Papers by Matthias Stifter
2013 IEEE Grenoble Conference, 2013
Detailed analysis of the impact of electric vehicles on the distribution grid needs a dynamic mod... more Detailed analysis of the impact of electric vehicles on the distribution grid needs a dynamic model of the charging and discharging process of the battery. The energy demand depends on the driving behavior, e.g., departure/arrival times, distances and routes traveled, and are normally not modeled in power system simulation. Charging algorithms which control the charging power may adversely influence the range. A realistic simulation setup of the electric vehicle's energy demand needs to incorporate transportation simulation, where the discharging is also modeled. To overcome the shortcomings of traditional power system simulation, the dynamically coupled simulation environment presented is able to model the charging and discharging process. Examples show the applications of dynamic simulation: utilization of charging points, intelligent charging management, impact on voltage symmetry and large scale EV activity.
Proceedings of the Third International Conference on Technologies For Interactive Digital Storytelling and Entertainment, 2006
1 ion2s -buero fuer interaction, Ober Ramstädter Straße 96b, Abstract. The U-CREATE project aims ... more 1 ion2s -buero fuer interaction, Ober Ramstädter Straße 96b, Abstract. The U-CREATE project aims at efficient content creation for new technologies, in particular interactive setups, Mixed Reality experiences and location-based services. A graphical authoring tool is developed to allow one to create elaborated contents in a fast and easy way. The present paper introduces the tool and elaborates on its main components, which allow the user to author an interactive story and also to manage the connected interaction devices.
Rigorous analytical analysis of resonant Euler-Bernoulli beams with constant thickness and polynomial width
2014 Ieee International Ultrasonics Symposium, Sep 1, 2014
Interfacing PowerFactory: Co-simulation, Real-Time Simulation and Controller Hardware-in-the-Loop Applications
Power Systems, 2014
IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
This paper describes the process of developing and validating controller concepts by using real-t... more This paper describes the process of developing and validating controller concepts by using real-time simulation capabilities. The process from the proof-of-concept to the prototype and finally to the realization and the advantage of testing in a real-time simulation environment is demonstrated by an example use case in the safety critical domain of electric power systems -the coordinated voltage controller of the DG-DemoNet project. The possibilities and advantages of controller-hardwarein-the-loop (C-HIL) concepts compared to offline simulation are discussed.
Communication Protocols for Power System Automation, in Industrial Communication Technology Handbook, Second Edition
2009 IEEE Power & Energy Society General Meeting, 2009
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
Co-simulation of different domains is the method of choice if specialised tools exist for each do... more Co-simulation of different domains is the method of choice if specialised tools exist for each domain and no monolithic solution is available. Motivated by the need for simulation and emulation of networked smart grid systems with interlinked controller, communication and power hardware components, this paper proposes a solution for loose coupling of heterogeneous components (i.e. continuous and time-triggered subsystems). The focus is on a lightweight message bus, allowing multiple simulators to exchange the same messages like in the real system. The architecture allows fast configuration and easy switching between emulated and real-world components. The solution is applied and verified in the context of a Smart Grid application. Photovoltaic inverters in a distribution grid are coordinated with a central onload tap change transformer in order to keep the grid voltages within the limits set by operation rules.
Mit einem digitalen Rucksack in den medien.welten
Allgegenwärtige Interaktion, 2004
22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013), 2013
where coordinated voltage control is operated for more than half a year.
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Modelling, Simulation and Validation of PV-VRB Systems
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This paper presents an investigation on a grid-connected backup system in terms of its ability to... more This paper presents an investigation on a grid-connected backup system in terms of its ability to perform grid stabilizing actions in low voltage networks. The backup system consists of a PV array, a vanadium redox flow battery (VRB), the consumer load and a battery/energy-management as part of the power conversion unit which controls the system operation. Three modes of operation have been studied in detail: peak shaving, power feed-in and the increasing of self-sufficiency.
Sharing Laboratory Infrastructures for Integrating more Energy from Renewable Sources to the Grid: The FP7 project DERri --- Distributed Energy Resources Research Infrastructure
e & i Elektrotechnik und Informationstechnik, 2014
To analyse the impact of different charging strategies on electric vehicle fleets, a realistic de... more To analyse the impact of different charging strategies on electric vehicle fleets, a realistic demand model has to be simulated. This is done by means of multi-agent micro simulation of the traffic patterns based on statistical data. Additionally the temperature influence has been modelled to determine demand dependency on the season. As a use case the uncontrolled and controlled charging of multi-storage car parks with over 3300 vehicles are compared, when the maximum obtained power from the grid is limited and additional local generation with PV is available. Simulations show that controlled chargingwhile reducing the maximum power from the grid drasticallyhas nearly no negative effect on the resulting charged energy and thus range of the vehicles when departing.
To analyse the impact of different charging strategies on electric vehicle fleets, a realistic de... more To analyse the impact of different charging strategies on electric vehicle fleets, a realistic demand model has to be simulated. This is done by means of multi-agent micro simulation of the traffic patterns based on statistical data. Additionally the temperature influence has been modelled to determine demand dependency on the season. As a use case the uncontrolled and controlled charging of multi-storage car parks with over 3300 vehicles are compared, when the maximum obtained power from the grid is limited and additional local generation with PV is available. Simulations show that controlled chargingwhile reducing the maximum power from the grid drasticallyhas nearly no negative effect on the resulting charged energy and thus range of the vehicles when departing.
2011 IEEE First International Workshop on Smart Grid Modeling and Simulation (SGMS), 2011
Making the best use of low voltage networks will play an important role the in future, because of... more Making the best use of low voltage networks will play an important role the in future, because of the increase of photovoltaic and electric vehicles connected to the households. For better understanding and modeling of low voltage networks, the Power Snap Shot method has been developed. This work describes the principles of the information and communication system to automatically manage the measurement data and analyze the grid models by means of automated load flow simulation.
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Papers by Matthias Stifter