Listar Artículos de revista - Aldizkari artikuluak por autor UPNA "Marroyo Palomo, Luis"
Mostrando ítems 1-20 de 33
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Adaptive voltage control of the DC/DC boost stage in PV converters with small input capacitor
In the case of photovoltaic (PV) systems, an adequate PV voltage regulation is fundamental in order to both maximize and limit the power. For this purpose, a large input capacitor has traditionally been used. However, when ... -
Analysis of polyamide and fluoropolymer backsheets: Degradation and insulation failure in field-aged photovoltaic modules
Durability of photovoltaic (PV) modules is of great concern not only from the point of view of cost-effectiveness but also from the point of view of safety and sustainability. The backsheet of a PV module is one of the ... -
Analytical design methodology for Litz-wired high-frequency power transformers
In the last quarter of a century, high-frequency (HF) transformer design has been one of the major concerns to power electronics designers in order to increase converter power densities and efficiencies. Conventional design ... -
Boost DC-AC inverter: a new control strategy
Boost dc–ac inverter naturally generates in a single stage an ac voltage whose peak value can be lower or greater than the dc input voltage. The main drawback of this structure deals with its control. Boost inverter ... -
Conductance-frequency droop control to ensure transient stability of inverter-based stand-alone microgrids
Currently, inverter-based stand-alone microgrids are gaining interest due to the advantages of obtaining energy from renewable sources. To manage the operation, these microgrids include storage systems connected in ... -
Control method to coordinate inverters and batteries for power ramp-rate control in large PV plants: minimizing energy losses and battery charging stress
This work presents a novel control method for multi-megawatt photovoltaic (PV) plants that is able to regulate each plant inverter and the battery system to mitigate PV power fluctuations. The proposed control method makes ... -
Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
Due to the nonlinear characteristics of a photovoltaic (PV) array, its regulation is highly dependent on the operating point. Focusing on a dc-dc boost converter, this paper first shows how the PV voltage and inductor ... -
Control strategies to smooth short-term power fluctuations in large photovoltaic plants using battery storage systems
The variations in irradiance produced by changes in cloud cover can cause rapid fluctuations in the power generated by large photovoltaic (PV) plants. As the PV power share in the grid increases, such fluctuations may ... -
Design methodology for the frequency shift method of islanding prevention and analysis of its detection capability
Islanding protection is one of the most important sources of discrepancy in gridconnected photovoltaic systems. Even when islanding is not very likely to happen, regulations demand the photovoltaic inverters to implement ... -
Dual voltage-current control to provide grid-forming inverters with current limiting capability
The rapid uptake of renewable energy sources is causing synchronous generators (SG) to be replaced by power electronic inverters meaning these inverters need to offer the characteristics traditionally associated with SG. ... -
Electronic controlled device for the analysis and design of photovoltaic systems
The characterization and design of photovoltaic systems is a difficult issue due to the variable operation atmospheric conditions. With this aim, simulators and measurement equipments have been proposed. However, most of ... -
Energy management for an electro-thermal renewable based residential microgrid with energy balance forecasting and demand side management
This paper proposes an energy management strategy for a residential microgrid comprising photovoltaic (PV) panels, a small wind turbine and solar thermal collectors. The microgrid can control the power exchanged with the ... -
Energy management strategy for a battery-diesel stand-alone system with distributed PV generation based on grid frequency modulation
A hybrid PV-Battery-Diesel configuration is very attractive for stand-alone systems in terms of cost and reliability. In many applications, the battery and the diesel generator are centralized and generate the AC grid while ... -
An energy management system design using fuzzy logic control: smoothing the grid power profile of a residential electro-thermal microgrid
This work deals with the design of a Fuzzy Logic Control (FLC) based Energy Management System (EMS) for smoothing the grid power prole of a grid-connected electro-thermal microgrid. The case study aims to design an Energy ... -
Enhancement of the voltage control response in three-phase photovoltaic inverters with small dc capacitors
In the case of photovoltaic (PV) inverters, an adequate dc voltage regulation is fundamental to maximize or limit the power injected into the grid. However, the traditional control requires a large dc capacitance to ensure ... -
Frequency-based energy management strategy for stand-alone systems with distributed battery storage
Distributed generation is an attractive solution for stand-alone AC supply systems. In such systems, the installation of two or more energy-storage units is recommended for system redundancy and may also be required when ... -
Fuzzy logic-based energy management system design for residential grid-connected microgrids
This paper presents the design of a low complexity fuzzy logic controller of only 25-rules to be embedded in an energy management system for a residential grid-connected microgrid including renewable energy sources and ... -
High frequency power transformers with foil windings: maximum interleaving and optimal design
Foil conductors and primary and secondary interleaving are normally used to minimize winding losses in high frequency transformers used for high-current power applications. However, winding interleaving complicates the ... -
Implementation and control of a residential electrothermal microgrid based on renewable energies, a hybrid storage system and demand side management
This paper proposes an energy management strategy for a residential electrothermal microgrid, based on renewable energy sources. While grid connected, it makes use of a hybrid electrothermal storage system, formed by a ... -
Influence of control in cycling degradation when batteries perform PV ramp-rate control
This work studies the importance of the correct selection of control parameters in order to avoid unnecessary cycling in batteries when they perform PV smoothing. The classic ramp-rate control method (CRRC) is studied ...