METHOD FOR DYNAMIC STATE ESTIMATION IN ELECTRIC POWER SYSTEM, AND CONTROL SYSTEM OF ELECTRIC POWER SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide methods and systems for dynamic state estimation (DSE) in an electric power system (EPS) having a multi-control area interconnected power network.SOLUTION: A method comprises: estimating current states of buses in a control area using historical data via a state transition model of buses of the control area; receiving, a current state of 1-hop and n-hop neighboring buses located in neighboring control areas, where a 1-hop neighboring bus connects to one border bus of the control area via a tie-branch and n-hop neighboring bus is connected to the 1-hop neighboring bus via at least one tie-branch, where n is greater than one; determining measurements of states from buses in the control area; and updating the current state of the buses using a measurement model based on estimated current states of the control area, the received states from the neighboring control areas, and the measurements of states from buses in the control area.SELECTED DRAWING: Figure 2B