This paper proposes three nonlinear controllers such
as fuzzy logic controller (FLC), static nonlinear controller (SNC),
and adaptive-network-based fuzzy inference system (ANFIS)-
based variable resistive-type fault current limiter (VR-FCL) to
augment the transient stability of a large-scale hybrid power system
consisting of a doubly fed induction generator (DFIG)-based
wind farm, a photovoltaic (PV) plant, and a synchronous generator
(SG). Appropriate resistance generation of the VR-FCL during
a grid fault to provide better transient stability is the main contribution
of the work. The effectiveness of the proposed control
methods in improving the transient stability of the hybrid power
network is verified by applying both balanced and unbalanced
faults in one of the double circuit transmission lines connected to
the system. Simulation results show that the proposed FLC-, SNC-,
or ANFIS-based VR-FCL are effective in improving the transient
stability of the studied hybrid system. Moreover, all the proposed
methods exhibit almost similar performance. Therefore, any of the
methods can be chosen for the transient stability enhancement of
the hybrid power system.