EP2697889A2 - Réseau de distribution d'énergie et son procédé de fonctionnement - Google Patents

Réseau de distribution d'énergie et son procédé de fonctionnement

Info

Publication number
EP2697889A2
EP2697889A2 EP11715501.0A EP11715501A EP2697889A2 EP 2697889 A2 EP2697889 A2 EP 2697889A2 EP 11715501 A EP11715501 A EP 11715501A EP 2697889 A2 EP2697889 A2 EP 2697889A2
Authority
EP
European Patent Office
Prior art keywords
energy
communication
predetermined minimum
transmission quality
quality value
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Withdrawn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
EP11715501.0A
Other languages
German (de)
English (en)
Inventor
Jaroslaw Kussyk
Johann Lichtnekert
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 EP2697889A2 publication Critical patent/EP2697889A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • 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
    • H02J2300/10—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
    • 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
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Definitions

  • the invention relates to a method for controlling the energy production of at least one energy delivery device connected to an energy distribution network.
  • the type of use of the distribution networks of a centralized power distribution from one or more transformer stations in the direction of energy consumers
  • a decentralized at least temporarily Electricity distribution eg from a household to other households or from several private energy producers in the direction of the transformer station or the medium-voltage grid.
  • Electricity distribution eg from a household to other households or from several private energy producers in the direction of the transformer station or the medium-voltage grid.
  • the respective current load of the individual distribution networks can be identified and, if possible, the switching status of the distribution networks or their topology adjusted accordingly.
  • the invention has for its object to provide a method for controlling a power distribution network, which can ensure ro ⁇ busten and safe operation even in the event of a fault.
  • an associated energy ⁇ dispenser controller communicates with a an energy distribution network monitoring central device in a uni- or bidirectional communication link and is checked regularly or irregularly, whether the communication link is interrupted, or Transmission quality of the communication link below a predetermined minimum quality value, and the energy input of the at least one energy delivery device in the energy distribution network is reduced or stopped by the control device when the communication connection is interrupted or the transmission quality of the communication link below the predetermined minimum quality value.
  • a major advantage of the method is, for example, that an excessive energy ⁇ feed-in can be avoided in the power distribution network in case of failure.
  • energy delivery devices can not be controlled by the higher-level central facility, or at least not sufficiently, the energy distribution network is converted into a "safe" state, in which the energy supply of those energy delivery devices that are supplied by the Central device is not or only poorly accessible, is driven back. This avoids that uncontrolled too much energy is fed into the energy distribution network and this gets into an unstable state.
  • the energy delivery devices may, for example, be energy production devices or energy storage devices. Especially advantageous is considered when the centering ⁇ ral adopted the control device and thus indirectly the energy supply of the energy delivery device, as long as the communication connection is established or the transmission quality of the communication link reaches the predetermined minimum quality value or more. For as long as a sufficiently good communication between the central device and the local control devices is possible, the control of the power distribution network can be immedi ⁇ applicable perceived by the central device.
  • the control means concerned may reduce or throttle for example, the power generation of the associated with them energy generating means.
  • those of a communication fall affected control devices and the energy of their related energy production facilities completely or partially in associated energy storage facilities and caching there.
  • control devices affected by a communication failure can alternatively also connect the energy generating devices connected to them to such switchable energy consumption devices and consume the energy of the energy generating devices wholly or partly with the energy consuming devices.
  • the central device the electric power feed at least one further energy delivery device which is different from that energy delivery means, in terms of the interruption of the communication link or the lowering of the transmission quality under the specified differently surrounded minimum quality value has been detected, increased sheet redu ⁇ or stops and / or throttles, the electric power receiving a distribution network connected to the other energy consuming device on or off.
  • the central ⁇ means the tendency of the local controllers is known to proceed at a communication fault in a safe operating condition. Consequently, in addition, the central device can also perform appropriate measures to positively influence the network stability. This can be done in ⁇ example by targeted modulation of Energyeinspei ⁇ sung another energy delivery device in another distribution area for which no communication failure has been known ER, or by throwing off of electrical loads. However, care must be taken, for example by monitoring a mains voltage and / or a current load of the power supply lines, that this measure themselves took no negative effects on network stability ⁇ formality have.
  • the invention also relates to an arrangement with at least one energy delivery device and one of the at least one energy delivery device associated control device, which is adapted to control the supply of energy of the energy delivery device in a power distribution network.
  • control device communicates with a central device in a uni- or bidirectional communication link and the control device is designed such that it reduces the energy supply to the energy distribution system through the at least one Energyabga ⁇ striking direction, or stops, when the communication ⁇ connection is interrupted or the transmission quality of the communication connection falls below a predetermined minimum quality value.
  • the control device can for example reduce or stop the energy generation of the energy production device if the communication connection is interrupted or the transmission quality of the communication connection falls below the predetermined minimum quality value. If the energy delivery device is an energy production device and the arrangement furthermore has an energy storage device, the control device is preferably used to generate the energy of the energy production device. completely or partially direct supply device in the energy storage device and there caching when the communication connection is interrupted or the transmission quality of the communication link below the predetermined minimum quality value.
  • the controller connects the switchable power consumption device with the at least one energy delivery ⁇ means and the energy of the at least one energy delivery device in whole or in part to the energy consumption means consumed when the communication connection is interrupted or the transmission quality of the communication link is below the predetermined minimum quality value.
  • the energy distribution network can be, for example, a low-voltage distribution network.
  • Figure 1 shows an embodiment of an inventive arrangement, on the basis of which also the inventive method is exemplified ⁇ tert, and
  • FIGS 2-3 another embodiment of an arrangement according to the invention it ⁇ basis of which a further embodiment of the method according OF INVENTION ⁇ dung will be explained.
  • a distribution network 10 comprises a power transformer 11 with a transformer insurance IIa, a busbar 18 with ge ⁇ closed in the Figure 1 switching devices 12a and 12b as well as distribution strands 13a (between points A and C), 13b (between points b and c) and 13 c (between points c and d).
  • the network strands together with all the associated elements are shown as a line bundle intended to symbolize phase lines LI to L3 and the neutral conductor.
  • Distribution network participants are connected to the distribution network 10 by means of energy meters 14a to 14h.
  • the network strand 13c is connected to the strand 13a by means of a closed switching device 12c.
  • a switching device 12d is opened so that the net strands 13b and 13c are separated from each other.
  • 10 current and / or voltage measuring devices 15a to 15e are installed in the distribution network 10, which narrow the distribution network topology into three network areas.
  • the distribution network subscribers are, for example, energy generating devices 16d, 16g and 16h, energy storage devices 16a, 16e, 16f and energy consuming devices 16b and 16c.
  • local control means tegriert in ⁇ In the energy generating means 16d, 16g and 16h and in the energy storage device 16a, 16e and 16f is a respectively.
  • the local control devices have the task of locally controlling the respectively assigned energy generating device 16d, 16g and 16h or energy storage device 16a, 16e, 16f.
  • control devices in the power generation facilities 16d, 16g and 16h and the Energyspei ⁇ cher wornen 16a, 16e, 16f are here only as an example to understand. Instead, the control devices may also be separate entities, which may be controlled by the one or more Energy generating devices 16d, 16g and 16h and energy storage devices 16a, 16e, 16f are separated. It is also possible that one or more control devices in each case one or more Energyer Wegungseinrichtun- gen 16d, 16g and 16h, one or more energy storage devices 16a, 16e, 16f and / or one or more energy ⁇ appliances are assigned to 16b and 16c.
  • the unidirectional or bidirectional communication connections which are not shown in more detail in FIG. 1 for reasons of clarity, are connected to a central device 17 for network control.
  • the central device 17 is located, for example, in the current and / or voltage measuring device 15c.
  • the communication signals of the communication links can be determined by means of a PLC method
  • PLC Power Line Communication
  • the measurement data of the current and / or voltage measuring devices 15a to 15e reach the central device 17, which contains the
  • the central device 17 controls the local control devices which are associated with the energy generating devices 16d, 16g and 16h and the energy storage devices 16a, 16e, 16f.
  • the control signals are transmitted from the central device 17 via the above communication links. In this way, the central device 17 can control the energy flow in the power lines 13a, 13b and 13c separated from each other by a targeted increase or decrease of power generation in individual network areas and if necessary by a temporary energy storage.
  • the power generation of the power generating means 16d, 16g reduce or stop as soon as the communica ⁇ tion connection is disconnected or the transmission quality of the communication link 16h the below the predetermined minimum quality value.
  • a control device affected by a communication problem is associated with an energy generating device 16d, 16g, 16h and an energy storage device 16a, 16e, 16f
  • the control device can throttle the energy of the energy generating device 16d, 16g, 16h and / or divert it into the energy storage device 16a, 16e, 16f and there caching as soon as the communication connection is interrupted or the transmission quality of the communication link falls below the predetermined minimum quality value.
  • a control device affected by a communication problem is associated with a power generation device 16d, 16g, 16h and a power consumption device 16b, 16c
  • the control device can throttle the power generation of the power generation device 16d, 16g, 16h and / or switch on the power consumption device 16b, 16c and
  • Energy of the power generation device 16 d, 16 g, 16 h completely or partially consume the energy consumption device 16 b, 16 c when the communication link is interrupted or the transmission quality of the communication link falls below the predetermined minimum quality value.
  • a control device affected by a communication problem is assigned to only one or more energy storage devices 16a, 16e, 16f, the control device will preferably keep the energy stored and avoid feeding it into the distribution network.
  • the control of the energy flow in the network can primarily be achieved by locally feeding the excess energy to the network users of individual network areas and retrieving the stored energy in the event of a lack of locally generated energy or by throttling the energy production with a production surplus and no energy transport capacity done in the distribution network.
  • the instantaneous amount of energy stored at the network subscribers is permanently monitored by the central device 17.
  • stabilization of the distribution network 10 is preferably carried out by a locally controlled throttling of the power supply.
  • FIGS. 2 and 3 show a further exemplary embodiment of an arrangement for monitoring and / or regulating the energy distribution in a partial area of a three-phase network with decentralized energy supply and / or storage.
  • a distribution network 20 consists of a power transformer 21 with a transformer fuse 21a, a busbar 22 with branch switching devices 23a and 23b, and distribution network strands, of which only one is shown in more detail in Figure 2 and designated by the reference numeral 24 (between points a and b).
  • the individual Verteilnetzteil choir are connected by means of energy meter 25a to 25c to the network 20, wherein the energy meter 25c is connected upstream of a 3-phase controllable power generator 26.
  • the distribution network subscribers 27a and 27b can be any desired energy generation devices, energy storage devices or energy consumption devices.
  • a current and / or voltage measuring device 28 is installed in the network 20.
  • the network strands, together with all the associated elements, are represented as a line bundle intended to symbolize phase lines LI to L3 and the neutral line.
  • the distribution network area with the network strand 24 is shown in more detail in FIG. It was for the sake of
  • the current and / or voltage measuring device 28 consists of a device 30 for detecting and processing currents and / or voltages and a communication device 31 which is connected to and communicates with phase conductors LI, L2 and L3 and / or the neutral conductor N.
  • the energy meters 25a and 25c (energy counter 25b is not shown, as mentioned) each include a device 32, which also performs a detection and processing of currents and / or voltages of individual power lines LI, L2, L3 in addition to the actual energy metering, and one each Communication device 33.
  • the energy meters 25a and 25c communicate with the current and / or voltage measuring device 28, in particular with a central device 34, which is contained in the current and / or voltage measuring device 28 and monitors, inter alia, the network strands 24.
  • the energy meter 25c additionally contains a switch-off device 35 and a control unit 37 connected to a control unit 37. ne control interface 36 to the power generator 26, which is 3-phase connected via the power meter 25c to the network.
  • the central control unit 34 sends in the power and / or
  • the central device itself can also take measures for network stabilization. In doing so, it can either increase, reduce or stop the energy feed into the distribution network or throw off controllable loads from the distribution network.

Abstract

L'invention concerne entre autres un procédé de commande de la production d'énergie d'au moins un dispositif de distribution d'énergie (16a, 16d-16h). Selon l'invention, un dispositif de commande associé au dispositif de distribution d'énergie (16a, 16d-16h) est en liaison de communication unidirectionnelle ou bidirectionnelle avec un dispositif central (17) assurant la surveillance du réseau de distribution d'énergie (10) et est contrôlé régulièrement ou de manière discontinue pour vérifier si la liaison de communication est interrompue ou si la qualité de transmission de la liaison de communication passe en dessous d'une valeur de qualité minimale prédéfinie et si l'injection d'énergie du au moins un dispositif de distribution d'énergie (16a, 16d-16h) dans le réseau de distribution d'énergie (10) est réduite ou arrêtée par le dispositif de commande, lorsque la liaison de communication est interrompue ou lorsque la qualité de transmission de la liaison de communication passe en dessous de la valeur de qualité minimale prédéfinie.
EP11715501.0A 2011-04-15 2011-04-15 Réseau de distribution d'énergie et son procédé de fonctionnement Withdrawn EP2697889A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/056019 WO2012139657A2 (fr) 2011-04-15 2011-04-15 Réseau de distribution d'énergie et son procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP2697889A2 true EP2697889A2 (fr) 2014-02-19

Family

ID=44625923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11715501.0A Withdrawn EP2697889A2 (fr) 2011-04-15 2011-04-15 Réseau de distribution d'énergie et son procédé de fonctionnement

Country Status (3)

Country Link
US (1) US20140032009A1 (fr)
EP (1) EP2697889A2 (fr)
WO (1) WO2012139657A2 (fr)

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EP2874265B1 (fr) * 2013-11-13 2017-07-19 Siemens Aktiengesellschaft Procédé et système de surveillance et de commande d'une distribution de courant dans un réseau de distribution d'énergie
EP3075051B1 (fr) 2013-11-28 2020-01-08 Vestas Wind Systems A/S Commande de puissance réactive dans une centrale éolienne
US9811064B2 (en) * 2015-04-27 2017-11-07 Solarcity Corporation Energy generation (EG) system generating failsafe level of energy in case of communication failure
US20180212462A1 (en) * 2015-07-29 2018-07-26 Kyocera Corporation Management server and management method
EP3462560B1 (fr) * 2017-09-27 2021-05-12 Indielux UG (Haftungsbeschränkt) Procédé et système permettant de déterminer et de réguler une alimentation d'électricité à un réseau électrique à partir d'un côté de charge d'un circuit électrique

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DE102007044601A1 (de) * 2007-09-19 2009-04-09 Repower Systems Ag Windpark mit Spannungsregelung der Windenergieanlagen und Betriebsverfahren

Also Published As

Publication number Publication date
US20140032009A1 (en) 2014-01-30
WO2012139657A2 (fr) 2012-10-18
WO2012139657A3 (fr) 2013-02-21

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