US 12,394,983 B2
Electrical power system
Luis David Pabon Ospina, Kassel (DE); and Thierry Van Cutsem, Liège (BE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V, Munich (DE)
Appl. No. 18/007,124
Filed by Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V., Munich (DE)
PCT Filed Jul. 8, 2021, PCT No. PCT/EP2021/068968
§ 371(c)(1), (2) Date Jan. 27, 2023,
PCT Pub. No. WO2022/022972, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 10 2020 209 715.1 (DE), filed on Jul. 31, 2020.
Prior Publication US 2023/0231383 A1, Jul. 20, 2023
Int. Cl. H02J 3/16 (2006.01); H02J 3/00 (2006.01)
CPC H02J 3/16 (2013.01) [H02J 3/001 (2020.01)] 17 Claims
OG exemplary drawing
 
1. An electrical power system, comprising:
a transmission system configured to transmit a first electrical power using a first voltage;
wherein said first electrical power is produced by a power generation unit,
a distribution network configured to distribute the first electrical power using a second voltage and configured to be in an electrical or electromagnetic communication with the transmission system via a coupling unit having a coupling ratio;
at least one distributed generation unit DGU configured to generate a second electrical power and be in an electrical or electromagnetic communication with the distribution network,
wherein the second electrical power is generated independently from the power generation unit,
a control unit configured to control the coupling unit at least in an emergency operating mode to bring or to keep
the value of the first voltage in a voltage range between a first threshold Vtmin and a-third threshold Vtmin′ being greater than Vtmin by a predetermined first voltage amount δ, or
the value of the second voltage in a voltage range between a second threshold Vdmax and a fourth threshold Vdmax′ being less than Vdmax by a predetermined second voltage amount ε,
wherein
additionally to the control of the coupling unit the control unit is configured to control the at least one DGU to bring or to keep
the value of the first voltage in the voltage range between the first threshold Vtmin and the third threshold Vtmin′, or
the value of the second voltage in the voltage range between the second threshold Vdmax and the fourth threshold Vdmax′; and
the control unit is further configured to determine the first threshold Vtmin corresponding to the value of the first voltage at the time of entry into the emergency operating mode and the second threshold Vdmax corresponding to the value of the second voltage at the time of entry into the emergency operating mode.