PV Panels WT ac Private Apartments dc WT Converter PV Converter dc dc Kitchen Appliances (High Power Loads) 230 VAC Lights and Electronics Devices (Low Power Loads) Private Apartments Kitchen Appliances (High Power Loads) 230 VAC LVac Distribution Grid Lights and Electronics Devices (Low Power Loads) ac +VDC Building's Common Facilities dc ac dc dc dc dc dc ac G 0 V, 3 × 400 V + N dc Elevator ESS EV Charging Post Microchip Figure 3. A schematic of a hybrid ac/dc distribution system for building/residential applications. of several MG clusters. The interconnection of MG clusters is an applicable concept for LVdc distribution between buildings, where the power exchanges between the different systems can be controlled by controlling the local voltage set points. A reconfigurable topology is used when the system requires higher reliability and flexibility during faults and maintenance periods. It usually consists of a mesh or ring distribution system, in which intelligent electronic devices (IEDs) are able to connect and disconnect 24 I E E E E l e c t r i f i c ati o n M agaz ine / j un e 2016 sections of the mesh or ring. All of the elements connected to the ring are bidirectional. When a fault is detected, the IEDs disconnect the faulty area, allowing normal operation in the unaffected areas. Furthermore, a modified scheme is the zonal configuration in which each element is connected to different buses in a redundant system. The element can be fed by either one of the distribution buses, and when one bus gets compromised, the elements can switch to the remaining healthy bus.