WO2012075172A3 - Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring - Google Patents

Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring Download PDF

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Publication number
WO2012075172A3
WO2012075172A3 PCT/US2011/062689 US2011062689W WO2012075172A3 WO 2012075172 A3 WO2012075172 A3 WO 2012075172A3 US 2011062689 W US2011062689 W US 2011062689W WO 2012075172 A3 WO2012075172 A3 WO 2012075172A3
Authority
WO
WIPO (PCT)
Prior art keywords
array
monitoring
methods
devices
photovoltaic array
Prior art date
Application number
PCT/US2011/062689
Other languages
French (fr)
Other versions
WO2012075172A2 (en
Inventor
Paul Bundschuh
William Alexander
Original Assignee
Ideal Power Converters 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
Application filed by Ideal Power Converters Inc. filed Critical Ideal Power Converters Inc.
Publication of WO2012075172A2 publication Critical patent/WO2012075172A2/en
Publication of WO2012075172A3 publication Critical patent/WO2012075172A3/en
Priority to US13/705,230 priority Critical patent/US8446043B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/02016—Circuit arrangements of general character for the devices
    • H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2601—Apparatus or methods therefor
    • G01R31/2603—Apparatus or methods therefor for curve tracing of semiconductor characteristics, e.g. on oscilloscope
    • 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
    • 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
    • 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
    • H02J3/388—Islanding, i.e. disconnection of local power supply from the network
    • 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
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Photovoltaic Devices (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Dc-Dc Converters (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

Devices, systems and methods for operating, monitoring and diagnosing photovoltaic arrays used for solar energy collection. The system preferably includes capabilities for monitoring or diagnosing an array by automatically disconnecting portions of the array during normal service (when load is not maximum, and observing the resulting change in electrical characteristics. More intensive diagnostic procedures can be launched if needed. One embodiment provides for performing monitoring or diagnostic operations on the array in daylight or at night. Another embodiment allows monitoring or diagnostic operations to be performed on a portion of the array while other parts of the array continue to collect energy. Yet another embodiment provides a safety mode for an array for maintenance or during emergencies.
PCT/US2011/062689 2010-11-30 2011-11-30 Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring WO2012075172A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/705,230 US8446043B1 (en) 2010-11-30 2012-12-05 Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US41814410P 2010-11-30 2010-11-30
US61/418,144 2010-11-30
US201161480048P 2011-04-28 2011-04-28
US61/480,048 2011-04-28

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/705,230 Continuation US8446043B1 (en) 2010-11-30 2012-12-05 Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring

Publications (2)

Publication Number Publication Date
WO2012075172A2 WO2012075172A2 (en) 2012-06-07
WO2012075172A3 true WO2012075172A3 (en) 2012-10-11

Family

ID=46172543

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2011/062710 WO2012075189A2 (en) 2010-11-30 2011-11-30 Photovoltaic array systems, methods, and devices with bidirectional converter
PCT/US2011/062689 WO2012075172A2 (en) 2010-11-30 2011-11-30 Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2011/062710 WO2012075189A2 (en) 2010-11-30 2011-11-30 Photovoltaic array systems, methods, and devices with bidirectional converter

Country Status (4)

Country Link
US (6) US8461718B2 (en)
MY (1) MY161374A (en)
SG (1) SG190401A1 (en)
WO (2) WO2012075189A2 (en)

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Also Published As

Publication number Publication date
US8461718B2 (en) 2013-06-11
US20130038129A1 (en) 2013-02-14
US8446043B1 (en) 2013-05-21
MY161374A (en) 2017-04-14
SG190401A1 (en) 2013-07-31
US20120274138A1 (en) 2012-11-01
WO2012075172A2 (en) 2012-06-07
US20130307336A1 (en) 2013-11-21
US8471408B2 (en) 2013-06-25
WO2012075189A3 (en) 2012-07-26
US20130314096A1 (en) 2013-11-28
US20130114303A1 (en) 2013-05-09
US8446042B2 (en) 2013-05-21
WO2012075189A2 (en) 2012-06-07

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