Leo Strobel - Lehrstuhl für Informatik III

Telefon	(0931) 31-89635
E-Mail	leo.strobel@uni-wuerzburg.de
Raum	01.019
Anschrift	Lehrstuhl für Informatik III Am Hubland D-97074 Würzburg

Research Interests

Energy system analysis and optimization
Simulation of transport systems
Optimized grid integration of electric vehicles

Research projects

Recent Publications

2022[ to top ]

Feasibility of completely electrified two-way car sharing Strobel, Leo; Pruckner, Marco in 2022 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm) (2022). 206–211.
- [ Abstract ]
- [ BibTeX ]
- [ EndNote ]
- [ URL ]
Car sharing is a more sustainable approach to personal mobility than vehicle ownership, especially if car sharing services electrify their fleets. However, due to the limited range and slow charging process of electric vehicles, car sharing providers might face problems keeping the vehicles adequately charged. This paper analyzes 4.5 years of real booking data from a German two-way car sharing provider. The dataset includes information on the booking time window, driven distance, and location. We use this data to study the customer behavior and simulate the past operation with a completely electrified fleet. Based on the simulation, we determine whether charging problems exist and how they can be solved by adapting the charging rate, battery capacity, and number of charging points. Our results indicate that the operation of the service with modern electric vehicles is entirely feasible. Per car sharing station, two charging points are sufficient if vehicles do not have to be connected immediately upon arrival (by the customer), but can connect later once another vehicle has finished charging. Somewhat problematic is that 4% of the bookings have a longer driven distance than the vehicle's range. In these cases, the disutility to customers is unclear but, in all likelihood, manageable. Furthermore, we find that 50% of the charging events can be shifted by more than 10h, indicating significant flexibility that could be utilized for smart charging and the provision of ancillary services in the future.

@inproceedings{9961032, abstract = {Car sharing is a more sustainable approach to personal mobility than vehicle ownership, especially if car sharing services electrify their fleets. However, due to the limited range and slow charging process of electric vehicles, car sharing providers might face problems keeping the vehicles adequately charged. This paper analyzes 4.5 years of real booking data from a German two-way car sharing provider. The dataset includes information on the booking time window, driven distance, and location. We use this data to study the customer behavior and simulate the past operation with a completely electrified fleet. Based on the simulation, we determine whether charging problems exist and how they can be solved by adapting the charging rate, battery capacity, and number of charging points. Our results indicate that the operation of the service with modern electric vehicles is entirely feasible. Per car sharing station, two charging points are sufficient if vehicles do not have to be connected immediately upon arrival (by the customer), but can connect later once another vehicle has finished charging. Somewhat problematic is that 4% of the bookings have a longer driven distance than the vehicle's range. In these cases, the disutility to customers is unclear but, in all likelihood, manageable. Furthermore, we find that 50% of the charging events can be shifted by more than 10h, indicating significant flexibility that could be utilized for smart charging and the provision of ancillary services in the future.}, author = {Strobel, Leo and Pruckner, Marco}, booktitle = {2022 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)}, keywords = {strobel}, month = {oct}, pages = {206-211}, title = {Feasibility of completely electrified two-way car sharing}, year = 2022 }

%0 Conference Paper %1 9961032 %A Strobel, Leo %A Pruckner, Marco %B 2022 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm) %D 2022 %P 206-211 %R 10.1109/SmartGridComm52983.2022.9961032 %T Feasibility of completely electrified two-way car sharing %U https://ieeexplore.ieee.org/document/9961032/ %X Car sharing is a more sustainable approach to personal mobility than vehicle ownership, especially if car sharing services electrify their fleets. However, due to the limited range and slow charging process of electric vehicles, car sharing providers might face problems keeping the vehicles adequately charged. This paper analyzes 4.5 years of real booking data from a German two-way car sharing provider. The dataset includes information on the booking time window, driven distance, and location. We use this data to study the customer behavior and simulate the past operation with a completely electrified fleet. Based on the simulation, we determine whether charging problems exist and how they can be solved by adapting the charging rate, battery capacity, and number of charging points. Our results indicate that the operation of the service with modern electric vehicles is entirely feasible. Per car sharing station, two charging points are sufficient if vehicles do not have to be connected immediately upon arrival (by the customer), but can connect later once another vehicle has finished charging. Somewhat problematic is that 4% of the bookings have a longer driven distance than the vehicle's range. In these cases, the disutility to customers is unclear but, in all likelihood, manageable. Furthermore, we find that 50% of the charging events can be shifted by more than 10h, indicating significant flexibility that could be utilized for smart charging and the provision of ancillary services in the future.
Joint analysis of regional and national power system impacts of electric vehicles - A case study for Germany on the county level in 2030 Strobel, Leo; Schlund, Jonas; Pruckner, Marco in Applied Energy (2022). 315 118945.
- [ BibTeX ]
- [ EndNote ]
- [ URL ]
@article{Strobel_2022, author = {Strobel, Leo and Schlund, Jonas and Pruckner, Marco}, journal = {Applied Energy}, keywords = {strobel}, month = {jun}, pages = 118945, publisher = {Elsevier {BV}}, title = {Joint analysis of regional and national power system impacts of electric vehicles - A case study for Germany on the county level in 2030}, volume = 315, year = 2022 }

%0 Journal Article %1 Strobel_2022 %A Strobel, Leo %A Schlund, Jonas %A Pruckner, Marco %D 2022 %I Elsevier {BV} %J Applied Energy %P 118945 %R 10.1016/j.apenergy.2022.118945 %T Joint analysis of regional and national power system impacts of electric vehicles - A case study for Germany on the county level in 2030 %U https://doi.org/10.1016%2Fj.apenergy.2022.118945 %V 315

2021[ to top ]

Smart Charging and Renewable Grid Integration - A Case Study Based on Real-Data of the Island of Porto Santo Strobel, Leo; Schlund, Jonas; Brandmeier, Veronika; Schreiber, Michael; Pruckner, Marco in Sustainable Energy for Smart Cities, J. L. Afonso, V. Monteiro, J. G. Pinto (eds.) (2021). 200–215.
- [ Abstract ]
- [ BibTeX ]
- [ EndNote ]
The penetration of battery electric vehicles is increasing. Due to their ability to store electrical power and to shift charging events, they offer a wide range of opportunities with regard to renewable grid integration and lowering the overall CO2 emissions. This is particularly evident for isolated microgrids, such as the Portuguese island of Porto Santo. In this paper, we conduct a data analysis of real-world charging data of 20 electric vehicles operated on the island of Porto Santo. We provide insights into the charging behavior of different users and analyze the opportunity of smart charging for better renewable grid integration using linear optimization models. The data analysis shows that drivers prefer home rather than publicly available charging stations, flexible charging events occur mostly overnight and the charging flexibility of the fleet decreases over the project duration. With regard to make charging more flexible, we can see that smart charging can help to raise the share of electricity generated by renewable energy sources for charging the electric vehicles to up to 33{\%}.

@inproceedings{10.1007/978-3-030-73585-2_13, abstract = {The penetration of battery electric vehicles is increasing. Due to their ability to store electrical power and to shift charging events, they offer a wide range of opportunities with regard to renewable grid integration and lowering the overall CO2 emissions. This is particularly evident for isolated microgrids, such as the Portuguese island of Porto Santo. In this paper, we conduct a data analysis of real-world charging data of 20 electric vehicles operated on the island of Porto Santo. We provide insights into the charging behavior of different users and analyze the opportunity of smart charging for better renewable grid integration using linear optimization models. The data analysis shows that drivers prefer home rather than publicly available charging stations, flexible charging events occur mostly overnight and the charging flexibility of the fleet decreases over the project duration. With regard to make charging more flexible, we can see that smart charging can help to raise the share of electricity generated by renewable energy sources for charging the electric vehicles to up to 33{\%}.}, address = {Cham}, author = {Strobel, Leo and Schlund, Jonas and Brandmeier, Veronika and Schreiber, Michael and Pruckner, Marco}, booktitle = {Sustainable Energy for Smart Cities}, editor = {Afonso, Jo{\ a}o L. and Monteiro, Vitor and Pinto, Jos{\'e} Gabriel}, keywords = {strobel}, pages = {200–215}, publisher = {Springer International Publishing}, title = {Smart Charging and Renewable Grid Integration - A Case Study Based on Real-Data of the Island of Porto Santo}, year = 2021 }

%0 Conference Paper %1 10.1007/978-3-030-73585-2_13 %A Strobel, Leo %A Schlund, Jonas %A Brandmeier, Veronika %A Schreiber, Michael %A Pruckner, Marco %B Sustainable Energy for Smart Cities %C Cham %D 2021 %E Afonso, Jo{\~a}o L. %E Monteiro, Vitor %E Pinto, Jos{\'e} Gabriel %I Springer International Publishing %P 200--215 %T Smart Charging and Renewable Grid Integration - A Case Study Based on Real-Data of the Island of Porto Santo %X The penetration of battery electric vehicles is increasing. Due to their ability to store electrical power and to shift charging events, they offer a wide range of opportunities with regard to renewable grid integration and lowering the overall CO2 emissions. This is particularly evident for isolated microgrids, such as the Portuguese island of Porto Santo. In this paper, we conduct a data analysis of real-world charging data of 20 electric vehicles operated on the island of Porto Santo. We provide insights into the charging behavior of different users and analyze the opportunity of smart charging for better renewable grid integration using linear optimization models. The data analysis shows that drivers prefer home rather than publicly available charging stations, flexible charging events occur mostly overnight and the charging flexibility of the fleet decreases over the project duration. With regard to make charging more flexible, we can see that smart charging can help to raise the share of electricity generated by renewable energy sources for charging the electric vehicles to up to 33{\%}. %@ 978-3-030-73585-2

Leo Strobel M. Sc.

Research Interests

Research projects

Recent Publications

Hinweis zum Datenschutz

Hinweis zum Datenschutz

Bildnachweise