Christensen, J.Falck, Gainger, A.W., Santagostino, G., Stubbe, M., Verseille, J.
所属专业方向:
电力系统
摘要:
Several systems have experienced voltage collapse, and the Task
Force's questionnaire [4] indicates a need for a widely accepted
procedure for dealing with the voltage collapse problem in system
planning. The object of this report is to present a procedure and
to establish guidelines for the use of system planners in order to
prevent voltage collapse.
The report contains an explanation of the voltage collapse
problem, and how it is influenced by transmission system charac-
teristics, the steady-state and the dynamic behaviour of the load,
as well as the overall system control. Experiences from actual
system disturbances are examined together with conclusions from
the questionnaire. Prefault conditions are discussed, and it is
suggested that the use of n - 2 security in reactive planning could
be justified in order to obtain a probability of failure due to voltage
collapse consistent with normal practice regarding transient stabi-
lity. A planning procedure based on a normal load-flow program
is established, and practical guide lines for planners are drawn up.
This procedure is much faster than procedures based on dynamic
calculations. Finally an example to illustrate the method is given.
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发表于 2008-9-1 13:05:11
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发表于 2008-9-1 19:24:52