US 12,444,918 B2
Protection device and method for monitoring an electrical energy supply grid
Sven Gaube, Neustadt an der Aisch (DE); Johann Jaeger, Erlangen (DE); Robert Kirkman, Altdorf (DE); Elmar Nöth, Erlangen (DE); Michael Jaworski, Höchstädt (DE); Philipp Klumpp, Nuremberg (DE); and Martin Strauss, Nuremberg (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 18/256,688
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Nov. 29, 2021, PCT No. PCT/EP2021/083309
§ 371(c)(1), (2) Date Jun. 9, 2023,
PCT Pub. No. WO2022/122441, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 20212660 (EP), filed on Dec. 9, 2020.
Prior Publication US 2024/0039269 A1, Feb. 1, 2024
Int. Cl. H02H 1/00 (2006.01); G01R 31/08 (2020.01); G06N 3/092 (2023.01); H02J 13/00 (2006.01)
CPC H02H 1/0092 (2013.01) [G01R 31/086 (2013.01); G06N 3/092 (2023.01); H02J 13/00002 (2020.01); H02J 13/0004 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A protection device for monitoring an electrical energy supply grid, the protection device comprising:
a measured value acquisition device for acquiring measured values which have been recorded at at least one measuring point in the energy supply grid and which indicate an electrical state of the energy supply grid at the at least one measuring point; and
an evaluation device connected to said measured value acquisition device and being formed entirely as a single neural network having an input neuron layer, at least one intermediate neuron layer, and an output neuron layer;
said evaluation device being configured to carry out a plurality of protection functions on a basis of the measured values and, as a result of the protection functions being carried out, to make a decision as to whether the energy supply grid is in a permissible or impermissible operating state; and
said input neuron layer being configured to receive the measured values and/or values derived therefrom, said output neuron layer being configured to output a classification of operating states of the energy supply grid, and said neural network, for classifying the operating states, being trained to carry out all the protection functions together; and
wherein at least one of said intermediate neuron layers is connected to an intermediate output neuron layer, and wherein each intermediate output neuron layer is configured to output a result specific to a single protection function.