A Load Converter Impedance Adjustment Method for Stability Improvement of DC Microgrids

A method that can adjust the input impedance of loads in DC microgrids is proposed. This method can be applied to loads such as close-loop-controlled Buck converters followed by DC load, close-loop-controlled inverters, inverters with motor loads, etc. This method can improve the stability of DC microgrids by improving the amplitude-frequency characteristics of loads. Close-loop-controlled inverter is taken as an example to explain how this method works, and simulation model is built in SIMULINK to verify the effectiveness of the proposed method.