Class Description

The grid protection model includes protection against over- and under-voltage, and against over- and under-frequency.
Reference: IEC 61400-27-1:2015, 5.6.6.

Attributes

Name Type Description
dfimax PU Maximum rate of change of frequency (dFmax). It is a type-dependent parameter.
fover PU Wind turbine over frequency protection activation threshold (fover). It is a project-dependent parameter.
funder PU Wind turbine under frequency protection activation threshold (funder). It is a project-dependent parameter.
mzc Boolean Zero crossing measurement mode (Mzc). It is a type-dependent parameter.
true = WT protection system uses zero crossings to detect frequency (1 in the IEC model)
false = WT protection system does not use zero crossings to detect frequency (0 in the IEC model).
tfma Seconds Time interval of moving average window (TfMA) (>= 0). It is a type-dependent parameter.
uover PU Wind turbine over voltage protection activation threshold (uover). It is a project-dependent parameter.
uunder PU Wind turbine under voltage protection activation threshold (uunder). It is a project-dependent parameter.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

Source Class Cardinality Source Target Class Cardinality Target Source Name Source Assoc. Description Target Name Target Assoc. Description
WindProtectionIEC 1 WindTurbineType3or4IEC 0..1 WindProtectionIEC Wind turbune protection model associated with this wind generator type 3 or type 4 model. WindTurbineType3or4IEC Wind generator type 3 or type 4 model with which this wind turbine protection model is associated.
WindProtectionIEC 1 WindTurbineType1or2IEC 0..1 WindProtectionIEC Wind turbune protection model associated with this wind generator type 1 or type 2 model. WindTurbineType1or2IEC Wind generator type 1 or type 2 model with which this wind turbine protection model is associated.
WindDynamicsLookupTable 1..* WindProtectionIEC 0..1 WindDynamicsLookupTable The wind dynamics lookup table associated with this grid protection model. WindProtectionIEC The grid protection model with which this wind dynamics lookup table is associated.