Searched for: +
(61 - 80 of 89)

Pages

List view
Grid view
document
Peyghami, Saeed (author), Zarei, Seyed Fariborz (author), Ghasemi, Mohammad Amin (author), Palensky, P. (author), Blaabjerg, Frede (author)
Microgrids (MGs) are becoming active segments of future power systems. Frequency regulation inislanded MGs is of high importance to guarantee stable and reliable operation under different loading conditions. This paper proposes a decentralized frequency regulation of AC MGs, which relies on the local information. Comparing to the conventional...
conference paper 2020
document
Rakhshani, E. (author), Veerakumar, Nidarshan (author), Ahmad, Z. (author), Rueda, José L. (author), van der Meijden, M.A.M.M. (author), Palensky, P. (author)
This paper deals with the implementation of a Fast Active Power Injection (FAPI) controller in a Type-4 Wind Turbine. Two different FAPI controllers, droop-based and a modified derivative-based controller are proposed and investigated under real-time simulation platform. The implementation is done in a Real-Time Digital Simulator (RTDS) by...
conference paper 2019
document
Wang, D. (author), Rueda, José L. (author), Perilla Guerra, A.D. (author), Rakhshani, E. (author), Palensky, P. (author), van der Meijden, M. (author)
Due to the power electronic converter based interface and maximum power control strategy, wind generators cannot directly respond to power system transients. This brings new challenges on power system transient stability. Taking wind turbine type 4 (WT4) as one example, this paper analyses its influence on transient stability with respect to...
conference paper 2019
document
Cvetkovic, M. (author), Gusain, D. (author), Palensky, P. (author)
Cossembler (co-simulation assembler) is a rapid prototyping tool for co-simulation. The tool is created to expedite the process of co-simulation development for power and energy system studies targeting user groups of power engineers, energy consultants and grid operators. Instead of focusing on message encoding, transportation and...
conference paper 2019
document
Rueda, José L. (author), Perilla Guerra, A.D. (author), Rakhshani, E. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author), Alefragkis, Alex (author)
The active power gradient (APG) control of MMC-HVDC links can contribute to frequency support in AC networks affected by severe active power imbalances. This functionality is particularly convenient if the coupled AC systems (through MMC-HVDC) have similar levels of available inertia. This paper tackles the problem of determining the optimal...
conference paper 2019
document
Alshehri, F. A. (author), Rueda, José L. (author), Perilla Guerra, A.D. (author), Tuinema, B.W. (author), van der Meijden, M.A.M.M. (author), Palensky, P. (author), Gonzalez-Longatt, F. (author)
The increase in renewable energy sources in addition to the decrease in conventional synchronous generators is leading to significant challenges for the power system operators to maintain generation load balance and to manage the system's decreasing inertia. Proton Exchange Membrane (PEM) fuel cells are characterised by high current density...
conference paper 2019
document
van der Meer, A.A. (author), Bhandia, R. (author), Widl, Edmund (author), Heussen, Kai (author), Steinbrink, Cornelius (author), Chodura, P. (author), Strasser, Thomas I. (author), Palensky, P. (author)
Due to the increased deployment of renewable energy sources and intelligent components the electric power system will exhibit a large degree of heterogeneity, which requires inclusive and multi-disciplinary system assessment. The concept of co-simulation is a very attractive option to achieve this; each domain-specific subsystem can be addressed...
conference paper 2019
document
Rakhshani, E. (author), Rueda, José L. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author)
This paper presents a study based on sensitivity analysis to investigate the impact of fast frequency response (FFR) capability of type 4 wind turbine units on the overall frequency performance of interconnected power systems with low inertia. FFR capability is implemented by means of a control loop for inertia emulation (IE), which is...
conference paper 2019
document
Gusain, D. (author), Cvetkovic, M. (author), Palensky, P. (author)
Energy flexibility is key to integrating more renewables into the grid. An essential contributor to enabling energy flexibility is P2X technologies such a Power2Heat, Power2Gas, among others. To evaluate the flexibility available from these resources and the impact they can have on the electrical grid, complex simulations need to be set up...
conference paper 2019
document
Pan, K. (author), Gusain, D. (author), Palensky, P. (author)
The evolved smart grid has become a cyber physical energy system that could be exposed to a massive amount of cyber threats. Vulnerabilities within the cyber part can be used to launch multiple types of attacks that corrupt the physical system. The complexity of cyber physical energy system, the existing of different kinds of attacks, require...
conference paper 2019
document
Joseph, A. (author), Cvetkovic, M. (author), Palensky, P. (author)
Faster detection of faults, can lead to better and more efficient control of power system against cascading failures triggered by the faults. This article presents a novel detection algorithm using statistical methods for the detection of events that lead to FIDVR. Furthermore we show that the algorithm is computationally efficient and quick...
conference paper 2019
document
Cvetkovic, M. (author), Gusain, D. (author), Palensky, P. (author)
Improved modeling and simulation of power and energy systems has become increasingly important in the face of energy transition. The main challenge is to capture the complexity that heterogeneity of technologies and uncertainty of renewable resources bring along. One approach to improve simulation modeling capabilities, that relies on reusing...
conference paper 2019
document
López, Claudio (author), Cvetkovic, M. (author), Palensky, P. (author)
DIgSILENT PowerFactory is among the most widely adopted power system analysis tools in research and industry. It provides a comprehensive library of device models and it allows users to define their own. Models for dynamic simulation can be defined in the DIgSILENT Simulation Language (DSL). When the functionality of DSL is insufficient, new...
conference paper 2019
document
Vogel, S. (author), Subramaniam Rajkumar, Vetrivel (author), Thi Nguyen, Ha (author), Stevic, M. (author), Bhandia, R. (author), Heussen, Kai (author), Palensky, P. (author), Monti, Antonello (author)
As future power systems become increasingly complex and interconnected to other energy carriers, a single research infrastructure can rarely provide the required test-beds to study a complete energy system, especially if different types of real power hardware are expected to be in-the-loop. Therefore, virtual interconnection of laboratories for...
conference paper 2019
document
Sereeter, B. (author), Vuik, Cornelis (author), Witteveen, C. (author), Palensky, P. (author)
In this paper, we study four equivalent mathematical formulations of the Optimal Power Flow (OPF) problem and their impacts on the performance of solution methods. We show how four mathematical formulations of the OPF problem can be obtained by rewriting equality constraints given as the power flow problem into four equivalent mathematical...
conference paper 2019
document
Bhandia, R. (author), Cvetkovic, M. (author), de Jesus Chavez, Jose (author), Palensky, P. (author)
Key contributor to normal power grid operations is optimal working of the various power grid equipment/apparatus. Nonoptimal operation of any of this equipment causes power quality problems which can pose great risk to the stability of the grid. Damaged or partially damaged equipment leaves characteristic signatures in the form of current and...
conference paper 2019
document
Tuinema, B.W. (author), Ayivor, P.K.S. (author), Garcia Suarez, V. (author), Ebrahim Adabi, M. (author), Liu, L. (author), Rueda, José L. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author)
In the future energy system, hydrogen as an energy carrier will play a role of increasing importance. Electrical energy can be converted into hydrogen locally by electrolysers and stored for a relatively long period. Then, the hydrogen can be used by final consumers like the transportation system or industries, as conceptually illustrated in Fig...
conference paper 2019
document
López, Claudio (author), Cvetkovic, M. (author), Palensky, P. (author)
Given the complexity, scale and heterogeneity of modern power systems, many comprehensive simulation tasks are almost impossible to carry out without collaboration from multiple institutions. One way to approach collaborative simulation is through co-simulation. In this approach each institution contributes a model and the simulation is run...
conference paper 2019
document
Farrokhseresht, N. (author), van der Meer, A.A. (author), Rueda, José L. (author), van der Meijden, M.A.M.M. (author), Palensky, P. (author)
The massive integration of wind power plants into the transmission system calls for a careful scrutinization of their dynamic behaviour and the interactions with the power system in the transient stability time-frame of interest. This paper presents a sensitivity analysis based approach to investigate the impact of full converter wind turbine...
conference paper 2019
document
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
Searched for: +
(61 - 80 of 89)

Pages

List view
Grid view