Patent ID: 11928398
Assignee: HYDRO-QUÉBEC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 14:
15. Tangible and non-transitory computer program product for reconstructing a topology of an electrical distribution network having nodes to which smart meters are connected, the product containing instructions which, when executed by a processor, cause the processor to perform the steps of:
(i) generating an ohmic matrix model of the distribution network as a function of consumption measurements provided by the smart meters, the ohmic matrix model having matrix terms indicative of resistive quantities between the nodes and a root to which a distribution transformer of the distribution network is connected;
(ii) defining a tree table of the nodes; and
(iii) by Sequences of decreasing values derived from the resistive quantities of the ohmic matrix model and iteratively for the nodes to enter in the tree table:
(a) defining a new branch as branch in exploration in the tree table;
(b) entering a node having the highest resistive quantity as terminal node of the branch in exploration in the tree table; and
(c) entering in the tree table, in successive upstream positions from one another towards the root, all the nodes other than the terminal node meeting preestablished decision criteria as a function of connection values derived from the 30 s resistive quantities and, as other nodes are progressively entered for the branch in exploration, with said other nodes, one of the preestablished decision criteria determining a junction of a last node entered in the tree table with a branch already explored depending on whether the resistive quantity of the last node corresponds, within a preset sensitivity margin, to a node of an explored branch or to a position between two nodes of a branch already explored, another one of the preestablished decision criteria determining a connection of the last node to the root;

the topology of the distribution network being reconstructed when all the nodes are associated with a branch in the tree table and at least one node or a junction is connected to the root; and
remotely controlling equipment of the distribution network to ensure safe operation of the electrical distribution network.