OverexcLim2: Different from LimIEEEOEL, LimOEL2 has a fixed pickup threshold and reduces the excitation set-point by means of a non-windup integral regulator.
OverexcLimIEEE: The over excitation limiter model is intended to represent the significant features of OELs necessary for some large-scale system studies.
OverexcLimX1: Field voltage over excitation limiter.
OverexcLimX2: Field voltage or current overexcitation limiter designed to protect the generator field of an AC machine with automatic excitation control from overheating due to prolonged overexcitation.
OverexcitationLimiterDynamics: Overexcitation limiter function block whose behaviour is described by reference to a standard model or by definition of a user-defined model.