Event-Driven Demand Response for Electric Vehicles in Multi-aggregator Distribution Grid Settings

摘要

In the search to accommodate increasing shares of renewable energy into today's electricity system, demand response has received renewed research attention. At the same time, the introduction of charging electric vehicles (EVs) at residential locations highlights the fact that current distribution grids were not dimensioned for the coinciding activation of such large loads. Solutions are needed that safeguard the state of distribution grids and at the same time allow large-scale demand response based on market objectives.In this thesis, scenarios are investigated where demand response of EVs is problematic for the state of the grid, and an algorithm is developed for demand response of charging EVs. This agent-based algorithm allows to integrate typical market objectives with the hard constraints at the distribution grid level. Through simulations, the severity of the conflict between market and technical objectives is examined, and the use of voltage droop control as possible solution is evaluated.