Stator Current Limiter: SCL2C

 

Model Equations and/or Block Diagrams

Parameters:

ISCLim SCL terminal current pick up level (pu)
TIT Terminal current transducer equivalent time constant (s)
K SCL timing characteristic factor
TQSL Reactive current transducer equivalent time constant (s)
IQmin Dead band for reactive current (pu)
VSCLdb Dead band for reactive power or power factor (pu)
TINV Inverse time delay after pickup (s)
TDSCL Fixed time delay after pickup (s)
SW1 Reactive current/reactive power selector (1 = Position A, 2 = Position B)
SW2 Fixed time or inverse time selector
KPoex SCL proportional gain overexcited range (pu)
KIoex SCL integral gain overexcited gain (pu/s)
KPuex SCL proportional gain underexcited range (pu)
KIuex SCL integral gain underexcited gain (pu/s)
VSCLmax SCL upper integrator limit (pu)
VSCLmin SCL lower integrator limit (pu)