Abstract
Superconducting fault-current limiters (SFCLs) have been the subject of research and development for many years and offer an attractive solution to the problem of rising fault levels in electrical distribution systems. SFCLs can greatly reduce fault currents and the damage at the point of fault, and help improve the stability of a power system. Superconducting fault-current limiters (SFCL) provide a new efficient approach to the reliable handling of such faults.(SCFLs) can be used for various nominal voltages and currents, and can be adapted to particular limiting characteristics in case of short circuits. In this project, dc resistive type superconducting fault current limiter (SFCL) is presented. This SFCL is designed for the HVDC system. Uniform current and voltage sharing among the SFCL modules can be observed through contact resistance tests, dc flow-through tests, and ac flow-through tests. Results of tests show that each limiting module has good uniformity in higher current system. The proposed concept can be implemented using renewable energy sources.The results are presented by using Matlab/Simulink platform.
Highlights
Dc power systems are widely used because of itsflexible, low maintenance cost and fast transient capability
The design and analysis of a dc Superconducting fault current limiter (SFCL) with renewable energy source has been introduced in this paper
A series of tests of high temperature superconductor (HTS) tapes produced by Shanghai Jiao Tong University (SJTU) and American Superconductor Corporation (AMSC) are carried out to test the tape characteristics and to prove the current limiting ability of superconducting materials
Summary
Dc power systems are widely used because of itsflexible, low maintenance cost and fast transient capability. Superconducting fault current limiter (SFCL) is one of the most ideal current limiting devices to protect the system and electrical equipments It can limit the fault current effectively in power systems and prevent damage to the circuit components within several milliseconds. The prototype will be applied in an isolated dc network as an Ingrid demonstration to prove the current limiting ability of SFCL in dc systems.In this paper, renewable energy sourse can be applied at the input side.HVDC can Received September 14, 2015; Revised May 26, 2016; Accepted June 16, 2016. Superconducting limiting module of two types of HTS tapes, respectively produced by the Physics Department of Shanghai Jiao Tong University (SJTU) and American Superconductor Corporation (AMSC) are applied to the dc system to provethe current limiting ability of superconducting materials. The parameters of two types of HTS tapes are shownin Table 1
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