+ Utiltiy Grid - Energy Storage Wind Turbine To dc Loads G To SinglePhase Loads PV Panel Diesel Generation To ThreePhase Loads G Power Consumer Power Generation (a) Utiltiy Grid Wind Turbine Voltage Balance Circuit + 1 V 2 dc - 1 V 2 dc G To ThreePhase Loads PV Panel To dc Loads Diesel Generation G To SinglePhase Loads Power Generation Energy Storage To SinglePhase Loads Power Consumer (b) Figure 2. Typical power architectures of a single-bus dc microgrid: (a) a common architecture and (b) a bipolar architecture. PV: photovoltaic. divided into electrical zones corresponding to the feeds, and it will typically be laid out with generational sources on the two sides, designated as port and starboard and 48 I E E E E l e c t r i f i c ati o n M agaz ine / j un e 2016 with a simple cross-connect in the forward and aft parts of the system, as shown in Figure 4(a). Such a system is commonly referred to as a dc zonal electrical distribution