Systems and methods for photovoltaic string protection

Krein, Philip T.; Kim, Katherine A.; Pilawa-Podgurski, Robert C. N.

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
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A44 - haberdashery
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A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
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B62 - land vehicles for travelling otherwise than on rails
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C25 - electrolytic or electrophoretic processes
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D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
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D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
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Title: Systems and methods for photovoltaic string protection

Abstract

A system and method includes a circuit for protecting a photovoltaic string. A bypass switch connects in parallel to the photovoltaic string and a hot spot protection switch connects in series with the photovoltaic string. A first control signal controls opening and closing of the bypass switch and a second control signal controls opening and closing of the hot spot protection switch. Upon detection of a hot spot condition the first control signal closes the bypass switch and after the bypass switch is closed the second control signal opens the hot spot protection switch.

Inventors:: Krein, Philip T.; Kim, Katherine A.; Pilawa-Podgurski, Robert C. N.

Issue Date:: 2017-10-25

Research Org.:: Univ. of Illinois at Urbana-Champaign, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1404711

Patent Number(s):: 9799779

Application Number:: 14/475,985

Assignee:: The Board of Trustees of the University of Illinois

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/02021 - {for solar cells

H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED 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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES 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
Y02E10/50 - Photovoltaic [PV] energy

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DOE Contract Number:: AR0000217

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Sep 03

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 14 SOLAR ENERGY

Citation Formats


                    Krein, Philip T., Kim, Katherine A., and Pilawa-Podgurski, Robert C. N. Systems and methods for photovoltaic string protection.  United States: N. p., 2017. 
        Web.

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                    Krein, Philip T., Kim, Katherine A., & Pilawa-Podgurski, Robert C. N. Systems and methods for photovoltaic string protection.  United States.

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                    Krein, Philip T., Kim, Katherine A., and Pilawa-Podgurski, Robert C. N. Wed .  
        "Systems and methods for photovoltaic string protection".  United States.  https://www.osti.gov/servlets/purl/1404711.

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@article{osti_1404711,

  title        = {Systems and methods for photovoltaic string protection},

  author       = {Krein, Philip T. and Kim, Katherine A. and Pilawa-Podgurski, Robert C. N.},

  abstractNote = {A system and method includes a circuit for protecting a photovoltaic string. A bypass switch connects in parallel to the photovoltaic string and a hot spot protection switch connects in series with the photovoltaic string. A first control signal controls opening and closing of the bypass switch and a second control signal controls opening and closing of the hot spot protection switch. Upon detection of a hot spot condition the first control signal closes the bypass switch and after the bypass switch is closed the second control signal opens the hot spot protection switch.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {10}

}

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