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
High Frequency Transformer’s Parasitic Capacitance Minimization for Photovoltaic (PV) High-Frequency Link-Based Medium Voltage (MV) Inverter
Himanshu,Harsimran Singh,Pandiyan Sathish Kumar,Muhammad Umair Ali,Ho Yeong Lee,Muhammad Khan,Gwan Soo Park,Hee-Je Kim +7 more
TL;DR: In this paper, a comparative study between conventional and modified toroid transformer designs for isolated power supply is presented, where the modified design of a toroid ferrite core transformer offers more resistance to temperature increase without the use of any cooling agent or external circuitry.
Proceedings ArticleDOI
Model predictive control of grid-tied photovoltaic systems: Maximum power point tracking and decoupled power control
TL;DR: In this paper, the maximum power point tracking (MPPT) and decoupled power control for single phase grid-tied photovoltaic (PV) systems are presented.
Proceedings ArticleDOI
Model predictive decoupled power control for single-phase grid-tied inverter
TL;DR: In this article, a decoupled real and reactive power control technique for a single phase grid-tied inverter using Model Predictive Control (MPC) is presented, which does not use a PLL, PWM nor a synchronization transform, making the control algorithm well suited for an all-digital implementation.
Proceedings ArticleDOI
A new high efficient transformerless inverter for single phase grid-tied photovoltaic system with reactive power control
Monirul Islam,Saad Mekhilef +1 more
TL;DR: In this article, a new high efficient transformerless topology is proposed for grid-tied PV system, which can inject reactive power into utility grid without any additional current distortion and leakage current.
Journal ArticleDOI
Supply Voltage and Grid Current Harmonics Compensation Using Multi-Port Interfacing Converter Integrated Into Two-AC-Bus Grid
TL;DR: It has been examined that the proposed power quality control method works well in various conditions including that with large grid impedance and dc rail voltage variations.
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.