A positioning method of distributed power system for minimum voltage variation in a DC microgrid

Abstract

In this paper, a positioning method of distributed power system is proposed to minimize average voltage variation of DC microgrid through voltage sensitivity. Power flow analysis is performed to derive voltage sensitivity, and droop bus is introduced to improve the accuracy of voltage sensitivity. In addition, the averaged voltage sensitivity according to the position of the distributed power system is calculated and compared to determine the position where the average voltage variation of the DC microgrid is minimized. The results of the positioning method are verified by PSCAD/EMTDC simulation.