H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/26 (2006.01) H02H 7/22 (2006.01) H02J 3/00 (2006.01) H02H 3/05 (2006.01) H02H 3/40 (2006.01)
Patent
CA 2446876
-25- For the control of an electric power transmission network, where local protection functions are implemented by a plurality of local protection devices (3,3a,3b,3b',3c) located at a plurality of locations throughout the network, the following steps are executed .cndot. measuring phasor data for voltages and currents at a plurality of locations (A, B) of the network, .cndot. transmitting said phasor data to a central processing device (2), .cndot. emulating, in the central processing device (2), protection functions that are implemented in the local protection devices (3,3a,3b,3b',3c), and .cndot. executing, in accordance with a given redundancy strategy, control commands that are issued redundantly by the local protection devices (3,3a,3b,3b',3c) and by the central processing device (2). In a preferred variant of the invention, values of predetermined parameters that are used in the protection function, in particular protection threshold values, are adapted to measured values.
Bertsch Joachim
Naedele Martin
Rehtanz Christian
Abb Research Ltd
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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