Comparison of Load Models for Estimating Electrical Efficiency in DC Microgrids

This paper compares several electrical load models for estimating the efficiency of DC vs. AC distribution in micro-grids. Candidate models include energy balance, harmonic power flow, and time-domain modeling. Model results are compared with numerical studies and validated with experimental measurements. Based on quantitative and qualitative considerations, the most appropriate load modeling approach for larger-scale DC distribution efficiency studies is proposed.