The Virtual-Impedance-Based Transient Oscillation Suppression of Multiple Grid-Forming Converters Under Superconducting Transmission

With the fast development of superconducting material, the superconducting transmission in modern power system is becoming a promising objective. Besides, the power electronics converter plays an important role in the modern power system. The grid-forming converter has been proposed to mimic the behavior of synchronous generator for the operation of modern power system. However, due to the zero electrical resistance of superconducting transmission, the interaction among different grid-forming converters may cause the transient power oscillation. To suppress the transient power oscillation among multiple grid-forming converters, a virtual impedance control schemes in grid-forming converters is proposed in this paper. The feasibility of the proposed virtual impedance is validated in the simulation.