A5062873248- Smart Grid Security and Resilience
- Smart Grid Energy Management
- Microgrid Control and Optimization
- Real-time simulation and control systems
- Optimal Power Flow Distribution
- Simulation Techniques and Applications
- Integrated Energy Systems Optimization
- Modeling and Simulation Systems
- Energy Load and Power Forecasting
- Distributed and Parallel Computing Systems
- HVDC Systems and Fault Protection
- Electric Power System Optimization
- Power System Optimization and Stability
- Network Security and Intrusion Detection
- Anomaly Detection Techniques and Applications
- Electric Vehicles and Infrastructure
- Hybrid Renewable Energy Systems
- Business Process Modeling and Analysis
- Advanced Battery Technologies Research
- Power Line Communications and Noise
- Power System Reliability and Maintenance
- Multi-Agent Systems and Negotiation
- Fault Detection and Control Systems
- Information and Cyber Security
- Radiation Effects in Electronics
Technical University of Denmark
2015-2024
Oldenburger Institut für Informatik
2023
Carl von Ossietzky Universität Oldenburg
2023
Data Management (Italy)
2023
Danmarks Nationalbank
2011-2022
Delft University of Technology
2022
Ørsted (Denmark)
2015
University of Copenhagen
2011-2013
Electric Power University
2009
The system-level consideration of intermittent renewable energy sources (RES) and small-scale storage in power systems remains a challenge as either type is incompatible with traditional operation concepts. Noncontrollability constraints are still considered contingent cases market-based operation. design strategies for up to 100% RES requires an explicit nondispatchable generation capacities, well the evaluation operational performance terms efficiency, reliability, environmental impact,...
The integration of smart grid technologies in interconnected power system networks presents multiple challenges for the industry and scientific community. To address these challenges, researchers are creating new methods validation of: control, interoperability, reliability Internet Things systems, distributed energy resources, modern equipment applications covering stability, operation, cybersecurity. Novel laboratory testing electrical systems incorporate novel simulation techniques...
A novel concept for system-level consideration of energy storage in power grids with dispatchable and non-dispatchable generators loads is presented. Grid-relevant aspects such as ratings, ramp-rate constraints, efficiencies, capacities the interconnected units are modeled, while technology-dependent physical unit properties abstracted from. This allows modeling a technologically diverse portfolio unified approach. The can be used designing operation strategies systems, especially presence...
It is well understood that the electric vehicle as a distributed energy resource can provide valuable services to power system. Such services, however, would have co-exist with hard constraints imposed by EV user demands and distribution grid operation constraints. This paper aims address interactions between stakeholders involved, mainly considering congestion problem, conceptualize several approaches which their diverse, potentially conflicting, objectives be coordinated. A key aspect...
In this paper a high level functional architecture for frequency and voltage control the future (2030+) power system is presented. The proposal suggests decomposition of present organization operation into "web cells". Each cell in web managed by single operator who assumes responsibility real-time balance cell, minimizing dependency on inter-cell communication secure operation. web-of-cells ensures overall stability combination decentralized distributed patterns control. each maintains an...
Flexibility resources on the demand side are anticipated to become a valuable asset for balancing renewable energy fluctuation as well reducing investment needs in distribution grids. To harvest this flexibility grids, services need be defined that can integrated with grid operation and provide benefit traded off against other investments. Two key challenges here identification of useful is still ongoing transaction cost individually small contributions from could prohibitive. This paper...
The concept of "indirect control" has become an relevant discussion term in relation to activation distributed and small-scale demand generation units provide resources for power system balancing. its association with price signals has, however caused some confusion as correct definition, either a control or market concept. This paper aims conceptual introduction management small side resources. A review concepts analysis "indirectness" features are provided create framework systematic...
Distributed control strategies applied to power distribution problems are meant offer robust and scalable integration of distributed energy resources (DERs). However, the term "distributed control" is often loosely a variety very different strategies. In particular there lack discrimination between aspects related communication topology, physical components, associated objectives. This has lead objective criteria for performance comparison general quality assessment state art solutions. For...
Large scale integration of fluctuating and non-dispatchable generation variable transmission patterns induce high uncertainty in power system operation. In turn, operators (TSOs) need explicit information about available flexibility to maintain a desired reliability level at reasonable cost. this paper, locational is defined unified framework compare it against forecast introduced. Both metrics are expressed terms ramping rate, energy consider the network constraints. This integrated into...
The gradual deployment of intelligent and coordinated devices in the electrical power system needs careful investigation interactions between various domains involved. Especially due to coupling ICT systems a holistic approach for testing validating is required. Taking existing (quasi-) standardised smart grid test specification methods as starting point, we are developing validation that allows very flexible way assessing level aspects by types experiments (including virtual, real, mixed...
The power flow in distribution grids is becoming more complicated as reverse flows and undesired voltage rises might occur under particular circumstances due to integration of renewable energy sources, increasing the occurrence critical bus voltages. To identify these feeders observability systems has be improved. increase situational awareness system operator data driven methods can employed. These benefit from newly available sources such smart meters. This paper presents a estimation...
Smart energy solutions aim to modify and optimise the operation of existing infrastructure. Such cyber-physical technology must be mature before deployment actual infrastructure, competitive will have compliant standards still under development. Achieving this readiness harmonisation requires reproducible experiments appropriately realistic testing environments. testbeds for multi-domain are complex in themselves. This work addresses a method scoping design where both testbed solution each...
Many new technologies with novel control capabilities have been developed in the context of ldquosmart gridrdquo research. However, often it is not clear how these should best be integrated overall system operation. New operation paradigms change traditional architecture power systems and necessary to identify requirements functions. How does fit old architecture? can functions specified independent technology? What purpose systems? In this paper, a method suitable for semantically...
As future power systems become increasingly complex and interconnected to other energy carriers, a single research infrastructure can rarely provide the required test-beds study complete system, especially if different types of real hardware are expected be in-the-loop. Therefore, virtual interconnection laboratories for large-scale plays an important role geographically distributed realtime simulation. This paper presents improvements made in simulation fidelity as well usability...
This paper presents an approach to extend the capabilities of smart grid laboratories through concept Power Hardware-in-the-Loop (PHiL) testing by re-purposing existing grid-forming converters. A simple and cost-effective power interface, paired with a remotely located Digital Real-time Simulator (DRTS), facilitates Geographically Distributed Hardware Loop (GD-PHiL) in quasi-static operating regime. In this study, DRTS simulator was interfaced via public internet ship-to-shore converter...
The increasing interaction of industrial control systems (ICSs) with public networks and digital devices introduces new cyber threats to power other critical infrastructure. Recent cyber-physical attacks such as Stuxnet Irongate revealed unexpected ICS vulnerabilities a need for improved security measures. Intrusion detection constitute key technology, which typically monitors network data detecting malicious activities. However, central characteristic modern ICSs is the interdependency...
Electric Power system of Denmark exhibits some unique characteristics. An increasing part the electricity is produced by distributed generators (DGs). Most these DGs are connected to network at distribution level. At same time concept vehicle grid (V2G) already in process realization. This situation has created an incentive electric power industry utilize modern information and communication technologies (ICT) for improving automation. paper describes our work on how significantly increased...
Energy Systems are facing a significant change in the way their management and control is conceived. With introduction of distributed renewable energy based resources, shift to more operation paradigm emerging, overturning conventional top-down design principles. This creates demand for systems (DCS) facilitate adaptive efficient power networks. One key challenge here ensure required reliability systems. Whereas proven strategies exist reliable coordination physical actions, with increasing...
Abstract A driving force for the realization of a sustainable energy supply in Europe is integration distributed, renewable resources. Due to their dynamic and stochastic generation behaviour, utilities network operators are confronted with more complex operation underlying distribution grids. Additionally, due higher flexibility on consumer side through partly controllable loads, ongoing changes regulatory rules, technology developments, liberalization markets, system’s needs adaptation....