Abstract

With the increasing maturity of energy storage technology, it has been widely used in power system. However, the promotion of energy storage, especially for residential users on the user side, has been limited by its expensive investment cost. As a shared business model, cloud energy storage (CES) can effectively improve this situation. For CES operators, V2G-capable electric vehicles (EVs) can be aggregated to provide ancillary services for CES, which help to reduce the operating cost of CES operators and improve the utilization rate of electric vehicles batteries. Through analyzing the feasibility of electric vehicle participation in CES services in terms of timing and economic, this paper proposes a charging and discharging strategy of CES with EVs participation. In this strategy, the CES operator quantify the cost of battery wear by the discharge of EVs and pay this cost to the EVs owner, which can ensure that the interests of both parties are maximized. A case study based on residential load and electricity data verified the economic benefit and feasibility of the proposed strategy.

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