Especially in the case of frequently used vehicles or even fleets, short charging times and the associated shortest possible standing times are necessary. For some years now, inductive charging systems have been developed that promise a massive increase in customer acceptance of electric and hybrid vehicles. The first standards and norms have emerged that form the basis for today's systems with charging capacities around three kilowatts (kW). However, charging times with these charging powers are very high, as this power class was primarily developed for home use with regard to overnight charging. Fast charging systems are needed specifically for public sector and fleet operations (in the non-public sector). Accordingly, the further development of standards and norms towards fast charging inductive charging has already begun. Inductive charging offers another advantage in terms of on-demand charging infrastructure. In the long term, inductive charging in conjunction with automated parking can save charging spaces and increase economic efficiency.
The overall objective of the project is to develop a standard-compatible, fast charging, inductive charging system with at least 22 kW in order to create demand-oriented charging infrastructure for fleets. In this context, demand-oriented means that the number of charging points is reduced to the real need in order to keep infrastructure costs as low as possible. The fast charging infrastructure to be developed is downward compatible and thus enables access for all vehicle types. For this purpose, a fast charging inductive system will be developed.
In addition to the development of the inductive charging system, its grid and system integration plays an important role. Optimal grid and system integration will play an increasingly important role in the future as the penetration of the charging infrastructure increases. The goal of system and grid integration for the charging infrastructure is, on the one hand, to keep the need for grid expansion as low as possible with grid-oriented approaches. On the other hand, the goal of generation-oriented approaches is to operate the fleet as economically and ecologically as possible. The goal of the field tests is to test the inductive charging system in real operation and to compare inductive and conductive charging behavior in order to draw appropriate recommendations for action.
The project is basically divided into three modules.
Module 1 involves the development and implementation of the inductive charging system. The development of approaches for grid and system integration as well as their investigations on the basis of simulations and in the laboratory form Module 2. These two modules form the basis for Module 3. This is a field test in which the inductive charging system and the integration approaches from module 2 are tested in real operation.
The elenia Institute for High Voltage Technology and Power Systems of the Technische Universität Braunschweig, with two professors and 30 scientific staff, conducts research on components of energy supply, electromobility and the topic of active distribution grids. Aspects of energy management such as metering and measuring, the development of operating strategies and the control of plants are just as much in focus as the grid integration of decentralized generation and storage units as well as new consumers such as electric vehicles.
The Institute for Electrical Machines, Traction and Drives (IMAB) was founded in 1920 and is thus one of the oldest institutes at the TU Braunschweig. For decades, the focus was on the calculation and design of electrical machines. Today, this work is complemented by the field of power electronics, so that holistic research and teaching on energy conversion can be carried out at IMAB.
INTIS - Integrated Infrastructure Solutions GmbH is headquartered in Hamburg and was founded in December 2011 as a subsidiary of IABG mbH.
Various growth markets in the areas of mobility, energy and the environment are served with the operating facility and the company's own test facilities in Lathen, Emsland. The focus is on infrastructure solutions for future transportation systems and sustainable energy supplies.
INTIS pursues the objective of optimally utilizing the synergies from the IABG Group and making many years of project experience available to their customers.
In order to align the research project LISA4CL close to practice and application, the executing project partners cooperate with the associated partners.