Browsing by Author "Miret Tomàs, Jaume"
Now showing items 1-20 of 131
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A flexible experimental laboratory for distributed generation networks based on power inverters
(2017-10-13)
Article
Open AccessIn the recently deregulated electricity market, distributed generation based on renewable sources is becoming more and more relevant. In this area, two main distributed scenarios are focusing the attention of recent research: ... -
Active and reactive power strategies with peak current limitation for distributed generation inverters during unbalanced grid faults
(Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
Article
Open AccessDistributed generation inverters have become a key element to improve grid efficiency and reliability, particularly during grid faults. Under these severe perturbations, inverter-based power sources should accomplish ... -
Active damping based on Ackermann's formula for a three-phase voltage source inverter with LCL filter
(2015)
Conference report
Restricted access - publisher's policyThis paper presents an active damping method in natural frame for a three-phase voltage source inverter with LCL filter. The proposed method is based on the pole placement technique via Ackermann's formula. This approach ... -
Active damping control for a three phase grid-connected inverter using sliding mode control
(2013)
Conference report
Restricted access - publisher's policyThis paper proposes a ne w active damping method based on virtual resistors for three-phase grid connected voltage source inverters (VSI) with LCL filter. The use of this filters is a standard solution to provide the ... -
Active power sharing and frequency regulation in droop-free control for islanded microgrids under electrical and communication failures
(Institute of Electrical and Electronics Engineers (IEEE), 2020-08-01)
Article
Open AccessThe droop-free control for ac microgrids achieves active power sharing and frequency regulation by replacing the centralized secondary control and the primary-level droop mechanism by a cooperative distributed control ... -
Active-power voltage-support for a microgrid under short-circuits, modelled in complex valued domain
(2023)
Conference report
Restricted access - publisher's policyThe growing number of electric vehicles (EVs) connected to the grid are a promising potential to support the overall system stability, known as vehicle to grid concept. During grid faults these vehicles can be seen as ... -
Adaptive slope voltage control for distributed generation inverters with improved transient performance
(2019-04-09)
Article
Open AccessReactive 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 ... -
An adaptive prefiltering method to improve the speed/accuracy tradeoff of voltage sequence detection methods under adverse grid conditions
(Institute of Electrical and Electronics Engineers (IEEE), 2013-07-23)
Article
Restricted access - publisher's policyThis paper deals with the improvement of the transient response and harmonic, subharmonic, and dc-offset voltage rejection capability of a grid voltage sequence detection scheme based on a second-order generalized integrator ... -
An experimental approach for secondary consensus control tuning for inverter-based islanded microgrids
(2023-01-03)
Article
Open AccessA microgrid is a group of interconnected loads and distributed energy resources that can fill the gap between the dependence on a bulk power grid and the transition to renewable energies. The islanded mode presents itself ... -
Analysis of consensus-based islanded microgrids subject to unexpected electrical and communication partitions
(Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
Article
Open AccessMicrogrids are power systems consisting of an electrical network composed by distributed loads and generation units that may include a communication network for improved operation. The considered microgrid in islanded mode ... -
Analysis of the effect of clock drifts on frequency regulation and power sharing in inverter-based islanded microgrids
(2018-02-12)
Article
Open AccessLocal hardware clocks in physically distributed computation devices hardly ever agree because clocks drift apart and the drift can be different for each device. This paper analyses the effect that local clock drifts have ... -
Analysis, design and implementation of a DC/DC boost resonant-inductor converter with sliding-mode control
(2018-03-20)
Article
Open AccessModern DC-DC resonant converters are normally build around a voltage-source series-resonant converter. This study aims to facilitate the practical use of current-source parallel-resonant converters due to their outstanding ... -
Analysis, design and implementation of a residential inductive contactless energy transfer system with multiple mobile clamps
(2017-06-30)
Article
Open AccessThis study presents the analysis, design and implementation of a simple and cost-effective residential inductive contactless energy transfer system with multiple mobile clamps. The topology is based on the cascaded connection ... -
Aplicació de tècniques de control no lineal per a convertidors electrònics de potència amb consignes variables en el temps
(Universitat Politècnica de Catalunya, 2005-02-04)
Doctoral thesis
Open AccessEl principal objetivo de esta Tesis ha sido establecer nuevas estrategias de control para convertidores de potencia simples y paralelizados, que siguen consignes variables en el tiempo.<br/>En la Tesis Doctoral se propone ... -
Avoiding overvoltage problems in three-phase distributed-generation systems during unbalanced voltage sags
(2020-02-01)
Article
Open AccessDuring voltage sags, distributed generation systems must fulfil specific grid-code requirements for reactive current injection. This ancillary service can produce overvoltage problems in networks operating in unbalanced ... -
Charging demand of Plug-in Electric Vehicles: Forecasting travel behavior based on a novel Rough Artificial Neural Network approach
(2019-08-20)
Article
Open AccessThe market penetration of Plug-in Electric Vehicles (PEVs) is escalating due to their energy saving and environmental benefits. In order to address PEVs impact on the electric networks, the aggregators need to accurately ... -
Collaborative voltage unbalance compensation in islanded AC microgrids with grid-forming inverters
(Institute of Electrical and Electronics Engineers (IEEE), 2022-04-25)
Article
Open AccessThe presence of unbalanced loads in power systems creates voltage imbalances that perturb the operation of sensitive loads like induction motors, power electronics converters and adjustable speed drives. This paper presents ... -
Collaborative voltage unbalance elimination in grid-connected AC microgrids with grid-feeding inverters
(Institute of Electrical and Electronics Engineers (IEEE), 2021-06-01)
Article
Open AccessThe control flexibility of the power inverters that interface distributed generation can be exploited to incorporate power quality enhancement features in addition to the usual power management control. This article presents ... -
Communication-aware consensus for frequency restoration in islanded microgrids
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyMicroGrids (MGs) include spatially distributed generation (DG) systems and loads that may require operating autonomously in islanded mode. The operation of islanded MGs can benefit from consensus theory and practice, ... -
Comparative study of reactive power control methods for photovoltaic inverters in low-voltage grids
(2016-03-01)
Article
Open AccessThe increasing installation of photovoltaic panels in low-voltage grids causes an over voltage problem, especially during high production and low consumption periods. Generally the over voltage problem is overcome by ...
