  This paper deals with the challenge of short-circuit calculation for power
systems dominated by power electronics converters. A novel methodology has been
presented to identify short-circuit equilibrium point of the studied system
considering the operation and limitations of power converters. The studied
system has been modeled with an element-based steady-state formulation. In
particular, the governing equations implemented on converter control, which
involve a specific control mode and various potential current-saturation
states, are included. Then, an effective and efficient approach has been
proposed to identify the short-circuit equilibrium points that satisfies
converters limitations. Numerical case studies with VSCs show that the proposed
methodology can identify the short-circuit equilibrium point efficiently and
accurately with different types and depths of short-circuit fault. The
short-circuit calculation results have been validated with dynamic simulations.
