Analysis and Simulation of Fault Tolerance of a Grid-connected PV Inverter by Z-source Impedance Topics: Algorithms for Reduced Power, Energy and Heat; Economic Models of Energy Efficiency; Frameworks and Models for Smart City Initiatives; IS Architecture Designs and Platforms for Smart Cities; Renewable Energy Resources; Safety, Security, and Privacy for Smart Cities; Service Innovation and Design to Support Smart Cities; Smart Energy Storage In Proceedings of the 5th International Conference on Smart Cities and Green ICT Systems SMARTGREENS - Volume 1, 324-329, 2016 , Rome, Italy