Symmetrical components and power analysis for a two-phase microgrid system

This paper presents a mathematical model for the symmetrical components and power analysis of a new microgrid system consisting of three wires and two voltages in quadrature, which is designated as a two-phase microgrid. The two-phase microgrid presents the following advantages: 1) constant power through the power line at balanced condition; 2) two voltages available by using a three-wire system; 3) optimized voltage utilization compared to a three-phase system; and 4) a direct connection of both symmetrical two-phase and single-phase machines. Unlike the unbalanced three-phase system, which can be represented by three sets of symmetrical components, the unbalanced two-phase system is broken up into only two symmetrical components. Simulation results are employed to demonstrate the feasibility of the theoretical study.