THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Low-carbon dispatch of the park IES based on the EV flexible load storage characteristics

ABSTRACT
The integrated energy system (IES) is an efficient way of utilizing energy in industry park. However, with the massive integration of renewable energy and disorganized charging of electric vehicles (EVs), the safe operation of this system faces several challenges. To address these issues, we propose a novel dispatch model that incorporates the flexible load characteristics of EV clusters. Firstly, we elucidate the operational framework for the IES in parks and establish models for users and microgrid operators incorporating carbon trading mechanisms. These models can effectively portray how an IES operates within a park setting. Secondly, using charging data from parks, we uncover potential dispatchable charging/discharging capacities for EV clusters and formulate strategies to utilize EVs as flex-ible loads in our dispatch operation policy. By appropriately regulating EV charging/discharging behaviors, demand-supply balance within the system can be better achieved. Subsequently, aiming to maximize benefits for all entities in the park area, we construct a master-slave game model that involves multiple users and microgrid operators. Lastly, employing reinforcement learning concepts, we establish an equivalent power output models for wind turbines(WT), photovoltaic (PV) power generation and apply it to an IES in an industrial park in a specific city. An analysis reveals that our proposed model not only minimizes cost associated with energy storage equipment but also significantly reduces carbon emissions-yielding mutual benefits for both microgrid operators and users.
KEYWORDS
PAPER SUBMITTED: 2023-10-20
PAPER REVISED: 2023-11-16
PAPER ACCEPTED: 2023-12-25
PUBLISHED ONLINE: 2024-01-20
DOI REFERENCE: https://doi.org/10.2298/TSCI231020289L
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