Analysis of energy dissipation for HVDC circuit breakers with Superconducting fault current limiter
Author(s):
Babita M. Ghatol, Kawita D. Thakur
Keywords:
Resistive superconducting fault current limiter, mechanical CB, passive resonance CB, DC fault interruption, DC fault current
Abstract
One of the barriers for the development of multi-terminal HVDC systems is the lack of technologies which enable direct fault isolation. Effective and reliable solutions regarding massive fault energy during dc fault interruption have not yet been commercialized, and dc current breaking topologies on methods of achieving artificial zero should be somewhat modified. As an alternative, one feasible solution is to combine fault current limiting technologies with dc breaking topologies.
In this paper, observed the effects of Superconducting fault current limiter (SFCL) and two types of dc breakers. For the simulation works, two types of dc breaker topologies modeled, including a mechanical CB using black-box arc model and a passive resonance CB (PRCB). In addition, a resistive SFCL is simulated and added to the dc breakers to verify its interruption characteristic. From the simulation results, we found that the maximum fault current, interruption time, applying SFCL. In addition, it was observed that, among two types of HVDC CB, PRCB with SFCL exhibited the best observable enhancement
