DE102012001894A1 - Method for managing load of electrical network of wind power plant, involves transmitting signal to current recipient, when surplus of electrical energy is available for automatically switching ON or OFF of use device - Google Patents

Method for managing load of electrical network of wind power plant, involves transmitting signal to current recipient, when surplus of electrical energy is available for automatically switching ON or OFF of use device Download PDF

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Publication number
DE102012001894A1
DE102012001894A1 DE201210001894 DE102012001894A DE102012001894A1 DE 102012001894 A1 DE102012001894 A1 DE 102012001894A1 DE 201210001894 DE201210001894 DE 201210001894 DE 102012001894 A DE102012001894 A DE 102012001894A DE 102012001894 A1 DE102012001894 A1 DE 102012001894A1
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Germany
Prior art keywords
electrical
signal
price
strombeziehers
heating system
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DE201210001894
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German (de)
Inventor
Constantin Kinias
Andreas Dahmke
Jan G. Tönnies
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Individual
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Priority to DE201210001894 priority Critical patent/DE102012001894A1/en
Publication of DE102012001894A1 publication Critical patent/DE102012001894A1/en
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Classifications

    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • H02J2310/14—The load or loads being home appliances
    • 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
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • H02J2310/64—The condition being economic, e.g. tariff based load management
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/10—Energy trading, including energy flowing from end-user application to grid

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The method involves transmitting signal to a current recipient, when a surplus of electrical energy is available for automatically switching ON or OFF of a use device of the current recipient. The use device is an electric heating element or an electric cooling element of a water heating circuit of a heating system. The electric heating element is arranged in a buffer memory of the heating system.

Description

Die Erfindung betrifft ein Verfahren zum Management der Last eines elektrischen Netzes, bei dem dann, wenn ein Überangebot an elektrischer Energie vorhanden ist, den Strombeziehern ein Signal übermittelt wird, durch das einzelne Verbrauchsgeräte des Strombeziehers automatisch ein bzw. ausgeschaltet werden.The invention relates to a method for managing the load of an electrical network, in which, when an oversupply of electrical energy is present, the Strombeziehern a signal is transmitted, are automatically switched on and off by the individual consumables of the Strombeziehers.

Das sog. Lastmanagement ist ein bewehrtes Verfahren zum Vergleichmäßigen der Last eines elektrischen Netzes: Bei einem Überangebot an elektrischer Energie werden bestimmte Verbraucher eingeschaltet, bei einer Übernachfrage an elektrischer Energie werden demgegenüber einzelne Gebrauchsgeräte des Strombeziehers automatisch ausgeschaltet.The so-called load management is a fortified process for equalizing the load of an electrical network: In an oversupply of electrical energy certain consumers are turned on, in a Überachfrage to electrical energy, however, individual utility devices of the Strombeziehers are automatically turned off.

Das Potential der Steuerung der Verbrauchsgeräte ist aber im Hinblick auf die Zunahme von stochastisch einspeisenden Energien, insbesondere der Windenergie, unzureichend. Da die konventionellen Kraftwerke nicht entsprechend der Zunahme der Einspeisung aus regenerativen Quellen zurückgefahren werden können, müssen im Hinblick auf die unzureichende Kapazität der Netze einzelne Anlagen, beispielsweise Windenergieanlagen, ausgeschaltet werden. Dies ist natürlich unerwünscht.However, the potential of the control of the consumer devices is insufficient in view of the increase of stochastically feeding energies, in particular wind energy. Since conventional power plants can not be scaled back in line with the increase in feed-in from regenerative sources, individual systems, such as wind turbines, must be eliminated in view of the insufficient capacity of the grids. This is of course undesirable.

Der Erfindung liegt damit die Aufgabe zugrunde, ein Verfahren zu schaffen, bei dem auch zu Zeiten eines Überangebots an elektrischer Energie durch Zuschalten weiterer Verbrauchsgeräte die Energie aus den Windenergieanlagen in das Netz eingespeist werden und Ortsnah verbraucht werden können.The invention is therefore based on the object to provide a method in which even at times of oversupply of electrical energy by connecting additional consumer devices, the energy from the wind turbines are fed into the network and can be consumed locally.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass eines der Verbrauchsgeräte ein auf den Heizwasserkreislauf der Heizungsanlage des Strombeziehers wirkendes elektrisches Heizelement ist.According to the invention, this object is achieved in that one of the consumption devices is an acting on the Heizwasserkreislauf the heating system of the Strombeziehers electric heating element.

Bei einer anderen Ausführungsform ist das Verbrauchsgerät ein auf den Heizwasserkreislauf der Heizungsanlage des Strombeziehers wirkendes elektrisches Kühlelement. Dieses Ausführungsbeispiel wird dann Verwendung finden, wenn die Heizungsanlage des Strombeziehers als Kühlanlage verwendet werden soll.In another embodiment, the consumption device is an acting on the Heizwasserkreislauf the heating system of Strombeziehers electric cooling element. This embodiment will be used when the heating system of the Strombeziehers is to be used as a cooling system.

Das elektrische Element ist vorzugsweise im Pufferspeicher der Heizungsanlage angeordnet, es kommt jedoch auch eine Ausbildung in Betracht, bei der das elektrische Element eine um ein Rohrstück des Heizwasserkreislaufs gelegte, mit einem an dem Rohrstück anliegenden Widerstandselement versehene Heiz- bzw. Kühlmanschette ist.The electrical element is preferably arranged in the buffer memory of the heating system, but it is also a formation into consideration, in which the electrical element is a laid around a pipe section of Heizwasserkreislaufs, provided with a voltage applied to the pipe section resistance element heating or cooling sleeve.

Bei dem Signal handelt es sich vorzugsweise um ein Preissignal, das das elektrische Heizelement bei Unter- bzw. Überschreiten eines vom Strombezieher vorgewählten Preises bei gleichzeitigem Aktivieren bzw. Deaktivieren des Brenners der Heizungsanlage ein- bzw. ausgeschaltet wird. Entsprechend wird das Kühlelement bei Unter- bzw. Überschreiten eines vom Strombeziehers vorgewählten Preises ein- bzw. ausgeschaltet. Das Signal ist damit sowohl dem Stromzähler, der ggf. auf den günstigeren Tarif umschaltet, als auch dem Heizelement zu übermitteln.The signal is preferably a price signal which turns on or off the electric heating element when the price falls below or is exceeded by a preselected price by the electricity purchaser with simultaneous activation or deactivation of the burner of the heating system. Accordingly, the cooling element is switched on or off when falling below a pre-selected by the Strombeziehers price. The signal is thus both the electricity meter, which optionally switches to the cheaper tariff, as well as the heating element to be transmitted.

Dabei versteht sich, dass das elektrische Heizelement nur dann aktiviert wird, wenn in der Anlage Wärme bzw. Kältebedarf besteht.It is understood that the electric heating element is activated only when there is heat or cooling demand in the system.

Bevorzugt wird das Preissignal von einer Zentrale aus an eine elektrische Spannung auf Niederspannung herabsetzende Trafostation ermittelt, in der das Preissignal umgesetzt und dem von der jeweiligen Trafostation versorgten Niederspannungsnetz aufgeprägt wird.The price signal is preferably determined from a control center to a transformer substation which reduces electrical voltage to low voltage, in which the price signal is converted and impressed on the low-voltage network supplied by the respective transformer station.

Die Übermittlung der Preisinformation an die Trafostation erfolgt vorzugsweise über das diese versorgende Stromnetz, über eine Telefonleitung, ein Glasfaserkabel oder drahtlos, wobei auch hier ein Aufprägen über eine Rundsteueranlage oder aber eine Übermittlung über das Internet, die Telefonleitung oder ein Glasfaserkabel oder drahtlos erfolgt.The transmission of the price information to the transformer station is preferably carried out over the power supply network, via a telephone line, a fiber optic cable or wirelessly, whereby also an imposition via a ripple control system or a transmission via the Internet, the telephone line or a fiber optic cable or wireless.

Statt eines einheitlichen den Tarif umschaltenden (und das Heizelements aktivierenden) Signals kann dieses auch eine Mehrzahl von Preisstufen angeben, wobei der Kunde die Wahl hat, bei welchem Preis er umschalten will. Ein solches Vorgehen erlaubt besseres Lastmanagement.Instead of a uniform tariff switching (and heater activating) signal, it may also indicate a plurality of price levels, with the customer having the choice of which price to switch. Such an approach allows better load management.

Claims (7)

Verfahren zum Management der Last eines elektrischen Netzes bei dem dann, wenn ein Überangebot an elektrischer Energie vorhanden ist, den Strombeziehern ein Signal übermittelt wird, durch das einzelne Verbrauchsgeräte des Strombeziehers automatisch ein- bzw. ausgeschaltet werden, dadurch gekennzeichnet, dass eines der Verbrauchsgeräte ein auf den Heizwasserkreislauf der Heizungsanlage des Strombeziehers wirkendes elektrisches Heizelement ist.A method for managing the load of an electrical network in which, when an oversupply of electrical energy is present, the Strombeziehern a signal is transmitted through which individual consumption devices of the Strombeziehers are automatically switched on or off, characterized in that one of the consumption devices on the Heizwasserkreislauf the heating system of Strombeziehers acting electrical heating element. Verfahren zum Management der Last eines elektrischen Netzes, bei dem dann, wenn ein Überangebot an elektrischer Energie vorhanden ist, den Strombeziehern ein Signal übermittelt wird, durch das einzelne Verbrauchsgeräte des Strombeziehers automatisch ein- bzw. ausgeschaltet werden, dadurch gekennzeichnet, dass eines der Verbrauchsgeräte ein auf den Heizwasserkreislauf der Heizungsanlage des Strombeziehers wirkendes elektrisches Kühlelement ist.A method for managing the load of an electrical network, in which, when an oversupply of electrical energy is present, the Strombeziehern a signal is transmitted through which individual consumption devices of the Strombeziehers are automatically switched on or off, characterized in that one of the consumption devices a on the Heizwasserkreislauf the heating system of the Strombeziehers acting electrical cooling element is. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das elektrische Element im Pufferspeicher der Heizungsanlage angeordnet ist.A method according to claim 1 or 2, characterized in that the electrical element is arranged in the buffer memory of the heating system. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das elektrische Element eine um ein Rohrstück des Wasserkreislaufs gelegte, mit einem an dem Rohrstück anliegenden Widerstandselement versehene Heiz- bzw. Kühlmanschette ist.A method according to claim 1 or 2, characterized in that the electrical element is a laid around a pipe section of the water cycle, provided with a voltage applied to the pipe piece resistance element heating or cooling sleeve. Verfahren nach einem der Ansprüche 1, 3 oder 4, dadurch gekennzeichnet, dass das Signal ein Preissignal ist, wobei das elektrische Heizelement bei Unter- bzw. Überschreiten eines vom Strombezieher vorgewählten Preises bei gleichzeitigem Aktivieren bzw. Deaktivieren des Brenners der Heizungsanlage ein- bzw. ausgeschaltet wird.Method according to one of claims 1, 3 or 4, characterized in that the signal is a price signal, wherein the electric heating element at lower or exceeded a preselected by the Strombezieher price with simultaneous activation or deactivation of the burner of the heating system on or off; is turned off. Verfahren nach einem der vorangehenden Ansprüche gekennzeichnet durch Übermitteln des Preissignals von einer Zentrale aus an eine die elektrische Spannung auf Niederspannung (230 V) herabsetzende Trafostation, in der das Preissignal umgesetzt und dem von der jeweiligen Trafostation versorgten Niederspannungsnetz aufgeprägt wird.Method according to one of the preceding claims, characterized by transmitting the price signal from a control center to a transformer station which lowers the electrical voltage to low voltage (230 V), in which the price signal is converted and impressed on the low-voltage network supplied by the respective transformer station. Verfahren nach Anspruch 6, dadurch gekennzeichnet, das die Übermittlung der Preisinformation an die Trafostation über das diese versorgende Stromnetz, über eine Telefonleitung, ein Glasfaserkabel oder drahtlos erfolgt.A method according to claim 6, characterized in that the transmission of the price information to the transformer station via the power supply network, via a telephone line, a fiber optic cable or wireless.
DE201210001894 2012-02-01 2012-02-01 Method for managing load of electrical network of wind power plant, involves transmitting signal to current recipient, when surplus of electrical energy is available for automatically switching ON or OFF of use device Withdrawn DE102012001894A1 (en)

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DE201210001894 DE102012001894A1 (en) 2012-02-01 2012-02-01 Method for managing load of electrical network of wind power plant, involves transmitting signal to current recipient, when surplus of electrical energy is available for automatically switching ON or OFF of use device

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DE201210001894 DE102012001894A1 (en) 2012-02-01 2012-02-01 Method for managing load of electrical network of wind power plant, involves transmitting signal to current recipient, when surplus of electrical energy is available for automatically switching ON or OFF of use device

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