Flexible Charging Optimization for Electric Vehicles Considering Distribution Grid Constraints

TLDR

The paper proposes a novel optimization framework for electric vehicle charging that incorporates distribution grid voltage and power constraints. The method generates individualized charging schedules that prevent grid congestion by respecting voltage and power limits, and is validated on a simulated distribution network. The approach successfully eliminates power and voltage violations caused by EV charging.

Abstract

In this paper, the basic functions of an electric vehicle charging service provider are described with a focus on the associated optimization problems. A novel method of planning the charging of electric drive vehicles including electricity grid constraints, both voltage and power, is shown. The method establishes an individual charging plan for each vehicle and avoids distribution grid congestion while satisfying the requirements of the individual vehicle owners. The concepts proposed in this paper are tested on a simulated electricity grid. It is shown that both power and voltage constraints due to electric vehicle charging can be avoided using the proposed method.