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- Palensky, P. (author) lecture notes 2015
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Latif, Aadil (author), Gawlik, Wolfgang (author), Palensky, P. (author)With increasing photovoltaic (PV) penetration in low voltage networks (LVNs), voltage regulation is a challenge. Active power curtailment (APC) is one possible solution for mitigating over voltages resulting from active power injection in LVNs. There is an inherent unfairness in the APC scheme. When generation is high and consumption is low, the...journal article 2016
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Ullah, Ikram (author), Gawlik, Wolfgang (author), Palensky, P. (author)The increasing growth in power demand and the penetration of renewable distributed generations in competitive electricity market demands large and flexible capacity from the transmission grid to reduce transmission bottlenecks. The bottlenecks cause transmission congestion, reliability problems, restrict competition, and limit the maximum...journal article 2016
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Shahzad, Mohsin (author), Ahmad, Ishtiaq (author), Gawlik, Wolfgang (author), Palensky, P. (author)This paper presents novel separate methods for finding optimal locations, sizes of multiple distributed generators (DGs) simultaneously and operational power factor in order to minimize power loss and improve the voltage profile in the distribution system. A load concentration factor (LCF) is introduced to select the optimal location(s) for DG...journal article 2016
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Praus, Friedrich (author), Kastner, Wolfgang (author), Palensky, P. (author)With today’s ongoing integration of heterogeneous building automation systems, increased comfort, energy efficiency, improved building management, sustainability as well as advanced applications such as active & assisted living scenarios become possible. These smart homes and buildings are implemented as decentralized systems, where embedded...journal article 2016
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Ma, M. (author), Herdeiro Teixeira, A.M. (author), van den Berg, Jan (author), Palensky, P. (author)Low-voltage distribution grids experience a rising penetration of inverter-based, distributed generation. In order to not only contribute to but also solve voltage problems, these inverters are increasingly asked to participate in intelligent grid controls. Communicating inverters implement distributed voltage droop controls. The impact of...journal article 2017
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Widl, Edmund (author), Spiegel, Michael (author), Moyo, Cyndi (author), Strasser, Thomas (author), van der Meer, A.A. (author), Palensky, P. (author), Bhandia, R. (author), Emhemed, A. (author), Syed, M. (author), Gehrke, Oliver (author), Morales Bondy, D. E. (author), Steinbrink, C (author), Blank, M. (author), Stathakis, A. (author), Sarris, T. (author), Kotsampopoulos, Panos (author), Akroud, N. (author), Sagarduy, I. O. (author), Nguyen, V. H. (author), Moneta, D. (author), Sandroni, C. (author), Corti, S. (author), Uski, S. (author), Matti, L. (author), Chodura, P. (author), Brandl, R. (author), Tran, Q. T. (author), Lazpita, B. (author), Delaplagne, T. (author)Work package JRA2 focuses on the development of advanced simulation-based methods to checkand validate smart grid scenarios, configurations and corresponding applications. The main aim isto employ offline simulation of scenarios where a combination of parallel processing, advanced optimization techniques, and design-of-experiments is used to...report 2017
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Cvetkovic, M. (author), Krishnappa, H. (author), López, Claudio (author), Bhandia, R. (author), Rueda, José L. (author), Palensky, P. (author)This paper discusses and compares two approaches to address technical challenges in performing collaborative studies of power system dynamics. On one side, we consider the model migration approach which is an essential piece of dynamic model exchange. On the other side, we look at the co-simulation approach which is used to couple simulation...conference paper 2017
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de Jong, M.A. (author), Papaefthymiou, G. (author), Palensky, P. (author)In this paper, a risk-based security assessment methodology is presented, which allows the assessment of operational security of a power system’s future state under uncertainty deriving from varying topology scenarios (contingencies) and forecast errors (loads and renewable infeeds). The methodology models input uncertaintywith a copula function...journal article 2018
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Cvetkovic, M. (author), Palensky, P. (author)Cyber-threats are challenging the resilience of power systems in ways uncommon to ‘classic’ operational risks of equipment failures and natural disasters. As an example, consider an attacker who monitors operator actions after a cyber-attack and who persistently blocks any operator attempt to mitigate the impact of the attack. Such immediate...other 2018
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Müller, Sven Christian (author), Georg, Hanno (author), Nutaro, James J. (author), Widl, Edmund (author), Deng, Yi (author), Palensky, P. (author), Awais, Muhammad U. (author), Chenine, Moustafa (author), Küch, Markus (author), Stifter, Matthias (author), Lin, Hua (author)With the transition towards a smart grid, the power system has become strongly intertwined with the information and communication technology (ICT) infrastructure. The interdependency of both domains requires a combined analysis of physical and ICT processes, but simulating these together is a major challenge due to the fundamentally different...journal article 2018
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Steinbrink, C. (author), van der Meer, A.A. (author), Cvetkovic, M. (author), Babazadeh, D. (author), Rohjans, S. (author), Palensky, P. (author), Lehnhoff, S. (author)Evaluating new technological developments for energy systems is becoming more and more complex. The overall application environment is a continuously growing and interconnected cyber-physical system so that analytical assessment is practically impossible to realize. Consequently, new solutions must be evaluated in simulation studies. Due to...journal article 2018
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Pan, K. (author), Herdeiro Teixeira, A.M. (author), López, Claudio (author), Palensky, P. (author)It is challenging to assess the vulnerability of a cyber-physical power system to data attacks from an integral perspective. In order to support vulnerability assessment except analytic analysis, suitable platform for security tests needs to be developed. In this paper we analyze the cyber security of energy management system (EMS) against data...conference paper 2018
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Kulkarni, Raunak R. (author), Khuntia, S.R. (author), Joseph, A. (author), Rueda, José L. (author), Palensky, P. (author)A substantial increase in renewable energy in-feed to the primary grid as well as demand growth poses a challenge for transmission system operators (TSOs) to perform maintenance activities while addressing security of supply. A computationally efficient outage scheduling algorithm which is customizable in terms of area and time selection is...conference paper 2018
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van der Meer, A.A. (author), Steinbrink, Cornelius (author), Heussen, Kai (author), Morales Bondy, Daniel E. (author), Degefa, Merkebu Z. (author), Andrén, Filip Pröstl (author), Strasser, Thomas I. (author), Lehnhoff, Sebastian (author), Palensky, P. (author)The complex and often safety-critical nature of cyber-physical energy systems makes validation a key challenge in facilitating the energy transition, especially when it comes to the testing on system level. Reliable and reproducible validation experiments can be guided by the concept of design of experiments, which is, however, so far not...conference paper 2018
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Mola Jimenez, Jorge (author), Rueda, José L. (author), Perilla Guerra, A.D. (author), Wang, D. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author)The deployment of variable renewable energy based power plants is increasing all over the world, however, unlike conventional power plants these are mostly connected to the grid via power electronic interfaces. High penetration of power electronic interfaced generation (PEIG) has an important impact on the inertia of the system, which is of...conference paper 2018
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Sánchez, Francisco (author), Gonzalez-Longatt, Francisco (author), Rueda, José L. (author), Palensky, P. (author)The growth of vehicle electrification is driven by the desire to reduce environmental pollution, and it is fueled by advancements in battery technology. If left unmanaged, electric vehicle (EV) charging will increase peak demand and put a strain on the electricity networks. However, if properly managed, EVs can provide useful services to the...conference paper 2018
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Zhang, H. (author), Peng, Minfang (author), Palensky, P. (author)Complex network theory is introduced to solve the islanding problem in an emergency of distribution networks. In this study, the authors put forward an intentional islanding method based on community detection. In this method, a new index has been defined called electrical edge betweenness, on the strength of edge betweenness in complex networks...journal article 2018
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Joseph, A. (author), Cvetkovic, M. (author), Palensky, P. (author)Predictive mitigation of undesired events has long been seen as a supportive complement to corrective mitigation that could relax the stringent requirements on the corrective<br/>actions and increase reliability of the overall system. This article describes one such predictive measure, i.e. the use of faster than real-time simulation in...conference paper 2018
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Joseph, A. (author), Cvetkovic, M. (author), Palensky, P. (author)Predictive analysis of post fault system dynamic behavior can be a vital resource for better control and reliability improvement of the overall system. This article presents methods for predictive analysis of Fault Induced Dynamic Voltage Recovery (FIDVR) event using a faster than real-time digital replica of a power system. The methods proposed...conference paper 2018