Proceedings ArticleDOI
Power quality analysis of a PV fed seven level cascaded H-bridge multilevel inverter
Raj Kiran B,Meenakshi Jayaraman,V.T. Sreedevi +2 more
- pp 281-285
TLDR
The study attempts to show that with an LC filter at the output stage of the multileVEL inverter, the total harmonic reduction is significantly reduced and the power quality of the PV fed multilevel inverter system is highly improved.Abstract:
Efficient DC to DC and DC to AC converters play a vital role in the reliable performance of standalone and grid connected photovoltaic systems. This paper deals with DC to AC conversion by a seven level cascaded H-bridge multilevel inverter for a standalone photovoltaic system. The PV fed seven level cascaded H-bridge multilevel inverter is analyzed in two ways: 1) with equal voltage sources as input to the H-bridges and 2) with unequal voltage sources as input. A comparative study of the total harmonic distortion reduction in the PV fed multilevel inverter system with and without equal voltage sources as input is carried out. It is observed that with unequal voltage sources, the total harmonic distortion is increased than that with equal voltage sources as input to the PV fed seven level cascaded H-bridge multilevel inverter. Further, the study attempts to show that with an LC filter at the output stage of the multilevel inverter, the total harmonic reduction is significantly reduced and the power quality of the PV fed multilevel inverter system is highly improved. Results are verified using simulations done in MATLAB/Simulink environment.read more
Citations
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Journal ArticleDOI
Model-Based Voltage Quality Analysis and Optimization in Post-Fault Reconfigured N-Level NPC Inverter
Weiqiang Chen,Ali M. Bazzi +1 more
TL;DR: A model-based voltage quality analysis and optimization method is proposed to alleviate the voltage quality degradation of post-fault reconfigured N-level NPC inverter and results validate the effectiveness of the proposed optimization method.
Proceedings ArticleDOI
Capacitor Voltage Balancing Control Strategy For Single-phase Five-Level ANPC Photovoltaic Inverter
TL;DR: By injecting the compensation voltage to modulation wave and adjusting the operation time of redundant switching states in each switching period, both the voltages of dc-link capacitors and flying capacitors can be directly controlled and decoupling control is realized naturally.
Proceedings ArticleDOI
Harmonics elimination based on curve fitting method for modular multilevel converters
Majdee Tohtayong,Sheroz Khan,Mashkuri Yaacob,Siti Hajar Yusoff,Musse Mohamud Ahmed,Kushsairy Kadir,Jawad Ali Shah,Khairil Azhar Aznan,Ezzidin Hassan Elmabrouk Aboadla +8 more
TL;DR: The Curve Fitting method is selected to assist the Newton-Raphson method and the idea of this combination method is presented in this paper and the calculation result is compared and implemented in the 3-phase 7-level MMCs simulation to validate the calculation results.
Proceedings ArticleDOI
Study and Implementation of a Novel Self-Balancing Nine-Level Inverter with Coupled
TL;DR: Compared with the same level conventional topologies, this topology uses less components and makes voltage balance without using additional voltage-balancing circuit or complex control method, so its benefits are smaller size circuit, higher power density and lower cost.
Proceedings ArticleDOI
Single phase Cascaded H-Bridge Multilevel Inverter Topology
TL;DR: In this article , the Cascaded H-bridge (CHB) multilevel inverter with equal as well as unequal DC sources is investigated and the comparative analysis is done for the same.
References
More filters
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
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.
Journal ArticleDOI
Energy-Balance Control of PV Cascaded Multilevel Grid-Connected Inverters Under Level-Shifted and Phase-Shifted PWMs
TL;DR: An energy-balance control strategy for a cascaded single-phase grid-connected H-bridge multilevel inverter linking n independent photovoltaic arrays to the grid, ensuring the stability of the system for the whole range of PV array operating conditions.
Journal ArticleDOI
Development of a MATLAB/Simulink Model of a Single-Phase Grid-Connected Photovoltaic System
Michael Ropp,Sigifredo Gonzalez +1 more
TL;DR: In this paper, a Matlab/Simulink model of a single-phase grid-connected PV inverter has been developed and experimentally tested to predict the dynamics of the maximum power point trackers (MPPTs) and anti-islanding algorithms.
Matlab / simulink based study of photovoltaic cells / modules / array and their experimental verification
TL;DR: In this article, a Matlab-simulink based simulation study of PV cell/PV module/pV array is carried out and presented in a simulation model makes use of basic circuit equations of PV solar cell based on its behaviour as diode and comprehensive behavioural study is performed under varying conditions of solar insolation, temperature, varying diode model parameters, series and shunt resistance etc.