Abstract: State estimation in an electric power system includes acquiring electrical measurements from the electric power system at a reporting rate of the electrical measurements, processing the electrical measurements into sequence data including positive sequence data, processing positive sequence data by an observable state estimator to generate a plurality of estimated states including a plurality of estimated observable states, parameters of the observable state estimator being updated by a first training module in a first time thread, processing the plurality of estimated states by an unobservable state estimator to generate a plurality of estimated unobservable states, parameters of the unobservable state estimator being updated by a second training module in a second time thread independent of the first time thread, and outputting a plurality of final estimated states generated by concatenating the plurality of estimated observable states and the plurality of estimated unobservable states.
Type:
Grant
Filed:
November 6, 2020
Date of Patent:
May 3, 2022
Assignees:
Global Energy Interconnection Research Institute Co. Ltd, State Grid Coporation of China Co. Ltd, State Grid Jiangsu Electric Power Co., LTD., State Grid ShanXi Electric Power Company
Inventors:
Yingzhong Gu, Guanyu Tian, Chunlei Xu, Qibing Zhang, Ruisheng Diao, Di Shi