏變流器及其控制方法
CN102880223A (zh) * 2012-09-27 2013-01-16 易霸科技(威海)股份有限公司 一种小功率光伏逆变系统mppt的模拟电路实现方法
US9141123B2 (en) 2012-10-16 2015-09-22 Volterra Semiconductor LLC Maximum power point tracking controllers and associated systems and methods
US10270251B1 (en) * 2012-10-24 2019-04-23 National Technology & Engineering Solutions Of Sandia, Llc Emulator apparatus for microgrid testing and design
US8848726B1 (en) 2013-01-24 2014-09-30 The Intellisis Corporation I/O data interface for packet processors
WO2014126963A1 (en) * 2013-02-12 2014-08-21 Enphase Energy, Inc. Method and apparatus for chaotic democratic pulse width modulation generation
US9548619B2 (en) 2013-03-14 2017-01-17 Solaredge Technologies Ltd. Method and apparatus for storing and depleting energy
US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
US9397497B2 (en) 2013-03-15 2016-07-19 Ampt, Llc High efficiency interleaved solar power supply system
EP4318001A3 (de) 2013-03-15 2024-05-01 Solaredge Technologies Ltd. Umgehungsmechanismus
US10193347B2 (en) 2013-03-29 2019-01-29 Enphase Energy, Inc. Method and apparatus for improved burst mode during power conversion
TWI470396B (zh) 2013-06-26 2015-01-21 Ind Tech Res Inst 功率點追蹤方法與裝置
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
JP6475942B2 (ja) * 2014-09-25 2019-02-27 ルネサスエレクトロニクス株式会社 半導体装置及びそれを備えた交流抵抗計測システム
US9876442B2 (en) * 2014-10-10 2018-01-23 The Regents Of The University Of California Robust single-phase DC/AC inverter for highly varying DC voltages
TWI545418B (zh) * 2014-11-28 2016-08-11 財團法人工業技術研究院 功率轉換器之控制電路及最大功率點的追蹤方法
GB201513549D0 (en) * 2015-07-31 2015-09-16 Siemens Ag Inverter
CN105450021B (zh) * 2015-12-22 2018-08-24 西北工业大学 一种航空专用低压直流恒功率负载稳定方法
US11018623B2 (en) 2016-04-05 2021-05-25 Solaredge Technologies Ltd. Safety switch for photovoltaic systems
US11177663B2 (en) 2016-04-05 2021-11-16 Solaredge Technologies Ltd. Chain of power devices
TWI626522B (zh) 2016-08-15 2018-06-11 財團法人工業技術研究院 功率點追蹤方法及其裝置
US10931104B2 (en) * 2017-05-30 2021-02-23 Solaredge Technologies Ltd. System and method for interconnected elements of a power system
EP3413454A1 (de) * 2017-06-07 2018-12-12 ABB Schweiz AG Verfahren zum betrieb eines wechselrichters und wechselrichteranordnung
CN107505975B (zh) * 2017-08-30 2023-03-14 浙江大学 一种用于太阳能发电的mppt模拟控制芯片
WO2020219994A1 (en) * 2019-04-25 2020-10-29 Aerovironment Aircraft power bus architecture and power bus stabilization
CN113793544B (zh) * 2021-09-03 2023-09-22 河南省高压电器研究所有限公司 一种光伏系统控制算法的实验系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375662A (en) * 1979-11-26 1983-03-01 Exxon Research And Engineering Co. Method of and apparatus for enabling output power of solar panel to be maximized
US5077652A (en) 1990-10-18 1991-12-31 Dynamote Corporation Dual feedback loop DC-to-AC converter
JP3352334B2 (ja) * 1996-08-30 2002-12-03 キヤノン株式会社 太陽電池の電力制御装置
US6111767A (en) 1998-06-22 2000-08-29 Heliotronics, Inc. Inverter integrated instrumentation having a current-voltage curve tracer
US6285572B1 (en) * 1999-04-20 2001-09-04 Sanyo Electric Co., Ltd. Method of operating a power supply system having parallel-connected inverters, and power converting system
JP2002199614A (ja) * 2000-12-28 2002-07-12 Nec Corp 太陽光電力充電装置
CN1512286A (zh) * 2002-12-30 2004-07-14 北京通力环电气股份有限公司 太阳能电源装置及其最大功率点跟踪控制方法
WO2004100344A2 (en) 2003-05-02 2004-11-18 Ballard Power Systems Corporation Method and apparatus for tracking maximum power point for inverters in photovoltaic applications
EP1623495B1 (de) * 2003-05-06 2009-10-07 Enecsys Limited Stromversorgungsschaltungen
TWI232361B (en) 2003-11-25 2005-05-11 Delta Electronics Inc Maximum-power tracking method and device of solar power generation system
WO2007072517A1 (en) * 2005-12-22 2007-06-28 Power-One Italy S.P.A. A system for producing electric power from renewable sources and a control method thereof
GB2434490B (en) * 2006-01-13 2009-04-01 Enecsys Ltd Power conditioning unit

Also Published As

Publication number Publication date
CN101253461B (zh) 2010-09-29
PT1902349E (pt) 2010-11-23
HK1124670A1 (en) 2009-07-17
EP1902349B1 (de) 2010-08-18
CN101253461A (zh) 2008-08-27
WO2007007360A2 (en) 2007-01-18
WO2007007360A3 (en) 2007-09-20
ATE478372T1 (de) 2010-09-15
US20100265747A1 (en) 2010-10-21
US8189352B2 (en) 2012-05-29
ITSA20050014A1 (it) 2007-01-14
EP1902349A2 (de) 2008-03-26
CA2613038C (en) 2013-11-05
ES2350744T3 (es) 2011-01-26
CA2613038A1 (en) 2007-01-18

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