Impact of V2G penetration on distribution system components using diversity factor

As environmental and economic forces drive the emergence of V2G into the power system, utility operators and planners are expected to be aware of the potential impact of V2G on the electric distribution system. The penetration of V2G into the electric power network will definitely affect its operational paradigm. This paper uses diversity factor technique to analyze the impact of V2G on distribution system. System level and components level impact studies show that V2G penetration will undoubtedly influence distribution system performance, design and operation. Coincident peak charging scenario is considered to ascertain the effect of V2G charging scenario on system voltage profile and power demand profile on the distribution system facilities. The simulation results showed that the degree of V2G impact on the distribution system depends on the level of V2G percentage penetration. The results also showed that if charging and discharging scenarios of V2G operations were properly managed, V2G would relief the distribution system. The analysis in this paper will motivate utility operators to undertake distribution feeder studies in order to ascertain the optimal level of V2G penetration required for best system operational practice.

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