Patent ID: 11900031
Assignee: STATE GRID JIANGSU ELECTRIC POWER CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. An electric power load modeling system comprising:
a load;
a bus connected to the load;
a measurement device coupled to the bus for measuring electric state at the bus;
a processor;
a database storing a training event record; and
a computer-readable storage medium, comprising:
software instructions executable on the processor to perform operations, including:
acquiring state information at the bus from the measurement device;
acquiring the training event record from the database;
generating a composite load model by sequentially executing steps of:
determining a final load component composition for a predetermined composite load model structure referencing to both the state information and the training event record; and
determining a plurality of final load parameters corresponding to the final load component composition and the predetermined load model structure also referencing to both the state information and the training event record,
wherein the determining the plurality of final load parameters by the software instructions executable on the processor comprises:
fixing the final load component composition;
generating a plurality of sets of parameter values from predetermined parameter ranges;
generating a dynamic response curve for each of the plurality of sets of parameter values;
evaluating the generated dynamic response curves by calculating root mean squared error (RMSE) of the dynamic response curves in reference to the training event record; and
selecting one of the plurality of sets of parameter values with a dynamic response curve having the lowest RMSE for the plurality of final load parameters.