power flow
2016-08-23
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The pre-outage state of a part of an interconnected power system network, where a line-l connected between bus-r
and bus-s is shown in Fig. 1. Figure 2 shows the post outage state of the power system network with a line-l to be
considered as out of service. The simulation of a line outage will require modification of [YBus] parameters to
exclude the parameters of the line-l, which changes the Jacobian matrix. This involves a time intensive process. A
line outage has been approximately simulated by considering two fictitious generators at bus-r and bus-s and a
fictitious line between the buses having the same parameters as the original line to retain the original [YBus] and also
the elements of Jacobian and power flow sensitivity matrix, [28]. Thus, retaining a fictitious line with the same
parameters as that of an original line [YBus] remains unaffected. The power flow in this fictitious line is considered
as the pre-outage power
and bus-s is shown in Fig. 1. Figure 2 shows the post outage state of the power system network with a line-l to be
considered as out of service. The simulation of a line outage will require modification of [YBus] parameters to
exclude the parameters of the line-l, which changes the Jacobian matrix. This involves a time intensive process. A
line outage has been approximately simulated by considering two fictitious generators at bus-r and bus-s and a
fictitious line between the buses having the same parameters as the original line to retain the original [YBus] and also
the elements of Jacobian and power flow sensitivity matrix, [28]. Thus, retaining a fictitious line with the same
parameters as that of an original line [YBus] remains unaffected. The power flow in this fictitious line is considered
as the pre-outage power
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