1. Reliability Assessment of Power Grid Supporting Sustainable Transportation

This chapter titled “Reliability Assessment of Power Grid Supporting Sustainable Transportation” presents analytical models to evaluate the reliability of a power system with PHEV penetration considering the important PHEV characteristics and charging scenarios. The parameters of the PHEV-30 and the transportation data from NHTS 2009 were used to create the relevant models to obtain the load model of a PHEV. A MCS method was applied to combine individual PHEV models and build the overall model of PHEV fleet. The impact of PHEV penetration in a power system was assessed using the IEEE-RTS as a test system. Different PHEV penetrations and charging scenarios were examined to analyze the results. The results show that the system reliability degrades with the increase in PHEV penetration, and the negative impact is increased with fast charging which requires a higher power demand for a shorter duration. The negative reliability impacts can however be mitigated by shifting and controlling the charging time, which is area of ongoing research.