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Mostrando ítems 1-10 de 43
Artículo
Steady-state model for the three-leg shunt-series ac-link power flow controller
(IET (Institution of Engineering and Technology), 2015)
Shunt-series ac links constitute a class of so-called vector switching converters, capable of controlling power flows by synthesising an adjustable series voltage. A novel steady-state model for the recently introduced ...
Artículo
Assessment of conductor thermal models for grid studies
(The Institution of Engineering & Technology, 2007)
: Existing EMS applications resort to static network models built upon constant resistances whose values are specified beforehand. However, the steady-state thermal balance of overhead conductors requires that ohmic ...
Artículo
Distributed consensus-based secondary control of multi-terminal DC railway systems
(Elsevier, 2023-06)
Electrification of the transportation sector is one of the main pillars of the future decarbonized society. In this context, high-speed railway corridors are expected to reduce as much as possible their environmental impact ...
Artículo
A Hybrid Procedure Including Subtransmission Systems and Substations for Reliability Assessment
(IEEE Xplore Digital Library, 2013)
A new procedure focused on reliability analysis of subtransmission systems supported by the state enumeration technique is presented. This new methodology is conducted in three stages. First, a classical state enumeration ...
Artículo
Integrated simulation of electromechanical and thermal dynamics of voltage source converters
(Elsevier, 2024-01)
This paper proposes a simplified yet accurate enough thermal model of Voltage Source Converters (VSC), aimed at circumventing the high computational cost of existing models, which prevents their use in electromechanical ...
Artículo
A Comparison Between Kalman Filters and STDFT for Harmonic Estimation in Power Systems
(World Scientific and Engineering Academy and Society (WSEAS), 2005)
This paper presents a comparison between Kalman filter and the running DFT for the computation of harmonics in power systems applications. The performance of both filters is compared for events like voltage dips or those ...
Artículo
The Spanish Experience: Squeezing Line Ampacities Through Dynamic Line Rating
(Institute of Electrical and Electronics Engineers, 2023-01)
Dynamic Line Rating (DLR), also known in some instances as real-time thermal rating , is becoming a key component of modern energy management systems for transmission system operators (TSOs) or independent system operators ...
Artículo
A holistic state estimation framework for active distribution network with battery energy storage system
(IEEE, 2022)
Battery energy storage systems (BESSs) are expect‐ ed to play a crucial role in the operation and control of active distribution networks (ADNs). In this paper, a holistic state esti‐ mation framework is developed for ...
Artículo
Grid-forming VSC control in four-wire systems with unbalanced nonlinear loads
(Elsevier, 2017)
A grid-forming voltage source converter (VSC) is responsible to hold voltage and frequency in autonomous operation of isolated systems. In the presence of unbalanced loads, a fourth leg is added to provide current path for ...
Artículo
Ancillary Services in Hybrid AC/DC Low Voltage Distribution Networks
(MDPI, 2019-09)
In the last decade, distribution systems are experiencing a drastic transformation with the advent of new technologies. In fact, distribution networks are no longer passive systems, considering the current integration ...