Response capability evaluation model of electric vehicle aggregator based on evolutionary game and response anticipation

Abstract

Accurately quantitative evaluation of the response capability of electric vehicle aggregator (EVA), i.e., the adjustable range of power, is the premise and basis of its participation in the demand response (DR). In response to the current EVA’s response capability evaluation, ignoring the autonomy of EV decision-making behavior may lead to overly idealized evaluation results, as well as the problem of evaluating only from a single time scale. To this end, this paper proposes a response capability evaluation model of EVA based on evolutionary game and response anticipation. Based on the physical constraints of EVs and their willingness to discharge, response capability evaluation models are constructed for individual EVs of different response types. Considering the autonomy of decision-making behavior of EVs, an evolutionary game model with multi-strategy sets of EVs is constructed. Based on the idea of response anticipation, a regulation strategy is proposed for EVA to achieve the dynamic update of EVA’s response capability. The proposed model is verified to be able to accurately evaluate the EVA’s response capability through simulation examples, and the EVA response capability evaluation is extended from a single time scale to multiple time scales. The evaluation results can be used as the basis for EVA to participate in the electricity market bidding.

An Optimized Decision Model for Electric Vehicle Aggregator Participation in the Electricity Market Based on the Stackelberg Game

“…With the increasing popularity of charging pile infrastructure, the development of smart electronic devices, and 5G communication technology, EVs can realize intelligent interaction with the grid [8]. However, the capacity of an individual EV is small and has not reached the threshold of access to the electricity market [9,10]. Therefore, a large number of electric vehicles can be aggregated by an electric vehicle aggregator (EVA) as an agent to participate in electricity market transactions and provide various auxiliary services for the power system, thus improving the reliability of power supply, promoting new energy consumption, and enhancing the energy efficiency level of the whole society [11].…”