Parameter estimation method and apparatus of the reduced model of the power system .

摘要

PROBLEM TO BE SOLVED: To provide a parameter estimation method for a power system abridged model, the method capable of updating parameters of an external system abridged model, when on-line data of the external system is limited, or even when an internal system and an external system which is the object of system abridgment are connected by a plurality of different interconnection point nodes; and to provide an apparatus using the method.;SOLUTION: An estimation part 8 for estimating external system parameters is designed to adjust reactance X1, X2 of equivalent abridged branches 109a, 109b so that the tidal current P1, P2 of interconnection lines 105a, 105b and the tidal current of on-line data interconnection lines (the current tidal current P1on, P2on of the interconnection lines 105a, 105b) become equal.;COPYRIGHT: (C)2012,JPO&INPIT