EP2559131A2 - Method for controlling the stability of an electric supply grid - Google Patents

Method for controlling the stability of an electric supply grid

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Publication number
EP2559131A2
EP2559131A2 EP11721473A EP11721473A EP2559131A2 EP 2559131 A2 EP2559131 A2 EP 2559131A2 EP 11721473 A EP11721473 A EP 11721473A EP 11721473 A EP11721473 A EP 11721473A EP 2559131 A2 EP2559131 A2 EP 2559131A2
Authority
EP
European Patent Office
Prior art keywords
supply network
energy
parameters
exchange
stability
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP11721473A
Other languages
German (de)
French (fr)
Inventor
Florian Krug
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2559131A2 publication Critical patent/EP2559131A2/en
Withdrawn legal-status Critical Current

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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
    • H02J3/38—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
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
    • H02J3/241—The oscillation concerning frequency
    • 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
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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
    • H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel 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
    • 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
    • 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
    • H02J2300/28—The renewable source being wind energy
    • 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
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • 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
    • 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
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • 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

Definitions

  • the invention relates to a method for regulating the stability of an electrical supply network.
  • the method is preferably applicable to electrical supply networks to which in addition to conventional energy-generating plants, such as coal power plants, gas power plants or nuclear ⁇ energy plants, and energy generation plants are connected, which feed time varying electrical energy into the supply network ⁇ supply.
  • energy-generating plants such as coal power plants, gas power plants or nuclear ⁇ energy plants, and energy generation plants are connected, which feed time varying electrical energy into the supply network ⁇ supply.
  • These systems include, for example, wind turbines or solar energy systems.
  • a first device which is designed to exchange electrical energy with the supply network, determines via its geographical location a part of the supply network to which the first device for the energy connection is assigned.
  • the first device determines parameters for an intended energy exchange.
  • At least one second device associated with the same part of the supply network for energy exchange determines parameters for an intended energy exchange.
  • the first device takes the energy exchange, taking into account the parameters of the first and second device in such a way that the electrical stability of the part of the supply network is ensured.
  • the mode of operation of the exchange of parameters can be carried out in a similar way to the peer-to-peer communication known per se.
  • car-to-car communication may also be comparable to car-to-car communication, as used for example for networked warning systems between motor vehicles (cars).
  • Parameter sources for local optimization of a part of a network can be, for example, end consumers, network nodes and / or external data sources.
  • e-car electric motor vehicles
  • e-car determine the first parameter parameters
  • traffic control systems offer as external data sources, for example, traffic control systems. These allow the flow of traffic to estimate how many "e-cars" are traveling that might need electrical energy.
  • Weather forecasts also allow location-related statements about an expected traffic flow of "e-cars" in the form of an external database. For example, on public holidays or working days, the energy requirements of "e-cars” will change depending on the weather.
  • a customer forecasting system that estimates an expected energy requirement can also be used as an external database. Due to the decentralized approach no central control ⁇ unit is necessary, so that the network has an increased Robust ⁇ uniform and fast control dynamics.
  • the inventive process permits due to the dezentra ⁇ len approach also gradually introduce the method in existing networks ⁇ supply, so gradually equip these disadvantages. The invention will be explained with reference to a figure FIG 1 he ⁇ .
  • a first device Gl which is designed to exchange electrical energy Pel with a supply network VNW, determines its geographical position
  • An assignment of the first device is performed Gl to a part of the supply network TVNW VNW by means of the geographic location in a two-POS ⁇ th step.
  • the position determination can be done for example via GPS. It can also be effected via signals which are exchanged with a designated point of the supply network VNW via an electrical supply connection or connection cable.
  • the connecting cable is preferably used, which is provided for an intended energy exchange between the first device Gl and the supply network VNW.
  • the first device Gl determined parameter for a PARI beab ⁇ schreibten exchange of energy and transmits it to a designated Administrator VERW.
  • the Administrator VERW may be formed as a central unit of the GE ⁇ entire supply network VNW. Or it is provided as one of several decentralized units at an associated part of the utility network VNW. At least one second unit G2 which is the same part of the supply network TVNW zugeord ⁇ net for an exchange of energy, also determined in a further step, para- meter PAR2 for an intended energy exchange.
  • Steps are taken, which are used by the first device Gl to determine the parameter PARI.
  • the first device Gl assumes in a further step before the Ener ⁇ gienic taking into account the parameters of the first device PARI Gl and the parameter PAR2 the second unit G2 such that the electrical stability of the part of the supply network TVNW is ensured.
  • the evaluation of the electrical stability is ⁇ example as part of the Central Administration or by the decentralized management structure in the supply network VNW.
  • the first device could take over this functionality as a "requesting" device, provided that the required parameters for assessing the stability of the supply network part are transmitted to it.
  • Is determined by the Administrator or the part of the ERS th device is that the associated part of the Ver ⁇ sorgungsnetztechniks has sufficient electrical resources (eg Leis ⁇ tung) is available, then the first device performs the attached ⁇ desired energy exchange.
  • an e-car would be the first device in this case to recharge its deflated batteries.
  • an e-car will carry the desired energy from ⁇ exchange as the first device and its depleted batteries aufla- back to.
  • the e-car will not be the first device to carry out the desired energy exchange immediately and, if necessary, recharge its deflated batteries later.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Feedback Control In General (AREA)

Abstract

The invention relates to a method for controlling the stability of an electric supply grid. A first device, designed to exchange electrical energy with the supply grid, measures a part of the supply grid, with which the first device is associated for the energy connection, by means of the geographic location thereof. The first device measures parameters for an intended energy exchange. At least one second device associated with the same part of the supply grid for energy exchange measures parameters for an intended energy exchange. The first device performs the energy exchange, considering the parameters of the first and the second device, such that the electric stability of the part of the supply grid is ensured.

Description

Beschreibung description
Verfahren zur Regelung der Stabilität eines elektrischen Versorgungsnetzwerks Method for regulating the stability of an electrical supply network
Die Erfindung betrifft ein Verfahren zur Regelung der Stabilität eines elektrischen Versorgungsnetzwerks. Das Verfahren ist bevorzugt bei elektrischen Versorgungsnetzwerken anwendbar, an das neben herkömmlichen Energie-Erzeugungsanlagen, wie beispielsweise Kohlekraftwerke, Gaskraftwerke oder Atom¬ energieanlagen, auch Energie-Erzeugungsanlagen angeschlossen sind, die zeitlich variierend elektrische Energie ins Versor¬ gungsnetzwerk einspeisen. Zu diesen Anlagen gehören beispielsweise Windenergieanlagen oder Solarenergieanlagen. The invention relates to a method for regulating the stability of an electrical supply network. The method is preferably applicable to electrical supply networks to which in addition to conventional energy-generating plants, such as coal power plants, gas power plants or nuclear ¬ energy plants, and energy generation plants are connected, which feed time varying electrical energy into the supply network ¬ supply. These systems include, for example, wind turbines or solar energy systems.
Es ist beabsichtigt, in bestehende elektrische Versorgungs¬ netzwerke verstärkt erneuerbaren Energien einzuspeisen. Dieser Anteil wird derzeit durch die Nutzung von Solarenergie und/oder Windenergie gedeckt. It is intended to feed increasingly renewable energy into existing electrical supply ¬ networks. This share is currently covered by the use of solar energy and / or wind energy.
Zugleich soll der Betrieb von bisher benzin- bzw. dieselbetriebenen Kraftfahrzeugen in den nächsten Jahren bzw. Jahrzehnten verstärkt auf elektrische Energie umgestellt werden. Die dabei erfolgende Entnahme elektrischer Energie aus dem Versorgungsnetzwerk ist somit Verbraucherabhängig und damit zeitlich schwankend. At the same time, the operation of previously gasoline or diesel-powered vehicles in the next few years or decades to be converted to electrical energy. The case taking removal of electrical energy from the supply network is thus consumer dependent and thus temporally fluctuating.
Durch die zeitlich variierende Einspeisung und Entnahme von elektrischer Energie ins Netzwerk kommt es zwangsläufig zu Stabilitätsproblemen hinsichtlich der Parameter Frequenz,Due to the time-varying supply and removal of electrical energy into the network, there are inevitably stability problems with regard to the parameter frequency,
Phase, Pegel der zur Verfügung stehenden elektrischen Energie . Phase, level of available electrical energy.
Aus der US 2009/0281673 AI ist ein so genanntes "Smart Grid" bekannt, bei dem mit Hilfe einer über das Netz verteilterFrom US 2009/0281673 AI a so-called "smart grid" is known, in which using a distributed over the network
"intelligence" der Netzzustand erfasst und kontrolliert wird und bei dem eine im Netz verteilte Energiespeicherung realisiert wird. Aus der WO 2009 014543 AI ist ein weiteres "Smart Grid" be¬ kannt, bei dem elektrische Leistung zwischen dem Netzwerk und einem Fahrzeug ausgetauscht wird. "Intelligence" the network state is detected and controlled and in which a network distributed energy storage is realized. From WO 2009 014543 AI is another "smart grid" be ¬ known, is exchanged in the electrical power between the network and a vehicle.
Beide Druckschriften verwenden einen zentralen Regelungsansatz, um die Netzstabilität bezüglich der Frequenz bzw. der Leistung sicherzustellen. Dieser zentrale Regelungsansatz ist jedoch aufgrund der komplexen Regelungsstrukturen, die große Teile oder das gesamte Netz umgreifen, stark anfällig. Both documents use a central control approach to ensure network stability in terms of frequency or performance. However, this centralized regulatory approach is highly vulnerable due to the complex regulatory structures that span large parts or the entire network.
Auch können zeitlich schnell erfolgende Änderungen in Teilen des Netzes bzw. ein lokal begrenzter Verbraucherbedarf nicht entsprechend schnell erfasst und ausgeglichen bzw. ausgere¬ gelt werden. Quickly taking place over time changes in parts of the network or a localized consumer demand can not be recognized in accordance with fast and balanced or ausgere ¬ gelt.
Es ist daher Aufgabe der vorliegenden Erfindung, ein verbes- sertes Verfahren zur Regelung der Stabilität eines elektrischen Versorgungsnetzwerks anzugeben. It is therefore an object of the present invention to specify an improved method for regulating the stability of an electrical supply network.
Diese Aufgabe wir durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen an- gegeben. This object is achieved by the features of claim 1. Advantageous developments are given in the subclaims.
Beim erfindungsgemäßen Verfahren zur Regelung der Stabilität eines elektrischen Versorgungsnetzwerks ermittelt ein erstes Gerät, das zum Austausch von elektrischer Energie mit dem Versorgungsnetzwerk ausgebildet ist, über seinen geografi- schen Standort einen Teil des Versorgungsnetzwerks, zu dem das erste Gerät für den Energieanschluss zugeordnet ist. Das erste Gerät ermittelt Parameter für einen beabsichtigten Energieaustausch. Zumindest ein zweites Gerät, das dem glei- chen Teil des Versorgungsnetzwerks für einen Energieaustausch zugeordnet ist, ermittelt Parameter für einen beabsichtigten Energieaustausch. Das erste Gerät nimmt den Energieaustausch unter Berücksichtigung der Parameter des ersten und des zwei- ten Geräts derart vor, dass die elektrische Stabilität des Teils des Versorgungsnetzwerks sichergestellt ist. In the method according to the invention for regulating the stability of an electrical supply network, a first device, which is designed to exchange electrical energy with the supply network, determines via its geographical location a part of the supply network to which the first device for the energy connection is assigned. The first device determines parameters for an intended energy exchange. At least one second device associated with the same part of the supply network for energy exchange determines parameters for an intended energy exchange. The first device takes the energy exchange, taking into account the parameters of the first and second device in such a way that the electrical stability of the part of the supply network is ensured.
Im Hinblick auf den Stand der Technik wird mit Hilfe der vor- liegenden Erfindung ein ggf. verwendetes "Smart Grid" entlas¬ tet oder ganz ersetzt, da der benötigte zentrale Regelungs¬ aufwand minimiert wird. In view of the prior art is completely replaced with the help of pre lying invention if one is used "Smart Grid" Release part ¬ tet or because of the required central regulation ¬ expense is minimized.
Die Funktionsweise des Austauschs von Parametern kann ver- gleichbar zur an sich bekannten Peer-to-Peer-Kommunkation erfolgen . The mode of operation of the exchange of parameters can be carried out in a similar way to the peer-to-peer communication known per se.
Alternativ dazu kann sie auch vergleichbar zur car-to-car- Kommunikation erfolgen, wie sie beispielsweise für vernetzte Warnsysteme zwischen Kraftfahrzeugen (PKW's) verwendet wird. Alternatively, it may also be comparable to car-to-car communication, as used for example for networked warning systems between motor vehicles (cars).
Parameterquellen zur lokalen Optimierung eines Teils eines Netzwerks können beispielsweise Endverbraucher, Netzknotenpunkte und/oder auch externe Datenquellen sein. Parameter sources for local optimization of a part of a network can be, for example, end consumers, network nodes and / or external data sources.
Insbesondere für den Fall, dass elektrische Kraftfahrzeuge ("e-car") als erstes Gerät Parameter ermitteln, bieten sich als externe Datenquellen beispielsweise Verkehrsleitsysteme an. Diese erlauben über den Verkehrsfluss eine Abschätzung, wie viele "e-cars" unterwegs sind, die elektrische Energie benötigen könnten. In particular, in the event that electric motor vehicles ("e-car") determine the first parameter parameters, offer as external data sources, for example, traffic control systems. These allow the flow of traffic to estimate how many "e-cars" are traveling that might need electrical energy.
Auch Wetterprognosen erlauben in Form einer externen Datenbank ortsbezogene Aussagen über einen erwarteten Verkehrs- fluss von "e-cars". So wird sich beispielsweise an Feiertagen oder Werktagen der Energiebedarf von "e-cars" in Abhängigkeit vom Wetter verändern. Weather forecasts also allow location-related statements about an expected traffic flow of "e-cars" in the form of an external database. For example, on public holidays or working days, the energy requirements of "e-cars" will change depending on the weather.
Auch ein Abnehmerprognosesystem, das einen erwarteten Ener- giebedarf abschätzt, kann als externe Datenbank Verwendung finden . Aufgrund des dezentralen Ansatzes ist keine zentrale Steuer¬ einheit notwendig, so dass das Netzwerk eine erhöhte Robust¬ heit und eine schnelle Regeldynamik aufweist. Das erfindungsgemäße Verfahren erlaubt aufgrund des dezentra¬ len Ansatzes auch, das Verfahren in existierende Versorgungs¬ netze schrittweise einzuführen, diese also schrittweise nach- zurüsten . Nachfolgend wird die Erfindung anhand einer Figur FIG 1 er¬ läutert . A customer forecasting system that estimates an expected energy requirement can also be used as an external database. Due to the decentralized approach no central control ¬ unit is necessary, so that the network has an increased Robust ¬ uniform and fast control dynamics. The inventive process permits due to the dezentra ¬ len approach also gradually introduce the method in existing networks ¬ supply, so gradually equip these disadvantages. The invention will be explained with reference to a figure FIG 1 he ¬ .
In einem ersten Schritt ermittelt ein erstes Gerät Gl, das zum Austausch von elektrischer Energie Pel mit einem Versor- gungsnetzwerk VNW ausgebildet ist, seinen geografischen In a first step, a first device Gl, which is designed to exchange electrical energy Pel with a supply network VNW, determines its geographical position
Standort POS. Location POS.
Anhand des geografischen Standorts POS erfolgt in einem zwei¬ ten Schritt eine Zuordnung des ersten Geräts Gl zu einem Teil TVNW des Versorgungsnetzwerks VNW. An assignment of the first device is performed Gl to a part of the supply network TVNW VNW by means of the geographic location in a two-POS ¬ th step.
Die Positionsbestimmung kann beispielsweise über GPS erfolgen. Sie kann auch über Signale erfolgen, die mit einer dafür bestimmten Stelle des Versorgungsnetzwerk VNW über ein elekt- risches Versorgungs- zw. Anschlusskabel ausgetauscht werden. The position determination can be done for example via GPS. It can also be effected via signals which are exchanged with a designated point of the supply network VNW via an electrical supply connection or connection cable.
Dabei wird bevorzugt das Anschlusskabel verwendet, das für einen beabsichtigten Energieaustausch zwischen dem ersten Gerät Gl und dem Versorgungsnetzwerk VNW vorgesehen ist. In this case, the connecting cable is preferably used, which is provided for an intended energy exchange between the first device Gl and the supply network VNW.
Das erste Gerät Gl ermittelt Parameter PARI für einen beab¬ sichtigten Energieaustausch und übermittelt diese an eine dafür vorgesehene Verwaltungsstelle VERW. Die Verwaltungsstelle VERW kann als zentrale Einheit des ge¬ samten Versorgungsnetzwerk VNW ausgebildet sein. Oder sie ist als eine von mehreren dezentralen Einheiten an einem zugeordneten Teil des Versorgungsnetzwerks VNW vorgesehen. Zumindest ein zweites Gerät G2, das dem gleichen Teil des Versorgungsnetzwerks TVNW für einen Energieaustausch zugeord¬ net ist, ermittelt in einem weiteren Schritt ebenfalls Para- meter PAR2 für einen beabsichtigten Energieaustausch. The first device Gl determined parameter for a PARI beab ¬ sichtigten exchange of energy and transmits it to a designated Administrator VERW. The Administrator VERW may be formed as a central unit of the GE ¬ entire supply network VNW. Or it is provided as one of several decentralized units at an associated part of the utility network VNW. At least one second unit G2 which is the same part of the supply network TVNW zugeord ¬ net for an exchange of energy, also determined in a further step, para- meter PAR2 for an intended energy exchange.
Die Ermittlung dieser Parameter PAR2 kann analog zu den The determination of these parameters PAR2 can be analogous to the
Schritten erfolgen, die seitens des ersten Geräts Gl zur Ermittlung der Parameter PARI verwendet werden. Steps are taken, which are used by the first device Gl to determine the parameter PARI.
Das erstes Gerät Gl nimmt in einem weiteren Schritt den Ener¬ gieaustausch unter Berücksichtigung der Parameter PARI des ersten Geräts Gl und der Parameter PAR2 des zweiten Geräts G2 derart vor, dass die elektrische Stabilität des Teils des Versorgungsnetzwerks TVNW sichergestellt ist. The first device Gl assumes in a further step before the Ener ¬ gieaustausch taking into account the parameters of the first device PARI Gl and the parameter PAR2 the second unit G2 such that the electrical stability of the part of the supply network TVNW is ensured.
Die Bewertung der elektrische Stabilität erfolgt beispiels¬ weise seitens der zentralen Verwaltungsstelle bzw. seitens der dezentralen Verwaltungsstelle des Versorgungsnetzwerks VNW . The evaluation of the electrical stability is ¬ example as part of the Central Administration or by the decentralized management structure in the supply network VNW.
Es ist jedoch auch möglich, die Bewertung der Stabilität von einem festzulegendem "Master" Gerät aus vorzunehmen. Das erste Gerät könnte als "anfragendes" Gerät diese Funktionalität übernehmen, sofern ihm die benötigten Parameter zur Beurteilung der Stabilität des Versorgungsnetzwerksteils übermittelt werden . However, it is also possible to evaluate stability from a "master" device to be specified. The first device could take over this functionality as a "requesting" device, provided that the required parameters for assessing the stability of the supply network part are transmitted to it.
Wird seitens der Verwaltungsstelle oder auch seitens des ers- ten Geräts festgestellt, dass der zugeordnete Teil des Ver¬ sorgungsnetzwerks genügend elektrische Ressourcen (z.B. Leis¬ tung) zur Verfügung hat, dann nimmt das erste Gerät den ange¬ strebten Energieaustausch vor. Is determined by the Administrator or the part of the ERS th device is that the associated part of the Ver ¬ sorgungsnetzwerks has sufficient electrical resources (eg Leis ¬ tung) is available, then the first device performs the attached ¬ desired energy exchange.
Beispielsweise würde ein e-car als erstes Gerät in diesem Fall seine entleerten Batterien wieder aufladen.  For example, an e-car would be the first device in this case to recharge its deflated batteries.
Wird jedoch seitens der Verwaltungsstelle oder auch seitens des ersten Geräts festgestellt, dass am zugeordneten Teil des Versorgungsnetzwerks bereits eine Vielzahl von anderen Gerä¬ ten (z.B. e-cars als zweite Geräte) angeschlossen sind und bereits Energie aus dem Teil des Versorgungsnetzwerks entneh¬ men, dann erfolgt eine Abschätzung mit Hilfe der zur Verfü- gung stehenden Parameter. However, if it is determined by the Administrator or the first device that the associated part of the Supply network already a variety of other devices ¬ (eg e-cars as second devices) are connected and already energy from the part of the supply network entneh ¬ men, then an estimate with the help of the available parameters.
Falls es im Rahmen der Netzwerksressourcen noch möglich ist, wird ein e-car als erstes Gerät den angestrebten Energieaus¬ tausch vornehmen und seine entleerten Batterien wieder aufla- den. If it is still possible within the framework of network resources, an e-car will carry the desired energy from ¬ exchange as the first device and its depleted batteries aufla- back to.
Falls es im Rahmen der Netzwerksressourcen jedoch nicht mehr möglich ist, wird das e-car als erstes Gerät den angestrebten Energieaustausch nicht sofort vornehmen und ggf. erst später seine entleerten Batterien aufladen.  However, if it is no longer possible within the scope of the network resources, the e-car will not be the first device to carry out the desired energy exchange immediately and, if necessary, recharge its deflated batteries later.

Claims

Patentansprüche claims
1. Verfahren zur Regelung der Stabilität eines elektrischen Versorgungsnetzwerks , 1. A method for regulating the stability of an electrical supply network,
- bei dem ein erstes Gerät, das zum Austausch von elektrischer Energie mit dem Versorgungsnetzwerk ausgebildet ist, über seinen geografischen Standort einen Teil des Versorgungsnetzwerks ermittelt, zu dem das erste Gerät für den Energieanschluss zugeordnet ist,  in which a first device, which is designed to exchange electrical energy with the supply network, determines via its geographical location a part of the supply network to which the first device for the energy connection is assigned,
- bei dem das erstes Gerät Parameter für einen beabsichtigten Energieaustausch ermittelt,  in which the first device determines parameters for an intended energy exchange,
- bei dem zumindest ein zweites Gerät, das dem gleichen Teil des Versorgungsnetzwerks für einen Energieaustausch zugeordnet ist, Parameter für einen beabsichtigten Ener- gieaustausch ermittelt,  in which at least one second device, which is assigned to the same part of the supply network for an energy exchange, determines parameters for an intended energy exchange,
- bei dem das erste Gerät den Energieaustausch unter Berücksichtigung der Parameter des ersten und des zweiten Geräts derart vornimmt, dass die elektrische Stabilität des Teils des Versorgungsnetzwerks sichergestellt ist.  - Wherein the first device performs the energy exchange taking into account the parameters of the first and the second device such that the electrical stability of the part of the supply network is ensured.
2. Verfahren nach Anspruch 1, bei dem ein Endverbraucher als erstes Gerät und/oder als zweites Gerät Parameter für den Energieaustausch ermittelt. 2. The method of claim 1, wherein an end user determined as the first device and / or as a second device parameters for the energy exchange.
3. Verfahren nach Anspruch 1, bei dem das zweite Gerät als Kraftwerksbestandteil Parameter für den Energieaustausch ermittelt . 3. The method of claim 1, wherein the second device determines as a power plant component parameters for the energy exchange.
4. Verfahren nach Anspruch 1 oder 2, bei dem ein elektrisch angetriebenes Automobil als erster und/oder zweiter 4. The method according to claim 1 or 2, wherein an electrically driven automobile as the first and / or second
Verbraucher die Parameter für den Energieaustausch mit dem Versorgungsnetzwerk ermittelt.  Consumer determines the parameters for the energy exchange with the supply network.
5. Verfahren nach Anspruch 1, bei dem das erste Gerät 5. The method of claim 1, wherein the first device
und/oder das zweite Gerät zumindest einen der folgenden and / or the second device at least one of the following
Parameter ermittelt: Parameter determined:
- die beabsichtigte auszutauschende Leistung des Geräts, - the intended capacity of the device to be exchanged,
- die vorherrschende Frequenz im Versorgungsnetzwerk, - die zur Verfügung stehende Leistung im Versorgungsnetzwerk, und/oder - the prevailing frequency in the supply network, - the available power in the supply network, and / or
- die voraussichtliche Änderung der Leistung und der Fre¬ quenz im Versorgungsnetzwerk für den Fall des Energie- austausches. - exchange the expected change in performance and Fri acid sequence in the supply network in the event of energy.
6. Verfahren nach Anspruch 1, bei dem das erste Gerät mit dem zweiten Gerät und/oder mit dem Versorgungsnetz über eine angeschlossene Energieversorgungsleitung benötigte Parame- ter austauschen. 6. The method of claim 1, wherein the first device with the second device and / or exchange with the supply network via a connected power supply line parameters required ter.
7. Verfahren nach Anspruch 1, bei dem das erste Gerät mit dem zweiten Gerät und/oder mit dem Versorgungsnetz über ein Funkkommunikationsverfahren benötigte Parameter austau- sehen. 7. The method of claim 1, wherein the first device with the second device and / or with the supply network via a radio communication method required parameters exchange.
8. Verfahren nach Anspruch 1, bei dem das erste Gerät den 8. The method of claim 1, wherein the first device the
Energieaustausch unter zusätzlicher Berücksichtigung von Parametern eines Netzknotenpunkts des Versorgungsnetzes vornimmt, um die elektrische Stabilität des Teils des Ver¬ sorgungsnetzwerks sicherzustellen . Energy exchange with additional consideration of parameters of a network node of the supply network makes to ensure the electrical stability of the part of the Ver ¬ supply network.
9. Verfahren nach Anspruch 1, bei dem seitens des Versorgungsnetzwerks basierend auf den ermittelten Parametern der Geräte Regeln zur Sicherung der Gesamtstabilität des9. The method of claim 1, wherein on the part of the supply network based on the determined parameters of the devices rules to ensure the overall stability of the
Versorgungsnetzwerks abgeleitet werden. Supply network are derived.
10. Verfahren nach Anspruch 1, bei dem unter der Verwendung der Parameter eine lokale Regelung des Blind- und/oder Wirkleistungsanteils und/oder der Frequenz des Teils des10. The method of claim 1, wherein the use of the parameters, a local control of the reactive and / or active power component and / or the frequency of the part of
Versorgungsnetzwerks durchgeführt wird. Supply network is performed.
11. Verfahren nach Anspruch 1, bei dem elektrische Energie in das Versorgungsnetzwerk über angeschlossenen Kraftwerks- anlagen eingespeist wird, wobei als Kraftwerksanlagen insbesondere Atomenergieanlagen, Wasserkraftwerke, Dampf¬ kraftwerke und/oder Kraftwerke mit zeitlich vorhersehbare Energieleistung verwendet werden. 11. The method of claim 1, in which electrical energy is fed into the supply network via connected power plants, being used as power plants in particular nuclear power plants, hydroelectric power plants, steam ¬ power plants and / or power plants with temporally predictable energy performance.
12. Verfahren nach Anspruch 1, bei dem elektrische Energie in das Versorgungsnetzwerk über angeschlossenen Solarkraftwerke und/oder Windenergieanlagen eingespeist wird. 12. The method of claim 1, wherein the electrical energy is fed into the supply network via connected solar power plants and / or wind turbines.
13. Verfahren nach Anspruch 1, 13. The method according to claim 1,
- bei dem die Standortermittlung anhand eines Anschlus¬ ses, der zum Energieaustausch mit dem Versorgungsnetz- werk vorgesehen ist, erfolgt, oder - in which the location is determined by means of a connection ¬ ses, which is provided for the exchange of energy with the supply network, takes place, or
- bei dem die Standortermittlung mit Hilfe von GPS oder mit Hilfe von DGPRS oder mit einem GPS-basiertem System erfolgt .  - Where the location is determined using GPS or DGPRS or a GPS based system.
EP11721473A 2010-05-19 2011-05-13 Method for controlling the stability of an electric supply grid Withdrawn EP2559131A2 (en)

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US20130116845A1 (en) 2013-05-09
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DE102010021070A1 (en) 2011-11-24
WO2011144529A2 (en) 2011-11-24
US9203241B2 (en) 2015-12-01

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