Exploració per tema "Voltage control"
Ara es mostren els items 26-42 de 42
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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. ... -
Parameter-independent battery control based on series and parallel impedance emulation
(Institute of Electrical and Electronics Engineers (IEEE), 2019-05-29)
Article
Accés obertAppropriate voltage control is essential in order to extend the useful life of a battery. However, when universal chargers are used, the design of this control becomes more complicated, given the fact that the battery ... -
Phasor modeling approaches and simulation guidelines of voltage-source converters in grid-integration studies
(Institute of Electrical and Electronics Engineers (IEEE), 2022-05-13)
Article
Accés obertWith the large integration of converter-interfaced generation (CIG) and widespread of power electronic interfaced technologies, power system dynamic behaviour is becoming progressively faster. As a consequence, is often ... -
PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags
(2018-10-25)
Article
Accés obertIn the recently deregulated power system scenario, the growing number of distributed generation sources should be considered as an opportunity to improve stability and power quality along the grid. To make progress in this ... -
Positive and Negative Sequence Control Strategies to Maximize the Voltage Support in Resistive-Inductive Grids During Grid Faults
(2017-07-27)
Article
Accés obertGrid faults are one of the most severe perturbations in power systems. During these extreme disturbances, the reliability of the grid is compromised and the risk of a power outage is increased. To prevent this issue, ... -
Remote multi-nodal voltage unbalance compensation in islanded AC microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2024-03)
Article
Accés restringit per política de l'editorialMicrogrids (MG) are exposed to voltage quality deterioration due to the presence of voltage unbalance. To deal with this problem, existing solutions based on Distributed Generation (DG) units interfaced by power electronics ... -
Robust repetitive control of power inverters for standalone operation in DG systems
(2020-03-01)
Article
Accés obertStandalone operation of an inverted-based distributed generation unit is performed in voltage control mode. In this mode, it is important that the controller provides tracking and rejection of periodic signals. Strategies ... -
Secondary switched control with no communications for islanded microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2017-05-12)
Article
Accés obertFlexibility and reliability of AC microgrids are enhanced by reducing the dependence on communications in multi-layer hierarchical control. In this sense, this paper presents a secondary control with no communications for ... -
Series interline DC/DC current flow controller for meshed HVDC grids
(2017-07-30)
Article
Accés restringit per política de l'editorialThis paper proposes a DC/DC Current Flow Controller (CFC) for meshed High Voltage Direct Current (HVDC) grids. The CFC has the advantage of a simplified structure that allows to use minimum number of switches when ... -
Sliding mode control of LCL full-bridge rectifiers
(2016-07-01)
Capítol de llibre
Accés restringit per política de l'editorialIn control theory, sliding mode control, or SMC, is a nonlinear control method that alters the dynamics of a nonlinear system by application of a discontinuous control signal that forces the system to "slide" along a ... -
Sliding-mode control for a three-phase unity power factor rectifier operating at fixed switching frequency
(2015-02-11)
Article
Accés obertThis paper presents an improved variable hysteresisband current-control in natural frame for a three-phase unity power rectifier. The proposed control algorithm is based on three decoupled sliding-mode controllers combined ... -
Small signal stability analysis of offshore AC network having multiple VSC-HVDC system
(2017-07-11)
Article
Accés restringit per política de l'editorialThis article presents a small signal analysis of an offshore AC network to integrate offshore wind energy with the main AC grid at shore through more than one VSC-HVDC transmission system. The offshore AC network reference ... -
Techno-economic assessment of flexibility options versus grid expansion in distribution grids
(2021-01-01)
Article
Accés obertIn this paper five different flexibility options are analysed from a techno-economic perspective as alternatives to traditional grid expansion for a specific distribution grid in Germany. The options are: two reactive power ... -
Two Families of Sliding Mode Controllers for a Doubly-Fed Induction Generator in a Isolated Generation System
(Institute of Electrical and Electronics Engineers (IEEE), 2007-05)
Article
Accés obertEn este artículo se considera el control en modo de deslizamiento (SMC1) de un generador de inducción doblemente alimentado (DFIG) que suministra a una carga RL aislada, en un sistema de generación de velocidadvariable/f ... -
VCO phase noise and sideband spurs due to substrate noise generated by on-chip digital circuits
(Institute of Electrical and Electronics Engineers (IEEE), 2006)
Text en actes de congrés
Accés obertThis paper presents the effects of noise generated by realistic digital circuits on RF voltage controlled oscillators (VCO) integrated in the same silicon die. The digital noise is coupled through the common substrate and ... -
Voltage control of distribution grids with multi-microgrids using reactive power management
(2015)
Article
Accés obert