Stability enhancement in smart grid by using superconducting fault current limiter

Demand of energy is increasing day by day. To fulfill this demand, distributed generation (DG) units are integrated with conventional grid. This integration not only effect grid planning but also impacts on operation of distribution grid. In this paper Doubly fed induction generator (DFIG) based wind turbine and diesel generator is penetrated with conventional grid. This penetration causes increase in fault current level. To mitigate this increase in fault level, Superconducting fault current limiter (SFCL) of resistive type is introduced in a system. SFCL not only minimize the fault current level but also improve the voltage profile, harmonics and transient stability of a system in case of different faults. The study is carried out using MATLAB/Simulink with special focuses on active and reactive power of the DFIG based wind turbine, conventional grid and diesel generator parameters.