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Adiyabazar, Choidorj (author), Acosta, Martha N. (author), Gonzalez-Longatt, F. (author), Rueda, José L. (author), Palensky, P. (author)
Mongolia power system (MPS) is evolving quite fast, and the integration of renewable resources (mainly wind power and solar photovoltaic) reached 20% by 2019. The MPS is interconnected to Russia in order to cover local energy deficits, especially during freezing winters. However, the interconnection to Russia is a sensible element of the MPS,...
conference paper 2020
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Acosta, Martha N. (author), Andrade, Manuel A. (author), Vázquez, Ernesto (author), Adiyabazar, Choidorj (author), Gonzalez-Longatt, F. (author), Rueda, José L. (author), Palensky, P. (author)
This research investigates the positive changes in the system frequency response indicators caused by the implementation of a set of optimal settings of an under-frequency load shedding (UFLS) scheme. The optimal under-frequency load shedding (UFLS) scheme is optimised by minimising the total amount of load shedding and taking into account...
conference paper 2020
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Veerakumar, Nidarshan (author), Ahmad, Z. (author), Ebrahim Adabi, M. (author), Rueda, José L. (author), Palensky, P. (author), van der Meijden, M.A.M.M. (author), Gonzalez-Longatt, Francisco (author)
This paper presents a comparative assessment of fast active power regulation (FAPR) control strategies implemented on megawatt-scale controllable electrolysers, with the goal of achieving enhanced frequency support during large active power imbalances that lead to major under-frequency deviations. The FAPR control strategies consist of three...
conference paper 2020
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Peyghami, S. (author), Blaabjerg, Frede (author), Rueda, José L. (author), Palensky, P. (author)
Power electronic converters are one of failure sources in energy systems, and hence drivers of downtime costs in power systems. Different approaches can be employed for converter reliability enhancement including design/control for reliability methods, condition monitoring and fault diagnosis, and maintenance strategies. This paper proposes...
conference paper 2020
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Boricic, Aleksandar (author), Rueda, José L. (author), Popov, M. (author)
Renewable energy sources (RES) penetrate power grids at all voltage levels. A large number of RES units are connected to medium-voltage (MV) and low-voltage (LV) levels resulting in a significant share of overall generation. Therefore, the dynamic behavior of such distribution grids should be thoroughly examined. The goal of this paper is to...
conference paper 2020
document
Adiyabazar, Choidorj (author), Acosta, Martha N. (author), Gonzalez-Longatt, Francisco (author), Rueda, José L. (author), Palensky, P. (author)
The Mongolian power system (MPS) has been changing in recent years mainly by the integration of wind power and solar photovoltaic sources which until 2019 has been reached a 20% of the total generation sources. The interconnection with the Russian power system is crucial from the frequency control and stability point of view, especially during...
conference paper 2020
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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
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Ayala, P. Lozada (author), Rueda, José L. (author), Koreman, C. G.A. (author), van der Meijden, M.A.M.M. (author)
To meet the goals of the Paris Agreement, the Netherlands is integrating large amounts of offshore wind energy into the power system and has ambitious plans for the coming years. A grid topology with transmission capacity above 1 GW connecting offshore wind farms (OWFs) at distances close to 100 km in a standardized, modular, and cost...
conference paper 2019
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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
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Rueda, Ana (author), Cagigal, Laura (author), Anderson, Dylan (author), Storlazzi, Curt (author), van Dongeren, Ap (author), Pearson, S.G. (author), Marra, John (author), Ruggiero, Peter (author), Mendez, Fernando J. (author)
The assessment of coastal flood risk on a reef-lined coastline presents several challenges. From the probabilistic side, we need to consider all possible events that could occur in the system, taking into account the different contributions of waves, storm surges, and tides that contribute to the total water level. To estimate reliable flood...
conference paper 2019
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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
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Sanchez, F. (author), Gonzalez-Longatt, Francisco (author), Rueda, José L. (author)
Low inertia power systems experience more extreme frequency dynamics immediately after a disturbance. A higher rate of change of frequency (ROCOF) contributes to a lower frequency nadir which could trigger load shedding schemes. Active power injections in a time frame of two seconds or less are necessary to maintain frequency stability. This...
conference paper 2019
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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
Kifetew, Fitsum (author), Devroey, Xavier (author), Rueda, Urko (author)
We report on the results of the seventh edition of the JUnit tool competition. This year, four tools were executed on a benchmark with (i) new classes, selected from real-world software projects, and (ii) challenging classes from the previous edition. We use Randoop and manual test suites from the projects as baselines. Given the interesting...
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
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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
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
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Suárez, Víctor García (author), Rueda, José L. (author), Tuinema, B.W. (author), Perilla Guerra, A.D. (author), van der Meijden, M.A.M.M. (author)
This paper investigates the viability of the integration of demand side response of large scale electrolyser facilities into electrical ancillary services markets. A review of the current structure and mechanisms of balancing markets, voltage control and congestion management in the Netherlands is presented, taking into consideration future...
conference paper 2018
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Ayivor, P.K.S. (author), Rueda, José L. (author), van der Meijden, M.A.M.M. (author), van der Pluijm, R (author), Stouwie, B (author)
This paper provides an overview on implementing practical models of large scale electrolysers (>1MW) for real time digital simulation. The search for new sources of ancillary services has aroused considerable interest in the use of large scale electrolysers for power system ancillary services. As the number of large scale electrolysers is...
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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