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1. WO2009011877 - METHOD AND APPARATUS FOR ANTI-ISLANDING OF DISTRIBUTED POWER GENERATION SYSTEMS

Publication Number WO/2009/011877
Publication Date 22.01.2009
International Application No. PCT/US2008/008712
International Filing Date 16.07.2008
IPC
H02M 7/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
CPC
H02J 2300/24
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
2300Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
20The dispersed energy generation being of renewable origin
22The renewable source being solar energy
24of photovoltaic origin
H02J 3/381
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
381Dispersed generators
H02J 3/383
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
381Dispersed generators
382the generators exploiting renewable energy
383Solar energy, e.g. photovoltaic energy
H02J 3/388
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3Circuit arrangements for ac mains or ac distribution networks
38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
388Islanding, i.e. disconnection of local power supply from the network
Y02E 10/56
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
56Power conversion systems, e.g. maximum power point trackers
Applicants
  • ENPHASE ENERGY, INC. [US]/[US] (AllExceptUS)
  • FORNAGE, Martin [FR]/[US] (UsOnly)
  • HASSAN-ALI, Mudhafar [US]/[US] (UsOnly)
  • BOLFAN, Tibor [US]/[US] (UsOnly)
Inventors
  • FORNAGE, Martin
  • HASSAN-ALI, Mudhafar
  • BOLFAN, Tibor
Agents
  • MOSER, Raymond R., Jr
Priority Data
60/959,64416.07.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ANTI-ISLANDING OF DISTRIBUTED POWER GENERATION SYSTEMS
(FR) PROCEDE ET APPAREIL ANTI-ILOTAGE DE SYSTEMES DE PRODUCTION D'ENERGIE REPARTIS
Abstract
(EN)
A method and apparatus for anti-islanding of distributed power generation systems having an inverter comprising a phase locked loop (PLL), a phase shift generator for injecting a phase shift into the PLL during at least one sample period, and a phase error signature monitor for monitoring at least one phase error response of the PLL during the at least one sample period.
(FR)
L'invention concerne un procédé et un appareil anti-îlotage de systèmes de production d'énergie répartis, comprenant un inverseur constitué d'une boucle à phase asservie, d'un générateur de déphasage destiné à injecter un déphasage dans la boucle à phase asservie pendant au moins une période échantillon, et d'un contrôleur de signature d'erreur de phase destiné à contrôler au moins une réponse d'erreur de phase de la boucle à phase asservie pendant ladite période échantillon au moins.
Also published as
Latest bibliographic data on file with the International Bureau