Exploració per tema "Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric"
Ara es mostren els items 1-20 de 294
-
A communication-assisted protection scheme for direct-current distribution networks
(2016-05-27)
Article
Accés obertOne of the major issues associated with the implementation of direct-current distribution systems is the design of a proper protection scheme. The fault current characteristics in direct-current distribution systems are ... -
A communication: assisted protection for MVDC distribution systems with distributed generation
(2015)
Text en actes de congrés
Accés obertIn this paper, a communication-assisted protection scheme is proposed for medium voltage dc (MVDC) distribution networks. MVDC grids are applicable for connection between microgrids, upgrading the transmission capacity of ... -
A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter
(2016)
Text en actes de congrés
Accés obertGrid connected Voltage Source Converters (VSCs) with LCL filters usually have voltage measurements at the filter capacitors, while it can be important to control the active or reactive power injection at the grid-side of ... -
A comparative study of methods for estimating virtual flux at the point of common coupling in grid connected voltage source converters with LCL filter
(2017-08-23)
Article
Accés restringit per política de l'editorialGrid synchronization based on Virtual Flux (VF) estimation allows for control of grid-connected power converter without depending on AC-voltage measurements. This is useful in voltage-sensor-less applications for reducing ... -
A comparison of power conversion systems for modular battery-based energy storage systems
(Institute of Electrical and Electronics Engineers (IEEE), 2020-02-07)
Article
Accés obertA modular battery-based energy storage system is composed by several battery packs distributed among different modules or parts of a power conversion system (PCS). The design of such PCS can be diverse attending to different ... -
A generalized voltage droop strategy for control of multiterminal DC grids
(2015-02)
Article
Accés obertThis paper proposes a generalized voltage droop (GVD) control strategy for dc voltage control and power sharing in voltage source converter (VSC)-based multiterminal dc (MTDC) grids. The proposed GVD control is implemented ... -
A new high-efficiency single-phase transformerless PV inverter topology
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011-01)
Article
Accés obertThere is a strong trend in the photovoltaic inverter technology to use transformerless topologies in order to acquire higher efficiencies combining with very low ground leakage current. In this paper, a new topology, ... -
A new PWM strategy for grid-connected half-bridge active NPC converters with losses distribution balancing mechanism
(2015-01-09)
Article
Accés obertPhotovoltaic systems technological development is driven by the request for higher efficiency and safety. These concerns influence also the choice of the power converter stage. Several topologies have been proposed and ... -
A novel robust sliding mode controller for Half-bridge converter
(2010)
Comunicació de congrés
Accés obertThis paper proposes one novel sliding mode controller for the Half-bridge converter to reduce the line and load disturbance. Based on the bilinear model of the Half-bridge DC/DC converter, the small signal model and the ... -
A photovoltaic three-phase topology to reduce common mode voltage
(2010)
Text en actes de congrés
Accés obertAt the present time most of the photovoltaic (PV) applications require to be integrated to the electrical grid. There are mainly two types of PV systems: with galvanic isolation (transformer) and transformerless. PV ... -
A simulation study of proportional resonant controller based on the implementation of frequency-adaptive virtual flux estimation with the LCL filter
(2015)
Text en actes de congrés
Accés obertThis paper discusses the implementation of proportional resonant (PR) current controllers for a Voltage Source Converter (VSC) with LCL filter which is synchronized to the grid by virtual flux (VF) estimation with inherent ... -
A single leg switched PWM method for three-phase H-bridge voltage source converters
(2009)
Comunicació de congrés
Accés obertThis paper proposes a single leg switched or a hybrid PWM (HPWM) method for three-phase three-level HBridge Voltage Source Converters (3L-HB-VSCs). By means of the proposed modulation, a 3L-HB-VSC can generate the ... -
A stationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions
(2012-01)
Article
Accés restringit per política de l'editorialGrid synchronization algorithms are of great importance in the control of grid-connected power converters, as fast and accurate detection of the grid voltage parameters is crucial in order to implement stable control ... -
Active control based on an estimator for the bus-pumping cancellation in the half-bridge class-d audio power amplifiers
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper is presented a new technique to avoid the distortion generated due to mid point voltage variations on DC-Bus of Class-D Half Bridge audio amplifiers. An usual distortion source on Class-D amplifier is the ... -
Active-Clamp Flyback converter for USB-PD application design and implementation
(Universitat Politècnica de Catalunya, 2021-05-28)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Adaptive droop for control of multiterminal DC bus integrating energy storage
(2015-02-01)
Article
Accés obertMultiterminal dc (MTDC) systems are drawing a lot of interest lately in applications related to distributed generation, especially in those that integrate wind or photovoltaic (PV) generation with energy storage (ES). ... -
Adaptive hysteresis band current control for transformerless single-phase PV inverters
(2009)
Text en actes de congrés
Accés obertCurrent control based on hysteresis algorithms are widely used in different applications, such as motion control, active filtering or active/reactive power delivery control in distributed generation systems. The hysteresis ... -
Adaptive power control of wave energy converters for maximum power absorption under irregular sea-state conditions
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés obertThis paper proposes a novel wave energy converter (WEC) control technique based on an adaptive vector controller for maximum power absorption of the wave energy resource. The proposed controller arises as a suitable solution ... -
Adaptive slope voltage control for distributed generation inverters with improved transient performance
(2019-04-09)
Article
Accés obertReactive power injection in distributed generation inverters is an useful ancillary service for grid supporting purposes. For grid-feeding converters, the slope control method is the most common voltage regulation strategy ... -
ADC module built for an ocean bottom seismometer (OBS)
(2010-12-01)
Article
Accés obertThis paper presents the new data acquisition system designed for autonomous Ocean Bottom Seismometers (OBS) to study the earth dynamics and internal structure. This part is the responsible to acquire the signals from ...