Buscar
Mostrando ítems 1-10 de 622
Energy Balancing Improvement of Modular Multilevel Converters under Unbalanced Grid Conditions
(Institute of Electrical and Electronics Engineers, 2017-08)
This paper presents a feedback/feed-forward control strategy to improve the voltage balancing of modular multilevel converters (MMCs) under unbalanced grid conditions. The inclusion of a feed-forward compensation improves ...
Analysis of Dynamic Voltage Support Schemes for PV Generators Implemented in Latin America
(Institute of Electrical and Electronics Engineers, 2020-04)
The levels of renewable power, particularly PV, injected into different electrical systems in Latin America, bring with them a series of fundamental technical changes that need to be addressed. Among them, power quality ...
Active Current Mirrors for Low-Voltage Analog Circuit Design
(Birkhauser Boston Inc, 2017-12)
In this work, active current mirrors using sensing resistors and a pass transistor in a feedback loop will be examined in detail. First, several non-idealities in this family of circuits, such as offset, noise, output ...
Current density-voltage characteristics in thin film Cu/CuO/Cu sandwich structure
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Adaptive Control Strategy for VSC-Based Systems under Unbalanced Network Conditions
(Institute of Electrical and Electronics Engineers, 2010-12)
A new adaptive control strategy, intended to improve the ride-through capability of HVDC systems under unbalanced network conditions and parameter uncertainties, is introduced. The proposed strategy resorts to a model ...
Current-voltage curves of eutectic In-Sb-Te thin films for phase change memory devices
(Emerald, 2019-10)
Purpose: The purpose of this paper is to investigate electrical properties of eutectic In8Sb8Te84 and In10Sb51Te39 as made thin films to evaluate their potential for non-volatile phase-change memories, once the thermal ...
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 ...
Low Computational Burden Grid Voltage Sensorless Current Controller
(IET, 2013-09)
This study proposes a grid voltage sensorless reduced order generalised integrator-based current controller. The proposal takes advantage of the controller structure to avoid the grid voltage measurement, avoiding the need ...