[go: up one dir, main page]

EP2845287A1 - Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie - Google Patents

Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie

Info

Publication number
EP2845287A1
EP2845287A1 EP12735831.5A EP12735831A EP2845287A1 EP 2845287 A1 EP2845287 A1 EP 2845287A1 EP 12735831 A EP12735831 A EP 12735831A EP 2845287 A1 EP2845287 A1 EP 2845287A1
Authority
EP
European Patent Office
Prior art keywords
current
node
current value
esp
nodes
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Withdrawn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
EP12735831.5A
Other languages
German (de)
English (en)
Inventor
Stefan LANGEMEYER
Johannes Reinschke
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP2845287A1 publication Critical patent/EP2845287A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • 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
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • 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
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • H02J3/0012—Contingency detection
    • 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
    • H02J3/04—Circuit arrangements for AC mains or AC distribution networks for connecting networks of the same frequency but supplied from different sources
    • H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures

Definitions

  • the invention relates to a method and a device for monitoring an energy supply point of a power supply network, in particular in the low-voltage range.
  • a number of first and second nodes can be connected or connectable to the energy supply point, wherein a respective node is a power generator, an energy consumer or a prosumer.
  • first nodes are those nodes which have communication means and can communicate with a device carrying out the method.
  • Second nodes are those nodes which have no means of communication and therefore can not communicate with the device executing the method.
  • a prosumer is understood to mean a component that can both generate energy and feed it into the energy supply network as well as consume energy and absorb it from the energy supply network.
  • An example of this is, for example, electrically powered motor vehicles, which draw energy from the energy supply network for charging their battery or can feed energy from their storage into the energy supply network at peak load times.
  • a plurality of electrical loads or sources can be connected to the energy supply network.
  • Loads and sources represent nodes in the sense of the invention.
  • several charging stations can be used for such an energy infeed point
  • Electric vehicles and / or photovoltaic systems and / or generators to be connected As a rule, not all nodes simultaneously with maximum power consumption or abgäbe ak- tive, the energy supply point of the power grid is often designed so that the summed, maximum possible power consumption or output (or current consumption or output) of all nodes is greater than the maximum possible or permissible power (or current) on Energyeinspeiseddling.
  • a protective device at the energy supply point eg in the form of a fuse or protection, ensures that the maximum permissible power at the energy supply point can not be exceeded.
  • the protection device triggers at the latest when a predetermined maximum current is exceeded, interrupting the electrical connection of the nodes connected to the energy supply point to the energy supply network.
  • the invention provides a method for monitoring a power feed point of a power grid, wherein a number of first and second nodes are connected or connectable to the power feed point, wherein a respective node is a power generator, an energy consumer or a prosumer.
  • the energy supply network is an energy supply network in the low-voltage range.
  • the voltages for a single-phase and three-phase network vary from country to country. In Germany, the voltage is 230 V for a single-phase network and 400 V for a three-phase network. In other countries, other voltage values are sometimes selected.
  • the following steps are carried out: a) At the energy infeed point, an actual current representing the current consumption or output is detected by a measuring and monitoring device.
  • a current information obtained from a first node representing an intended and / or a maximum possible current consumption or output of the first node is processed by checking whether a current value of the current information is a predetermined criterion with respect to a possible current value of the current information Energyeinspeiseddlings met.
  • the invention further provides a device for monitoring an energy supply point of a power supply network, in particular in the low-voltage range, wherein a number of first and second nodes is connected or connectable to the energy supply point, wherein a respective
  • Node is an energy producer, an energy consumer or a prosumer.
  • the device comprises a measuring and monitoring device for measuring an actual current representing the current input or output at the energy supply point.
  • a communication device is provided for exchanging data with the first node.
  • a computing unit is used for processing a current information obtained from one of the first nodes, which represents an intended and / or a maximum possible current consumption or output of the first node. It is verifiable by the arithmetic unit, whether a current value of the current information meets a predetermined criterion with respect to a possible current value of the Energyeinspeiseddlings. In this case, the possible current value can be determined by the arithmetic unit by subtraction of the predetermined maximum current of the energy supply point and the actual current.
  • a message can be transmitted to the first node by the communication device, which message confirms or rejects the power consumption or output to the first node.
  • the proposed procedure allows a dynamic adaptation of the maximum power / power consumption or output at the power supply point. As a result, preventive impending overloads, but also bottlenecks can be detected and avoided.
  • the procedure makes use of the fact that in the future some of the electricity purchasers and / or suppliers have the possibility of using a device for energy input. seyak to communicate.
  • the purpose of the communication is merely to confirm or reject the current consumption or output as a function of the current state on the basis of the metrological detection of the actual current that is being carried out on a continuous basis for individual nodes that wish to connect to the energy supply point. This means that the nodes ask at the energy infeed point whether their intended power input or output is possible.
  • the power supply point decides whether the requesting node can electrically connect to the energy infeed point or not.
  • no control of individual nodes takes place through the energy infeed point or the device monitoring the energy infeed point.
  • the nodes merely receive information as to whether and, if so, in what amount they can receive or deliver electricity. To what extent the nodes implement this information is not influenced by the method or the device. As a result, only a small exchange of data between the device and the requesting node is required. This makes it possible, in particular, for such components, which originate from different manufacturers or find themselves in the sphere of different operators, to communicate with one another. Elaborate, proprietary communication protocols are dispensable.
  • the procedure ensures that at least the first nodes can not cause an overload case. At the same time, however, it is possible to get closer to the load limits of the power supply point while reducing the number of overload power cuts.
  • the consideration of the energy drawn or supplied by these second nodes from the energy supply point is implicitly effected by measuring the actual current on the one hand and the knowledge of the first node connected to the energy supply point and the maximum current reference or output known from previous communication ,
  • the criterion is satisfied if the current value of the current information is smaller than the amount of the possible current value. I want the first
  • Node relate current from the energy supply point, so this indicates by means of the current information a current value, which he wants to relate. If this current value is smaller than a difference value determined from the difference between the predetermined maximum current and the actual current, then the first node can electrically connect to the energy supply point without an overload condition occurring.
  • the criterion is not satisfied if the current value of the current information is greater than the amount of the possible current value.
  • the power feed point is already operating close to or at its load limit.
  • the difference value between the predetermined maximum current and the measured actual current is already so small that the reference of a further current, as transmitted by the current value of the current information, would exceed the maximum current at the energy supply point after electrical connection. This would lead to an undesirable overload case.
  • the above-described steps a) to d) are expediently run through separately for each first node that wishes to receive or deliver current. This allows the device implementing the method of the energy supply For each first node, it decides whether or not it can connect to the energy infeed point.
  • the communication between the first node and the device can be restricted to the exchange of only two messages (a request of the first node and a response of the device to the first node).
  • the dynamics of the current reference or the current output by the energy supply point monitoring device can be kept low.
  • the current information is supplied together with an identifier of the first node. This can be done for example in a local memory of the device performing the method. Alternatively, a central memory of the energy supply network could also be used, in which case the information mentioned must be transmitted to a central processing unit of the central storage.
  • the current information comprises either a current value measured by the first node or a current value stored in the first node or information representing the current value, wherein in the latter case a computing unit of the energy supply point can close the information on the current value.
  • Such information could, for example, be a type designation of the node which is directly linked to a connected value.
  • a database may be provided for this purpose in which the connection values of components from different manufacturers are stored. A corresponding information can then be used to determine the regularly occurring during operation power value.
  • the current consumption or Abgabäbe is transmitted a maximum allowable amount of power consumption or Abgäbe, where at the maximum allowable height is less than or equal to the current value contained in the current information.
  • This embodiment allows the device executing the method not only to confirm or reject a requested current value with only "yes” or "no", but also to transmit a current level deviating from the one in the request of the first node as the maximum allowable current value. If, for example, the first node asks for a current of 50 A, the device can transmit a current value of 25 A to the first node as the maximum allowable current. The first node can then decide for itself whether he wants to carry out the removal of electricity in the amount of 25 A or not. Likewise, a factor can be transmitted in response. For example, "0.6" or "1.3" in response to the requested current of 50A means that 30A (ie, 0.6 times) and 65A (ie, 1.3 times ) may be transferred.
  • an electrical connection of the Energyeinspeiseddlings is separated to the power grid when the measured actual current reaches or exceeds the maximum current. This may be the case, for example, if too large a number of second nodes, which do not communicate with the device carrying out the method with respect to a current input or output, are connected to the energy supply point.
  • an overload case can occur if, according to a further embodiment, a message is transmitted to individual or all first nodes to reduce or terminate the power consumption or output when the actual current has reached a current threshold which is less than or equal to the predetermined maximum Maximum current is. Since the first node can automatically decide on such a message, whether it reduces or terminates the power consumption or Abgabäbe, it can come to disregard the request for the mentioned overload case. In one embodiment, it is possible to transmit the above message for reducing or terminating the power consumption or output as a broadcast message to the first nodes. On the other hand, the communication as to whether a node is allowed to connect to the power supply point for power input or output is done individually.
  • the arithmetic unit at a deviation determined above the predetermined barrier replaces the current information associated with the first node with a current information corrected in accordance with the actual current value determined by the arithmetic unit.
  • Such discrepancies can occur, for example, due to the dynamics of the operation of the first node.
  • such discrepancies can also be efficiency-related.
  • the first node may only perform at a much lower efficiency, e.g. due to external circumstances, the actual current consumption or output may deviate from the previously agreed current value. With such a deviation, the device executing the method is monitored and documented in a memory in order to have an exactly available "remaining flow quantity" for further first nodes.
  • the statistically fluctuating current values of the second nodes can be determined. From the statistics of the fluctuating current value and the measured actual current value of all second nodes can be determined which maximum current value can be released for the sum of all first nodes.
  • the current values of all second nodes can be determined from the difference of the actual current value and the current values stored in the memory for all registered first nodes.
  • the maximum current of the energy supply point is predetermined by a higher-level unit of the energy supply network.
  • the device according to the invention has, via the components mentioned above, a protective device by means of which an electrical connection to the energy supply network can be separated if the actual current measured by the measuring device reaches or exceeds the maximum current.
  • the device has further means for
  • FIG. 1 is a schematic representation of a device according to the invention for monitoring a Energyeinspeiserios a power supply network to which a plurality of nodes are connected, and
  • FIG. 2 is a flowchart illustrating the procedure of the method according to the invention.
  • FIG. 1 shows a schematic representation of a device according to the invention for monitoring an energy supply point ESP of a power supply network EVN.
  • the device represents a protection device SG, which can be regarded as a combination of a power monitoring device and a protection switch.
  • the guard SG is arranged between the power supply point ESP and the power supply network EVN.
  • the line between the protective device SG and the power supply point ESP is formed in three phases, which are supplied to the energy supply point ESP nodes KU, K12, K13 and K2, for example, with a voltage of 400 V.
  • the lines connecting the nodes KU, K12, K13, K2 with the protective device SG could be single-phase.
  • the nodes KU, K12, K13, K2 would be supplied with a supply voltage of 230 V, for example.
  • the specified voltage values apply to a low-voltage power supply network in Germany. In other countries, the voltages of a three-phase and a single-phase power supply network are partly chosen differently in a manner known to those skilled in the art.
  • the protective device SG comprises a circuit breaker SV, a communication device KOM, a measuring device ME and a computing unit RE. If in the present description of a circuit breaker SV is mentioned, this can be understood by a controlled switch, but also a fuse or a contactor. Generally come as
  • Circuit breaker such components into consideration, which at a current flowing through the circuit breaker SV current exceeds a predetermined maximum current, disconnect the electrical connection of the Energyeinspeiseddlings to the power supply network EVN.
  • the task of the measuring unit ME is to detect the current flowing through the circuit breaker SV (actual current). This corresponds to the energy input point at the power supply point by current consumption or Abgäbe the nodes KU, K12, K13, K2 flowing stream. If the actual current exceeds the predetermined maximum current, then the circuit breaker SV triggers either independently or disconnects, controlled by the arithmetic unit RE, the connection between the energy supply network EVN and the energy supply point ESP.
  • the communication device KOM is set up to communicate with the first node KU, K12, K13.
  • the first nodes have corresponding communication means (not shown).
  • the node K2 represents, for example, a second node which has no communication means and therefore can not perform the communication described below.
  • the second node K2 could also be designed in such a way that it has communication means which, however, are not suitable for communicating with the communication device KOM of the protection device SG.
  • the communication between the protection device SG and the first node KU, K12, K13 may optionally be circuit-based or wireless.
  • the communication channel is indicated schematically in the figure by L2.
  • the communication between the protection device SG and the first node KU, K12, K13 is based on an open standard, such as a Powerline Communication (PLC), WiFi or ZigBee.
  • PLC Powerline Communication
  • a communication via PLC takes place, in which case the power lines can be used for the transmission of data signals.
  • PLC Powerline Communication
  • the use of an open standard is expedient, since the protection device SG on the one side and the first nodes KU, K12, K13 connected thereto on the other side may belong to different owners or operators, of different types or may be provided by different manufacturers.
  • the protection device SG is operated by the operator of the power supply network EVN or is in its sovereignty.
  • the first and second nodes KU, K12, K13 communicating with the protection device via the communication channel L2 are frequently in the hands of customers of the operator of the energy supply network EVN.
  • the first and second nodes KU, K12, K13, K2 are, for example, either energy producers (for example a photovoltaic system), energy consumers (for example a battery of an electric vehicle to be charged) or a so-called prosumer.
  • a prosumer is a component that consumes energy but can also generate energy and feed it into the power grid.
  • the battery of an electrically operated vehicle can also be used as a source, for example for reducing short-term peak loads.
  • the protection device SG can optionally communicate with a control room (not shown) of the energy supply network EVN.
  • the predetermined maximum current flowing via the energy supply point ESP can be preset or changed via this communication channel LI.
  • the arithmetic unit RE processes the actual current detected by the measuring device ME and the information exchanged in the context of a communication.
  • the sequence of the method for monitoring the energy input point ESP is explained in more detail below with reference to FIG. 2.
  • the procedure assumes that the first nodes KU, K12, K13, which have communication means for exchanging data with the communication device KOM of the protection device SG, at least before their activation, i. Before taking or giving off power, ask the guard SG how much power they can or may transmit.
  • the first nodes KU and K12 as well as the second node K2 are shown by way of example in addition to the protective device SG.
  • the flow of communication takes place in Fig. 2 in chronological order from top to bottom.
  • the first node KU an energy consumer, would like to draw a current of, for example, 50A.
  • the exemplified current value of 50 A is transmitted as current information SI in a message R (SI_K11) to the protection device SG.
  • the current value may correspond to a nominal or maximum current value of the node KU.
  • the current value transmitted to the protection device SG in the message R (SI_K11) can be lower than the nominal or maximum current value, for example because the operation of the first node KU can or should be carried out with this lower current.
  • the protection device SG (ie its arithmetic unit RE) now performs a check as to whether the current value transmitted in the message R (SI_K11) can be released to the first node KU. For this purpose, a difference is first determined from the predetermined maximum current, eg 1000 A, of the energy supply point ESP and the measured actual current at the present time. For example, the actual current current is 800 A, so that until the occurrence of an overload case, a current reference in the amount of 200 A is possible. The release of the current consumption by the first node KU, since the possible current (200 A) is greater than the requested current value (50 A), take place without the overload case occurs.
  • the predetermined maximum current eg 1000 A
  • the actual current current is 800 A, so that until the occurrence of an overload case, a current reference in the amount of 200 A is possible.
  • the requested current of 50 A is released.
  • the release can be done in the simplest variant by a binary information which corresponds to a "yes” or a "no".
  • the maximum current obtainable by the requesting first node KU can be transmitted, in this case 50 A.
  • the setting of a current consumption, SCD1 is effected by the first node KU.
  • the protection device SG stores the current value (50 A) requested by the first node KU or released by the protection device in conjunction with an identifier of the first node KU.
  • the first node K12 for example, would like to obtain current in the amount of 100 A.
  • the current value is transmitted as current information SI of the first node K12 in the detection R (SI_K12) to the protective device SG.
  • SI_K12 current information SI of the first node K12 in the detection R
  • a residual current of 150 A remains until the overload occurs. Since the requested current level is smaller than the difference value of maximum current and actual current, the request of the first node K12 can be granted.
  • Guard SG the requested by the first node K12 or released by the protection device current value (100 A) in conjunction with an identifier of the first node K12. Subsequently, the first node K12 sets a current consumption of 100 A.
  • Information from the requesting first node KU, K12 are transmitted to the protection device SG.
  • a manufacturer and type designation of the first node KU, K12 could be transmitted in the stream information.
  • an assignment of this information to a requested current value for example a rated current, could then take place.
  • the protection device SG checks by analyzing the time course of the actual current, whether the requested by the first node KU, K12 current values are plausible or if there are deviations. In the case of systematic deviations, the protection device can replace the current information assigned to the relevant node by the determined current value. Likewise, correction factors could be used.
  • this means that, for example, the first node K12, which has queried current value of 100 A, actually 80 A current refers. As a result, not only 50 A but also 50 A + 20 A 70 A are actually available as residual current until the overload is reached. Although actually only the current flowing through the power supply point ESP current is determined by the protection device, an assignment to the individual devices is possible, since a sequential communication and connection of individual first node takes place at the Energyeinspeiseddling. For example, the communication or the answer to the request of another first node can only take place if, after a certain grace period, the difference between a requested current level and the actual current reference of the last added node could be determined. In the flowchart of FIG.
  • the second node K2 now goes to the network in the further course and draws a current in a height initially unknown to the protective device SG. It is assumed that the second node is a plurality of smaller loads. These are operated statis- tically. From the difference between that of the
  • the protection device SG measured actual current value and the current information transmitted from the first node, the protection device SG determines the statistically fluctuating current value of all the second node K2. From the statistics of the fluctuating current value and the current actual current value of all non-communicating second nodes, the protection device SG determines which maximum current value it can release for the sum of all communicating loads. For example, the time profile of a fluctuating current value that the current value of the second node varies a maximum of ⁇ 50 A, in a time interval in which the first node can be safely switched off.
  • the current value of the second node is currently, for example, 100 A. This allows the protection device to release up to 850 A current drain or 1050 A backfeed.
  • the additional current reference of the second node K2 causes an imminent overload to be detected, DOTC1. This is done by the evaluation of the actual current value by the protection device SG. Subsequently, the protection device SG transmits a message R1 (RED_K12) targeted to the first node K12 to reduce the power consumption. Since the first nodes KU, K12, K13 are not controlled or regulated by the protection device, the first node KU is free to respond to this request or not.
  • the first node K12 reduces the current consumption by setting a new, lower current reference value SCD2 1 .
  • the second node K2 increases its power consumption.
  • the guard SG registers again an imminent overload, DT0C2.
  • R2 RED_K11
  • R3 (RED_K12) to the first node KU, K12, to reduce the power consumption transmitted. While the first node K12 responds and shuts off, SO, the first node KU does not respond. After the protection SG now has an overload, i. a current of more than 1000 A in the present embodiment, detected (DOC), via the
  • Circuit breaker SV a mains separation, DISC.
  • protection device With the described protection device is the consideration connected that larger loads, such as DC fast charging stations, and sources, such as photovoltaic systems, may only be connected to the power grid EVN, if they have the communication means described. This is to prevent charging stations for electric vehicles with a high power consumption to go online and immediately trigger the circuit breaker SV. This is the case in particular when several charging stations are already active in parallel and the power supply point is loaded with a high current. The same applies in the reverse direction when several energy producers want to feed electricity into the energy supply network via the same energy supply point.
  • the proposed approach allows the maximum power consumption or output of the energy infeed point to be dynamically adjusted.
  • the procedure is advantageous so that the network operator can react preventatively due to overloads or bottlenecks in higher-level subareas of the energy supply network.
  • the protective device can be equipped with a data memory. This can be used for the statistical evaluation of the fluctuating current of non-communicating loads, i. the second node.
  • the memory can be used to detect errors or information about defects
  • the protective device according to the invention makes it possible to go closer to the load limit of the energy distribution network. Likewise, the number of overload-related power shutdowns can be reduced.
  • All components necessary for carrying out the method according to the invention can be integrated in the protective device at the energy infeed point. In this case, a realization with low complexity is possible.
  • the protection device does not directly control the nodes, but only provides them with information regarding the maximum current of a power consumption or Abgäbe.
  • the connected nodes control themselves based on the information received from the protection device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un procédé de surveillance d'un point d'injection d'énergie (ESP) dans un réseau d'alimentation en énergie (EVN), en particulier dans le domaine de la basse tension. Une pluralité de premiers et deuxièmes noeuds (K11, K12, K13, K2) est ou peut être connectée au point d'injection d'énergie (ESP), chaque noeud (K11, K12, K13, K2) étant un producteur d'énergie, un consommateur d'énergie ou un prosommateur. Selon ledit procédé, un système de mesure et de surveillance détecte une intensité réelle représentant le courant prélevé ou fourni au point d'injection d'énergie (ESP). Une information d'intensité (SI) provenant d'un des premiers noeuds (K11, K12, K13) et représentant un prélèvement ou une fourniture de courant prévue et/ou maximale possible du premier noeud (K11, K12, K13) est traitée de manière à vérifier si une valeur de l'information d'intensité (SI) satisfait un critère prédéfini concernant une valeur d'intensité possible (MW) du point d'injection d'énergie (ESP). La valeur d'intensité possible (MW) est déterminée par calcul de la différence entre l'intensité maximale prédéfinie du point d'injection d'énergie (ESP) et l'intensité réelle. Enfin, selon que ledit critère est satisfait ou non au niveau des premiers noeuds (K11, K12, K13), le système émet un message confirmant ou refusant au premier noeud (K11, K12, K13) le prélèvement ou la fourniture de courant.
EP12735831.5A 2012-07-05 2012-07-05 Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie Withdrawn EP2845287A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/063184 WO2014005642A1 (fr) 2012-07-05 2012-07-05 Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie

Publications (1)

Publication Number Publication Date
EP2845287A1 true EP2845287A1 (fr) 2015-03-11

Family

ID=46516711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12735831.5A Withdrawn EP2845287A1 (fr) 2012-07-05 2012-07-05 Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie

Country Status (7)

Country Link
US (1) US20150185750A1 (fr)
EP (1) EP2845287A1 (fr)
CN (1) CN104396110B (fr)
BR (1) BR112014032845A2 (fr)
IN (1) IN2014DN10663A (fr)
RU (1) RU2608181C2 (fr)
WO (1) WO2014005642A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015102441A1 (de) * 2015-02-20 2016-08-25 Alpiq Intec Ag Steuerung einer mit einer Sicherung geschützten Energieübertragung zwischen Energieversorgungsnetz und Endnutzereinrichtungen
US11336662B2 (en) * 2018-11-21 2022-05-17 Abb Schweiz Ag Technologies for detecting abnormal activities in an electric vehicle charging station
CN110098623B (zh) * 2019-04-29 2020-08-25 南京师范大学 一种基于智能负载的Prosumer单元控制方法
DE102019121848A1 (de) * 2019-08-14 2021-02-18 Wobben Properties Gmbh Verfahren zum Betreiben einer Ladestation für Elektrofahrzeuge
DE102019122922A1 (de) * 2019-08-27 2021-03-04 innogy eMobility Solutions GmbH Wechselstrom-Ladestation zum Laden von Elektrofahrzeugen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080140565A1 (en) * 2006-12-07 2008-06-12 Debenedetti Vittorio G Intelligent power port

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464724A (en) * 1981-06-17 1984-08-07 Cyborex Laboratories, Inc. System and method for optimizing power shed/restore operations
RU2133539C1 (ru) * 1993-10-26 1999-07-20 Александров Виктор Федорович Устройство защиты максимального тока
JP3402953B2 (ja) * 1996-09-13 2003-05-06 株式会社東芝 通信方法、通信システムおよび通信装置
US5959471A (en) * 1997-09-25 1999-09-28 Siemens Aktiengesellschaft Method and apparatus for reducing the bias current in a reference voltage circuit
US6915185B2 (en) * 2000-03-24 2005-07-05 Matsushita Electric Industrial Co., Ltd. Power supply system
EP1367689A3 (fr) * 2002-05-31 2008-08-06 Hitachi, Ltd. Système de supervision et méthode d'opération pour information de puissance régionale
US6988024B2 (en) * 2003-08-29 2006-01-17 Matsushita Electric Industrial Co., Ltd. Cogeneration system, operation controller for cogeneration facility, and operation program for cogeneration facility
RU2259022C1 (ru) * 2004-03-10 2005-08-20 Файда Леонид Фимович Способ управления группой электронагревательных устройств
RU2291580C1 (ru) * 2005-07-19 2007-01-10 Илья Вячеславович Коновалов Способ рассылки широковещательных сообщений
JP4158820B2 (ja) * 2006-07-07 2008-10-01 ダイキン工業株式会社 電力量制御装置
US7953519B2 (en) * 2008-10-15 2011-05-31 International Business Machines Corporation Energy usage monitoring and balancing method and system
JP2010119228A (ja) * 2008-11-13 2010-05-27 Mitsubishi Electric Corp 自動変速機の制御装置
EP2325970A3 (fr) * 2009-11-19 2015-01-21 Samsung SDI Co., Ltd. Système de gestion d'énergie et système de stockage d'énergie raccordée au réseau incluant le système de gestion d'énergie
US8832476B2 (en) * 2010-09-28 2014-09-09 Google Inc. Power allotment distribution in a data center
US20120209442A1 (en) * 2011-02-11 2012-08-16 General Electric Company Methods and apparatuses for managing peak loads for a customer location
US20120316688A1 (en) * 2011-06-08 2012-12-13 Alstom Grid Coordinating energy management systems and intelligent electrical distribution grid control systems
US8390252B2 (en) * 2011-09-23 2013-03-05 General Electric Company Charging device, system, and method for controlling a charging device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080140565A1 (en) * 2006-12-07 2008-06-12 Debenedetti Vittorio G Intelligent power port

Also Published As

Publication number Publication date
WO2014005642A1 (fr) 2014-01-09
RU2015103726A (ru) 2016-08-27
IN2014DN10663A (fr) 2015-08-28
CN104396110A (zh) 2015-03-04
BR112014032845A2 (pt) 2017-06-27
RU2608181C2 (ru) 2017-01-17
CN104396110B (zh) 2017-10-27
US20150185750A1 (en) 2015-07-02

Similar Documents

Publication Publication Date Title
EP3048687B1 (fr) Procede de commande d'un reseau de distribution d'energie electrique
EP2435279B1 (fr) Réseau de bord pour un véhicule ainsi que dispositif de commande pour un réseau de bord
WO2019242928A1 (fr) Procédé de configuration d'un système de charge et système de charge pour charger l'accumulateur d'énergie électrique d'un véhicule
EP3566276A1 (fr) Procédé pour faire fonctionner un abonné d'un réseau d'alimentation
DE112012007029T5 (de) Energieversorgungs-Handhabungssystem und Energieversorgungs-Handhabungsverfahren
EP2734400B1 (fr) Station de charge
EP3864743A1 (fr) Dispositif et procédé de décharge d'un condensateur de circuit intermédiaire, convertisseur de courant et véhicule
EP3146605A1 (fr) Procédé permettant de faire fonctionner un réseau de bord d'un véhicule automobile et véhicule automobile
EP2845287A1 (fr) Procédé et dispositif de surveillance d'un point d'injection d'énergie dans un réseau d'alimentation en énergie
EP4052321B1 (fr) Procédé pour charger et/ou décharger un accumulateur d'énergie rechargeable
EP3522324B1 (fr) Procédé et dispositif de gestion de charge des appareils électriques
EP2319153B1 (fr) Procédé et dispositif pour optimiser la gestion de l'énergie
DE102013220609A1 (de) Energieversorgungssystem für ein Bordnetz eines Fahrzeugs
EP3698419A1 (fr) Système de batterie haute tension et procédé de fonctionnement d'un système de batterie haute tension
WO2021069181A1 (fr) Procédé de fonctionnement de système de production d'énergie et système de production d'énergie comprenant ledit procédé
EP3602732A1 (fr) Procédé pour faire fonctionner une installation électrique comprenant une pluralité de consommateurs électriques, unité d'alimentation électrique et installation à fonctionnement électrique
EP4186136A1 (fr) Onduleur à unité de commutation bistable
AT509836A2 (de) Elektronische sicherung
EP4622825A1 (fr) Procédé et système de charge d'un véhicule électrique sur un réseau local d'énergie
WO2019166342A1 (fr) Dispositif de connexion d'un réseau partiel à un réseau à tension alternative et procédé de commande d'une sortie électrique
EP4340160A1 (fr) Dispositif de commande de charge de batterie et procédé de commande de charge de batterie
EP2899829B1 (fr) Dispositif de réglage pour une installation électrique pour la séparation sûre de l'installation électrique d'un réseau d'alimentation en énergie et procédé correspondant
DE102019128199B4 (de) Verfahren für einen Überlastschutz zumindest eines elektrischen Bauteils in einem elektrischen Schaltkreis eines Kraftfahrzeugs sowie Steuergerät für ein Kraftfahrzeug, Kraftfahrzeug und Speichermedium
DE102022209870A1 (de) Verfahren und Verteilungssystem zum Verteilen von elektrischer Energie
WO2020164663A1 (fr) Dispositif et procédé pour la commande de composants dans une branche de réseau

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141205

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 20180208

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180619