Isabel:
Try creating a small band of acceptable voltage limits at the
generator bus
say VMIN = Vcenter - epsilon <= V <= Vcenter + epsilon =
VMAX, then start slowly
moving Vcenter from the initial optimization problem's solution
towards the value that
you want to set, and solve it for each case and look out for
changes in the magnitude of the
Lagrange multipliers everywhere; this might give you an idea about
what is going wrong.
carlos.
Isabel Duque wrote:
Hello,
I’m using the Matpower
OPF in order to optimize the
dispatch of generators in a distribution network in case of
voltage constraint
violations. The OPF is able to find a solution for my
initial
optimization problem.
However, as soon as I
try to set the voltage limits on
the bus of one of my generators to a certain value
(different from the acceptable
voltage range at the other buses) the OPF does not converge
anymore. I’ve
tried not setting a specific value, but leaving some degree
of freedom for the
voltage at said generator bus, but the OPF still doesn’t
converge.
I’m trying to do the
“voltage setting” at the
generator bus in the mpc.bus file for maximum- and minimum
voltage magnitude:
maximum voltage magnitude = minimum voltage magnitude.
Does anyone have an
idea what could be the source of
this problem?
Best regards,
Isabel
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