Now showing items 1-20 of 163

    • A behavioural dynamic model for constant power loads in single-phase AC systems 

      Griñó Cubero, Robert; Ortega, Romeo; Fridman, Emilia; Zhang, Jin; Mazenc, Frédéric (2021-09-01)
      Article
      Restricted access - publisher's policy
      Constant power loads (CPLs) in power systems have a destabilizing effect that gives rise to significant oscillations or to network collapse, motivating the development of new methods to analyse their effect in AC and DC ...
    • A communication: assisted protection for MVDC distribution systems with distributed generation 

      Monadi, Mehdi; Gavriluta, Catalin; Candela García, José Ignacio; Rodríguez Cortés, Pedro (2015)
      Conference report
      Open Access
      In 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 data acquisition pipeline for home energy management systems 

      Munné Collado, Íngrid; Montesinos Miracle, Daniel; Villafafila Robles, Roberto; Bové Salat, Adrià (2020)
      Conference lecture
      Restricted access - publisher's policy
      This paper presents a modular data acquisition pipeline to integrate exible assets and distributed and renewable energy sources in households. This modular and general system's main aim is to enhance the data acquisition, ...
    • A distributed power sharing framework among households in microgrids: a repeated game approach 

      Alskaif, Tarek; Guerrero Zapata, Manel; Bellalta Jiménez, Boris; Nilsson, Anders (2017-01-01)
      Article
      Open Access
      In microgrids, the integration of distributed energy resources (DERs) in the residential sector can improve power reliability, and potentially reduce power demands and carbon emissions. Improving the utilization of renewable ...
    • A generalized voltage droop strategy for control of multiterminal DC grids 

      Rouzbehi, Kumars; Miranian, Arash; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2015-02)
      Article
      Open Access
      This 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 mathematical model for the scheduling of virtual microgrids topology into an active sistribution network 

      García Muñoz, Fernando Esteban; Díaz González, Francisco; Corchero García, Cristina (Multidisciplinary Digital Publishing Institute, 2020-10-15)
      Article
      Open Access
      This 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 Monte Carlo approach for distribution reliability assessment considering time varying load and system reconfiguration 

      Martínez Magaña, Juan; Guerra Sánchez, Luis Gerardo (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents the basic features of a sequential analytical Monte Carlo approach for reliability evaluation of distribution systems. The document includes a description of the procedure, implemented in an open ...
    • A novel algorithm based on the combination of AC-OPF and GA for the optimal sizing and location of DERs into distribution networks 

      García Muñoz, Fernando Esteban; Díaz González, Francisco; Corchero García, Cristina (Elsevier, 2021-09)
      Article
      Restricted access - publisher's policy
      This article proposes an algorithm to obtain an optimal local solution for the network planning process related to the optimal integration of different renewable energy sources (RES) and different BatteryEnergy Storage ...
    • A novel hybrid home energy management system considering electricity cost and greenhouse gas emissions minimization 

      Barja Martínez, Sara; Rücker, Fabian; Aragüés Peñalba, Mònica; Villafafila Robles, Roberto; Munné Collado, Íngrid; Lloret Gallego, Pau (2021-06-28)
      Article
      Open Access
      This paper proposes a multi-objective hybrid energy management system that minimizes both the electricity expenses and the household greenhouse gas emissions released due to consumption, considering the entire life cycle ...
    • A proportional resonant controller tuning method for grid connected power converters with LCL+trap filter 

      Zhang, Weiyi; Mir Cantarellas, Antonio; Remón, D.; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2014)
      Conference report
      Restricted access - publisher's policy
      Three-phase power converters are largely employed in power generation facilities based on renewable energy sources, and these converters commonly working in grid connection mode are frequently connected to the grid through ...
    • A stationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions 

      Rodríguez Cortés, Pedro; Luna Alloza, Álvaro; Muñoz Aguilar, Raúl Santiago; Etxebarría, Ion; Teodorescu, Remus; Blaabjerg, Frede (2012-01)
      Article
      Restricted access - publisher's policy
      Grid 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 ...
    • A unified power flow controller using a power electronics integrated transformer 

      Atef Elsaharty, Mohammed; Luna Alloza, Álvaro; Candela García, José Ignacio; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2019-02-05)
      Article
      Open Access
      This paper presents a Unified Power Flow Controller (UPFC) application of the Custom Power Active Transformer (CPAT); a power electronics integrated transformer which provides services to the grid through ...
    • Adaptació a la xarxa intel·ligent d'una empresa de distribució elèctrica 

      Jutglar Rovira, Guillem (Universitat Politècnica de Catalunya, 2016-03)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El sistema elèctric, un sector que destaca pels pocs canvis soferts des dels seus inicis, està en l’actualitat vivint una autèntica revolució tecnològica però també ideològica amb la transformació de les xarxes elèctriques ...
    • Advanced control of a high power converter connected to a weak grid 

      Shahparasti, Mahdi; Catalán, Pedro; Candela García, José Ignacio; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (2016)
      Conference report
      Open Access
      This paper addresses the stability problems of a high power converter connected to a weak grid. The wide range values that grid impedance can take, challenges the stability and the performance of the controllers, which are ...
    • Aggregated economic analysis of the brazilian electricity distribution companies using a regulated market economic model 

      Cortez, Carolina; Bonatto, Benedito Donizeti; Arango, Héctor; Castilla Fernández, Miguel (Springer, 2020-03-29)
      Article
      Open Access
      While most of the research work in the field of electrical engineering was aroused by the scientific challenges to be overcome, it is fair to recognize that the practical importance of engineering hinges on its economic ...
    • Aggregating energy flexibilities under constraints 

      Valsomatzis, Emmanouil; Bach Pedersen, Torben; Abelló Gamazo, Alberto; Hose, Katja (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      The flexibility of individual energy prosumers (producers and/or consumers) has drawn a lot of attention in recent years. Aggregation of such flexibilities provides prosumers with the opportunity to directly participate ...
    • Ampliación de un laboratorio de protecciones eléctricas en líneas de distribución 

      Álvarez Muñoz, Rubén Daniel (Universitat Politècnica de Catalunya, 2014-06-11)
      Bachelor thesis
      Open Access
      Aquest document descriu el procés d'ampliació per a un laboratori de proteccions elèctriques per a línies elèctriques de distribució situat a l'Aula Schneider (Planta 1 EUETIB) . Aquest sistema permet familiaritzar-se ...
    • An improved harmonic load flow formulation 

      Rashid, Asim; Mesas García, Juan José; Sainz Sapera, Luis (Taylor & Francis, 2019-10-21)
      Article
      Open Access
      The paper contributes an improved harmonic load flow formulation with fewer convergence problems but the same accurate results as traditional formulations. The proposed formulation approaches the harmonic load flow problem ...
    • Analysis and design of virtual synchronous machine based STATCOM controller 

      Chi, Li; Burgos, R.; Cvetkovic, I.; Boroyevich, D.; Mili, L.; Rodríguez Cortés, Pedro (2014)
      Conference report
      Restricted access - publisher's policy
      this paper extends the virtual synchronous machine (VSM) concept, recently proposed as alternative means to synchronize grid-connected inverters, by developing a VSM-based STATCOM controller operating as synchronous ...
    • Analysis of derivative control based virtual inertia in multi-area HVDC interconnected AGC power systems 

      Rakhshani, Elyas; Remón, D.; Mir Cantarellas, Antonio; Rodríguez Cortés, Pedro (2016-02-04)
      Article
      Open Access
      Due to increasing level of power converter based component in the grid and consequently the lack of inertia, AGC in multi area interconnected power systems are experiencing different challenges. To cope with this challenging ...