Value Evaluation of Electric Vehicle Aggregation Operation Based on Value Network

By means of aggregation operation the demand side resource represented by electric vehicle (abbr. EV) can provide a lot of adjustable resource for power grid to mitigate the contradiction of balanced operation of the system. However, its business operation mode is not yet mature and one of the key reasons is that the aggregate value of EV is difficult to evaluate, so it is hard to support the construction of relevant market trading mechanism. Firstly, by means of bringing in the modeling method of value network, the value creation mode of EV aggregation operation was established to construct the value network model of EV aggregation operation. Secondly, from the perspective of EV aggregators the multi-agent value exchange relationship within the aggregation system was analyzed, and the path to obtain multi-agent value acquisition under aggregation mode was proposed. Finally, combining with a certain domestic regional market environment, the benefits of each agent in the market with/without aggregator were analyzed. Simulation results show that the EV aggregation operation makes each agent enable to generate incremental revenue, and under existing mode the aggregators obtain the most benefit. The market compensation coefficient and the increment of accommodation proportion of new energy is the key factor impacting the benefits of all parties.