公开(公告)号：NO20022349D0

公开(公告)日：2002-05-16

申请号：NO20022349

申请日：2002-05-16

Applicant: ABB RESEARCH LTD

Inventor： REHTANZ CHRISTIAN ,  BUERGLER VALENTIN ,  BERTSCH JOACHIM

IPC: G06F17/13 ,  G06Q50/00 ,  G06Q10/00 ,  H02J3/00 ,  H02J3/24 ,  H02J

Abstract: A method, device and computer program product for the prediction of the stability of an electric power network, where the method is executed after a fault or contingency has occurred, and comprises the steps of a) during a time interval in which the network is in a transient condition, determining for at least one load connected to the electric power network, at least one parameter describing an estimated steady state behaviour of the load, b) executing a load flow calculation for the electric power network using the least one parameter describing the estimated steady state behaviour the at least one load, c) determining, if the load flow calculation indicates stability has a solution, that a future stability of the electrical power network exists, or, if the load flow calculation indicates instability does not have a solution, that a future stability of the electrical power network does not exist.