EP2539985A2 - Vorrichtung und verfahren zur stabilisierung eines strombezuges - Google Patents
Vorrichtung und verfahren zur stabilisierung eines strombezugesInfo
- Publication number
- EP2539985A2 EP2539985A2 EP11709895A EP11709895A EP2539985A2 EP 2539985 A2 EP2539985 A2 EP 2539985A2 EP 11709895 A EP11709895 A EP 11709895A EP 11709895 A EP11709895 A EP 11709895A EP 2539985 A2 EP2539985 A2 EP 2539985A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- subscriber
- power
- current reference
- distribution network
- control messages
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/14—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network the power network being locally controlled, e.g. home energy management systems [HEMS]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
- H02J13/1331—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network using wireless data transmission
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/18—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers
- H02J13/333—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the remotely-controlled equipment, e.g. converters or transformers the equipment forming part of substations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
- H02J3/001—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies
- H02J3/0012—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies characterised by the contingency detection means in AC networks, e.g. using phasor measurement units [PMU], synchrophasors or contingency analysis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/12—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load
- H02J3/14—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load by switching loads on to, or off from, the networks, e.g. progressively balanced loading
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
- H02J2105/10—Local stationary networks having a local or delimited stationary reach
- H02J2105/12—Local stationary networks having a local or delimited stationary reach supplying households or buildings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Definitions
- the invention relates to a device and a method for stabilizing a current reference from a power distribution network.
- a plurality of different subscribers can be connected to a power distribution network, each having a plurality of power consumption units.
- participants may be to households which have a variety of home appliances, such as washing m ⁇ NEN, refrigerators or the like.
- subscribers can also include production plants that use machines that require electricity in the manufacture of products.
- various power generation facilities and power generators may be connected, in particular works of force, but also photovoltaic systems and wind turbines.
- electricity is also fed through decentralized power generators into the grid, for example, by a mounted on a roof of a subscriber photovoltaic system. To save energy, devices or machines are increasingly being controlled by subscribers.
- the control of these subscriber devices can be done centrally by a control system of the electricity provider or decentralized at the participants, for example by an intelligent control that controls or regulates existing household appliances in ei ⁇ nem household.
- the lighting in a building can be adjusted by a control provided there to the existing ambient ⁇ brightness by appropriate control or regulation of lighting devices.
- Washing machine be activated by an existing at the subscriber local control when the available power in the power grid or the available Energy can be obtained by the participant on favorable terms.
- Both the remote control by a remote central control of the electricity provider and the local control at the subscriber are based on a networked data transmission system.
- Such control systems that can be implemented in a variety under ⁇ etzlich participants, the risk of attacks by third parties are increasingly exposed. Examples play as there is a risk that it ge ⁇ lingt an attacker to bring a large number of controls of various participants under its control and to destabilize by a targeted attack, the electricity distribution network.
- an attacker can here a plurality of local or remote controlled devices Toggle the same time and from ⁇ switch to induce current consumption fluctuations in this manner, which destabilize the power distribution network. Due to the destabilization of the power grid, power failures may possibly be caused in the power distribution network.
- Such unstable system state of the power distribution network can also be caused by an unstable inadvertent control behavior of Ge ⁇ entire system by a planned attack by third parties but. One reason for this may be an implementation error of existing control software or an error in the control algorithm used.
- the invention provides a device for stabilizing a current reference from a power distribution network by at least one subscriber who is connected via a power connection to the power distribution network, wherein a Strombezuganomalie is detected when receiving electricity by the respective participants from the power distribution network based on transmitted control messages that are intended for each participant or come from the respective participants, and wherein after detecting a Stromobzugsanomalie power consumption units are accordingly angesteu ⁇ ert.
- a plurality of power consumption units of the respective subscriber are connected via a gateway and the power connection of the subscriber to a distribution station of the power distribution network provided for the subscriber.
- This distribution station is, for example, a transformer station of the electricity distribution network.
- the Strombezuganomalie a subscriber is detected by a Strombezugsanomalieerkennungsaku, which is provided in the Ga ⁇ teway of each participant, provided for the respective participant distribution station or in a server of an electricity supplier.
- a Strombezugsanomalieerkennungsaku which is provided in the Ga ⁇ teway of each participant, provided for the respective participant distribution station or in a server of an electricity supplier.
- at least a part of the power consumption of the subscriber units and / or further subscriber is added or a normal operation mode to a limited operation mode completely deactivated after the detection of a current reference discrepancy in a part ⁇ participants.
- a power consumption Determined ⁇ averaging unit is provided for the respective subscriber, which determines the power consumed by the power consumption of the respective subscriber units stream continuously or on demand, and reports to the electricity-anomaly detection unit of the respective participant.
- the current reference anomaly detection unit detects a current reference anomaly on the basis of control messages which are sent by the subscriber's gateway or received by the subscriber's gateway.
- control messages are transmitted via the subscriber's power connection or via a separate data network.
- the current reference anomaly detection unit of a part ⁇ taker detects a current reference anomaly by comparing the transmitted control messages having predetermined attack patterns or with historically recorded data.
- the current reference anomaly detection unit of a part ⁇ taker detects a power anomaly with respect thereto, that the transmitted control messages meet at least a configurable detection ⁇ rule for recognizing a current reference anomaly.
- the current reference anomaly detection unit takes for detecting a current reference anomaly, one or more additional ⁇ inspections, in particular
- control messages of the gateway are transmitted by means of a predetermined data transmission protocol and have a predetermined data format.
- control messages comprise data packets which comprise management data and user data,
- the Strombezuganomalieerkennungsech recognizes a Strombe ⁇ zugsanomalie based on conspicuous management data and / or conspicuous payload data of the transmitted control messages.
- the Strombezuganomalieerkennungsaku detects a ⁇ attack destabilization of Stromverteilnetzes based on the control messages and reports a type and location of each attack to a server infrastructure operator of each Stromverteilnetzes.
- a local Stromobzugsanomalieerkennungsaku which is provided in the gateway of a subscriber, predetermined attack pattern for detecting Strombezuganomalien from a database or receives predetermined attack pattern for detecting Strombezugsanomalien in a Annd horrus.
- the invention further provides a method for stabilizing an electricity purchases from a power distribution network with the given in Pa ⁇ tent pipe 15 characteristics.
- the invention provides a method for stabilizing a current reference from a power distribution network
- a current reference anomaly is detected upon receipt of power by at least one subscriber from the power distribution network by analyzing transmitted control messages destined for the respective subscriber or originating from the respective subscriber, and
- the invention further provides a control program for carrying out such a method for stabilizing a current reference from a power distribution network.
- the invention further provides a data carrier which stores such a control program.
- FIG. 1 is a diagram for explaining a system in which the stabilization device according to the invention is used to stabilize a current reference from a current distribution network;
- Fig. 2 is a block diagram illustrating a possible
- Embodiment of the invention Sys tems ⁇ for stabilizing an electricity purchases
- Fig. 3 is a block diagram illustrating a possible
- Embodiment of the invention Sys tems ⁇ for stabilizing an electricity purchases; 4 shows a block diagram to illustrate an exemplary embodiment of a device according to the invention for stabilizing a current reference from a power distribution network; 5A-5F are signal diagrams for explaining thejanswei ⁇ se of the device according to the invention and the inventive method for stabilizing a current reference from a power distribution network.
- a system 1 in which the device according to the invention can be used to stabilize a current reference has at least one
- Power distribution network 2 in which power is fed by one or more power generators 3 of an electricity supplier.
- the power generator 3 is, for example, a power plant, a wind power plant or a photovoltaic plant.
- a server 4 of the respective electricity provider or infrastructure manager can be connected to the power distribution network 2.
- two subscribers 5 - 1, 5 - 2 are connected to the power distribution network 2 via a distribution station 6.
- the power distribution station 6 may be, for example, a transformer station.
- the two participants 5-1, 5- 2 is, for example, households with meh ⁇ eral power consumption units or production facilities with energy consuming machines for the production of products.
- an alternating current or an AC voltage AC is provided for the various subscribers 5-1, 5-2.
- an alternating current or an AC voltage AC is provided for the various subscribers 5-1, 5-2.
- a DC or DC voltage DC for the various participants 5-1, 5-2.
- the subscribers 5-1, 5-2 are connected to the power distribution station 6 via a subscriber power connection and an associated power connection line 7-1, 7-2.
- the power distribution station 6 is in turn connected via a line 8 to the power distribution network 2.
- a voltage transformer may be provided, which transforms a high-voltage alternating voltage into a low alternating voltage with a lower voltage amplitude, wel ⁇ che the consumption units of the participants 5-1, 5-2 is provided.
- a device for stabilizing a current reference from the power distribution network 2 may be provided.
- a current reference anomaly is detected when current is drawn by the respective subscriber 5-i from the power distribution network 2 on the basis of transmitted control messages which are intended for the respective subscriber 5-i or originate from the respective subscriber 5-i.
- control messages may be, for example switching commands or information on electricity purchases (available power, price information, current performance ⁇ recording), which are used for a switching function.
- At least a portion of the subscriber's or other subscriber's power consumption units is transitioned from a normal operating mode to a restricted operating mode or fully disabled.
- more locally provided power consumption units, such as household appliances, of the respective sub ⁇ taker are 5-i via a gateway and the current terminal of the part ⁇ taker 5-i via the associated power supply line 7-i to the subscriber 5- i provided distribution station 6 of the power distribution network 2 connected.
- a Strombezugsanomalie at a sectionneh ⁇ mer 5-i by a Strombezugsanomalieerkennungsech he ⁇ known which is provided in the gateway of the respective subscriber 5-i.
- a power reference anomaly of a subscriber is detected by a power reference abnormality detection unit provided in the respective dispatch station 6 of the subscriber 5-i.
- the Strombezugsanomalieerkennungs- unit of the subscriber 5-i is located in the server 4 of the electricity provider ⁇ ters.
- a power consumption determination unit is provided for each subscriber 5-i.
- This power consumption determining unit is beispielswei ⁇ se at the gateway of the respective subscriber 5-i.
- the Stromméser- determines the 5-i consumed by the power consumption units of the respective subscriber current kontinuier ⁇ Lich averaging unit of the respective participant 5-i and reports the determined or measured power consumption of the associated electricity-anomaly detection unit of the respective participant 5-i .
- the power consumption detecting unit detects the power consumption of a part ⁇ taker 5-i if required or when receiving a corresponding input command, for example via a user interface parts.
- the current consumption acquiring unit receives the corresponding command for determining the spent stream, it reports the consumed current of the subscriber 5-i to the associated current reference anomaly detection unit of the subscriber jeweili ⁇ gen 5-i.
- the current reference anomaly detection unit of a subscriber 5- i recognizes the current reference anomaly of a subscriber based on control messages sent from the gateway of the subscriber are received, or 5- i ⁇ gene by the gateway of the subscriber 5-i. These control messages are transmitted in a possible embodiment via the power connection of the subscriber 5-i and the power connection line 7-i of the respective subscriber 5-i.
- control messages sent by the subscriber's 5-i gateway or received by the subscriber's 5-i gateway are transmitted over a separate data network, for example via the Internet.
- This attack patterns and recorded data can be located in a data store that is locally ver ⁇ connected to the electricity supply abnormality detection unit.
- the data store is, for example, a hard disk.
- one or more configurable detection rules for detecting a current reference anomaly may be stored in the data memory of the subscriber 5-i.
- the current reference anomaly detection unit of a subscriber 5- i detects a current reference anomaly in which participants that the data sent from the gateway of the subscriber or specific to the gate ⁇ way of the subscriber control messages meet at least one of the stored configurable detection rules for detecting a current reference anomaly.
- control messages of a gateway of a subscriber 5-i are transmitted by means of a predetermined data transmission protocol and have a predetermined data format. These control messages may, for example, be data packets that have administration data (headers) and user data (payload).
- the power reference anomaly detection unit of a subscriber 5-i detects a power reference anomaly by way of more conspicuous ones
- the power draw anomaly detection unit detects a power reference anomaly. Hand conspicuous user data of the transmitted data packets or control messages.
- a power reference abnormality detection unit of a subscriber 5-i detects an attack to destabilize the power distribution network 2 based on the control messages originating from the subscriber's 5-i gateway or received from the subscriber's 5-i gateway and reporting a type and / or a location of the respective attack on the server 4 of the infrastructure manager of the
- the Strombezugs- anomaly detection unit reports the detection of an attack to destabilize the Stromverteilozoes the address of the gate ⁇ ways of each participant 5-i to the server 4 of the infrastructure manager.
- the Strombezugsanoma- lue recognition unit is provided locally in the gateway of the subscriber.
- the detection of a Strombezuganomalie carried out by comparison with known attack patterns these attack patterns are in a possible embodiment of a database by the Strombezugsanomalieerkennungsaku of the subscriber 5-i forth ⁇ downloaded.
- This database may for example be provided by the infrastructure manager of the power distribution network 2.
- the power reference malfunction detection unit of a subscriber 5-i charges these attack patterns for detecting power reference anomalies from the server 4 of the infrastructure manager.
- the current reference anomaly detection unit obtains such attack pattern for detecting anomalies in a reference current Annd Anlagensmodus.
- Fig. 2 shows an embodiment of the system 1 according to the invention for stabilizing a current reference from a power distribution network.
- Both subscribers 5-1, 5-2 which may, for example, be households of private customers, can be supplied with power via a subscriber gateway 9-1, 9-2 via the respective power consumption units 10, 11.
- each private household 5-1, 5-2 has two power consumption units 10-1, 11-1 and 10-2, 11-2, respectively.
- the power consumption units 10, 11 is, for example, domestic appliances such as Washing machines ⁇ machines or lighting devices.
- the two gateways 9-1, 9-2 of the two subscribers 5-1, 5-2 are, as shown in FIG. 2, connected via current reference lines 7-1, 7-2 to the power distribution station 6, for example a transformer station, which in turn is connected via a line 8 to the power distribution network 2.
- the power distribution station 6 for example a transformer station, which in turn is connected via a line 8 to the power distribution network 2.
- a device according to the invention 12-1 for stabilizing a current reference from the power distribution ⁇ network 2 is provided by the participants 5-1 at the gateway 9-1 of the first participant 5-1.
- the device 12-1 can detect a Strombezuganomalie when receiving power through the subscriber 5-1 from the power distribution network 2 via the Stromverteilstation 6 based on transmitted control messages that come from the associated gateway 9-1 of the subscriber 5-1 or from the Gateway 9-1 of the subscriber 5-1 are received or intended.
- a Strombezugsanomalie power consumption units or power reference units for stabilizing the power reference by the subscriber 5-i can be controlled accordingly by the device 12-1.
- the consumption units of the respective subscriber that is, in the illustrated example of the subscriber 5-1, are driven locally by the device 5-1 for stabilizing the current reference.
- the Stromdesein ⁇ units 10-1, 11-1 of the subscriber 5-1 can be driven by the associated device 12-1 via control lines 13 locally.
- the disconnection of power consumption units 10, 11, for example of household appliances is carried th, initially the less important for the subscriber power consumption units are switched off in accordance with a configurable configuration list.
- the device 12 may be provided for stabilizing a current reference from the power distribution network in a possible embodiment of the respective gateway 9-i of the respective subscriber 5-i.
- the device 12 may be provided for stabilizing a current reference from the power distribution network in a possible embodiment of the respective gateway 9-i of the respective subscriber 5-i.
- the subscriber 5-i has such a stabilizing device 12-i.
- several or all participants 5-i may have a respective stabilization device 12.
- a device for stabilizing a current reference 12-1 is provided at the subscriber 5-1. Additionally or alternatively, such a stabilization device can also be used in the
- the stabilization device provided in the distribution station 6 includes a power consumption determination unit 14A that continuously or as needed determines the power consumed by the power consumption units of the subscribers 5-1, 5-2 and a power reference abnormality detection unit 14B reports.
- the current reference anomaly detection unit detects 14B the stabilizing device 14 within the distribution station 6, a current reference anomaly is caused by one or at ⁇ de subscriber 5-1, 5-2 based on control messages exchanged between the distribution station 6 and the Power distribution network 2 are transmitted via the line 8.
- the current reference abnormality detection unit 14B in the power distribution station 6 may use the reported total power consumption amount of the two subscribers 5-1, 5-2, which is notified by the power consumption determination unit 14A, to detect a power reference anomaly.
- a current reference anomaly or attack in the exemplary embodiment illustrated in FIG.
- the current reference malfunction detection unit 14B can actuate a switching unit 14C which switches corresponding switches 15-1, 15-2 via which the power supply lines 7-1, 7-2 are connected to the distribution station 6. Recognizes, for example, the electricity-anomaly detection unit 14B of the distribution station 6 an attack or a current reference anomaly, it may include one or both of the switches 15-1, 15-2 loading, operating to stabilize the power distribution network 2 at a Moegli ⁇ chen embodiment.
- the gateway 9-2 of the subscriber 5-2 has been infiltrated by an attacker, it is possible for the attacker to periodically activate and deactivate power consumption units or loads in the household of the subscriber 5-2.
- power consumption determination unit 14A determines beispielswei ⁇ se regularly the power consumption of the two participants 5-1, 5-2 and shares the measured power consumption of the electricity purchase anomaly detection unit 14B.
- the Strombezuganomalieer- recognition unit 14B can, for example, on the basis of a Signa ⁇ tur Scheme in which attack patterns are stored, recognize that due to the transmitted control messages at the participant 5-2 an attack or an Implement istsfeh- 1er or a virus attack exists.
- the current reference anomaly detection unit 14B controls the switching input ⁇ standardized 14C accordingly, which then opens the switch 15-2 to the subscriber 5-2 to minimize felnetz in this way the effects of the attack or of the implementation error on the overall.
- the distribution station 6 additionally has a communication unit 16, via which the distribution station 6 communicates with the gateways 9-1, 9-2 of the subscribers connected thereto. mer 5-1, 5-2 communicates. The communication can take place via a separate data network or via Powerline Communication PLC.
- Fig. 3 shows a further embodiment for explaining the device according to the invention for power reference stabilization in a power distribution network. In the embodiment shown in FIG.
- both subscribers 5-1, 5-2 have a corresponding device 12-1, 12-2 for stabilizing a current reference from the power distribution network 2.
- a device 14 for stabilizing a power reference If, in the example shown in Fig. 3 embodiment, detected for example by a current reference anomaly detection unit of the apparatus 12-1 at the gateway of the subscriber 9-1 5-1 a current reference anomaly at the subscriber 5-1, can the detected Strombe ⁇ zugsanomalie the subscriber 5-1 are transmitted via the Stroman gleichlei ⁇ tung 7-1 the subscriber's 5-1 or a separate data network to an analysis module of Stromverteilstation 6, for example with respect to the power anomaly detection means 14B.
- the current reference anomaly detected by a subscriber 5-i can thus lead, in addition to the power consumption units of the respective subscriber 5-i, additionally, power consumption units of other subscribers 5-i which are connected to the same distribution station 6 to stabilize the power supply unit.
- network 2 disabled or limited.
- the various ⁇ nen devices or power consumption units 10, 11 can be controlled differently locally according to their configured prioritization or by their type.
- As Exampless- safety-critical devices or power ⁇ consumption units to illuminate a building facade or air conditioning can not be completely disabled while si ⁇ cherheitskritician power consumption units, such example ⁇ , a home lighting, not be disabled or in a limited operation mode, such as emergency lighting be offset.
- a refrigerator may also regulate a predetermined temperature at which it consumes less power.
- the stabilization device 12-1 is located at the home gateway 9-1 of a subscriber 5-1, which is connected directly to the power distribution network 2 via a power supply line 7-1. In the embodiment shown in Fig. 4 thus no power distribution station 6 is provided.
- the current stabilization device 12-1 provided at the gateway 9-1 of the subscriber 5-1 includes an integrated power consumption determination unit 12A-1 which continuously or as needed consumes the power consumed by the power consumption units 10-1, 11-1 of the subscriber 5-1 determined and reported to a power consumption abnormality detection unit 12B-1 of the subscriber 5-1. This controls via a switching unit 12C-1 the
- the Loka ⁇ le power consumption anomaly detection unit 12B-1 is further connected to a data memory 12D-1.
- the current reference abnormality detection unit 12A-1 detects a current reference abnormality when current is drawn by the subscriber 5-1 from the power distribution network 2 based on control messages to be transmitted designated for the subscriber 5-1 or the respective one Participants 5-2 come.
- a Stromongs- anomaly detection unit 12b-1 of the part ⁇ taker 5-1 can by means of the switching input ⁇ standardized 12C-1, the current consumption units 10-1, 11-1 are controlled accordingly, for example by sockets of the respective current consumption units 10- 1, 11- 1 are driven accordingly.
- the Strombezugsano- takes malieerkennungsaku 12A-1 for detecting an abnormality in electricity purchase the respective subscriber, one or more white ⁇ tere inspections.
- the power consumption abnormality detection unit 12B-1 checks the amount of electricity received from the power distribution network 2 by the subscriber 5-1 via the power connection 7-1 or the amount of power fed into the power distribution network 2. For example, a plausibility check of the injected or emitted amount of current can be carried out, for example, to detect a cyclical switching on or off of power consumption units 10, 11.
- the power reference abnormality detection unit 12B-1 additionally checks integrity of the respective gateway 9-1 of the subscriber 5-1. This integrity check can be performed, for example, by using Trusted Platform Modules (TPM) or External
- Smart cards which may also contain user data, take place.
- the power consumption abnormality detection unit 12B-1 of the subscriber 5-1 provided at the gateway 9-1 of the subscriber 5-1 detects the power reference anomaly based on attack patterns locally stored in the memory 12D-1.
- these attack patterns for the detection of current reference anomalies can be loaded from a database of the server 4 or be configured in another operating mode.
- the power consumption anomaly detection unit 12B-1 additionally carries out a
- the power reference abnormality detection unit 12B-1 may in one possible embodiment itself set to a safe operation mode in which the impact possibilities on power consumption units of the subscriber are restricted or inhibited.
- the current reference abnormality detection unit 12B-1 for detecting an unstable system behavior or attack to locally connected smart power consumption units 10-1, 11-1 of the subscriber 5-1 may send messages indicating the attack unstable system behavior reports these smart power consumption units 10-1, 11-1.
- the stabilization device 12-1 for stabilizing the current reference exercises a watchdog function with regard to the energy consumption and a protective function against attacks.
- the power consumption units that are deactivated by the power consumption stabilizing device 12-1 may, in one possible embodiment manually or by the device 12-1 automatically reactivated, for example, by a manual Inter ⁇ action of the subscriber or user or after a predetermined period of time.
- attack messages are also sent periodically and integrity-protected to a communication unit of a power distribution station 6 or to locally connected power consumption units 10-1, 11-1.
- the power consumption calculation unit 12A-1 may determine the power consumption of the respective subscriber 5-1 kontinuier ⁇ Lich or on demand. In one possible embodiment, the determined power consumption of a communication unit 16 of the power distribution station 6 can be reported.
- the configuration of the stabilization device 12-1 with attack patterns for detection of current reference anomalies can be carried out remotely in one possible embodiment.
- an individual adjustment to a specific household or to a specific subscriber can take place locally.
- FIGS. 5A, 5B, 5C, 5D, 5E, 5F show examples of explanations out the method according to the invention and the invention shown SEN device for stabilization of a current reference from a current distribution network.
- FIGS. 5A-5F show examples of a communication between a subscriber 5-i and a power distribution station 6, for example via the power connection lines 7-i or a separate data network.
- control messages of the distribution station 6, which are transmitted to a subscriber 5-i within a certain period of time are displayed.
- the control units are messages which indicate to the subscriber 5-i a current electricity price P of an electricity provider.
- the subscriber 5-i within a constantly fluctuating electricity prices which fluctuate between a price PI and a price PO, so that this can lead to a continuous switching on or off of the device 5-i in the case of the subscriber 5-i.
- the stabilization device 12-i provided at the subscriber 5-i can detect a corresponding attack and correspondingly control the power consumption units, for example deactivate them.
- a corresponding error message can be transmitted to a server 4 of the power operator.
- a household appliance parked at the subscriber 5-i namely the household appliance G1 as a power consumption unit 10, 11, is constantly switched on or off. If such an attack pattern is detected, for example, the corresponding household appliance G1 or the corresponding power consumption unit can be set over a restricted operating mode or completely deactivated. Another possibility is to inform the affected device to ignore the corresponding control command.
- Fig. 5C shows another example of a possible attack.
- the attack illustrated in FIG. 5C is a so-called denial-of-service attack in which the distribution station 6 transmits a large number of control commands or control messages to a gateway 9-1 of a subscriber 5-i within a specific period of time sends to block the ent ⁇ speaking gateway 9-1. For example, within a few milliseconds, a few thousand control messages are generated by the attack and sent to the gateway 9-1 of the subscriber 5-i.
- Fig. 5D shows another example of an attack pattern against which a potential attack can be detected.
- a subscriber 5-i transmits At within a relatively short period of time
- control messages to a distribution station 6 or to a server to achieve an appropriate congestion or congestion.
- FIG. 5E shows another example for detecting a possible attack pattern.
- the distribution station 6 transmits two control commands, for example switch-on commands to a destination address of a device at the subscriber 5-i with different source addresses SRC, which are, for example, IP addresses.
- SRC source addresses
- IP1 IP1
- the other source address is in a fal ⁇ rule invalid address range IP2.
- the second control message CTRL can be ignored by the per subscriber ⁇ schreib 5-i or blocked with the source address IP2.
- the fiction, modern ⁇ device 12, a firewall functionality out ⁇ clearly a control command or a control message sawn riding.
- the subscriber 5-i receives control messages from the power distribution station 6 with different receive addresses DA (destruction address) to different devices Gl, G2 of the subscriber 5-i.
- the control command for the second power consumption unit G2 a power consumption unit of Operaneh ⁇ mers 5-i concern, which is safety-critical and therefore must not be controlled externally.
- the device 12 according to the invention can block the corresponding control command for the safety-critical device G2.
- a corresponding message can be generated, which reports the possibly detected attack.
- the monitoring of the control message or of the network traffic can take place by means of comparison with known attack signatures for checking on the basis of historical data.
- the method according to the invention reduces the susceptibility of the power network 2 to malfunctions or attacks.
- a reliable operation of the smart grid or the power ⁇ network 2 is ensured, even if it comes through attacks or unforeseen system behavior to an unstable operation.
- the stabilization process of the invention redu ⁇ also adorns collateral damage that can be caused by power outages.
- effects of a local power procurement problem remain localized.
- FAL le of an attack or a previous system behavior are preferably only participants who may infi ⁇ sheet, separated from the power supply 2 and placed in an emergency operating mode.
- a current reference sequence is detected when current is drawn through at least one subscriber from the power distribution network 2 by analyzing transmitted control messages which are intended for the respective subscriber 5-i or originate from the respective subscriber. After detection of a Strombezuganomalie at a participant 5-i power consumption units of the subscriber and / or other participants 5-i are controlled to stabilize the power reference.
- the inventive method is preferably carried out in real time by a corresponding control program.
- This control program can be stored in a possible embodiment in a program memory.
- detected or possible attacks are logged with ⁇ and stored in a log memory.
- recognized conspicuous control messages or control data packets are blocked or reformatted so that they can no longer cause destabilization of the power distribution network.
- the Strombezugsanoma- recognition unit recognizes a Stromobzugsanomalie auflig ⁇ liger administration data of the control messages or Steuerda tendene.
- the power reference anomaly detection unit detects a power reference anomaly based on conspicuous payload data of the transmitted control messages or control data packets.
- Reformatting a aufbib- time control message may for example be that oscillating reformatted data values within the payload of the control message to a mean value or vice ⁇ be calculated. Oscillates, for example, the Preisinformati ⁇ on between a price PO and PI to effect a permanent switching on or off of power consumption contents 10, 11, the user data of the respective control messages may be overwritten with a mean value or with a predetermined value for identifying that the corresponding Control message is to be ignored.
- the Strombezuganomalieerkennungsech can if they recognize ei ⁇ NEN attack destabilization of Stromverteilnetzes 2 based on the control message, a type and a location of each attack to the server 4 of the nostibetrei- bers of Stromverteilnetzes 2 report. Furthermore, the conspicuous control messages can be redirected to the server 4 of the infrastructure manager, so that he can make a detailed analysis.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010017935 DE102010017935A1 (de) | 2010-04-22 | 2010-04-22 | Vorrichtung und Verfahren zur Stabilisierung eines Strombezuges |
| PCT/EP2011/053416 WO2011131413A2 (de) | 2010-04-22 | 2011-03-08 | Vorrichtung und verfahren zur stabilisierung eines strombezuges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2539985A2 true EP2539985A2 (de) | 2013-01-02 |
Family
ID=44625497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| EP11709895A Withdrawn EP2539985A2 (de) | 2010-04-22 | 2011-03-08 | Vorrichtung und verfahren zur stabilisierung eines strombezuges |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20130162038A1 (de) |
| EP (1) | EP2539985A2 (de) |
| CN (1) | CN102844953B (de) |
| BR (1) | BR112012027085A2 (de) |
| DE (1) | DE102010017935A1 (de) |
| RU (1) | RU2012149747A (de) |
| WO (1) | WO2011131413A2 (de) |
| ZA (1) | ZA201207551B (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8897923B2 (en) * | 2007-12-19 | 2014-11-25 | Aclara Technologies Llc | Achieving energy demand response using price signals and a load control transponder |
| DE102011082504A1 (de) * | 2011-09-12 | 2013-03-14 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Stabilisieren eines Energieversorgungsnetzwerks |
| US9769074B2 (en) | 2013-03-15 | 2017-09-19 | International Business Machines Corporation | Network per-flow rate limiting |
| US9609086B2 (en) | 2013-03-15 | 2017-03-28 | International Business Machines Corporation | Virtual machine mobility using OpenFlow |
| US9444748B2 (en) | 2013-03-15 | 2016-09-13 | International Business Machines Corporation | Scalable flow and congestion control with OpenFlow |
| US9407560B2 (en) * | 2013-03-15 | 2016-08-02 | International Business Machines Corporation | Software defined network-based load balancing for physical and virtual networks |
| US9596192B2 (en) | 2013-03-15 | 2017-03-14 | International Business Machines Corporation | Reliable link layer for control links between network controllers and switches |
| EP2879270B1 (de) | 2013-04-17 | 2016-09-21 | Huawei Technologies Co., Ltd. | Identifikationsschaltung einer stromversorgung und stromgetriebene vorrichtung |
| DE102016205289A1 (de) | 2016-03-31 | 2017-10-05 | Siemens Aktiengesellschaft | Verfahren, Prozessor und Gerät zur Integritätsprüfung von Nutzerdaten |
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| US20060017324A1 (en) * | 2004-07-21 | 2006-01-26 | Advanced Powerline Technologies, Inc. | Communications network using installed electrical power lines |
| WO2010009502A1 (en) * | 2008-07-21 | 2010-01-28 | Dius Computing Pty Ltd | An authentication system for a plug-in electric drive vehicle |
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| DE4334488C2 (de) * | 1993-10-09 | 1996-06-20 | Priesemuth W | Verfahren und Vorrichtung zur Reduzierung der Spitzenbelastung elektrischer Energienetze und Energieerzeuger |
| JPH07146788A (ja) * | 1993-11-22 | 1995-06-06 | Fujitsu Ltd | ウイルス診断機構の作成システムと作成方法並びにウイルス診断機構と診断方法 |
| GB2361118B (en) * | 2000-04-07 | 2002-05-29 | Responsiveload Ltd | Responsive load system |
| SE524152C2 (sv) * | 2001-01-16 | 2004-07-06 | Combitech Systems Ab | Metod, system och mätenhet för styrning och övervakning av elektrisk utrustning |
| US6745106B2 (en) * | 2001-09-04 | 2004-06-01 | Emware, Inc. | Tone generating electronic device with paging module for verification of energy curtailment |
| US20030063723A1 (en) * | 2001-09-28 | 2003-04-03 | Derek Booth | Interactive system for managing and remotely connecting customer utility loads |
| ITAN20010050A1 (it) * | 2001-11-23 | 2003-05-23 | Wrap Spa | Metodo e sistema per il monitoraggio di utenze elettriche |
| US6920028B2 (en) * | 2002-12-30 | 2005-07-19 | Schweitzer Engineering Laboratories, Inc. | Digital protective relay for power systems with operator-initiated record keeping capability |
| FR2904486B1 (fr) * | 2006-07-31 | 2010-02-19 | Jean Marc Oury | Procede et systeme de gestion et de modulation en temps reel de consommation electrique. |
| DK2151032T3 (en) * | 2007-06-07 | 2016-12-05 | Siemens Ag | Method for operation of a device with at least one energy distributor layout |
| DE102008048046A1 (de) * | 2008-09-19 | 2010-04-08 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zum Betreiben eines elektrischen Verbrauchers |
| EP2396761A4 (de) * | 2008-11-14 | 2013-09-25 | Thinkeco Power Inc | System und verfahren zum demokratisieren von kraft zur erzeugung einer meta-börse |
-
2010
- 2010-04-22 DE DE201010017935 patent/DE102010017935A1/de not_active Withdrawn
-
2011
- 2011-03-08 CN CN201180020176.8A patent/CN102844953B/zh not_active Expired - Fee Related
- 2011-03-08 US US13/642,598 patent/US20130162038A1/en not_active Abandoned
- 2011-03-08 BR BR112012027085A patent/BR112012027085A2/pt not_active IP Right Cessation
- 2011-03-08 EP EP11709895A patent/EP2539985A2/de not_active Withdrawn
- 2011-03-08 WO PCT/EP2011/053416 patent/WO2011131413A2/de not_active Ceased
- 2011-03-08 RU RU2012149747/07A patent/RU2012149747A/ru not_active Application Discontinuation
-
2012
- 2012-10-08 ZA ZA2012/07551A patent/ZA201207551B/en unknown
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| US20060017324A1 (en) * | 2004-07-21 | 2006-01-26 | Advanced Powerline Technologies, Inc. | Communications network using installed electrical power lines |
| WO2010009502A1 (en) * | 2008-07-21 | 2010-01-28 | Dius Computing Pty Ltd | An authentication system for a plug-in electric drive vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102844953A (zh) | 2012-12-26 |
| WO2011131413A2 (de) | 2011-10-27 |
| RU2012149747A (ru) | 2014-05-27 |
| WO2011131413A3 (de) | 2012-10-18 |
| ZA201207551B (en) | 2013-06-26 |
| CN102844953B (zh) | 2015-04-08 |
| DE102010017935A1 (de) | 2011-10-27 |
| US20130162038A1 (en) | 2013-06-27 |
| BR112012027085A2 (pt) | 2016-07-26 |
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