1 research outputs found
Flexible Energy Management Protocol for Cooperative EV-to-EV Charging
In this paper, we investigate flexible power transfer among electric vehicles
(EVs) from a cooperative perspective in an EV system. First, the concept of
cooperative EV-to-EV (V2V) charging is introduced, which enables active
cooperation via charging/discharging operations between EVs as energy consumers
and EVs as energy providers. Then, based on the cooperative V2V charging
concept, a flexible energy management protocol with different V2V matching
algorithms is proposed, which can help the EVs achieve more flexible and
smarter charging/discharging behaviors. In the proposed energy management
protocol, we define the utilities of the EVs based on the cost and profit
through cooperative V2V charging and employ the bipartite graph to model the
charging/discharging cooperation between EVs as energy consumers and EVs as
energy providers. Based on the constructed bipartite graph, a max-weight V2V
matching algorithm is proposed in order to optimize the network social welfare.
Moreover, taking individual rationality into consideration, we further
introduce the stable matching concepts and propose two stable V2V matching
algorithms, which can yield the EV-consumer-optimal and EV-provider-optimal
stable V2V matchings, respectively. Simulation results verify the efficiency of
our proposed cooperative V2V charging based energy management protocol in
improving the EV utilities and the network social welfare as well as reducing
the energy consumption of the EVs.Comment: Accepted by IEEE Transactions on Intelligent Transportation System