Power systems analysis for direct current (DC) distribution systems

Many standards, guidelines, etc., exist which provide guidance for DC power systems analysis. These documents are scattered throughout the industry (i.e., IEEE, UL, NEMA, GE, etc.), and primarily treat the subject as though hand calculations are being performed. It is the intent of this paper to provide guidance for performing computer aided DC power systems analyzes. This paper covers load flow/voltage drop and short circuit calculations.