Fuzzy Logic Controlled Bridge Switch-Type Flux-Coupling Non-Superconducting Fault Current Limiter for Transient Stability Enhancement of Power System

In this paper, a fuzzy logic control-based Bridge Switch-Type Flux Coupling Non-Superconducting Fault Current Limiter (BSFC-NSFCL) is proposed to enhance the transient stability of the multimachine power system. The proposed controller provides global stability for the system and uses data from the system as a feedback in the controller loops. The performance of the proposed fuzzy logic controlled BSFC-NSFCL is compared with that of a static nonlinear controlled BSFC-NSFCL. The detailed controller design, analysis, and stability investigations are carried out for the IEEE 39 bus power system by the MATLAB/SIMULINK environment. From the simulation results and different quantifying parameters, it has been deduced that the proposed fuzzy logic controlled BSFC-NSFCL is effective in improving the transient stability of the power system, and also it performs better than the static nonlinear controlled BSFC-NSFCL.