Development of a Simulink Model of a Saturated Cores Superconducting Fault Current Limiter

Abstract

Part 14: Energy: SimulationInternational audienceSuperconducting fault current limiters are considered as emerging devices for the advent of modern power grids. Those limiters as well as other electric power grid applications have been developed in the last years in order to support the increased penetration of dispersed generation. The development of such limiters requires new design tools that allows to simulate those devices in electrical power grids with different voltage ratings and characteristics. This work presents a methodology to simulate the behaviour of saturated core type limiters based on its characteristic curves. A prototype is tested to obtain its characteristic and then the methodology is implemented in Simulink. The simulation carried out by the proposed methodology is compared with a real test

Transient dynamic analyses of presaturated core fault current limiters through flux and inductance versus current modelling

“…Different analytical approaches have been proposed for analysing the transient dynamic behaviour of the PCFCL [10][11][12][13]. They can be classified into inductance model [10,11], non-linear reluctance model [12,13], and flux linkage of AC coil versus line current model [8,14].…”

“…The modelling approach in [8,14] determines the magnetic characteristics of the single-phase PCFCL through the relation between the flux linkage of each AC coil and its corresponding line current. The FE simulations and/or experimental measurements are used, in least square fitting process [8] and/or Simulink modelling [14], to investigate the transient dynamic behaviour of the PCFCL in limiting fault currents. This method allows simple and fast modelling for different configurations of PCFCLs, even with different complexities, since the AC flux linkage takes into account all linked flux inside the iron core.…”

“…The experimental measurements carried out on a laboratory scale prototype single-phase, cumulatively coupled, dual-core PCFCL [8,14] are predominantly used to validate the outcomes of this modelling approach as shown in Fig. 8.…”

Enhancement of low‐voltage ride through of wind energy conversion system using superconducting saturated core fault current limiter

“…The characteristics of SCFCL depends on the linked flux and line current; thus, if the linked flux is known, the current that the SCFCL should impose is also known. Figure helps to calculate the flux linkage from Equation . To get the dynamic behaviour of SCFCL, a simple electrical circuit is developed in Simulink.…”

“…The SCFCL is an “inductive FCL,” which overcomes most of the FCLs drawbacks outlined previously. This SCFCL exhibits several features like passive and instant triggering, passive and instant recovery after fault, and ability to control and tune various parameters of the current limiter . Even though SCFCL has been reported for grid application, but to ride through LVRT issues in DFIG system have not been yet used.…”