EP4690411A1 - Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz - Google Patents
Verfahren zur vermeidung eines stromausfalls in einem elektrischen netzInfo
- Publication number
- EP4690411A1 EP4690411A1 EP24717201.8A EP24717201A EP4690411A1 EP 4690411 A1 EP4690411 A1 EP 4690411A1 EP 24717201 A EP24717201 A EP 24717201A EP 4690411 A1 EP4690411 A1 EP 4690411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- consumers
- sub
- network
- electricity
- 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.)
- Pending
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
- 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
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- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- H02J2105/50—Networks for supplying or distributing electric power characterised by their spatial reach or by the load for selectively controlling the operation of the loads
Definitions
- the invention relates to a method and a device for preventing a power failure in an electrical network, in particular in a sub-network that is connected to a transmission network.
- the electrical energy made available to consumers must always be equal to the electrical energy generated or provided.
- An imbalance results in network instabilities and, in the worst case, can lead to a collapse of the power supply in at least one sub-network.
- the transmission network and the sub-networks connected to it are therefore usually designed for the maximum possible load that can occur in the relevant sub-networks.
- This maximum load is taken into account when planning the network infrastructure and the various components, such as cables, are designed accordingly.
- Overcurrent protection devices are installed to prevent damage to the network infrastructure if the maximum permissible load is exceeded. As soon as the maximum load for which a sub-network is dimensioned is exceeded, the overcurrent protection devices provided automatically disconnect the relevant sub-network from the supply network and thus prevent damage to the network infrastructure.
- the invention therefore provides a method for preventing a power failure in at least one electrical sub-network (TN) which is connected to a transmission network (ÜN) for supplying power to electrical consumers, v, of the sub-network (TN), wherein the electrical consumers, v, of the sub-network (TN) are divided into a number, N, of different groups (G1, G2,...Gi...GN) with different priorities (p1,p2, ...pi...pN), comprising the steps:
- the target currents (lsoll-v) of consumers, v, within a classified group (Gi) are derived from the group target current quantity (IsollGi) of the respective group.
- the following steps are carried out to calculate the target currents (lsoll-v) for the electrical consumers, v, of the divided groups (G1, G2,...Gi...GN) of the sub-network (TN) for each of the divided groups (Gi) of electrical consumers, v, of the sub-network (TN), starting with the group (GN) of electrical consumers with the lowest priority (pN):
- the method after calculating the target currents (Isoll-v) of the consumers v for each of the divided groups (Gi) of electrical consumers, v, of the sub-network (TN), starting with the group (GN) of electrical consumers with the lowest priority (pN) up to reaching the group (G1) of electrical consumers v with the highest priority (p1), the amount of electricity currently consumed by the consumers, v, of the respective group (Gi) is reduced until the group target current amount, Isoll Gi, calculated for the respective group (Gi) is reached.
- an overload that is about to occur within the sub-network (TN) is automatically detected as soon as a currently consumed total amount of electricity, lakt-total, of all consumers, v, of all groups (G1 -GN) of the sub-network (TN) exceeds a predetermined maximum permissible amount of electricity, Imax-TN, of the sub-network (TN).
- the measured currently consumed electrical current quantities, lakt-v, of all consumers, v, of a group (Gi) are summed up to form the group current quantity (I aktGi ) of the group (Gi).
- the currently consumed electrical group current quantities (laktGi) of all divided groups (G1 to GN) of consumers of the sub-grid (TN) are summed up to calculate the currently consumed total current quantity, lakt-total, of the sub-grid (TN).
- the required total reduction amount of electricity, Ired-total, with which the total amount of electricity, lakt-total, currently consumed by all consumers, v, of the sub-network (TN) is to be reduced in order to avoid overload in the sub-network (TN) is calculated as the difference between the total amount of electricity, lakt-total, currently consumed by all consumers, v, of the sub-network (TN) and the specified maximum permissible amount of electricity, Imax-TN, of the sub-network (TN).
- the calculated remaining residual electricity quantity, Iresti after reaching the group (G1) of electrical consumers with the highest priority (p1), is greater than zero (Iresti >0) for each of the divided groups (Gi) of electrical consumers of the sub-network (TN) starting with the group (GN) of electrical consumers with the lowest priority (pN), the following steps (S) are carried out:
- the currently consumed electricity quantity, lakt-v, of each consumer, v, within the respective group (Gi) is physically reduced step by step in a round robin process by a current reduction quantity (delta-iminus) until the group target current quantity (IsollGi) determined for the relevant group (Gi) is reached.
- the electricity consumption of a consumer, v, within the marked group (Gi) is reduced to zero as soon as the electricity consumption of the consumer, v, falls below a minimum electricity quantity, lmin-v, stored for this consumer, v.
- the power consumption of the consumers ,v, of the sub-network (TN) is increased for each of the divided groups (Gi) of electrical consumers ,v, of the sub-network (TN), starting with the group (G1) of electrical consumers with the highest priority (p1) down to the group (GN) with the lowest priority (pN).
- a currently consumed amount of electricity, lakt-v, of each consumer, v, within the respective group (Gi) is increased by an electricity increase amount (Delta-Iplus) in one or more increase steps, provided that this does not exceed the permissible maximum amount of electricity, lmax-v, of the respective consumer, v.
- the consumers, v, of the sub-network (TN) have controllable and/or switchable loads and/or loads that can be connected to charging points of the sub-network (TN).
- the consumers, v, of the sub-grid (TN) comprise permanently installed loads, in particular heat pumps or inverters, and connectable loads, in particular vehicle batteries that can be connected to charging points of the sub-grid (TN).
- a load is dynamically divided into a group (Gi) upon connection to a charging point of the sub-network (TN) depending on at least one provided classification criterion.
- At least some of the electrical consumers, v, of a sub-network (TN) each share their respective permitted
- the invention further provides an electrical sub-network with the features specified in claim 19.
- the invention accordingly creates an electrical sub-network, TN, in particular a charging network, with several electrical consumers, v, and with a controller for carrying out a method for avoiding a power failure in the sub-network, TN, which is connected to a transmission network (ÜN) for supplying power to electrical consumers, v, of the sub-network (TN), wherein the electrical consumers, v, of the sub-network (TN) are divided into a number, N, of different groups (G1, G2,...Gi...GN) with different priorities (p1,p2, ...pi...pN), with the steps:
- ÜN transmission network
- Fig. 1 is a flow chart of a possible embodiment of the method according to the invention.
- Fig. 2 shows an example of a network with two subnetworks to explain the method according to the invention
- Fig. 3. a flow chart illustrating a possible implementation of steps of the method according to the invention.
- Fig. 4. a flow chart illustrating a possible implementation of further steps of the method according to the invention.
- Fig. 5 to 8 Signal diagrams to explain the method according to the invention.
- the invention provides a method for preventing a power failure in at least one electrical sub-network (TN).
- TN electrical sub-network
- An embodiment of the method is shown schematically as a flow chart in Fig. 1.
- a sub-network TN is connected to a transmission network (TS) to supply electricity to electrical consumers, v, of the sub-network (TN).
- the sub-network TN can be, for example, a house network.
- the sub-network TN can also be a network of an industrial plant.
- the consumers v include both DC consumers and AC consumers.
- Fig. 2 shows a simple example with two sub-networks TN-A, TN-B, each of which is connected to a supply network via an electricity meter.
- Each sub-network TN has a maximum permissible current Imax-TN.
- the subnetwork TN-A has five consumers v1 A to v5A.
- the other subnetwork TN-B has eight further consumers v1 B to v8B in the example shown.
- the electrical consumers, v, of the respective sub-network TN are initially divided into a number, N, of different groups (G1, G2,...Gi...GN) with different priorities (p1,p2, ...pi...pN).
- the number N of the divided groups G can vary depending on the application.
- the first sub-network TN-A and the second sub-network TN-B are each divided into three groups with different priorities, as shown in Fig. 2.
- the consumers v1 A, v3A form the group G1 A with the highest priority p1
- the consumers v2A,v4A form the group G2A with the highest priority p2
- the consumer vA5 forms the group G3A with the lowest priority p3.
- the consumers v1 B,v2B,v3B form the group G1 B with the highest priority p 1
- the consumer v4B forms the group G2B with the next higher priority p2
- the consumers v5B,v6B,v7B,v8B the group G3B with the lowest priority p3.
- the groups G can be divided according to a predefined or selectable classification criterion EK.
- One possible classification criterion EK is the type of consumer v and/or its importance for the operation of a system.
- Another classification criterion EK is, for example, the operator or user of the respective consumer v. Consumers v or charging points of people in certain departments within a company, for example field staff, receive a higher priority p than consumers v or charging points of other people or users within a company. The person's expected power consumption can be taken into account. For example, vehicles of field staff usually require more electrical power than vehicles of office staff.
- the underlying classification criterion EK and thus the group classification of consumers v can therefore vary over time or dynamically.
- the classification criterion EK can also be an electricity price per kWh that a user is willing to pay for charging or supplying electricity to their consumer v.
- the classification criterion EK can also be determined by a logical connection of other classification criteria. Based on the applied classification criterion EK, a priority p of the consumer v is determined for each consumer v.
- the currently consumed current lakt G1 of the group G3B with the lowest priority p3 within the sub-network TN-B is, for example, 30 amps.
- the minimum permissible current of this group G1 B is, for example, 24 amps.
- the total current lakt-total consumed within a sub-network TN is the sum of the currently consumed currents of all groups G of consumers v within the sub-network TN.
- an impending overload that will soon occur within the sub-network (TN) is automatically detected as soon as a currently consumed total amount of electricity, lakt-total, of all consumers, v, of all groups (G1 -GN) of the sub-network (TN) exceeds a predetermined maximum permissible amount of electricity, Imax-TN, of the sub-network (TN) or a predefined threshold value, lakt-total > Imax-TN.
- the maximum permissible current Imax-TN- B is 30 Amp.
- the currently consumed total amount of electricity lakt-total of a sub-network TN can be continuously monitored, for example by periodically measuring the amount of electricity currently consumed by all consumers, v, of the sub-network TN and then aggregating the measured consumer electricity quantities I of the sub-network TN to the currently consumed total amount of electricity, lakt-total, of the sub-network TN.
- the maximum permissible amount of electricity Imax-TN of a sub-network TN is predetermined and depends on the connected components, in particular the power lines and overcurrent protection devices connected there.
- the current or instantaneous total electricity quantity lakt-total of all consumers v of the sub-network TN is preferably determined by summing up the measured or reported consumption flows of all consumers, v, of the sub-network TN.
- the currently consumed electrical power quantities, lakt-v, of all consumers, v, of a group (Gi), measured by measuring units and reported to the control unit of the sub-network TN are first added up to give the currently consumed group power quantity (laktGi) of the relevant group (Gi).
- the currently consumed group power quantities (laktGi) of all divided groups (G1 to GN) of consumers in the sub-network (TN) can then be added up to calculate the currently consumed total power quantity, lakt-total, of the entire sub-network (TN).
- This currently consumed total power quantity, lakt-total, of the sub-network TN is preferably continuously monitored in step SO to detect an impending overload in the sub-network TN.
- the consumers are divided into groups Gi according to a predetermined or selectable division criterion EK in step SGi.
- a calculation of a total required total reduction in electricity, Ired-total is carried out in a first step S1 of the method according to the invention.
- This total required total reduction in electricity, Ired-total is the amount of electricity by which the total electrical electricity quantity, lakt-total, currently consumed by all consumers, v, of the sub-network (TN) is to be reduced in order to avoid the impending overload in the affected sub-network (TN) identified in step S0.
- a group target current quantity (IsollGi) is determined for each of the divided groups (Gi) of consumers, v, on the basis of the total required total reduction current quantity, Ired-total, calculated in step S1 and on the basis of a respective amount of electricity (Ispari) that can be saved by the groups (Gi).
- target currents (lsoll-v) for the different electrical consumers, v, of the various divided groups (G1, G2,...Gi...GN) of the sub-network (TN) are calculated depending on the group target current quantity (IsollGi) determined in step S2 for the groups Gi.
- the target currents (lsoll-v) of consumers, v, within a divided group (Gi) can be derived from the group target current quantity (IsollGi) of the respective group (Gi) determined in step S2.
- step S3 to calculate the target currents (lsoll-v) for the electrical consumers, v, of the divided groups (G1, G2,...Gi...GN) of the sub-network (TN), the following two sub-steps S3A, S3B are carried out for each of the divided groups (Gi) of electrical consumers, v, of the sub-network (TN), starting with the group (GN) of electrical consumers with the lowest priority (pN).
- the group G3B with the lowest priority p3 within the subnetwork TN-B includes the consumers v5B to v8B. These have a minimum group current quantity lminG3B of 24 amps in total. The current amount of electricity consumed by group G3B laktG3B is 30 amps.
- the calculated remaining residual current Iresti is therefore 50 Amp minus 6 Amp equal to 44 Amp.
- step S4 of the method according to the invention the current amount of electricity consumed by the consumers, v, of the respective group (Gi) is reduced until the group target current amount (Isoll Gi) determined for the respective group (Gi) in step S2 is reached.
- the reduction in the current amount in step S4 can initially be carried out mathematically, i.e. not yet physically.
- step S4 After the calculation of the target currents (Isoll-v) of the consumers v for each of the divided groups (Gi) of electrical consumers, v, of the sub-network (TN) in the two sub-steps S3A, S3B of step S3, in step S4, starting with the group (GN) of electrical consumers, v, with the lowest priority (pN) up to reaching the group (G1) of electrical consumers, v, with the highest priority (p1), the current amount of electricity laktGi consumed by the consumers, v, of the respective group (Gi) is mathematically reduced until the group target current amount, Isoll Gi, calculated for the respective group (Gi) in step S2 is reached.
- step SR2 initiates the start of the second round (RU 2), starting with group (GN) with the lowest priority (pN):
- step S5 Mark in step S5 the respective group (Gi) as a switchable group (Allow to Shut Down),
- step S6 Calculating in step S6 for each consumer, v, of the marked group (Gi), a saveable amount of electricity, Isparv, that can be saved by switching off (ShutDown) the respective consumer, v;
- step S7 Reduce (computationally) in step S7 the remaining residual current quantity, Iresti, by the amount of electricity that can be saved by switching off the consumer, v, in each case, lspar-v.
- Iresti the remaining residual current quantity
- Fig.3 shows a flow chart of a possible implementation of steps S1 to S7 with the two calculation rounds (RU1, RU 2) for calculating the setting currents or target currents Isollv for the consumers v of a sub-network TN.
- the currently consumed or provided amount of electricity, lakt-v, of each consumer, v, within the respective group (Gi) is physically or actually reduced step by step in a round-robin process by a current reduction amount (delta-iminus) until the group target current amount (IsollGi) determined for the relevant group (Gi) is reached, as shown in Fig.4.
- Fig.4 shows a flow chart of a possible implementation of the physical setting of the consumers v of a sub-network TN in step S8 according to the target currents Isollv of the consumers v of the sub-network TN calculated in the process according to Fig.3.
- the group GN with the lowest priority PN is started in step S8-2.
- the consumer current target point group is first initialized in step S8-3 and started with any consumer v in group G in step S8-4.
- step S8-5 a new target point ISP-new is calculated for the consumer v.
- step S8-12 a check is made to see whether the reduced current is greater than the current to be reduced (IsollGi). If this is the case, a check is made in step S8-13 to see whether there are any other groups G in the sub-network TN. If there are any other groups, the loop goes back to step S8-4, as shown in Fig.4. However, if there are no other groups G, the process ends. If the check in step S8-12 shows that the reduced current is not greater than the current to be reduced (IsollGi), a check is made in step S8-14 to see whether there are no other consumers v in the group G in question. If there are no other consumers v in the group G, the process goes to step S8-13. However, if there are still other consumers v in the group G, the process goes back to step S8-5 in a loop, as shown in Fig.4. This continues until the current to be reduced for this group G (IsollGi) is reached.
- a group (Gi) of consumers, v has been marked as a switchable group (Allow to Shutdown) in step S5
- step S8 if after the physical reduction of the power consumption of the consumers ,v, of all groups G of the sub-network (TN) in step S8 there is no longer any risk of an overload occurring in the sub-network (TN), the power consumption of the consumers ,v, of the sub-network (TN) is increased again for each of the divided groups (Gi) of electrical consumers ,v, of the sub-network (TN), starting with the group (G1) of electrical consumers v with the highest priority (p 1 ) up to the group (GN) with the lowest priority (pN) in a step S9.
- step S9 a currently consumed amount of electricity, lakt-v, of each consumer, v, within the respective group (Gi) is increased by a current increase amount (Delta-I plus) in one or more increase steps, provided that this does not exceed a permissible maximum amount of electricity, lmax-v, of the respective consumer, v.
- the consumers, v, of the sub-network (TN) have controllable and/or switchable loads.
- the consumers, v, of the sub-network (TN) can have permanently installed loads, in particular heat pumps or inverters, and connectable loads, in particular vehicle batteries that can be connected to charging points of the sub-network (TN).
- the subnetwork TN is a charging network with charging points or charging columns for charging electric vehicles that can be connected to it as consumers.
- This subnetwork TN can, for example, be provided in a company car park for charging employee vehicles.
- the electric vehicles usually do not have any wireless communication option with the control of the subnetwork TN.
- the e-vehicles normally only communicate with the charging station (wall box) via a charging cable.
- This charging station has a wired and/or wireless communication interface with the control of the subnetwork TN.
- the electric vehicles each have their own control unit that can communicate directly with the control of the subnetwork TN via a wireless interface.
- the control unit of the electric vehicle reports the current state of charge SoC of its vehicle battery directly or indirectly via the charging station to the control of the subnetwork TN.
- One possible classification criterion EK for classifying the consumers or vehicle batteries to be charged is the state of charge SoC.
- EK1 an electric vehicle battery of a high-ranking employee (EK1) of the company receives a high priority p if the state of charge SoC of the electric vehicle battery is below a defined threshold (EK2).
- the priority p for charging a consumer v can therefore change over time.
- the group classification of the consumers v can, for example, be periodically renewed. If a consumer v is assigned to a group G with a lower priority p during the charging process, the charging process can be extended.
- the additional charging time required is preferably communicated to the user of the electric vehicle concerned by the control of the subnetwork TN via the wireless interface, for example on a display in the vehicle or on a display on the user's mobile phone.
- a load is dynamically divided into a group (Gi) upon connection to a charging point of the sub-network (TN) depending on at least one provided classification criterion.
- the current increase amount (Delta-Iplus) used in step S9 and the current reduction amount (Delta-Iminus) used in step S8 depend on the type of consumer, v. At least some of the electrical consumers, v, of a sub-network (TN) can each report or communicate its associated permitted current increase amount (Delta-Iplus) and/or its permitted current reduction amount (Delta-Iminus) to the controller of the sub-network TN or to a server, for example via a wireless interface.
- the method according to the invention can be carried out on a processor of a local controller or a local control unit of a subnetwork TN. Alternatively, the method can also be carried out on a server in a cloud. The method is preferably carried out in real time.
- the invention provides an electrical sub-network, TN, with a plurality of electrical consumers, v, and with a controller for carrying out a method for avoiding a power failure in the sub-network TN.
- the sub-network TN is used to supply power to or to charge a plurality of electrical consumers v.
- the various electrical consumers, v, of the sub-network (TN) are divided into a number, N, of different groups (G1, G2,...Gi...GN) with different priorities (p1,p2, ...pi...pN).
- the division can be automatic or manual.
- the local control of the sub-network TN can have several calculation units:
- a first calculation unit of the control unit is intended to calculate a total required total reduction current quantity, Ired-total, with which the total electrical current quantity, lakt-total, currently consumed by all consumers, v, of the sub-network (TN) is to be reduced in order to avoid a detected overload in the sub-network (TN).
- a second calculation unit of the control unit is provided for determining a group target electricity quantity (IsollGi ) for each classified group (Gi) of consumers, v, on the basis of the total required total reduction electricity quantity, Ired-total, and an electricity quantity that can be saved by the respective group (Gi).
- a third calculation unit of the control unit is provided for calculating target currents (lsoll-v) for the electrical consumers, v, of the divided groups (G1, G2,...Gi...GN) of the sub-network (TN) depending on the determined group target current quantity (IsollGi).
- the various calculation units are preferably integrated or implemented in a processor of the controller or in a server.
- the method can be implemented as a program or as an application.
- the grouping of the consumers v of the sub-network TN can be carried out automatically or semi-automatically or interactively by a user or operator of the sub-network TN, for example using a user interface GUI on a computer of the sub-network TN.
- Selectable classification criteria EK can also be displayed to the user.
- the classified groups Gi with their consumers v and associated people or drivers as well as power parameters (e.g. SoC) can also be displayed to the user or operator of the sub-network TN in real time, for example schematically as shown in Fig.2.
- the method according to the invention and the corresponding control device thus intelligently prevent unwanted shutdowns or black-outs of sub-networks TN by actively influencing the power consumption of controllable loads and consumers v of the sub-network TN.
- the method makes it possible to regulate the power consumption of consumers v in such a way that there is no overload in a defined sub-network TN and thus no unwanted shutdown (black-out) of a sub-network TN.
- the method makes it possible to take into account the properties of the respective consumers/producers v of the sub-network TN. For example, it can be taken into account that no arbitrarily small electrical currents can be regulated or that certain consumers v require a minimum current in order to function properly.
- the method according to the invention makes it possible to prioritize the down-regulation of consumers v so that in a typical application, consumers v of certain departments (for example vehicle batteries of office employees of a company) are limited in their power consumption first.
- the method also takes into account a worst case, namely the occurrence of a large overload in the sub-network TN.
- the procedure can be used to specifically shed certain loads or consumers v (ie to switch them off completely), so that these loads or consumers v are separated from the sub-network TN, but the stability of the rest of the network is ensured and thus a total Failure of the sub-network TN is prevented.
- the method also includes the process of gradually increasing the electrical power of the controllable loads or consumers v after the overload has decreased or been prevented until the loads that were previously limited in power or dropped are reached.
- the method essentially comprises two main functions, namely an increase function and a decrease function.
- the "reduction" function of the method calculates new target currents Ivsoll for the controllable loads or controllable consumers v in steps S1 -S7 and then physically reduces the electrical currents of these controllable loads or consumers to these calculated target currents Ivsoll in step S8.
- the "increase" function becomes active and begins to increase the electrical current of the consumers v again in step S9.
- increase rounds can be calculated for each group Gi, with the group Gi with the highest priority p receiving the most increase rounds.
- the group GN with the lowest priority pN has exactly one increase round.
- the current increase step is, for example, 1 amp. For consumers v that have been switched off, this current increase step is equal to the stored hysteresis current. If the current laktv of consumer v plus the increase current does not exceed the permissible maximum current lmax-v of consumer v, the current of consumer v is increased by the increase current in this step. This is repeated with all consumers v within a group G. The number of increase rounds within a group G is defined by the priority p of the respective group G. The process then continues in the same way with the next group G.
- This increase algorithm ensures that each consumer v, regardless of the priority p, receives at least the hysteresis current or the minimum current, provided the current situation in the grid infrastructure allows it.
- Fig. 5 to 8 show diagrams to explain the functioning of the method according to the invention.
- Fig.5 shows currently consumed currents lakt for three different groups G1, G2, G3 with different priorities p1, p2, p3.
- the current current laktG 1 of the group G1 of consumers v with the highest priority p1 is greater than the current current laktG2 of the group G2 of consumers v with the second highest priority p2, which in turn is greater as the current current la ktG3 of the group G3 of consumers v with the lowest priority p3.
- Fig. 6 shows a simulation of the current power consumption of group G1 of consumers v with the highest priority p1.
- Fig. 7 shows a simulation of the current power consumption of group G2 of consumers v with the second highest priority p2.
- Fig. 8 shows a simulation of the current power consumption of group G1 of consumers v with the lowest priority p3.
- the power consumption of the consumers v of group G1 with the highest priority p1 is reduced or shut down compared to the power consumption of the other two groups G2 and G3.
- the entire group G3 of consumers v with the lowest priority p3 is switched off at a certain point in time.
- the signal diagrams according to Figures 5-8 are displayed to a user via a graphical user interface of a computer of the subnetwork TN or via a graphical user interface of a remote control center connected to it via a data network.
- the computer-implemented method according to the invention is suitable for a large number of applications.
- the method can run in the background in a charging network of a company's car park.
- Another application for example in the field of logistics, is the charging of a fleet of electrically operated forklifts or other transport vehicles as consumers v.
- the consumers v can also include household appliances in a home network or machines in an automation system. It can also be a mixture of these devices/loads, for example.
- a manufacturing company there can be a heterogeneous composition of these loads or consumers v, in particular company cars, logistics fleet, machines, systems, etc.
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23166512.6A EP4443687A1 (de) | 2023-04-04 | 2023-04-04 | Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz |
| PCT/EP2024/059259 WO2024209012A1 (de) | 2023-04-04 | 2024-04-04 | Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4690411A1 true EP4690411A1 (de) | 2026-02-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23166512.6A Withdrawn EP4443687A1 (de) | 2023-04-04 | 2023-04-04 | Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz |
| EP24717201.8A Pending EP4690411A1 (de) | 2023-04-04 | 2024-04-04 | Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23166512.6A Withdrawn EP4443687A1 (de) | 2023-04-04 | 2023-04-04 | Verfahren zur vermeidung eines stromausfalls in einem elektrischen netz |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP4443687A1 (de) |
| AU (1) | AU2024253844A1 (de) |
| WO (1) | WO2024209012A1 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9819194B2 (en) * | 2011-09-26 | 2017-11-14 | Kyocera Corporation | Power management system, power management method, and upper power management apparatus |
-
2023
- 2023-04-04 EP EP23166512.6A patent/EP4443687A1/de not_active Withdrawn
-
2024
- 2024-04-04 AU AU2024253844A patent/AU2024253844A1/en active Pending
- 2024-04-04 WO PCT/EP2024/059259 patent/WO2024209012A1/de not_active Ceased
- 2024-04-04 EP EP24717201.8A patent/EP4690411A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU2024253844A1 (en) | 2025-11-13 |
| WO2024209012A1 (de) | 2024-10-10 |
| EP4443687A1 (de) | 2024-10-09 |
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