Bauer, Paul

Choi, Jehwan

Wilker, Stefan

Jo, Kanghyun

Sauter, Thilo

2025-09-18T14:04:21Z

2025-09-18T14:04:21Z

2025-09-28

<div class="csl-bib-body"> <div class="csl-entry">Bauer, P., Choi, J., Wilker, S., Jo, K., &#38; Sauter, T. (2025, September 28). <i>Spatio-Temporal Optimization of Bidirectional EV Charging Using Real-Time Traffic Flow Analysis and  Stochastic Energy Modeling</i> [Conference Presentation]. Europe-Korea Conference on Science and Technologie (EKC 2025), Austria. http://hdl.handle.net/20.500.12708/219221</div> </div>

http://hdl.handle.net/20.500.12708/219221

Background The increasing adoption of electric vehicles (EVs) drives demand for larger battery capacities and higher charging power, with the aim of minimizing disruptions during long-distance travel. As a result, modern EVs are now equipped with substantial battery capacities that could supply multiple households for several days [1]. As both the distribution grid operator and the energy supplier face constant challenges of accommodating this growing power demand, rising prices are a logical consequence. While expansion of the energy storage infrastructure is a cost- intensive endeavor, it seems obvious to integrate the significant capacity of individual EVs into the power grid and benefit from bidirectional charging (vehicle-to-grid, V2G) [2]. The majority of scientific efforts to date investigate the mitigation of power peaks when charging and discharging the EV in a manner conducive to power grid's resilience and associated carbon emission reductions. However, these studies often assume static scenarios like EVs being charged overnight at home or during the day at the workplace and thus rely too much on daily timetables. Objectives The novelty of this project lies in the additional consideration of the temporal and spatial components by tracing the traffic flow via cameras. Based on the analysis of real-time video data, predictions for individual cars reaching one of several destinations are improved. The analyzed traffic data is used as a method for feasible prediction of aggregated load profiles imposed by EVs in urban scenarios [3]. Such realistic load profiles are used to investigate mitigation strategies of power peaks [4]. Methods It has been demonstrated that vehicles can be well detected through machine vision [5]. Vehicle tracking is implemented through real-time object detection models such as YOLO (You Only Look Once) and RT-DETR (Real-Time DEtection TRansformer) to continuously and accurately detect vehicles in the scene captured by cameras. After object detection, each vehicle is assigned a unique ID and its movement is tracked. Tracking techniques such as histogram-based tracking or Kalman filter are applied and compared. A rule-based deduction is made from historic traffic data and daily deviating observations gained from traffic-flow analysis. Followingly, dynamic source-target matrices including intermediate stops is created. By integrating the prediction of EV arrivals, energy is allocated according to the probability of arrival to ensure power-peak free operation. Finally, functionality for future charging demands and storage availability is added. Based on this data, an Energy Management System provides bidirectional charging recommendations to ensure grid stability and avoid peak loads. Results & Discussion A stochastic environment based on Pyomo [6] has been set up to model different weather, traffic and PV production scenarios. The stochastics are added by the Pyomo plugin MPI-SPPY [7]. Decisions on the (dis)charging processes of stationary batteries, and dynamic energy prices, both for consumption and surplus feed-in represent a linea optimization problem and are solved by a IPOPT [8]. Possible PV generation and power demand is categorized into scenarios and weighted according to their probability and the best assignment for decision variables for all weighted scenarios is calculated. Preliminary optimization results demonstrate optimization of accumulated energy price and a smooth consumption curve at the distribution substation.

BM f. Klimaschutz, Umwelt, Energie, Mobilität, Innovation u.Technologie

en

Bidirectional Charging

Optimization

stochastics

Spatio-Temporal Optimization of Bidirectional EV Charging Using Real-Time Traffic Flow Analysis and Stochastic Energy Modeling

Presentation

Vortrag

University of Ulsan, Korea (the Republic of)

University of Ulsan, Korea (the Republic of)

FO999903928

Conference Presentation

Probabilistic Sector coupling Optimizer

C4

I2

E3

Mathematical and Algorithmic Foundations

Computer Engineering and Software-Intensive Systems

Climate Neutral, Renewable and Conventional Energy Supply Systems

50

20

30

E384-01 - Forschungsbereich Software-intensive Systems

E056-16 - Fachbereich SafeSeclab

0009-0000-4887-1137

0009-0005-8494-2170

0000-0002-9873-0751

0000-0002-4937-7082

0000-0003-1559-8394

Europe-Korea Conference on Science and Technologie (EKC 2025)

26-08-2025

29-08-2025

On Site

Event for scientific audience

AT

Bauer, Paul

Multi Track

Elektrotechnik, Elektronik, Informationstechnik

2020

100

en

restricted

conference paper not in proceedings

http://purl.org/coar/resource_type/c_18cp

Publications

no Fulltext

BM f. Klimaschutz, Umwelt, Energie, Mobilität, Innovation u.Technologie

FO999903928

E384-01 - Forschungsbereich Software-intensive Systems

University of Ulsan, Korea (the Republic of)

E384-01 - Forschungsbereich Software-intensive Systems

University of Ulsan, Korea (the Republic of)

E384 - Institut für Computertechnik

0009-0000-4887-1137

0009-0005-8494-2170

0000-0002-9873-0751

0000-0003-1559-8394

E384 - Institut für Computertechnik

E384 - Institut für Computertechnik

E350 - Fakultät für Elektrotechnik und Informationstechnik