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
Multifunctional inverter based on virtual synchronous machine implemented in synchronous reference frame
Rongcai Pan,Peide Sun +1 more
TL;DR: A new multifunctional inverter control structure is proposed in this paper by embedding the harmonic and unbalance regulators into the virtual synchronous machine (VSM), and the simplified control structure with more operation modes is available without phase-locked loop.
Journal ArticleDOI
Multibandwidth Repetitive Control Resisting Frequency Variation in Grid-Tied Inverters
TL;DR: In this article , a multibandwidth repetitive control (RC) is developed and applied to a grid-tied inverter to resist grid frequency variation, where each of the resonant bandwidth is set individually by the gain of the internal model filter.
Journal ArticleDOI
Control of Grid Connected Photovoltaic System Using Three-Level T-Type Inverter
TL;DR: In this article, a photovoltaic distributed generation system based on dual-stage topology of DC-DC boost converter and 3-level T-Type inverter is introduced.
Proceedings ArticleDOI
Research on fast transient and 6n±1 harmonics compensating repetitive control scheme for three-phase systems
TL;DR: In this paper, the proportional-integral (PI) regulator and the plug-in repetitive control are combined in the control loop, to improve the even harmonics compensation under the unbalanced system.
Journal ArticleDOI
Interval Type-2 Fuzzy Based Photovoltaic Distributed Generation System with Enhanced Power Quality Feature
TL;DR: An interval type-2 fuzzy logic controlled single-phase enhanced power quality-based photovoltaic distributed generation (PVDG) system and its applications are presented.
References
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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.