An approach for assignment of the optimal location and tap changer adjustment related to flux-lock type superconducting fault current limiters with tap changer (TC-FLSFCL) is used in this paper by debating the reduction of fault current flowing from each device and enhancement of reliability varying with customer type in a distribution network connected with distribution generation (DG). TC-FLS...

Protection of radial distribution networks is widely based on coordinated inverse time overcurrent relays (OCRs) ensuring both effectiveness and selectivity. However, the integration of distributed generation (DG) into an existing distribution network not only inevitably increases fault current levels to levels that may exceed the OCR ratings, but it may also disturb the original overcurrent re...

A DC distribution system, which is suitable for access to distributed power generation and DC loads, is one of the development directions in power systems. Furthermore, it could greatly improve the energy efficiency and reduce the loss of power transportation. The huge short circuit current is always a great threat to the safety of the components, especially the capacitors and diodes. A resisti...

DC system protection is more challenging than that for AC due to the rapid rate of rise fault current and absence natural zero-crossing in systems. Superconducting limiter (SFCL) systems a promising technology reduce level current, also SFCLs have no resistance during normal operation. In this paper, behaviors an SFCL coil are investigated under both low impedance high conditions condition syst...

an approach for assignment of the optimal location and tap changer adjustment related to flux-lock type superconducting fault current limiters with tap changer (tc-flsfcl) is used in this paper by debating the reduction of fault current flowing from each device and enhancement of reliability varying with customer type in a distribution network connected with distribution generation (dg). tc-fls...

Concerning the development of a micro-grid integrated with multiple intermittent renewable energy resources, one of the main issues is related to the improvement of its robustness against short-circuit faults. In a sense, the superconducting fault current limiter (SFCL) can be regarded as a feasible approach to enhance the transient performance of a micro-grid under fault conditions. In this pa...

In this paper, the fault current limiting (FCL) characteristics of a flux-coupled type superconducting limiter (SFCL) with parallel connection between two windings in DC system were analyzed. The SFCL was composed coils connected and element (SE), which series secondary coil. works systems similar to those AC systems. Before occurs, respective magnetic fluxes generated by offset each other, mai...

The development of industrial technology is based on electronic devices that are sensitive to power quality. Thus, the demand for high-quality and reliable supplies increasing. Voltage sag results in severe problems manufacturing process quality-sensitive loads. When a fault occurs multi-ground distribution system, magnitudes current voltage faulted nonfaulted feeders become high. Hence, instal...