A5025456773- Smart Grid Security and Resilience
- Real-time simulation and control systems
- Simulation Techniques and Applications
- Power System Reliability and Maintenance
- Power Systems Fault Detection
- Distributed and Parallel Computing Systems
- Modeling and Simulation Systems
- Islanding Detection in Power Systems
- HVDC Systems and Fault Protection
- Electrical Fault Detection and Protection
- Smart Grid Energy Management
- Microgrid Control and Optimization
- Optimal Power Flow Distribution
- Power System Optimization and Stability
- Power Transformer Diagnostics and Insulation
- Power Systems and Technologies
- Experimental Learning in Engineering
- Scientific Computing and Data Management
- Neural Networks and Applications
- Sensor Technology and Measurement Systems
- Power Quality and Harmonics
- Nuclear and radioactivity studies
Delft University of Technology
2017-2024
Sentient Science (United States)
2022
Laboratoire de Génie Électrique de Grenoble
2015
A High Impedance Fault (HIF) in the power distribution systems remains mostly undetected by conventional protection schemes due to low fault currents. Apart from degrading reliability of supply customers, HIF can impose a high cost on utilities technical damages. The nonlinear and asymmetric nature makes its detection identification very challenging. signatures are form minute-level distortions observable AC sinusoidal voltage current waveforms but these do not follow clear pattern. In this...
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...
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....
Anticipating failures is vital for maintaining a reliable power supply. Advanced measurement devices in the grid generate vast data that contains valuable information on operations. Initial signatures of an incipient failure are often reflected this form electrical waveform distortions. Conventional protection schemes not equipped to analyze these distortions and anticipate failures. There considerable research gap simple yet robust universal anticipation diagnosis scheme. This paper...
Distributed energy resources (DERs) have seen significant expansion in utilization over the past decade. This is best observed with rooftop solar panels whose penetration has substantially grown terms of deployed MWs [1]. With transformation grid towards more distributed supply electricity, a new set challenges arise. Although for adoption DERs are plenty which span across technical, economical and policy domain, this paper we discuss simulation within two particular domains, cyber-security...
A High Impedance Fault (HIF) in the power distribution systems remains mostly undetected by conventional protection schemes due to low fault currents. Apart from degrading reliability of supply customers, HIF can impose a high cost on utilities technical damages. The nonlinear and asymmetric nature makes its detection identification very challenging. signatures are form minute-level distortions observable AC sinusoidal voltage current waveforms but these do not follow clear pattern. In this...
High Impedance Fault (HIF)is a low fault current event which cannot always be efficiently detected or cleared by conventional protection systems. Voltage signal distortions are often possible indicator of HIF signatures need to carefully analyzed. This paper proposes new technique based on second-difference approach detect distortions. The does not require large database and is computationally very lightweight. performance the proposed compared against commercial relays connected in...
Deviations from normal power grid operations, such as incipient faults, equipment damage, or weather related effects, have characteristic signatures in the current and voltage waveforms. Detecting classifying signal distortions quick possible can contribute to reliability since events be responded time, i.e. before they lead an outage. This paper proposes a new distortion detection algorithm, based on computationally very lightweight operations. The method does not require large datasets,...
Due to the increased deployment of renewable energy sources and intelligent components electric power system will exhibit a large degree heterogeneity, which requires inclusive multi-disciplinary assessment. The concept co-simulation is very attractive option achieve this; each domain-specific subsystem can be addressed via its own specialized simulation tool. applicability, however, depends on aspects like standardised interfaces, automated case creation, initialisation, scalability itself....
For smart grid assessment one needs to simulate varieties of components in different software environments. However, the existing simulation tools are domain oriented and cannot fulfil this need natively. Therefore, a environment has be established with accordingly accurate models for intra inter-domain elements as well interfaces framework coordination those holistic scenario. This paper presents part development by implementing co-simulation interface PSCAD using mosaik based on functional...
Reliable power supply to the consumers is key goal for utilities. The two reliability indices utilities are SAIDI and SAIFI. These indicate average duration frequency of interruptions consumer. A low value on these reflects a reliable mostly uninterrupted supply. Reliability most threatened by events such as incipient failures that often go undetected conventional protection schemes can significantly increase outage duration. However, initially manifest in terms distortions current voltage...
Continuous and rapid technological advancements have transformed the modern day power system. Increased global inter-connectivity has made reliable supply a critical requirement. A small outage can cascade into blackout causing great inconvenience significant monetary damage. These concerns highlight need of an additional layer proactive approach in conventional protection schemes. The focus such would be to shift from reacting failure anticipating failure. Anticipating gives time better...
Anticipating failures is important for maintaining a reliable power supply. Advanced measurement devices in the grid generate vast amount of data containing valuable information on operations. Initial signatures an incipient failure are often reflected this form electrical waveform distortions. Conventional protection schemes not equipped to analyze these distortions and anticipate failures. There considerable research gap simple yet robust universal anticipation diagnosis scheme. This paper...
Key contributor to normal power grid operations is optimal working of the various equipment/apparatus.Nonoptimal operation any this equipment causes quality problems which can pose great risk stability grid.Damaged or partially damaged leaves characteristic signatures in form current and voltage waveform distortions.Detecting localizing such signal distortions would contribute reliability as could be replaced time before it cause further damage.This paper proposes a Distortion Detection...