WO2014101972A1 - Method for providing operational data to a solar panel control device - Google Patents

Method for providing operational data to a solar panel control device Download PDF

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Publication number
WO2014101972A1
WO2014101972A1 PCT/EP2012/077112 EP2012077112W WO2014101972A1 WO 2014101972 A1 WO2014101972 A1 WO 2014101972A1 EP 2012077112 W EP2012077112 W EP 2012077112W WO 2014101972 A1 WO2014101972 A1 WO 2014101972A1
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WO
WIPO (PCT)
Prior art keywords
solar panel
television
look
temperature data
powering
Prior art date
Application number
PCT/EP2012/077112
Other languages
French (fr)
Inventor
Tevfik Orkun
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2012/077112 priority Critical patent/WO2014101972A1/en
Priority to EP12818793.7A priority patent/EP2939326A1/en
Publication of WO2014101972A1 publication Critical patent/WO2014101972A1/en

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    • 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
    • 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
    • H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • 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

Definitions

  • the present invention pertains to a method for providing operational data to a solar panel control device.
  • Maximum power point tracking refers to the technique aiming at getting the maximum possible power from one or more photovoltaic devices, typically solar panels. For obtain maximum electric power from a solar power generation system, it is important to efficiently find out the maximum power point (MPP) of a solar battery.
  • the output characteristics of a solar battery changes rapidly from hour to hour depending on the amount of solar radiation and the temperature. Due to this fact, the solar power generation system should continually be monitored and the solar battery should be operated at a power point with the maximum output.
  • the load is monitored and the dynamic quantity which changes depending on the level of illumination as well as other factors such as temperature and the age of the cell are monitored so that it is ensured that the power drawn will not be less than the maximum available.
  • the solar panel is used as efficiently as it could be.
  • Maximum power point trackers utilize different types of control circuit or logic to search for this point and thus to allow the converter circuit to extract the maximum power available from a cell.
  • the present invention provides a method for powering a television with the help of a maximum power point tracking controller and a solar panel position adjustment means.
  • the solar panel is controlled such that operation of the solar power generation system comprises the steps of determining a maximum power point of said solar battery through obtaining temperature data by means of said television.
  • the invention further enables that time and location data of solar panels are also obtained by means of a television.
  • the present invention provides a method for powering a television utilizing a maximum power point tracking controller and a solar panel position adjustment means as defined in the characterizing portion of Claim 1.
  • Primary object of the present invention is to provide a method for powering a television with the help of a maximum power point tracking controller and a solar panel position adjustment means.
  • the present invention proposes a method according to which ambient temperature data is obtained by a television and such data is communicated to a solar panel controller, namely a maximum power point tracking controller.
  • a solar panel controller namely a maximum power point tracking controller.
  • the ambient temperature constitutes one of the parameters having effect in determining performance of the solar panel
  • obtaining said temperature data directly by means of said television through an appropriate communication network such as LAN, ISDN, WAN, a telephone line network, a mobile communication network, a satellite communication network etc.
  • an appropriate communication network such as LAN, ISDN, WAN, a telephone line network, a mobile communication network, a satellite communication network etc.
  • the present invention also provides that pitch angle of the solar panel powering said television is dynamically adjusted to get an improved performance out of the photovoltaic system.
  • Fig. 1 demonstrates power/voltage curve of a solar panel in a power generation system.
  • the present invention proposes a method for powering a television by utilizing a maximum power point tracking controller and a solar panel position adjustment means as defined in Claim 1.
  • the present invention proposes a method for powering a television through a solar panel by utilizing a maximum power point tracking controller and a solar panel position adjustment means.
  • Fig. 1 demonstrates the basic relation between ambient temperature and output power of a solar panel.
  • ambient temperature data can be obtained by conventional means, this data being used in power tracking algorithms of said maximum power point tracking controller.
  • maximum power point tracking can be carried out and dynamic load adjustment can be applied by changing the duty cycle of the PWM output.
  • said ambient temperature data is directly obtained by means of said television through an appropriate communication network such as Internet.
  • Said method of powering said television comprises the step of determining a maximum power point of said solar battery through dynamically obtaining the ambient temperature data by said television. Said ambient temperature data is then communicated to said maximum power point tracking controller and a maximum power point according to said dynamically obtained ambient temperature data is determined. Ambient temperature data is hence obtained in a more reliable manner without requiring any physical temperature measuring means. A look-up table can be created in this respect and said table can be used when no network connectivity is present.
  • time and location data is obtained by said television.
  • Time and location data is then communicated to a position adjustment means and pitch angle of said solar panel is accordingly dynamically adjusted based on a first look-up table containing predefined solar panel positions in respect of said time and location data.
  • a different configuration in sun height on a month-by-month basis is preferred.
  • the solar panel position adjustment means according to the present invention can be realized by a mechanical arrangement of stepper motors such that a first stepper motor controls the vertical angle of the panel whilst a second one rotates a platform on which the panel is mounted. It is worthy of note that the expense of a solar panel position adjustment means functioning continually throughout the day may not be sensible as the amount of power such a mechanism uses in order to track the sun negates much of its benefits.
  • a second look-up table is created based on said dynamically obtained ambient temperature data.
  • Said ambient temperature data and said time and location data are obtained by a communication network to which said television is connectible.
  • Said first look-up table and said second look-up table are associated to build a combined look-up table such that a temperature data at a given time in said second look-up table is recorded in said first look-up table and a respective predefined solar panel position data at said given time in said first look-up table is associated with said temperature data in said second look-up table. This provides that a missing temperature data can be obtained from the combined table in case no network connectivity is possible.
  • said temperature data can be obtained from said combined look-up table for a time period during which no network connectivity is available and no time/location or temperature information is present.
  • Temperature information associated with the most recently used panel position information in the combined look-up table is in this case used to determine temperature information and the most recent time information is used as a starting point for a counting timer to determine subsequent temperature data in the combined look-up table.

Abstract

The present invention pertains to a method for providing operational data to a solar panel control device. The present invention provides a method for powering a television with the help of a maximum power point tracking controller and a solar panel position adjustment means. The present invention provides a method for powering a television according to which ambient temperature is obtained by network connectivity of said television and a maximum power point of said solar battery is dynamically determined.

Description

METHOD FOR PROVIDING OPERATIONAL DATA TO A SOLAR PANEL CONTROL DEVICE
The present invention pertains to a method for providing operational data to a solar panel control device.
Maximum power point tracking (MPPT) refers to the technique aiming at getting the maximum possible power from one or more photovoltaic devices, typically solar panels. For obtain maximum electric power from a solar power generation system, it is important to efficiently find out the maximum power point (MPP) of a solar battery.
The output characteristics of a solar battery changes rapidly from hour to hour depending on the amount of solar radiation and the temperature. Due to this fact, the solar power generation system should continually be monitored and the solar battery should be operated at a power point with the maximum output.
In other words, the load is monitored and the dynamic quantity which changes depending on the level of illumination as well as other factors such as temperature and the age of the cell are monitored so that it is ensured that the power drawn will not be less than the maximum available. In this way, the solar panel is used as efficiently as it could be. Maximum power point trackers utilize different types of control circuit or logic to search for this point and thus to allow the converter circuit to extract the maximum power available from a cell.
The present invention provides a method for powering a television with the help of a maximum power point tracking controller and a solar panel position adjustment means. The solar panel is controlled such that operation of the solar power generation system comprises the steps of determining a maximum power point of said solar battery through obtaining temperature data by means of said television.
The invention further enables that time and location data of solar panels are also obtained by means of a television.
The present invention provides a method for powering a television utilizing a maximum power point tracking controller and a solar panel position adjustment means as defined in the characterizing portion of Claim 1.
Primary object of the present invention is to provide a method for powering a television with the help of a maximum power point tracking controller and a solar panel position adjustment means.
The present invention proposes a method according to which ambient temperature data is obtained by a television and such data is communicated to a solar panel controller, namely a maximum power point tracking controller. As the ambient temperature constitutes one of the parameters having effect in determining performance of the solar panel, obtaining said temperature data directly by means of said television through an appropriate communication network such as LAN, ISDN, WAN, a telephone line network, a mobile communication network, a satellite communication network etc. has the advantage that information is obtained conveniently in a more reliable manner without requiring any physical temperature measuring means. This also allows traceability of the information over time such that a look-up table can be generated in time or an existing table can be used.
The present invention also provides that pitch angle of the solar panel powering said television is dynamically adjusted to get an improved performance out of the photovoltaic system.
Accompanying drawing is given solely for the purpose of exemplifying the technical approach of the present invention whose advantages were outlined above and will be explained hereinafter in brief.
The drawings are not meant to delimit the scope of protection as identified in the claims nor should they be referred to alone in an effort to interpret the scope identified in said claims without recourse to the technical disclosure in the description of the present invention.
Fig. 1 demonstrates power/voltage curve of a solar panel in a power generation system.
Referring now to the figure outlined above, the present invention proposes a method for powering a television by utilizing a maximum power point tracking controller and a solar panel position adjustment means as defined in Claim 1.
The present invention proposes a method for powering a television through a solar panel by utilizing a maximum power point tracking controller and a solar panel position adjustment means. Fig. 1 demonstrates the basic relation between ambient temperature and output power of a solar panel.
As use and general principles of operation of a maximum power point tracking controller for a solar panel is known to the person skilled in the art, it is worthwhile to note that ambient temperature data can be obtained by conventional means, this data being used in power tracking algorithms of said maximum power point tracking controller. As is also known to the person skilled in the art, maximum power point tracking can be carried out and dynamic load adjustment can be applied by changing the duty cycle of the PWM output. According to the present invention, said ambient temperature data is directly obtained by means of said television through an appropriate communication network such as Internet.
Said method of powering said television comprises the step of determining a maximum power point of said solar battery through dynamically obtaining the ambient temperature data by said television. Said ambient temperature data is then communicated to said maximum power point tracking controller and a maximum power point according to said dynamically obtained ambient temperature data is determined. Ambient temperature data is hence obtained in a more reliable manner without requiring any physical temperature measuring means. A look-up table can be created in this respect and said table can be used when no network connectivity is present.
Further the method of the present invention provides that time and location data is obtained by said television. Time and location data is then communicated to a position adjustment means and pitch angle of said solar panel is accordingly dynamically adjusted based on a first look-up table containing predefined solar panel positions in respect of said time and location data. As the optimum pitch angle of solar panels to get an improved performance out of said photovoltaic panels varies throughout the year, depending on the seasons and the location, a different configuration in sun height on a month-by-month basis is preferred.
The solar panel position adjustment means according to the present invention can be realized by a mechanical arrangement of stepper motors such that a first stepper motor controls the vertical angle of the panel whilst a second one rotates a platform on which the panel is mounted. It is worthy of note that the expense of a solar panel position adjustment means functioning continually throughout the day may not be sensible as the amount of power such a mechanism uses in order to track the sun negates much of its benefits.
According to the present invention, a second look-up table is created based on said dynamically obtained ambient temperature data.
Said ambient temperature data and said time and location data are obtained by a communication network to which said television is connectible.
Said first look-up table and said second look-up table are associated to build a combined look-up table such that a temperature data at a given time in said second look-up table is recorded in said first look-up table and a respective predefined solar panel position data at said given time in said first look-up table is associated with said temperature data in said second look-up table. This provides that a missing temperature data can be obtained from the combined table in case no network connectivity is possible.
In other words, said temperature data can be obtained from said combined look-up table for a time period during which no network connectivity is available and no time/location or temperature information is present. Temperature information associated with the most recently used panel position information in the combined look-up table is in this case used to determine temperature information and the most recent time information is used as a starting point for a counting timer to determine subsequent temperature data in the combined look-up table.

Claims (5)

  1. A method for powering a television through a solar panel by means of a maximum power point tracking controller and a solar panel position adjustment means, said method of powering said television comprising the step of determining a maximum power point of said solar battery through dynamically obtaining ambient temperature data by said television, communicating said ambient temperature data to said maximum power point tracking controller, determining a maximum power point according to said dynamically obtained ambient temperature data, obtaining time and location data by said television, communicating said time and location data to said solar panel position adjustment means and dynamically adjusting position of said solar panel based on a first look-up table containing predefined solar panel positions in respect of said time and location data.
  2. A method for powering a television through a solar panel as set forth in Claim 1 wherein a second look-up table is created based on said dynamically obtained ambient temperature data.
  3. A method for powering a television through a solar panel as set forth in Claim 1 wherein said ambient temperature data and said time and location data are obtained by a communication network to which said television is connectible.
  4. A method for powering a television through a solar panel as set forth in Claim 2 wherein said first look-up table and said second look-up table are associated to build a combined look-up table such that a temperature data at a given time in said second look-up table is recorded in first look-up table and a respective predefined solar panel position data at said given time in said first look-up table is associated with said temperature data in said second look-up table.
  5. A method for powering a television through a solar panel as set forth in Claim 4 wherein said temperature data is obtained from said combined look-up table based on most recently used solar panel position data.
PCT/EP2012/077112 2012-12-31 2012-12-31 Method for providing operational data to a solar panel control device WO2014101972A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2012/077112 WO2014101972A1 (en) 2012-12-31 2012-12-31 Method for providing operational data to a solar panel control device
EP12818793.7A EP2939326A1 (en) 2012-12-31 2012-12-31 Method for providing operational data to a solar panel control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/077112 WO2014101972A1 (en) 2012-12-31 2012-12-31 Method for providing operational data to a solar panel control device

Publications (1)

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WO2014101972A1 true WO2014101972A1 (en) 2014-07-03

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1986306A1 (en) * 2006-01-27 2008-10-29 Sharp Kabushiki Kaisha Power supply system
US20090027001A1 (en) * 2007-07-27 2009-01-29 Haines Lance P Solar powered apparatus
US20110224839A1 (en) * 2010-03-11 2011-09-15 Christopher Thompson Power Point Tracking
US20110276269A1 (en) * 2010-05-07 2011-11-10 Hummel Steven G Systems and methods for forecasting solar power
US20110282600A1 (en) * 2010-05-12 2011-11-17 General Electric Company System and method for photovoltaic plant power curve measurement and health monitoring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1986306A1 (en) * 2006-01-27 2008-10-29 Sharp Kabushiki Kaisha Power supply system
US20090027001A1 (en) * 2007-07-27 2009-01-29 Haines Lance P Solar powered apparatus
US20110224839A1 (en) * 2010-03-11 2011-09-15 Christopher Thompson Power Point Tracking
US20110276269A1 (en) * 2010-05-07 2011-11-10 Hummel Steven G Systems and methods for forecasting solar power
US20110282600A1 (en) * 2010-05-12 2011-11-17 General Electric Company System and method for photovoltaic plant power curve measurement and health monitoring

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