Speaker
Description
The increasing demand for reliable power supply in modern grids has highlighted the need for effective fault current limiting solutions. Superconducting Fault Current Limiters (SFCLs) based on Conductor on Round Core (CORC) technology offer a promising approach to address this challenge, combining high performance with cost-effectiveness. This paper presents the design, development, and experimental investigation of a 35 kV/1.5 kA CORC-based SFCL. A comprehensive design methodology is employed, incorporating electromagnetic, thermal, and mechanical considerations to optimize the CORC conductor configuration for fault current limiting applications. Numerical simulations using finite element analysis are conducted to evaluate the electromagnetic characteristics, thermal behavior, and mechanical stability under both normal and fault conditions. A prototype SFCL is fabricated using advanced CORC conductor technology, and a specialized test setup is developed to accurately measure the performance parameters. Experimental results demonstrate the SFCL's ability to transport a steady alternate current of 1.5 kA at 35 kV, and to effectively limit a fault current of 20 kA with rapid response times and excellent recovery characteristics. The CORC-based design shows significant improvements in current density and material efficiency compared to conventional SFCL approaches. This research provides valuable insights into the development of cost-effective, high-performance SFCL solutions for medium-voltage power gird applications.
