Browsing by Subject "Electric power systems"
Now showing items 1-20 of 120
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A comprehensive model for the design of a microgrid under regulatory constraints using synthetical data generation and stochastic optimization
(2020-10-26)
Article
Open AccessAs renewable energy installation costs decrease and environmentally-friendly policies are progressively applied in many countries, distributed generation has emerged as the new archetype of energy generation and distribution. ... -
A fast power calculation algorithm for three-phase droop-controlled-inverters using combined SOGI filters and considering nonlinear loads
(2022-10-07)
Article
Open AccessThe power calculation is an indispensable element in droop-controlled inverters because the bandwidth of the measured power has a direct impact on the controller performance. This paper proposes a fast and accurate power ... -
A growing self-organising maps implementation for coherency identification in a power electronics dominated power system
(2020)
Conference lecture
Restricted access - publisher's policyThe presence of power electronics in today’s power systems strengthens due to the wider integration of renewable energy and energy storage systems. Subsequently, the dynamical response becomes harder to model and understand. ... -
A novel design of circulating current control target to minimize SM capacitance in MMC
(2022-12)
Article
Open AccessIn an MMC station, the submodule (SM) capacitor constitutes a high proportion in both the footprint size and construction cost, which greatly limits the application of MMC in some scenarios, such as offshore wind power ... -
A novel voltage sag approach during unintentional islanding scenarios: A survey from real recorded events
(2019-07)
Article
Open AccessIn this paper, a new voltage sag approach is analytically modelled and validated using both simulation and field measurements. The main aspect of this approach is to propose a new voltage sag feature which appears during ... -
A novel voltage sag approach during unintentional islanding scenarios: A survey from real recorded events
(2019)
Conference report
Open AccessIn this paper, a new voltage sag approach is proposed, analytically modelled and validated by both simulation and field measurements. The main aim of this approach is to propose a new voltage sag approach, which appears ... -
A review of tools, models and techniques for long-term assessment of distribution systems using OpenDSS and parallel computing
(2018-01-01)
Article
Open AccessMany distribution system studies require long-term evaluations (e.g. for one year or more): Energy loss minimization, reliability assessment, or optimal rating of distributed energy resources should be based on long-term ... -
Advances in control of power electronic converter connected drive and generation systems
(2022-07)
Article
Open Access -
Analysis of derivative control based virtual inertia in multi-area high-voltage direct current interconnected power systems
(2016-05-12)
Article
Open AccessDue to increasing level of power converter-based component and consequently the lack of inertia, automatic generation control (AGC) of interconnected systems is experiencing different challenges. To cope with this challenging ... -
Analysis of ferroresonance effects in distribution networks with distributed source units
(2013)
Conference report
Restricted access - publisher's policyThe connection of Distributed Generation (DG) units to existing networks may give rise to harmful effects on the network and the DG units itself. Therefore, due to increasing penetration of DG units, it is important to ... -
Anàlisi tecno-econòmica de microxarxes cooperatives residencials amb generació fotovoltaica
(Universitat Politècnica de Catalunya, 2019-11-08)
Bachelor thesis
Open AccessEl present treball realitza un anàlisi sobre la possible implantació d’una micro-xarxa cooperativa residencial al municipi de Sant Esteve de Palautordera, Barcelona. La micro-xarxa estarà basada en la generació fotovoltaica ... -
Averias eléctricas en sistemas distribución media tensión
(Universitat Politècnica de Catalunya, 2018-10)
Bachelor thesis
Restricted access - author's decision -
Bounded synchronization in resistive multi-terminal VSC-HVDC transmission systems
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Restricted access - publisher's policyMulti-terminal VSC-HVDC transmission is a promising solution to transport energy from the generating plants to the distribution stations, and the number and size of the corresponding power grids is expected to increase in ... -
Caracterització i anàlisi del fenomen de les ressonàncies en sistemes elèctrics
(Universitat Politècnica de Catalunya, 2020-02-03)
Bachelor thesis
Open AccessÉs ben sabut que les ressonàncies en sistemes elèctrics poden elevar els valors de voltatge i corrent fins al punt d’arribar a fer malbé els circuits o, fins i tot, destruir-los. En el present treball s’estudia rigorosament ... -
Càlcul de corrents de curtcircuit en xarxes de transport d'energia elèctrica mitjançant PowerWorld
(Universitat Politècnica de Catalunya, 2019-06)
Bachelor thesis
Open Access[CATALÀ] El present projecte té per objectiu instruir en la simulació de curtcircuit mitjançant el programa PowerWorld Simulator. Això servirà com a complement dels estudiants de l'assignatura SIEP (Sistemes Elèctrics de ... -
Centralised and distributed optimization for aggregated flexibility services provision
(Institute of Electrical and Electronics Engineers (IEEE), 2020-07-01)
Article
Open AccessThe recent deployment of distributed battery units in prosumer premises offer new opportunities for providing aggregated flexibility services to both distribution system operators and balance responsible parties. The ... -
Comparative analysis of cold ironing rules
(2017)
Article
Open Access -
Condition monitoring of pump-turbines. New challenges
(2015-05)
Article
Open AccessAt present, pumped storage is the only system to store huge amounts of energy. The surplus of energy in the electrical grid is used for pumping water from a lower to a higher reservoir (pump operation). At peak hours or ... -
Control design and fault handling performance of MMC for MMC-based DC distribution system
(Institute of Electrical and Electronics Engineers (IEEE), 2022-11-24)
Article
Open AccessModular multilevel converters (MMCs) have emerged as a viable choice in future DC grid architectures due to their scalability to meet voltage level requirements. However, MMC-based DC distribution systems are at risk of ... -
Control Strategies for Improving Energy Efficiency and Reliability in Autonomous Microgrids with Communication Constraints
(2017-09-19)
Article
Open AccessMicrogrids are a feasible path to deploy smart grids, an intelligent and highly automated power system. Their operation demands a dedicated communication infrastructure to manage, control and monitor the intermittent sources ...
