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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Proceedings ArticleDOI
Integration strategy for bidirectional and unidirectional converters aiming for zero power pollution in residential applications
TL;DR: In this paper, the reactive power compensation performance of aggregated unidirectional power factor correction converters commonly found in household appliances is evaluated, and it is demonstrated that such converters are able to support their load demand while simultaneously compensating reactive power demand elsewhere in the grid.
A New Control Method for Single-Phase Grid-Connected Inverter Using Instantaneous Power Theory
TL;DR: A new simple current control is proposed for a single-phase grid-connected voltage source inverter using the PQ theory and modelling an unbalanced three-phase system for reference current generation.
Dissertation
Advanced control in smart microgrids
TL;DR: In this paper, a model predictive direct control strategy of a doubly fed induction generator is proposed to achieve fast and smooth grid synchronization, and after grid connection, the active and reactive power can be regulated flexibly, which enables the wind power systems contributing to the grid voltage support and power quality improvement.
Proceedings ArticleDOI
DQ Transformation Based Control of Single-Phase Grid-Tied Inverter
Muhammad Waqas,Toqeer Ahmed,Rajvikram Madurai Elavarasan,Asad Waqar,Kenneth Leong,Rishi Pugazhendhi,Narottam Das,Muhammad Waqas Jeelani +7 more
TL;DR: In this article, a direct quadrature (DQ) reference frame is used to control active and reactive power by employing proportional integral (PI) control in a single-phase grid-tied inverter.
Journal ArticleDOI
Grid Interconnection of Renewable Energy Sources Using Unified Power Quality Conditioner: A Fuzzy Logic-Based Approach
T. Vigneysh,Narayanan Kumarappan +1 more
TL;DR: This paper proposes distributed generation-integrated unified power quality conditioner (UPQC-DG) with adaptive fuzzy proportional–integral (AFPI) controller to improve the power quality of a distributed generation system.
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.