Open AccessJournal Article
Design and Development of Digital Control Strategy for Solar Photovoltaic Inverter to Improve Power Quality
TLDR
In this paper, the design and development of control circuit for a solar fed cascaded multilevel inverter is postulated in order to achieve the maximum output voltage levels without the requirement of detailed look up table, boost converters and output transformers.Abstract:
The design and development of control circuit for a solar fed cascaded multilevel inverter is postulated in this paper. The control circuit based on logic operations reduces the semiconductor switches required for the multilevel inverter. In addition to the reduction of switches, it also improves the quality of the output power by minimizing the Total Harmonic Distortion (THD). The proposed design achieves the maximum output voltage levels without the requirement of detailed look up table, boost converters and output transformers. The implementation of multilevel inverter is carriedout with asymmetrical DC sources from solar photovoltaics to achieve 2 ns+1 -1 and 3 ns levels, where ns is the number of individual inverter stages. Based on the proposed design 12 switches are required to achieve 15 and 27 levels respectively, whereas the conventional inverter can able to produce only 7 levels. MATLAB/Simulink is used for the simulation of the system. The modelling of solar panel which adheres to the experimental setup is developed. A 3kWp solar plant is taken into consideration for the implementation of the proposed control design and the performance parameters are measured using power quality analyser. The results are compared with the conventional inverter which shows that the proposed inverter is much suitable for both standalone and grid connected systems.read more
Citations
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Hybrid cascade converter topology with series connected symmetrical and asymmetrical diode-clamped H-Bridge cells
TL;DR: In this article, a novel H-bridge multilevel PWM converter topology based on a series connection of a high voltage (HV) diode-clamped inverter and a low voltage (LV) conventional inverter is proposed.
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A Research Survey on Microgrid Faults and Protection Approaches
TL;DR: Effort is carried out to re-examine the fundamental conceptions also importance, problems experienced by microgrid as theme of diverse protection approaches, which creates available protecting approach is fall in the microgrid.
Journal ArticleDOI
Design of Intelligent Controller for Hybrid PV/Wind Energy Based Smart Grid for Energy Management Applications
TL;DR: New method of digital grid for hybrid photovoltaic/Wind based smart grid system were developed and it consists of solar PV array systems, wind power systems, asynchronous generator, converters, MPPT systems, fuzzy logic controllers (FLC).
Journal ArticleDOI
Lyapunov-Global-Lanczos Algorithm for Model Order Reduction & Adaptive PI Controller of Large Scale Electrical Systems
TL;DR: A reduction method based on the Krylov subspace and Lyapunov techniques that provides a better reduced system of order 1, with closer behaviour to the original system, and an adaptive digital PI controller in a microcontroller is implemented.
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A scheme for reduction in harmonics and establish the stability of hybrid system connected in grid
Manisha Malik,P R Sharma +1 more
TL;DR: To enhance the quality of power and stability of the overall PV system integrated with the grid, a transient current limiter for limiting the transient has been incorporated in the system.
References
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Journal ArticleDOI
Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey
Juan Manuel Campos Carrasco,Leopoldo G. Franquelo,Jan T. Bialasiewicz,Eduardo de Teresa Galván,R.C.P. Guisado,Ma.A.M. Prats,Jose I. Leon,Narciso Moreno-Alfonso +7 more
TL;DR: New trends in power electronics for the integration of wind and photovoltaic (PV) power generators are presented and a review of the appropriate storage-system technology used for the Integration of intermittent renewable energy sources is introduced.
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A review of single-phase grid-connected inverters for photovoltaic modules
TL;DR: In this article, the authors focus on inverter technologies for connecting photovoltaic (PV) modules to a single-phase grid and categorize the inverters into four classifications: 1) the number of power processing stages in cascade; 2) the type of power decoupling between the PV module(s) and the single phase grid; 3) whether they utilizes a transformer (either line or high frequency) or not; and 4) the kind of grid-connected power stage.
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Recent Advances and Industrial Applications of Multilevel Converters
Samir Kouro,Mariusz Malinowski,K. Gopakumar,Josep Pou,Leopoldo G. Franquelo,Bin Wu,Jose Rodriguez,Marcelo A. Perez,Jose I. Leon +8 more
TL;DR: This paper first presents a brief overview of well-established multilevel converters strongly oriented to their current state in industrial applications to then center the discussion on the new converters that have made their way into the industry.
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VSC-Based HVDC Power Transmission Systems: An Overview
TL;DR: An overview of the recent advances in the area of voltage-source converter (VSC) HVdc technology is provided in this paper, where a list of VSC-based HVDC installations worldwide is included.
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Control of a Single-Phase Cascaded H-Bridge Multilevel Inverter for Grid-Connected Photovoltaic Systems
TL;DR: This paper presents a single-phase cascaded H-bridge converter for a grid-connected photovoltaic (PV) application that offers other advantages such as the operation at lower switching frequency or lower current ripple compared to standard two-level topologies.