Browsing by Author "Díaz González, Francisco"
Now showing items 1-20 of 24
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A comparison of power conversion systems for modular battery-based energy storage systems
(Institute of Electrical and Electronics Engineers (IEEE), 2020-02-07)
Article
Open AccessA 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 mathematical model for the scheduling of virtual microgrids topology into an active sistribution network
(Multidisciplinary Digital Publishing Institute, 2020-10-15)
Article
Open AccessThis article presents a method based on a mathematical optimization model for the scheduling operation of a distribution network (DN). The contribution of the proposed method is that it permits the configuration and operation ... -
A power sharing algorithm for a hybrid energy storage system based on batteries
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessThis paper presents a method to operate a hybrid Energy Storage System (ESS) based on a heterogeneous grouping of battery types. In particular, the system is composed by a lithium-ion battery pack and a lead-acid one. The ... -
A review of energy storage technologies for large scale photovoltaic power plants
(2020-09-15)
Article
Restricted access - publisher's policyEnergy storage can play an essential role in large scale photovoltaic power plants for complying with the current and future standards (grid codes) or for providing market oriented services. But not all the energy storage ... -
Analytical dead-band compensation for ZCS modulation applied to hybrid Si-SiC dual active bridge
(Institute of Electrical and Electronics Engineers (IEEE), 2020-10-02)
Article
Open AccessThis paper proposes a triangular modulation with zero current switching (ZCS) for a hybrid Si-SiC isolated bidirectional DC-DC converter (IBDC). Three of the four legs in the IBDC operate at ZCS and use Si IGBTs, while the ... -
Arquitectura de una red inteligente rural
(2015)
Conference lecture
Open AccessEl trabajo presentado se enmarca en e l proyecto europeo del programa FP - 7 Smart Rural Grid que tiene como objetivo desarrollar la red rural inteligente y explorar las mejores maneras de hacer la transición de las actuales ... -
Coordinated operation of wind turbines and flywheel storage for primary frequency control support
(2015-06-01)
Article
Open AccessThis work assesses the participation of wind power plants in primary frequency control support. To participate in frequency control-related tasks, the wind power plants have to maintain a certain level of power reserves. ... -
Demonstration experience of the smart rural grid project
(2016)
Conference lecture
Restricted access - publisher's policyThis paper aims to detail and illustrate the experiences for the grid-connected mode during the operational phase of the Smart Rural Grid (SRG) project. The SRG project is focused on DSO's capabilities to increase the ... -
Design methodology for a dc–dc power conversion system with EIS capability for battery packs
(2018-09-01)
Article
Open AccessThis paper presents a design methodology for a dc-dc power conversion system (PCS) for battery packs. The methodology provides with an optimal design of the PCS and the associated inductive-capacitive filter interfacing ... -
DFIG-based offshore wind power plant connected to a single VSC-HVDC operated at variable frequency: Energy yield assessment
(2015-06-15)
Article
Open AccessThe existence of HVDC (High Voltage Direct Current) transmission systems for remote offshore wind power plants allows devising novel wind plant concepts, which do not need to be synchronized with the main AC grid. This ... -
Feasibility analysis of offshore wind power plants with DC collection grid
(2015-06-01)
Article
Open AccessOffshore wind power plants (OWPPs) tend to be larger in size and distant from shore. It is widely accepted that for long distances HVDC links are preferred over HVAC transmission. Accordingly, one possible approach might ... -
Flicker mitigation by reactive power control in wind farm with doubly fed induction generators
(2014-02)
Article
Restricted access - publisher's policyThis 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 ... -
Integral approach to energy planning and electric grid assessment in a renewable energy technology integration for a 50/50 target applied to a small island
(2019-01-01)
Article
Open AccessThis paper presents an energy planning, a grid assessment, and an economic analysis, considering three growing scenarios (Low, Base and High) in the electricity consumption, to supply the energy demand for a hybrid power ... -
Local performance of the smart rural grid through the local energy management system
(2017)
Conference report
Restricted access - publisher's policyThis paper aims to detail and illustrate the operation of the LEMS during the grid-connected and grid-disconnected mode of the Smart Rural Grid (SRG) project. The SRG project is focused on DSO’s capabilities to increase ... -
Methodology for the economic optimisation of energy storage systems for frequency support in wind power plants
(2015-01-01)
Article
Open AccessThis paper proposes a methodology for the economic optimisation of the sizing of Energy Storage Systems (ESSs) whilst enhancing the participation of Wind Power Plants (WPP) in network primary frequency control support. The ... -
Microgrid clustering architectures
(2018-02-15)
Article
Restricted access - publisher's policyMicrogrids are considered one of the most promising solutions to integrate renewable distributed generation into the electric power system. During the last decade, the microgrid concept has been studied and developed and ... -
Modeling and validation of a flywheel energy storage lab-setup
(2012)
Conference report
Open AccessThis work deals with the modeling, control and experimental validation of a flywheel test bench which is part of IREC’s lab-scale microgrid. The storage device has been designed as a proof of concept. It is based on a ... -
Modelización y control de una pinza de soldadura industrial
(Universitat Politècnica de Catalunya, 2009-09)
Master thesis (pre-Bologna period)
Open AccessEl presente proyecto trata sobre la modelización y el control de la fuerza aplicada (de compresión), sobre unas piezas a soldar por una pinza de soldadura industrial. La tecnología de soldaduras prescribe en algunos casos ... -
Optimization of the operation of smart rural grids through a novel rnergy management system
(2018-01)
Article
Open AccessThe paper proposes an innovative Energy Management System (EMS) that optimizes the grid operation based on economic and technical criteria. The EMS inputs the demand and renewable generation forecasts, electricity prices ... -
Primer examen parcial
(Universitat Politècnica de Catalunya, 2017-04-07)
Exam
Restricted access to the UPC academic community
