WO2010071855A3 - Systèmes de conversion d'énergie avec commande de puissance - Google Patents

Systèmes de conversion d'énergie avec commande de puissance Download PDF

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Publication number
WO2010071855A3
WO2010071855A3 PCT/US2009/068871 US2009068871W WO2010071855A3 WO 2010071855 A3 WO2010071855 A3 WO 2010071855A3 US 2009068871 W US2009068871 W US 2009068871W WO 2010071855 A3 WO2010071855 A3 WO 2010071855A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
power control
energy conversion
another embodiment
conversion system
Prior art date
Application number
PCT/US2009/068871
Other languages
English (en)
Other versions
WO2010071855A2 (fr
Inventor
Robert D. Batten
Triet Tu Le
Vincenzo Ditommaso
Ravindranath Naiknaware
Terri Shreeve Fiez
Original Assignee
Azuray Technologies, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/340,715 external-priority patent/US9263895B2/en
Priority claimed from US12/368,990 external-priority patent/US8796884B2/en
Priority claimed from US12/368,987 external-priority patent/US20100157632A1/en
Application filed by Azuray Technologies, Inc. filed Critical Azuray Technologies, Inc.
Priority to CN200980155811.6A priority Critical patent/CN102301578B/zh
Publication of WO2010071855A2 publication Critical patent/WO2010071855A2/fr
Publication of WO2010071855A3 publication Critical patent/WO2010071855A3/fr

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/22The renewable source being solar energy
    • H02J2300/24The renewable source being solar energy of photovoltaic origin
    • H02J2300/26The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/28The renewable source being wind energy
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30The power source being a fuel cell
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/40Synchronising a generator for connection to a network or to another generator
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Selon un mode de réalisation, l'invention concerne un système de conversion de puissance qui peut comprendre un dispositif de commande pour amener un étage de puissance à commander la puissance à destination ou en provenance d'un dispositif de stockage d'énergie. Dans un autre mode de réalisation, un système de conversion de puissance peut inclure un étage symétrique et un dispositif de stockage d'énergie après l'étage symétrique. Dans encore un autre mode de réalisation, un circuit intégré peut comprendre des circuits de commande de puissance pour fournir une commande de puissance à un convertisseur de puissance, et un commutateur de puissance couplé aux circuits de commande de puissance pour faire fonctionner ledit convertisseur. Dans un autre mode de réalisation, un système de conversion de puissance peut comprendre deux ou plusieurs convertisseurs de puissance comportant une commande de puissance.
PCT/US2009/068871 2008-12-20 2009-12-18 Systèmes de conversion d'énergie avec commande de puissance WO2010071855A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980155811.6A CN102301578B (zh) 2008-12-20 2009-12-18 带有功率控制的能量转换系统

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US12/340,715 US9263895B2 (en) 2007-12-21 2008-12-20 Distributed energy conversion systems
US12/340,715 2008-12-20
US14930509P 2009-02-02 2009-02-02
US61/149,305 2009-02-02
US12/368,990 2009-02-10
US12/368,990 US8796884B2 (en) 2008-12-20 2009-02-10 Energy conversion systems with power control
US12/368,987 2009-02-10
US12/368,987 US20100157632A1 (en) 2008-12-20 2009-02-10 Energy Conversion Systems With Power Control

Publications (2)

Publication Number Publication Date
WO2010071855A2 WO2010071855A2 (fr) 2010-06-24
WO2010071855A3 true WO2010071855A3 (fr) 2010-09-23

Family

ID=42269288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/068871 WO2010071855A2 (fr) 2008-12-20 2009-12-18 Systèmes de conversion d'énergie avec commande de puissance

Country Status (4)

Country Link
KR (1) KR20110104525A (fr)
CN (1) CN102301578B (fr)
TW (1) TW201034354A (fr)
WO (1) WO2010071855A2 (fr)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11881814B2 (en) 2005-12-05 2024-01-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US10693415B2 (en) 2007-12-05 2020-06-23 Solaredge Technologies Ltd. Testing of a photovoltaic panel
US11855231B2 (en) 2006-12-06 2023-12-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8473250B2 (en) 2006-12-06 2013-06-25 Solaredge, Ltd. Monitoring of 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
US8319483B2 (en) 2007-08-06 2012-11-27 Solaredge Technologies Ltd. Digital average input current control in power converter
US9112379B2 (en) 2006-12-06 2015-08-18 Solaredge Technologies Ltd. Pairing of components in a direct current distributed power generation system
US8531055B2 (en) 2006-12-06 2013-09-10 Solaredge Ltd. Safety mechanisms, wake up and shutdown methods in distributed power installations
US8319471B2 (en) 2006-12-06 2012-11-27 Solaredge, Ltd. Battery power delivery module
US9088178B2 (en) 2006-12-06 2015-07-21 Solaredge Technologies Ltd Distributed power harvesting systems using DC power sources
US8013472B2 (en) 2006-12-06 2011-09-06 Solaredge, Ltd. Method for distributed power harvesting 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
US11569659B2 (en) 2006-12-06 2023-01-31 Solaredge Technologies Ltd. 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
US8816535B2 (en) 2007-10-10 2014-08-26 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
US11728768B2 (en) 2006-12-06 2023-08-15 Solaredge Technologies Ltd. Pairing of components in a direct current distributed power generation system
US11687112B2 (en) 2006-12-06 2023-06-27 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
US11735910B2 (en) 2006-12-06 2023-08-22 Solaredge Technologies Ltd. Distributed power system using direct current power sources
US8963369B2 (en) 2007-12-04 2015-02-24 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
WO2009073867A1 (fr) 2007-12-05 2009-06-11 Solaredge, Ltd. Onduleurs connectés en parallèle
WO2009072076A2 (fr) 2007-12-05 2009-06-11 Solaredge Technologies Ltd. Détection de courant sur un transistor mosfet
US11264947B2 (en) 2007-12-05 2022-03-01 Solaredge Technologies Ltd. Testing of a photovoltaic panel
WO2009118682A2 (fr) 2008-03-24 2009-10-01 Solaredge Technolgies Ltd. Commutation sous intensité nulle
EP3121922B1 (fr) 2008-05-05 2020-03-04 Solaredge Technologies Ltd. Combineur de puissance en courant continu
TWI408527B (zh) * 2010-11-05 2013-09-11 Tatung Co 太陽能發電裝置及其取樣方法
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
GB2485527B (en) 2010-11-09 2012-12-19 Solaredge Technologies Ltd Arc detection and prevention in a power generation system
GB2486408A (en) 2010-12-09 2012-06-20 Solaredge Technologies Ltd Disconnection of a string carrying direct current
GB2483317B (en) 2011-01-12 2012-08-22 Solaredge Technologies Ltd Serially connected inverters
US8570005B2 (en) 2011-09-12 2013-10-29 Solaredge Technologies Ltd. Direct current link circuit
KR101337437B1 (ko) * 2011-12-26 2013-12-06 고려대학교 산학협력단 최적전력점추적을 이용한 전하펌핑장치 및 전하펌핑방법
GB2498365A (en) 2012-01-11 2013-07-17 Solaredge Technologies Ltd Photovoltaic module
GB2498791A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Photovoltaic panel circuitry
GB2498790A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Maximising power in a photovoltaic distributed power system
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
TWI454031B (zh) * 2012-06-04 2014-09-21 Darfon Electronics Corp 三埠單相單極微換流器及其操作方法
TWI487252B (zh) * 2013-01-22 2015-06-01 Chang Mei Ling 變頻變流驅動器
JP6064642B2 (ja) * 2013-02-08 2017-01-25 オムロン株式会社 昇圧ユニット、パワーコンディショナ、太陽電池システム、プログラム、および電圧追従方法
US9548619B2 (en) 2013-03-14 2017-01-17 Solaredge Technologies Ltd. Method and apparatus for storing and depleting energy
EP4318001A3 (fr) 2013-03-15 2024-05-01 Solaredge Technologies Ltd. Mécanisme de dérivation
KR102149393B1 (ko) * 2013-10-08 2020-08-28 삼성전기주식회사 태양전지 제어장치 및 제어 방법
KR20150045719A (ko) 2013-10-21 2015-04-29 서울대학교산학협력단 전력변환기가 없는 에너지 공급 회로 및 이를 이용한 전자 장치
US10014689B2 (en) 2013-11-18 2018-07-03 Rensselaer Polytechnic Institute Methods to form and operate multi-terminal power systems
CN104868764B (zh) * 2014-02-26 2017-08-04 全汉企业股份有限公司 逆变装置及其电源转换方法
TWI514742B (zh) * 2014-07-16 2015-12-21 Grenergy Opto Inc 電源控制器以及相關之控制方法
TWI549418B (zh) * 2015-03-31 2016-09-11 寧茂企業股份有限公司 交流馬達驅動系統及驅動方法
WO2017066985A1 (fr) * 2015-10-23 2017-04-27 The University Of Hong Kong Sucette d'ondulation prête à l'emploi pour liaisons à tension continue dans des systèmes d'électronique de puissance et des réseaux électriques à courant continu
CN117130027A (zh) 2016-03-03 2023-11-28 太阳能安吉科技有限公司 用于映射发电设施的方法
US11081608B2 (en) 2016-03-03 2021-08-03 Solaredge Technologies Ltd. Apparatus and method for determining an order of power devices in power generation systems
US10599113B2 (en) 2016-03-03 2020-03-24 Solaredge Technologies Ltd. Apparatus and method for determining an order of power devices in power generation systems
US12057807B2 (en) 2016-04-05 2024-08-06 Solaredge Technologies Ltd. Chain of power devices
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
CN106026903B (zh) * 2016-06-30 2017-12-01 扬州华鼎电器有限公司 一种光伏组件串功率优化系统及其优化方法
FR3054384B1 (fr) * 2016-07-21 2018-08-17 Sagemcom Energy & Telecom Sas Procede pour recuperer une energie excedentaire dans une centrale de production d'energie electrique
US10411486B2 (en) 2016-09-09 2019-09-10 Delta Electronics (Thailand) Public Company Limited Power conversion device
CN107947321A (zh) * 2017-12-05 2018-04-20 上海电机学院 一种带组串式mppt的太阳能混合驱动式微型电动汽车
CN107863779B (zh) * 2017-12-14 2019-10-18 清华大学 孤立电力系统中脉冲负载能量调控方法及系统
EA202091204A1 (ru) * 2018-11-20 2020-09-07 ЭлТи ЛАЙТИНГ (ТАЙВАНЬ) КОРПОРЕЙШН Инвертор устройства отслеживания точки использования энергии
CN110581567B (zh) * 2019-08-08 2021-07-30 国网山东省电力公司济南市历城区供电公司 实时跟踪内阻匹配的功率传输方法和系统
DE102021201400A1 (de) 2021-02-15 2022-08-18 Mahle International Gmbh Elektronische Schaltungsanordnung für eine Brennstoffzellenanordnung sowie Brennstoffzellenanordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030198063A1 (en) * 2002-04-18 2003-10-23 Smyth David Bruce Audio band conducted emissions suppression on power feeders
US20050110454A1 (en) * 2003-11-25 2005-05-26 Wen-Yin Tsai Methods and apparatuses for tracking maximum power point of solar electricity generating system
US20050275386A1 (en) * 2002-06-23 2005-12-15 Powerlynx A/S Power converter
US20070159866A1 (en) * 2005-01-28 2007-07-12 Kasemsan Siri Solar array inverter with maximum power tracking
US20070236187A1 (en) * 2006-04-07 2007-10-11 Yuan Ze University High-performance solar photovoltaic ( PV) energy conversion system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5691627A (en) * 1996-09-17 1997-11-25 Hughes Electronics Push-pull full shunt switching bus voltage limiter with current sense capability
JP2002252986A (ja) * 2001-02-26 2002-09-06 Canon Inc インバータ、電源システム及び電源システムにおける漏れ電流低減方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030198063A1 (en) * 2002-04-18 2003-10-23 Smyth David Bruce Audio band conducted emissions suppression on power feeders
US20050275386A1 (en) * 2002-06-23 2005-12-15 Powerlynx A/S Power converter
US20050110454A1 (en) * 2003-11-25 2005-05-26 Wen-Yin Tsai Methods and apparatuses for tracking maximum power point of solar electricity generating system
US20070159866A1 (en) * 2005-01-28 2007-07-12 Kasemsan Siri Solar array inverter with maximum power tracking
US20070236187A1 (en) * 2006-04-07 2007-10-11 Yuan Ze University High-performance solar photovoltaic ( PV) energy conversion system

Also Published As

Publication number Publication date
WO2010071855A2 (fr) 2010-06-24
TW201034354A (en) 2010-09-16
CN102301578B (zh) 2015-01-28
CN102301578A (zh) 2011-12-28
KR20110104525A (ko) 2011-09-22

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