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Single stage converters for low power stand-alone and grid-connected PV systems
(2011-09-21)
This work presents the evaluation of different power electronic integrated converters suitable for photovoltaic applications, in order to reduce complexity and improve reliability. The rated voltages available in Photovoltaic ...
Voltage-source active power filter based on multilevel converter and ultracapacitor DC link
(2006)
A new topology for active power filters (APF) using an 81-level converter is analyzed. Each phase of the converter is composed of four three-state converters, all of them connected to the same capacitor dc link voltage and ...
Design of model-based controllers applied to a solid-state low voltage dc breaker
(INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS INC., 2015-10-05)
This paper presents the methodology of design of model-based sliding mode control (SMC) algorithms applied to power electronic dc-dc converters, which are part of the components of a solid-state low voltage dc breaker ...
Power control strategies for grid-connected converters during low voltage ride through operation
(Universidade Federal de Minas GeraisUFMG, 2019-02-22)
Momentary voltage sags are very common phenomena in electrical power systems. Thus, the transmission system operators require that the generation units remain connected to the transmission mains while the voltage is within ...
Voltage source active power filter, based on multi-stage converter and ultracapacitor dc-link
(IEEE, 2003)
A multi-stage inverter using three-state converters is being analyzed for active filter and static var compensator applications. Each phase of the converter is composed of four three-state converters, all of them connected ...
Impact of nonlinear lighting loads on the neutral conductor current of low voltage residential grids
(MDPI AG, 2020-09)
In the last decade, mainly due to political incentives towards energy efficiency, the share of lamps with power electronic interfaces, like Compact Fluorescent Lamps (CFL) and Light Emitting Diode (LED) lamps, has significantly ...
Design of model-based controllers applied to a solid-state low voltage dc breaker
(INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS INC., 2018)
Observer-Based Grid-Voltage Sensorless Synchronization and Control of a VSI-LCL Tied to an Unbalanced Grid
(Institute of Electrical and Electronics Engineers, 2019-07)
This paper proposes an observer-based grid-voltage sensorless strategy that allows to implement the synchronization and control of an LCL grid-tied voltage source inverter. By using exclusively the measurement of the current ...
Evaluation of Quadrature Signal Generation Methods with Reduced Computational Resources for Grid Synchronization of Single-Phase Power Converters through Phase-Locked Loops
Low-cost single-phase grid connected converters require synchronization with the grid voltage to obtain a better response and protection under diverse conditions, such as frequency perturbations and distortion. Phase-locked ...