论文和技术资料

Finite element models, which include the shielding characteristics of superconductors are often complex and would currently not allow us to study 3D models of devices of complex geometry such as fault current limiters. We propose instead a model based on variable electric conductivity, which is suitable to simulate magnetic field characteristics of inductive superconducting fault current limiters. It also enables such simulations to be combined with an electric circuit model.

A benchtop demonstration module of a superconducting fault current limiter has been dimensioned and optimized by a coupled magnetodynamic and electric circuit model. Based on this model, this fault current limiter was built for model validation. The results from the simulation model exhibited good agreement with the measurements in the laboratory.