Research on Damping Impedance Type Digital-Analog Hybrid Simulation Interface based on R-L Impedance Matching

Digital-analog hybrid simulation combines digital simulation and physical simulation, and is an important simulation method for studying modern power systems. Aiming at the slow impedance matching speed and low accuracy of the damped impedance method in the current digital-analog hybrid simulation methods, a damped impedance type digital-analog hybrid simulation interface algorithm based on the R-L method. The physical side impedance is tracked by the R-L method and matched to the digital side impedance, which solves the problem of slow speed and low accuracy of the existing matching tracking method. Research the proposed damped impedance interface based on the R-L method through simulation, and compare it with the ideal transformer method in terms of algorithm stability and simulation accuracy, and the correctness of the damping impedance interface algorithm based on the R-L method in different scenarios is verified. It provides a new method for impedance matching tracking.