A sic SGTO/PIN diode power electronic module for a fault current limiter

With the continuing expansion of the electrical distribution system, a fault current limiter is proposed in order to protect electrical devices during fault conditions and improve overall power quality. This paper documents the design and fabrication of power modules based on SiC diode and super gate turn-off thyristor for use in a solid-state fault current limiter (SSFCL) for 4.16 kV distribution systems. The thermal and electrical performances of the power modules were investigated theoretically and experimentally. The current sharing capability of the modules while in a parallel configuration was tested and met the system requirements. The full SSFCL test showed that the power modules can successfully operate at 4.16kV.