Voltage regulator model for the Nordic 32 test system used for
voltage stability studies
This model implements the AVR, PSS and overexcitation limiter of
the generator frames in the Nordic 32 test system used for voltage
stability studies.
The overexcitation limiter uses a delayed activation with
specifics depending on the generator.
Certain generators reduce the delay by assigning a linear
function to the error signal of the excitation current and its
limit, this is implemented in the overexcitation limitation
model.
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