Computer-implemented method, network analysis arrangement, and computer program product
A computer-implemented method for a network analysis of an electrical energy network having at least one energy transmission network and at least one energy distribution network. The at least one energy transmission network has a higher rated voltage than the at least one energy distribution network. The method includes: determining a network state by use of a network analysis arrangement, taking into account a network partition data set, wherein the network partition data set provides an assignment of lines and/or equipment to the at least one energy transmission network and the at least one energy distribution network. Before a determination of the network state, by use of a network partitioning device based on a topology data set of the electric energy network, the electrical energy network is partitioned into the at least one energy transmission network and the at least one energy distribution network in the network partition data set.
1 . A computer-implemented method for a network analysis of an electrical energy network having at least one energy transmission network and at least one energy distribution network, wherein the at least one energy transmission network has a higher rated voltage than the at least one energy distribution network, which comprises the steps of:
determining a network state by means of a network analysis configuration, taking into account a network partition data set, wherein the network partition data set provides an assignment of lines and/or equipment to the at least one energy transmission network and the at least one energy distribution network; and
partitioning the electrical energy network into the at least one energy transmission network and the at least one energy distribution network in the network partition data set before the determination of the network state, by means of a network partitioning device based on a topology data set of the electrical energy network.
2 . The method according to claim 1 , wherein the network state provides at least one of the following information items about the electrical energy network: state estimation, power flows, optimized power flows, analysis of faults and countermeasures, and detection of fault locations in the electrical energy network.
3 . The method according to claim 1 , wherein the topology data set describes the electrical energy network using edges as electrical lines and nodes as generators and/or loads.
4 . The method according to claim 3 , which further comprises identifying electrical network regions in the electrical energy network by means of the network partitioning device based on the topology data set, such that for each electrical network region, the electrical lines and/or the loads and/or the generators with a rated voltage below a pre-determined threshold value for the rated voltage are assigned to a preliminary energy distribution network, and the electrical lines and/or the loads and/or the generators with a rated voltage above the pre-determined threshold value for the rated voltage are assigned to a preliminary energy transmission network.
5 . The method according to claim 4 , wherein the preliminary energy distribution network is verified as an energy distribution system based on at least one assessment criterion, wherein the at least one assessment criterion contains at least one of the following assessment criteria: number of busbars, number of loads, number of sequential subdivisions or branches, minimum electrical resistance of branches in the preliminary energy distribution network, number of radial branches, the rated voltage, and number of available measurements.
6 . The method according to claim 4 , wherein at least one technical constraint is taken into account for an identification of the electrical network regions, wherein the at least one technical constraint contains at least one of the following constraints: minimum number of edges, at least one generator and at least one load.
7 . The method according to claim 1 , which further comprises updating the network state within a specified time period, wherein the network partition data set has been previously updated.
8 . A network analysis configuration for a network analysis of an electrical energy network having at least one energy transmission network and at least one energy distribution network, wherein the at least one energy transmission network has a higher rated voltage than the at least one energy distribution network, the network analysis configuration comprising:
a state estimation device for determining a network state, taking into account a network partition data set, wherein the network partition data set provides an assignment of lines and/or equipment to the at least one energy transmission network and the at least one energy distribution network; and
a network partitioning device configured to provide, before the determination of the network state, based on a topology data set of the electric energy network, a partitioning of the electric energy network into the at least one energy transmission network and the at least one energy distribution network in the network partition data set.
9 . The network analysis configuration according to claim 8 , wherein said state estimation device is configured to configure the network state to provide at least one of the following information items about the electrical energy network: state estimation, power flows, optimized power flows, analysis of faults and countermeasures, and detection of fault locations in the electrical energy network.
10 . The network analysis configuration according to claim 8 , wherein the topology data set describes the electrical energy network using edges as electrical lines and nodes as generators and/or loads.
11 . The network analysis configuration according to claim 10 , wherein said network partitioning device is configured to identify electrical network regions in the electrical energy network based on the topology data set, such that for each electrical network region, the electrical lines and/or the loads and/or the generators with a rated voltage below a pre-determined threshold value for the rated voltage are assigned to a preliminary energy distribution network, and the electrical lines and/or the loads and/or the generators with a rated voltage above the pre-determined threshold value for the rated voltage are assigned to a preliminary energy transmission network.
12 . The network analysis configuration according to claim 11 , wherein said network partitioning device is configured, to verify the preliminary energy distribution network as an energy distribution system based on at least one assessment criterion, the at least one assessment criteria containing at least one of: number of busbars, number of loads, number of sequential subdivisions or branches, minimum electrical resistance of branches in the preliminary energy distribution network, number of radial branches, the rated voltage, and number of available measurements.
13 . The network analysis configuration according to claim 11 , wherein said network partitioning device is configured, to take at least one technical constraint into account for an identification of the electrical network regions, the at least one technical constraint containing at least one of the following constraints: minimum number of edges, at least one generator and at least one load.
14 . The network analysis configuration according to claim 8 , wherein the network state is updated within a specified time period, wherein the network partition data set is previously updated.
15 . A non-transitory computer readable medium, comprising:
computer executable instructions which during execution on a computer, cause said computer to implement the method according to claim 1 .