Exploració per tema "Voltage control"
Ara es mostren els items 8-27 de 42
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Complex pole placement control for a three-phase voltage source converter
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertIn this work, a complex-valued controller for a three-phase VSC with an LC output filter is proposed. The system is first transformed into its complex representation with the consequent order reduction and simpler analysis. ... -
Comprehensive Evaluation of Supply Voltage Underscaling in FPGA on-Chip Memories
(IEEE, 2018-12-13)
Comunicació de congrés
Accés obertIn this work, we evaluate aggressive undervolting, i.e., voltage scaling below the nominal level to reduce the energy consumption of Field Programmable Gate Arrays (FPGAs). Usually, voltage guardbands are added by chip ... -
Control of a three-phase active transformer integrating energy storage
(2023-06-12)
Article
Accés obertThe high penetration of distributed energy sources is changing the paradigm of electrical networks control and management. Nowadays, power conversion systems associated to green energy plants are not only required to deliver ... -
Dc voltage droop control design for mmc-based multiterminal hvdc grids
(Institute of Electrical and Electronics Engineers (IEEE), 2020-01-20)
Article
Accés obertThis article addresses the design of the DC voltage droop control in modular multilevel converter (MMC)-based multiterminal HVDC grids. First, two energy-based control approaches, namely classic and cross control, are ... -
Decentralized Robust Frequency Regulation of Multi-terminal HVDC-linked Grids
(Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
Article
Accés obertThis paper proposes a new strategy for optimal grid frequency regulation (FR) in an interconnected power system where regional ac grids and an offshore wind farm are linked via a multi-terminal high voltage direct-current ... -
Distributed reactive power control methods to avoid voltage rise in grid-connected photovoltaic power generation systems
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialA high density of grid-connected photovoltaic (PV) power generation systems is expected to occur in urban areas. The connection of distributed generation (DG) may cause serious problems in the distribution system such ... -
Experimental implementation of a voltage control for a Multiterminal VSC-HVDC offshore transmission system
(2012)
Text en actes de congrés
Accés restringit per política de l'editorial -
Fixed Switching Period Discrete-Time Sliding Mode Current Control of a PMSM
(Institute of Electrical and Electronics Engineers (IEEE), 2017-08-25)
Article
Accés obertA fixed switching period sliding mode control (SMC) for Permanent Magnet Synchronous Machines (PMSMs) is presented. The aim of the paper is to design a SMC that improves the traditional PI based Field Oriented Control (FOC) ... -
Generalized multivariable grid-forming control design for power converters
(2022-03-22)
Article
Accés obertThe grid-forming converter is an important unit in the future power system with more inverter-interfaced generators. However, improving its performance is still a key challenge. This paper proposes a generalized architecture ... -
Grid synchronization of renewable generation systems using synchronous power controllers
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe increasing penetration of renewable energy sources in power systems has increased the amount of generating units employing power electronics as their grid interface, instead of synchronous generators. Their different ... -
Grid-forming loads: can the loads be in charge of forming the grid in modern power systems?
(2022-08-29)
Article
Accés obertModern power systems are facing the tremendous challenge of integrating vast amounts of variable (non-dispatchable) renewable generation capacity, such as solar photovoltaic or wind power. In this context, the required ... -
Hierarchical power control of multiterminal HVDC grids
(2015-04-01)
Article
Accés obertThis article introduces a hierarchical power control structure for Multi-terminal High Voltage Direct Current (MT-HVDC) systems. The presented hierarchy is similar to the control structure used in classical AC transmission ... -
LDO–assisted vs. linear–assisted DC/DC converters: a comprehensive study and comparison
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper deals with a comprehensive study and comparison on the conventional linear-assisted converter and a new structure named, LDO-assisted converter based on a new class-AB LDO regulator instead of the conventional ... -
MCU controlled DC-DC Buck/Boost converter for supercapacitors
(Universitat Politècnica de Catalunya / KTH Royal Institute of Technology, 2012-07-02)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Kungliga Tekniska högskolan[ANGLÈS] This work is focused on DC to DC conversion, what is a crucial function to enable the use of supercapacitors for energy storage. A theoretical study and comparison of methods, algorithms and techniques for software ... -
Modulation and capacitor voltage balancing control of multilevel NPC dual active bridge DC-DC Converters
(Institute of Electrical and Electronics Engineers (IEEE), 2020-04-01)
Article
Accés obertThe present paper provides a solution to operate multilevel dual active bridge (ML-DAB) converters built upon neutral point clamped switching legs in a full-bridge disposition and with any number of levels on either side ... -
Multi input sliding mode control of an autonomous fuel cell-supercapacitor hybrid system
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents the design of a sliding mode control strategy through an input decoupling of an hybrid fuel cell based system. The hybrid system is composed by a fuel cell stack and a Supercapacitors module, connected ... -
Multilevel two quadrant DC/DC converter for regenerative braking in mobile applications
(2011)
Comunicació de congrés
Accés restringit per política de l'editorialIn this paper different cascaded and multilevel topologies are compared for regenerative braking systems using supercapacitors (SC). It shows that the multilevel buck derived topology can beneficiate from both reduced ... -
Multiwideband terahertz communications via tunable graphene-based metasurfaces in 6G networks: Graphene enables ultimate multiwideband THz wavefront control
(Institute of Electrical and Electronics Engineers (IEEE), 2022-06)
Article
Accés obertThe next generation of wireless networks is expected to tap into the terahertz (THz) band (0.1–10 THz) to satisfy the extreme latency and bandwidth density requirements of future applications. However, the development of ... -
Overview of power processing structures for embedding energy storage in PV power converters
(IEEE Computer Society Publications, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialThe level of penetration of grid-connected photovoltaic (PV) systems has grown very quickly in recent years. Nonetheless, network stresses related to the recurrent voltage and frequency oscillations caused by their irregular ... -
Pairing grid-forming VSC filter topologies with voltage control structures
(Elsevier, 2024-01)
Article
Accés obertThis paper focuses on the voltage control of grid-forming Voltage Source Converters (VSCs) connected to AC networks. The work aims to identify the best pairing between voltage control structures and usual ac filter topologies. ...