Exploració per tema "Electric power transmission"
Ara es mostren els items 21-40 de 52
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Fast modeling of lateral modes in BAW resonators with arbitrary in-plane geometry
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Comunicació de congrés
Accés restringit per política de l'editorialThe Transmission Line Matrix (TLM) method is used to model and predict lateral spurious resonances in a BAW resonator. The dispersive characteristics of the main propagating mode, which are defined by the stack of materials, ... -
Flexible converters for meshed HVDC grids: From Flexible AC Transmission Systems (FACTS) to Flexible DC grids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-02-01)
Article
Accés obertFlexible Alternating Current Transmission Systems (FACTS) have achieved to enhance the flexibility of modern AC power systems, by providing fast, reliable and controllable solutions to steer the power flows and voltages ... -
Flicker mitigation by reactive power control in wind farm with doubly fed induction generators
(2014-02)
Article
Accés restringit per política de l'editorialThis paper presents a novel wind farm control with the purpose to mitigate the flicker emission of doubly fed induction generators. The presented control strategy is implemented in a wind farm connected to a distribution ... -
General form of consensus optimization for distributed OPF in HVAC-VSC-HVDC systems
(2020-04-24)
Article
Accés obertIn this paper a distributed algorithm for ensuring Optimal Power Flows in hybrid AC-DC systems is proposed. While centralized OPF formulations require information of many variables of all the network nodes, the present ... -
Guest editorial special section on HVDC systems for large offshore wind power plants
(2016-04)
Article
Accés obertThe papers in this special section focus on HVDC systems for large offshore wind power plants. These plants have experienced an important growth in the last decade and are becoming a key energy source worldwide. Offshore ... -
Impact of converter losses on the optimal power flow solution of hybrid networks based on VSC-MTDC
(2017-10)
Article
Accés obertThis paper studies the impact of voltage source converter (VSC) losses on the solution of the optimal power flow (OPF) of hybrid AC/DC systems with a multi-terminal configuration. The motivation of this analysis is that ... -
Impedance-based analysis of harmonic resonances in HVDC connected offshore wind power plants
(2019-01-01)
Article
Accés obertDuring the last years, the installation and planning of offshore wind farms using HVDC-links to transmit power onshore has increased. After the first HVDC connected offshore wind power plant of this type had been commissioned, ... -
Impedance-based modelling of Hybrid AC/DC grids with synchronous generator for interaction study and dynamic improvement
(2020-02-01)
Article
Accés obertHybrid AC/DC grids are increasingly been seen as the most important network structure for future transmission infrastructures. An emerging challenge to such grids is the constant interaction between various components in ... -
Insights into dynamic tuning of magnetic-resonant wireless power transfer receivers based on switch-mode gyrators
(2018-02-01)
Article
Accés obertMagnetic-resonant wireless power transfer (WPT) has become a reliable contactless source of power for a wide range of applications. WPT spans different power levels ranging from low-power implantable devices up to high-power ... -
Interaction assessment and stability analysis of the MMC-based VSC-HVDC link
(2020-04-21)
Article
Accés obertThis paper investigates the dynamic behavior of a modular multi-level converter (MMC)-based HVDC link. An overall state-space model is developed to identify the system critical modes, considering the dynamics of the master ... -
Mitigation of harmonic interactions by the VSC-HVDC converter in variable networks
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialSystem stability can be affected by the interaction between the converter control and the network resonances. Current installations of VSC-HVDC converters have experienced instability issues due to this interaction and ... -
Modeling and simulation of the transmission system for a chainless electric bicycle
(Universitat Politècnica de Catalunya, 2015-05)
Treball Final de Grau
Accés obertThis project, entitled Modeling and Simulation of the Transmission System for a Chainless Electric Bicycle, consists in the design of the controllers’ logics governing a chainless electric bicycle’s transmission in order ... -
Modelización dinámica y control de un aerogenerador de velocidad variable con una máquina de inducción doblemente alimentada en PSS/E
(Universitat Politècnica de Catalunya, 2010-02)
Projecte/Treball Final de Carrera
Accés obertHoy en d a, debido a la creciente penetraci on de la energ a e olica en la red el ectrica, los Operadores del Sistema de Transmisi on (TSO) se han visto obligados a revisar los requerimientos de conexi on a la red (Grid ... -
Modelling VSCs connected to weak grids
(2019)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper addresses the oscillatory stability phenomena studied in the literature and reported by network operators in grid-connected VSC systems. Negative interactions have been observed at different frequencies in these ... -
Modular multilevel converter losses model for HVdc applications
(2017-05-01)
Article
Accés obertMulti-terminal high voltage dc (HVdc) grids can eventually became a feasible solution to transport energy to remote and/ or distant areas and its exploitation depend, among other things, on the performance of the converter ... -
Novel fault location algorithm for meshed distribution networks with DERs
(2020-04-01)
Article
Accés obertModern electrical networks are continuously evolving due to the increasing deployment of Information Technologies and Distributed Energy Resources (DERs). This scenario affects the quality of the electricity supply of ... -
OPEX of hybrid DC/AC power systems with large penetration of offshore wind taking into account spinning reserves
(2018-10-01)
Article
Accés restringit per política de l'editorialThis study presents a method to analyse the secure and optimal operation of transmission systems consisting of both HVDC (high-voltage direct current) and high-voltage alternating current interconnections under a scenario ... -
Optimal operation of hybrid high voltage direct current and alternating current networks based on OPF combined with droop voltage control
(2018-10)
Article
Accés obertThis study focuses on the operation and control of HVDC multi-terminal systems that transmit the power being generated in offshore wind farms to the terrestrial AC grids. The aim of the paper is to propose and validate an ... -
Optimum voltage control for loss minimization in HVDC multi-terminal transmission systems for large offshore wind farms
(2012-08)
Article
Accés restringit per política de l'editorialAn optimal power flow based control scheme is proposed in order to minimize the losses in multi-terminal HVDC systems for large offshore wind power plants. The scheme optimizes system power flows while delivering the ... -
Power sizing factor design of central inverter PV grid-connected systems: a simulation approach.
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Text en actes de congrés
Accés obertThis paper presents a simulation approach which can help in the preliminary power sizing design of a gridconnected PV system based on a single inverter configuration. Given a nominal peak power of the PV array, this ...