Design of Mid-Point Ground with Resistors and Capacitors in Mono-Polar LVDC System

Low-voltage direct current (LVDC) systems have been increasingly studied as new efficient power systems. However, existing studies primarily focused on conversion designs, control, and operation, research ground configurations of LVDC systemsis insufficient. Consideration the installation criteria protective equipment grounding is crucial because in general households for end users are highly associated with risk human electrocution. Therefore, we investigate a mid-point system using capacitors to ensure electrical safety mono-polar that user can directly experience household. MATLAB/Simulink used analyze fault characteristics by considering effects DC body based International Electrical Code (IEC). Consequently, this paper suggests minimum required values resistors operate residual detector (DC RCD), operation RCD was confirmed. By confirming applicability household resistors, unnecessary loss accidents, such electric shocks fires, could be minimized.