WO2013037657A2 - Procede et dispositif pour stabiliser un réseau d'alimentation en énergie - Google Patents

Procede et dispositif pour stabiliser un réseau d'alimentation en énergie Download PDF

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Publication number
WO2013037657A2
WO2013037657A2 PCT/EP2012/067115 EP2012067115W WO2013037657A2 WO 2013037657 A2 WO2013037657 A2 WO 2013037657A2 EP 2012067115 W EP2012067115 W EP 2012067115W WO 2013037657 A2 WO2013037657 A2 WO 2013037657A2
Authority
WO
WIPO (PCT)
Prior art keywords
network
power supply
supply network
data
operating state
Prior art date
Application number
PCT/EP2012/067115
Other languages
German (de)
English (en)
Other versions
WO2013037657A3 (fr
Inventor
Rainer Falk
Steffen Fries
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2013037657A2 publication Critical patent/WO2013037657A2/fr
Publication of WO2013037657A3 publication Critical patent/WO2013037657A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0227—Filtering policies
    • H04L63/0263—Rule management
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
    • 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
    • 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
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Definitions

  • the invention relates to a method and apparatus for stabilizing a group consisting of sub-networks associated power supply network and in particular the ANPAS ⁇ solution of an IT security protection of a Smart Energy Grids De- pending on a monitoring information of the power supply network.
  • a conventional power supply network is extended by intelligent control components to a so-called smart grid or intelligent power supply network.
  • the intelligent power supply network has control components that transmit measurement and control data over a data network to control the operation of the power supply network.
  • the transmitted data influences the electrical energy provided by power generation devices.
  • the current or energy consumption of energy consumption units can be controlled by the control data.
  • the energy flow between power grid operators can be influenced depending on control data.
  • measurement data or parameters such as, for example, an electrical voltage, an electrical current, an AC voltage frequency or phase can be measured at different points of the energy supply network and transmitted to a control center of the energy supply network.
  • Messkom ⁇ components provide thereby, for example, so-called Phasor Measurement Units PMU represents.
  • Control components of an energy supply network are connected via a data network.
  • firewall computers are used to filter data packets in order to prevent manipulation of data on the local data network. countries.
  • firewall computer does not serve to stabilize the power supply network itself.
  • EP 1,858,221 describes for example a firewall ⁇ computer for filtering data packets, the filter rules of physical parameters of the processed data packet depend.
  • the physical parameters relate to physical parameters of the data / control communication transmission, such as time and signal strength, but not to a state of the power supply network.
  • the entire energy supply network or at least partial networks of the energy supply network may malfunction.
  • components of the energy ⁇ power supply network such as a substation or Verteilstati ⁇ on, be damaged. Accordingly, an emergency shutdown may occur due to the malfunction. This endangers the security of supply for consumer units.
  • the invention accordingly provides a method for stabilizing a power supply network consisting of linked subnetworks or of subareas of the power supply network whose control components are connected via a data network. exchange measurement and control data in data packets, the method comprising the following steps: determining an operating state of at least one subnetwork ⁇ network of the power supply network, and
  • Adapting filter rules which are used by at least one firewall computer of the data network for filtering data packets, depending on the determined Radiozu ⁇ state of at least one subnetwork.
  • control components have network addresses, which are transmitted in header data of the data packets.
  • the firewall computer adjusts the filter rules to the effect that the occurrence of a predetermined operating status in at least one sub-network of the power supply network to filter out certain control command types or Steuerbe ⁇ fail types, in particular Einschalt capitabetatione to the Power On ⁇ th energy consumption units of a sub-network, automatically or be locked.
  • control commands are filtered out or ge ⁇ blocks, configurable from particular network address or network address ranges of the data network originate.
  • the subnetworks of the power supply network ⁇ are physically coupled to each other and / or logically linked together.
  • the operating condition is at least one subnet ⁇ work of the power supply network by a local or central monitoring unit based on measurement data provided by measuring devices.
  • the measuring devices measure an electrical voltage and / or electric current and / or alternating voltage frequency and / or phase shift existing in the respective subnetwork.
  • the invention further provides a firewall computer with the features specified in claim 8.
  • the invention accordingly also provides a firewall computer for a subnetwork of a power supply network, whose control components can be measured via a data network
  • the firewall computer adapts filter rules for filtering data packets in response to a determined operating state of at least ei ⁇ nem subnetwork of the power supply network.
  • the firewall computer has a configuration memory for storing the filter rules.
  • the firewall computer adjusts the filter rules to the effect that when a certain operation state of certain control command types or Steuerbe ⁇ fail types, in particular Einschaltberichtbetatione for switching on, ten of units of energy consumption of the firewall computer automatically filters out or blocks. Thereby be filtered out by the firewall computer preferably those control commands or blocked, derived from egg ⁇ nem certain configurable network address range, or of certain configured network addresses.
  • the invention further provides an energy automation device with the features specified in claim 11.
  • the invention provides, therefore, a Energyautomatticiansge- advises with a built-in firewall computer unit that adjusts Fil ⁇ terregeln for filtering of data packets in response to a determined operating state of at least a sub-network of the power supply network to stabilize the power supply network.
  • the invention further provides a substation controller having the features specified in claim 12.
  • the invention accordingly provides a substation controller with an integrated firewall computer unit which adapts filter rules for filtering data packets as a function of a determined operating state of at least one subnetwork of the power supply network for stabilizing the power supply network.
  • this is connected via a local data ⁇ network with electrical switching and protection components.
  • the invention further provides a power supply network with the features specified in claim 14.
  • the invention provides a power supply network consisting of several interconnected subnetworks, their control components via a data network
  • the power supply network comprises: a monitoring device for determining an operating state of at least a subnetwork of the power supply network, wherein in each case a firewall ⁇ computer is provided for at least part of the subnetworks, which filters rules for filtering data packets depending on the determined operating state for stabilization of the power supply network.
  • the firewall computer filter ⁇ regulate adapts to the effect that will filter out upon occurrence of a predetermined operating state of certain control command types or Steuerbe ⁇ fail types, in particular Einschalt capitabetatione to the Power On ⁇ th of units of energy consumption of the respective sub-network or blocked.
  • control commands are filtered or blocked in one possible embodiment, and from specific confi ⁇ regener- able network address or network address ranges. It is also possible to filter out or block control commands that are directed to specific configurable network addresses or network address ranges.
  • FIG. 1 is a diagram illustrating an exemplary embodiment of an inventive power supply ⁇ network with a substation controller
  • Fig. 2 is another diagram for illustrating another
  • FIG. 1 shows a signal diagram to illustrate an embodiment of the method according to the invention for stabilizing a power supply network;
  • a power supply network 1, a plurality of components and subnetworks that are physically coupled together.
  • energy generation units generate energy or electricity for the energy supply network.
  • the example shown in FIG. 1 is an intelligent power supply network or a so-called smart grid.
  • the energy generating units in the illustrated example may consist of a power plant 2, wind turbines 3 and a solar power plant 4, which are connected to a first substation 5.
  • a control center 6 can be provided.
  • the substation 5 conducts the energy generated via a transmission path 7 to another substation 8.
  • the energy generated is transformed by the first substation 5 to a high voltage and can then contactedd ⁇ by a second substation 8 down be transformed.
  • Substation 8 transmits the down-converted power supply voltage to a low voltage network 9 in peripheral subnetworks.
  • Power supply network 1 measuring and control devices are provided in many places, which provide measurement data. So 3 sensors Bezie ⁇ hung as measuring devices 10 are for example provided on the wind turbine, providing the measured data to the first substation. 5 Furthermore, 4 measuring devices or sensors 11 are provided on the solar system, which also supply measurement data to the first substation 5. Measuring devices 12, 13, which deliver data to the substations 5 and 8, can also be provided on the transmission path 7. Measuring devices 14, 15 are provided in the low-voltage network 9, which supply measurement data to the second substation 8. Furthermore, in the illustrated embodiment, at the second substation 8 a ne energy storage unit 16 for temporary storage of excess energy connected.
  • transformer substation 17 there is another transformer which, for example, further transforms the network voltage supplied by low-voltage network 15 and supplies it directly to energy consumption units of a local power supply network.
  • the substation of the controller 18 over a local area data network 20 to various intelligent control devices or Intel ⁇ ligent Electronic Devices IEDs 21-1, 21-5 connected.
  • IEDs 21-1, 21-5 In the intelligent control devices 21-i is electrical switching and protection components, which ⁇ example, a control function by means of a microprocessor perform.
  • the substation is controlled by the substation controller 18. This can monitor and control the substation or the local data network 20 locally or remotely via a so-called station PC 22.
  • the station PC 22 may be connected via a data modem 23 to other data networks, in particular the Internet.
  • the network has a GPS unit 24 for providing a time information and geodetic position data.
  • the substation controller 18 has a firewall computer.
  • the firewall computer 19 sets filter rules that are used to filter data packets as a function of a determined operating state of at least one Subnetwork of the power supply network 1, for Stabili ⁇ tion of the power supply network 1 a.
  • the determination of the operational state of the energy supply network 1, or at least a subnetwork of the energy ⁇ supply network 1 or more parts of the energy ⁇ supply network 1 can be carried out in a possible execution ⁇ form by the firewall computer 19 itself, in particular based on measurement data of sensor - or measuring devices of the intelligent power supply network 1 are delivered to the firewall computer.
  • the firewall computer 19 can receive the control data from the substations 5, 8.
  • at least one monitoring device is provided in the intelligent power supply network 1, which comprises the
  • Operating state of at least one subnetwork of the energy ⁇ supply network 1 determined and reports, for example, to the firewall computer 19.
  • the intelligent ⁇ te power supply network 1 was monitoring device to a central operating states.
  • the intelligent power supply network 1 may also have a plurality of decentralized monitoring devices, for example a monitoring device for each subnetwork.
  • the subnetworks of the power supply network 1 are physically coupled together.
  • the high-voltage transmission network 7 is coupled to the low-voltage network 9 at the second substation 8.
  • a logical connection table can be present, for example, of the monitoring device for determining the operating state of the energy supply network 1.
  • the linking of different subnetworks is configurable in one possible embodiment.
  • monitoring or monitoring of at least one subnetwork of the energy supply takes place.
  • supply network 1 wherein derived from measurement data or the like in ⁇ formations that a so-called health status of the energy supply network (State of
  • This operating state SOH is used for DA to adapt an IT security functionality of Ener ⁇ gienetz horrung.
  • firewall filter rules can be adapted automatically as a function of the operating state, for example by the firewall computer 19.
  • is a power control device, in particular the substation controller 18 via an IT security functionality in the form of the firewall computer 19 has the function of an operating state Bezie ⁇ hung as state of health SOH of at least one sub-network of the power supply network 1 corresponding rules än ⁇ changed.
  • a state of health information SOH with regard to an operating state of a superordinate or an adjacent power supply network and taken into account when setting the rules, in particular the filter rules. It is also possible in a variant to monitor several such Energyteil- networks together and to logically link the rules insbesonde ⁇ re the filter rules together.
  • the firewall computer 19 can, for example, the filter rules FR when a specific operating condition, for example, a critical operating condition such anpas ⁇ sen that certain control command types or CON ⁇ printer command types filtered or blocked ⁇ the.
  • a specific operating condition for example, a critical operating condition such anpas ⁇ sen that certain control command types or CON ⁇ printer command types filtered or blocked ⁇ the.
  • Is for example an overload of the Energy ⁇ supply network 1 and a sub-network of the power supply network 1 is detected for example on the basis of a voltage drop or in the event of a reduced AC voltage frequency.
  • Such control commands be ⁇ relationship as control instructions that are compatible with the current situation or the current operating state of the jewei ⁇ time parts supply network votedswei ⁇ se which are network allowed in the current situation of Energyteillacs- are forwarded by the firewall computer 19 to the receiver.
  • a prioritization of the control commands in particular via Att ⁇ ribute be used.
  • the use of role-based access to the transmission of control commands can take place.
  • a firewall computer according to the invention for example the firewall computer 19 shown in FIG.
  • the robustness of the power supply network 1 is nen by the inventive method, in particular ge ⁇ genüber intentional attacks or manipulations, significantly increased.
  • the controllability of the power supply network 1 is limited by IT control instructions.
  • the local data network 20 has a substation controller 18 with a firewall computer 19 integrated therein.
  • the firewall computer 19 can also be formed by a separate unit or an independent computing unit.
  • the subnetwork has a plurality of firewall computers 19-i in order, for example, to restrict the data communication of a remote service access via a modem 23 for data communication with individual field devices or intelligent control devices 21-i.
  • the firewall computer 19-i can each autonomously provide operating state data of the power supply network. Capture 1 and adjust the applicable filter rules accordingly.
  • a main firewall or a main firewall computer acquires state data of the energy supply network and adapts dependent filter rules of the various other firewall computers.
  • such a firewall computer 19-i can be realized as a separate, intermediate component and be integrated in an energy automation device, in particular a field device.
  • Figure 3 shows a signal diagram to explain the operation of the embodiment of Ver ⁇ proceedings invention.
  • Figure 3 shows the communication between a firewall computer 19 and a monitor 25 of the encryption sorgungsnetztechnikes 1.
  • the monitoring device 25 may be ei ⁇ ne central monitoring device or a remote monitoring device which is located for example in a substation.
  • the end of the firewall ⁇ computer 19 asks in a step Sl, first the current operating state of the power supply network 1 relationship ⁇ as a sub-network of the power supply network, for which the energy monitoring means 25 is provided, into a Request Energy Network status message RENSN.
  • the energy network monitoring device 25 carries out corresponding measurements itself or initiates the measurements by associated measuring devices in order to determine the current operating state of the power supply network 1 or of a subnetwork.
  • the determined operating state or state of health SOH is transmitted back to the firewall computer 19 in step S2.
  • the Fi ⁇ rewallrechner 19 then the filter rules for filtering of control commands adaptively or dynamically in the step S4.
  • the set filter policy or the adapted filter rules are then activated in the firewall computer 19 in step S5. Variants of the course shown are possible.
  • the operating state is transmitted by the power network monitoring device 25 at regular time intervals to the or the firewall computer 19, without receiving a corresponding request from the firewall computer 19.
  • a feedback may be sent by the power network firewall 19 to the power network monitor 25 after the rules have been adjusted.
  • the energy network monitoring device 25 can report the operating state to the firewall computer 19 when certain events occur, so that the latter sets the rules, in particular the filter rules, accordingly.
  • the monitoring device 25 can measure the AC frequency of one or more local subnetworks of the power supply network 1, and transmit corresponding messages to associated firewall computers 19 when the frequency threshold value TH falls below a frequency threshold value.
  • those firewall computer 19 to be addressed which are located in the vicinity of the monitoring device 25, so as to obtain a stronger or faster effect in Stabili ⁇ tion of the power supply network. 1
  • the firewall computers 19 and the energy monitoring device 25 have network addresses, the network addresses coding or imposing the position or position of the firewall computer 19 or monitoring devices 25.
  • the firewall computer 19 may ⁇ the operating state at step Sl by those Energy network monitoring equipment 25 to query within the energy supply network 1, are also in ih ⁇ rer vicinity, especially those which have a similar network address or has a network address which are in a predetermined network address range. Alternatively, matching can take place using the position data supplied by GPS units.
  • the network address area can be stored, for example, in the firewall computer 19 in a configuration memory.
  • the energy monitoring device 25 may evaluate the effect of an operating state message that goes to different firewall computers 19.
  • a firewall computer 19 its filtering rules based on a corresponding message in terms of a critical operational condition and reports for example, that he can control commands of a particular command type from now blo ⁇ ckiert, check the associated energy monitor 25 whether a change of filter rules FR affect the of their monitored operating status of the network or not. If, for example, at a sinking network frequency f the firewall computer 19 is caused to change its filter rules FR to block power-on commands, and thereby the network frequency f is stabilized, the power monitoring device 25 recognizes that the addressed firewall computer 19 is relevant and will turn it on - arrival at such occurrence of a critical operating state respond again.
  • filter rules FR may also be relaxed to facilitate routing to certain control commands of a particular control command type. For example, switch-on commands for switching on energy generators can be sent out when the network frequency f decreases, and at the same time the filter rules blocking such a control command type can be canceled. Furthermore, it is possible that with exceeding a certain threshold, for example, above a certain mains voltage the filter rules FR specifically adapted in such a ⁇ to that Abschalt tribebeliste are passed.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • Business, Economics & Management (AREA)
  • Computer Hardware Design (AREA)
  • General Business, Economics & Management (AREA)
  • Power Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de stabiliser un réseau d'alimentation en énergie composé de réseaux partiels interconnectés dont les composants de commande échangent des données de mesure et de commande sous forme de paquets de données par l'intermédiaire d'un réseau de données, le procédé comprenant les étapes suivantes: déterminer un état de fonctionnement d'au moins un réseau partiel du réseau d'alimentation en énergie; et adapter les règles de filtrage, qui sont utilisées par au moins un calculateur de pare-feu du réseau de données pour filtrer les paquets de données, en fonction de l'état de fonctionnement déterminé du au moins un réseau partiel.
PCT/EP2012/067115 2011-09-12 2012-09-03 Procede et dispositif pour stabiliser un réseau d'alimentation en énergie WO2013037657A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011082504A DE102011082504A1 (de) 2011-09-12 2011-09-12 Verfahren und Vorrichtung zum Stabilisieren eines Energieversorgungsnetzwerks
DE102011082504.5 2011-09-12

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WO2013037657A2 true WO2013037657A2 (fr) 2013-03-21
WO2013037657A3 WO2013037657A3 (fr) 2013-06-13

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2017108178A1 (fr) * 2015-12-22 2017-06-29 Giesecke & Devrient Gmbh Dispositif et procédé de transmission de paquets de données
US10515195B2 (en) 2005-06-29 2019-12-24 Blackberry Limited Privilege management and revocation

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Publication number Priority date Publication date Assignee Title
DE102018109046A1 (de) * 2018-04-17 2019-10-17 Innogy Se Absicherung von öffentlichen Stromnetzen durch Micro-Grids

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EP1858221A1 (fr) 2006-05-15 2007-11-21 Abb Research Ltd. Système de pare-feu et de détection d'intrusion

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JP2004280618A (ja) * 2003-03-18 2004-10-07 Hitachi Ltd エネルギー管理システム
WO2008113052A1 (fr) * 2007-03-14 2008-09-18 Zonit Structured Solutions, Llc Prises de courant nema intelligentes et réseaux associés
JP2011155323A (ja) * 2010-01-25 2011-08-11 Sony Corp 電子透かし生成装置、電子透かし検証装置、電子透かし生成方法及び電子透かし検証方法
DE102010017935A1 (de) * 2010-04-22 2011-10-27 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Stabilisierung eines Strombezuges

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Publication number Priority date Publication date Assignee Title
EP1858221A1 (fr) 2006-05-15 2007-11-21 Abb Research Ltd. Système de pare-feu et de détection d'intrusion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10515195B2 (en) 2005-06-29 2019-12-24 Blackberry Limited Privilege management and revocation
WO2017108178A1 (fr) * 2015-12-22 2017-06-29 Giesecke & Devrient Gmbh Dispositif et procédé de transmission de paquets de données
AU2016374990B2 (en) * 2015-12-22 2020-01-16 Secunet Security Networks Aktiengesellschaft Apparatus and method for forwarding data packets

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DE102011082504A1 (de) 2013-03-14

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