Listar por tema "Voltage control"
Mostrando ítems 1-11 de 11
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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 ... -
Análisis y montaje de un inversor fotovoltaico de 200 W con filtro LC y transformador para conexión a red
Este proyecto se ha dirigido a diseñar y validar mediante simulaciones los diferentes controles que se realizan a la hora de inyectar energía a la red eléctrica mediante un inversor fotovoltaico de 200 W. Así pues, el ... -
Comparison of linear and and small-signal models for inverter-based microgrids
Frequency and voltage regulation in droop-based microgrids is generally modeled using small-signal analysis. In order to ensure accuracy, existing models do not decouple real and reactive power responses. However, the ... -
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 of a single-switch two-input buck converter for MPPT of two PV strings
In this paper, the Two-Input Buck (TIBuck) converter is proposed as the DC/DC stage for photovoltaic (PV) cascaded converters. This converter is attractive for this application because it is cost-effective and reliable and ... -
DC capacitance reduction in photovoltaic inverters based on PV voltage feed-forward compensation
In the case of photovoltaic (PV) inverters, an adequate input voltage regulation is fundamental to maximize or limit the power. When employing the traditional control, the input capacitance requires to be oversized in order ... -
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. ... -
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 ... -
Parameter-independent battery control based on series and parallel impedance emulation
Appropriate voltage control is essential in order to extend the useful life of a battery. However, when universal chargers are used, the design of this control becomes more complicated, given the fact that the battery ... -
Parameter-independent control for battery chargers based on virtual impedance emulation
An effective battery voltage regulation is fundamental to extend battery lifetime and to avoid overvoltage. However, the design of this regulation is complicated due to the wide battery impedance range, which, when dealing ... -
Power angle-frequency droop control to enhance transient stability of grid-forming inverters under voltage dips
Due to the replacement of synchronous generators, grid operators are currently demanding to control grid-connected inverters in grid–forming mode to make them participate in the maintenance of the grid. To carry this ...