Journal ArticleDOI
Enhanced power quality control strategy for single-phase inverters in distributed generation systems
Radu Bojoi,Leonardo Rodrigues Limongi,D. Roiu,Alberto Tenconi +3 more
- Vol. 26, Iss: 3, pp 798-806
TLDR
In this article, a single-phase inverter for distributed generation systems requiring power quality features, such as harmonic and reactive power compensation for grid-connected operation, is proposed, where the inverter controls the active power flow from the renewable energy source to the grid and also performs the nonlinear load current harmonic compensation keeping the grid current almost sinusoidal.Abstract:
Power electronic converters are commonly used for interfacing distributed generation systems to the electrical power network. This paper deals with a single-phase inverter for distributed generation systems requiring power quality features, such as harmonic and reactive power compensation for grid-connected operation. The idea is to integrate the DG unit functions with shunt active power filter capabilities. With the proposed approach, the inverter controls the active power flow from the renewable energy source to the grid and also performs the non-linear load current harmonic compensation keeping the grid current almost sinusoidal. The control scheme employs a current reference generator based on Sinusoidal Signal Integrator (SSI) and Instantaneous Reactive Power (IRP) theory together with a repetitive current controller. Experimental results obtained on a 4 kVA inverter prototype demonstrate the feasibility of the proposed solution.read more
Citations
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Journal ArticleDOI
Battery energy storage system for frequency support in microgrids and with enhanced control features for uninterruptible supply of local loads
Ioan Serban,Corneliu Marinescu +1 more
TL;DR: In this article, a battery energy storage system (BESS) is proposed to support the frequency control process within microgrids (MG) with high penetration of renewable energy sources (RES).
Journal ArticleDOI
Universal Integrated Synchronization and Control for Single-Phase DC/AC Converters
TL;DR: In this paper, a universal integrated synchronization and control (UISC) is proposed to operate a single-phase dc/ac converter in both grid-connected (GC) and stand-alone (SA) modes and offer seamless transition between these modes without any reconfiguration of control structure.
Journal ArticleDOI
Efficient Single Phase Transformerless Inverter for Grid-Tied PVG System With Reactive Power Control
TL;DR: In this paper, a new high efficiency transformerless topology is proposed for grid-tied PV system with reactive power control, which can inject reactive power into the utility grid without any additional current distortion and leakage current.
Journal ArticleDOI
Predictive Direct Virtual Torque and Power Control of Doubly Fed Induction Generators for Fast and Smooth Grid Synchronization and Flexible Power Regulation
TL;DR: In this article, a predictive direct virtual torque and power control strategy for a doubly fed induction generator, which allows fast and smooth grid synchronization, and flexible active and reactive power regulation, is presented.
Journal ArticleDOI
Review and Classification of Control Systems in Grid-tied Inverters
TL;DR: A review of solutions for the control of grid-tied inverters is carried out in this paper, where the major advantages and disadvantages of these control systems are highlighted and compared, and the most important characteristics of these parameters have been presented in a table to show which parameters can be used in various control systems for grid-tie inverters.
References
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Journal ArticleDOI
Overview of Control and Grid Synchronization for Distributed Power Generation Systems
TL;DR: An overview of the structures for the DPGS based on fuel cell, photovoltaic, and wind turbines is given and the possibility of compensation for low-order harmonics is discussed.
Journal ArticleDOI
Comprehensive Approach to Modeling and Simulation of Photovoltaic Arrays
TL;DR: In this article, the authors proposed a method of modeling and simulation of photovoltaic arrays by adjusting the curve at three points: open circuit, maximum power, and short circuit.
Journal ArticleDOI
Power electronics as efficient interface in dispersed power generation systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal Article
Power Electronics as Efficient Interface in Dispersed Power Generation Systems
TL;DR: In this article, power electronics, the technology of efficiently processing electric power, play an essential part in the integration of the dispersed generation units for good efficiency and high performance of the power systems.
Journal ArticleDOI
A Review of the State of the Art of Power Electronics for Wind Turbines
TL;DR: The possible methods of using the power electronic technology for improving wind turbine performance in power systems to meet the main grid connection requirements are discussed.