US 12,470,064 B2
Systems and methods for dynamic rating of power grids
Hengxu Ha, Stafford (GB); Sankara Subramanian Srigopalakrishnamurthi, Stafford (GB); Mitalkumar Kanabar, Markham (CA); Claudia Cosoreanu, Markham (CA); and Rajagopal Kommu, Hyderabad (IN)
Assigned to GE Vernova Infrastructure Technology LLC, Greenville, SC (US)
Filed by General Electric Technology GmbH, Baden (CH)
Filed on Oct. 11, 2022, as Appl. No. 18/045,816.
Prior Publication US 2024/0128752 A1, Apr. 18, 2024
Int. Cl. H02J 3/14 (2006.01)
CPC H02J 3/144 (2020.01) [H02J 2300/20 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system for dynamic rating of a power grid comprising a network of a plurality of nodes coupled by a plurality of lines, the system comprising:
a plurality of terminal units, each terminal unit of the plurality of terminal units being configured to detect a voltage phasor and a current phasor at a respective node of the plurality of nodes and generate signals indicative of the voltage phasor and the current phasor; and
a controller configured to:
receive signals from the plurality of terminal units indicative of the voltage phasors and the current phasors of the plurality of nodes,
determine, based on the voltage phasors and the current phasors of the plurality of nodes, a dynamic thermal stability power rating for each line of the plurality of lines, wherein the dynamic thermal stability power rating is indicative of a maximum rating current and a maximum conductor temperature supported by each line,
determine, based on the voltage phasors and the current phasors of the plurality of nodes, a dynamic angular stability power rating for each node of the plurality of nodes, wherein the dynamic angular stability power rating is indicative of a maximum transmission power corresponding to an angular stability margin for each node,
determine, based on the voltage phasors and the current phasors of the plurality of nodes, a dynamic voltage stability power rating for each node of the plurality of nodes,
determine, based on the dynamic thermal stability power rating, the dynamic angular stability power rating, and the dynamic voltage stability power rating, a dynamic system rating for the power grid, and
control the power grid in response to the dynamic system rating.