A Novel Neuro-Fuzzy Controller for Multilevel Renewable Energy System

2015 ◽  
Vol 4 (1) ◽  
pp. 20
Author(s):  
T PAVAN KUMAR ◽  
B N KARTHEEK
Keyword(s):  
Power Electronics ◽  
Fuzzy Controller ◽  
Energy System ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Output Terminal ◽  
Switching Losses ◽  
Grid Connection ◽  
Neuro Fuzzy ◽  
The Cost

<p>Recently, Development and the utilization of single phase based multilevel inverters has been increased. This paper proposes concept based new topology based seven level inverter with less number of power electronics switches with utility grid connection. This proposed multilevel inverter operates with only eight power electronics switches at their fundamental frequency. This inverter produces seven level output from the input here we considered as a photovoltaic system. The cost, complexity, switching losses are small due to because of usage of less number of switches. The DC/DC converter receives input from which the three positive output voltages are generated and the multilevel inverter performs as a polarity reversal that provides both the positive and negative cycle output. For further enhancement in the output waveform, the filter circuit can be integrated in the output terminal of the multilevel inverter. This paper also proposed a concept of a neuro-fuzzy controller for controlling the seven level inverter. The simulation results are observed by means of MATLAB simulink toolbox.</p>

scholarly journals Solar Photovoltaic System-Based Reduced Switch Multilevel Inverter for Improved Power Quality

2022 ◽  
Vol 4 (1) ◽  
pp. 1-13
Author(s):  
Madhu Andela ◽  
Ahmmadhussain Shaik ◽  
Saicharan Beemagoni ◽  
Vishal Kurimilla ◽  
Rajagopal Veramalla ◽  
...  
Keyword(s):  
Output Voltage ◽  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Solar Photovoltaic ◽  
Switching Losses ◽  
Minimum Number ◽  
Multi Level ◽  
Solar Photovoltaic System

This paper deals with a reduced switch multi-level inverter for the solar photovoltaic system-based 127-level multi-level inverter. The proposed technique uses the minimum number of switches to achieve the maximum steps in staircase AC output voltage when compared to the flying capacitor multi-level inverter, cascaded type multilevel inverter and diode clamped multi-level inverter. The use of a minimum number of switches decreases the cost of the system. To eliminate the switching losses, in this topology a square wave switch is used instead of pulse width modulation. Thereby the total harmonic distortion (THD) and harmonics have been reduced in the pulsating AC output voltage waveform. The performance of 127-level MLI is compared with 15 level, 31-level and 63-level multilevel inverters. The outcomes of the solar photovoltaic system-based 127-level multi-level inverter have been simulated in a MATLAB R2009b environment.

scholarly journals Design and analysis of Impedance Source based Asymmetric Inverter for PV Application

2019 ◽  
Vol 9 (1) ◽  
pp. 1593-1599
Keyword(s):  
Multilevel Inverter ◽  
Asymmetric Structure ◽  
Voltage Gain ◽  
Pv System ◽  
Matlab Simulink ◽  
Network Parameters ◽  
Switching Losses ◽  
The Cost ◽  
Large Output

A novel Impedance source seven level Asymmetric Multilevel topology for PV system is presented here. It comprises of a Quasi Z source network and Asymmetric Multilevel Inverter (QZ-AMLI) to synthesize better quality output with low THD. Quasi Z Source Converter (QZSC) with large voltage gain provides a positive boost voltage to an asymmetric multilevel inverter. Asymmetric structure offers large output levels with a smaller number of switches and input sources. QZS network parameters provide a regulated DC supply to the Asymmetric Multilevel inverter (AMLI). DC input magnitude of the inverter is decided by an algorithm. Switching signals are applied in proper sequence to generate required magnitude at the AC output. Regulated DC output voltages of 16V and 32V are obtained at the output of QZSC1 and QZSC2. 7 level inverter output with a magnitude of 48V is obtained by simulation using Matlab /Simulink. The system ensures lower switching losses, reduced gate drive circuitry and improved harmonic profile. Reduced switch and filter requirements lessen the cost of the system.

Energy visibility of a modeled photovoltaic/diesel generator set connected to the grid

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Majid K. Abbas ◽  
Qusay Hassan ◽  
Marek Jaszczur ◽  
Zuhair S. Al-Sagar ◽  
Ali N. Hussain ◽  
...  
Keyword(s):  
Rural Areas ◽  
Solar Irradiance ◽  
Energy System ◽  
Photovoltaic System ◽  
Weather Data ◽  
Economic Optimization ◽  
Diesel Generator ◽  
Time Step ◽  
Cost Of Energy ◽  
The Cost

Abstract The paper presents a technical and economic analysis for two energy systems (conventional and renewable) with grid connection. The investigation was carried out using an experimental measurement for the desired load and weather data (solar irradiance and ambient temperature), were 5.1 kWh the daily energy consumption as measured and 4.6 kWh/m2/day the annual average of the solar irradiance. The simulation process was done by using MATLAB and HOMER software at a 1 min time step resolution. The economic optimization objective presented for two energy system scenarios (i) photovoltaic/grid and (ii) diesel/grid, takes into account the economic aspects and component prices based on the Iraqi market and regulations. The diesel generator, very popular in rural areas, is designed to work during the same period as the photovoltaic system (only during day hours). The yearly operating hours were recorded at 4380 h/year, and energy generation was approx. 2349 kWh/year while fuel consumption was 1826 L/year. The results showed that the photovoltaic system in scenario (i) can generate about 7895 kWh, and for the diesel generator in scenario (ii), it can generate approximately 2346 kWh. Furthermore, for scenario (i) the levelized net present cost is $1079 and the cost of energy is about $0.035/kWh, while for scenario (ii) the levelized net present cost is $12,287 and the cost of energy is $0.598/kWh. The use of solar energy is highly recommended compared to diesel generators due to the lowest cost and delivery of energy to the grid. Furthermore, it can capture carbon dioxide by about 5295 kg/year.

scholarly journals Comparison of New Multilevel Inverter Topology with Conventional Topologies Used for Induction Heating System

2022 ◽  
Vol 18 (1) ◽  
pp. 48-57
Author(s):  
Aws Al-Jrew ◽  
Jawad Mahmood ◽  
Ramzy Ali
Keyword(s):  
Induction Heating ◽  
Harmonic Distortion ◽  
Heating System ◽  
Multilevel Inverter ◽  
Multilevel Inverters ◽  
Switching Losses ◽  
Power Switches ◽  
The Cost ◽  
Inverter Topology ◽  
Induction Heating System

In this article, a comparison of innovative multilevel inverter topology with standard topologies has been conducted. The proposed single phase five level inverter topology has been used for induction heating system. This suggested design generates five voltage levels with a fewer number of power switches. This reduction in number of switches decreases the switching losses and the number of driving circuits and reduce the complexity of control circuit. It also reduces the cost and size for the filter used. Analysis and comparison has been done among the conventional topologies (neutral clamped and cascade H-bridge multilevel inverters) with the proposed inverter topology. The analysis includes the total harmonic distortion THD, efficiency and overall performance of the inverter systems. The simulation and analysis have been done using MATLAB/ SIMULINK. The results show good performance for the proposed topology in comparison with the conventional topologies.

Multicarrier-SPWM Based Novel 7-Level Inverter Topology with Photovoltaic System

2017 ◽  
Vol 8 (2) ◽  
pp. 826
Author(s):  
R. Palanisamy ◽  
V. Sinmayee ◽  
K. Selvakumar ◽  
K. Vijayakumar
Keyword(s):  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Pv System ◽  
Switching Losses ◽  
Common Mode Voltage ◽  
Voltage Stress ◽  
Inverter Topology ◽  
Sinusoidal Pulse Width Modulation

<p>In this paper a novel 5 switch seven level DC-AC inverter is being proposed. The proposed multilevel inverter uses reduced number of switches as compared to the switches used in the conventional multilevel inverter. The inverter has been designed to generate a 7 level AC output using 5 switches. The voltage stress on each of the switches as well as the switching losses is found to be less, minimized common mode voltage (CMV) level and reduced total harmonic distortion. The proposed 7-level inverter topology has four dc sources, which is energized through the PV system. Proposed inverter is controlled with help of multicarrier sinusoidal pulse width modulation (MCSPWM).The simulation and hardware results were verified using matlab simulink and dspic microcontroller respectively.</p>

scholarly journals Multilevel Inverter Topology with Reduced Number of Switches

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1730-1733
Keyword(s):  
Power Electronics ◽  
High Power ◽  
Power Loss ◽  
Multilevel Inverter ◽  
Multiple Level ◽  
Complete Conversion ◽  
Switching Losses ◽  
Inverter Topology

The commencement of multilevel inverter has enamored the researchers owing to its applications for medium and high power. Moreover there has consistently been a necessity for an approach with reduced number of switches. Bearing this in mind, this article presents an asymmetrical multilevel inverter with a switching approach employing reduced number of power electronics equipments. The increase in the level of output, number of switching equipments besides with the switching states enhances. As a consequence, higher switching losses occurs that prompts power loss. Accordingly, the efficiency of the complete conversion network diminishes. The significant characteristics of this submitted work is that the module can be accomplished as sub multiple level assembly. Progressively, with minimal rise in the switching elements, all number of levels can be elongated.

scholarly journals Evaluation of DC-DC converter using renewable energy sources

2020 ◽  
Vol 11 (4) ◽  
pp. 1918
Author(s):  
Rajapandian B ◽  
Sundarrajan G.T
Keyword(s):  
Renewable Energy ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Switching Losses ◽  
High Output Voltage ◽  
Intelligent Methods ◽  
The Cost ◽  
High Output

This work analyses and evaluates the performance of renewable energy sources-based converters using Intelligent techniques. The objective of the research is to maintain the reliability of the converters such that it decreases the switching losses, high duty cycle and recycles the leakage energy. To accomplish the high output voltage gain converters are designed with different intelligent methods. Due to heavy demands, the cost of fossil fuel has gone up.so the need for the time is identifying and developing renewable energy sources along with developing new technologies for energy saving in renewable energy system to fight the issues plaguing the environment.

scholarly journals Análisis del Potencial Energético Solar Basado en Mediciones in Situ en el Municipio de Acacías - Meta

2018 ◽  
Vol 3 (1) ◽  
pp. 690
Author(s):  
Angel Alejandro Rodriguez Aya ◽  
John Alejandro Figueredo Luna ◽  
Juan Alejandro Chica García
Keyword(s):  
Solar Energy ◽  
Solar Power ◽  
Cost Benefit ◽  
Energy Systems ◽  
Energy System ◽  
Photovoltaic System ◽  
Cost Benefit Ratio ◽  
The Cost ◽  
The University

This research presents the preliminary results of the research entitled Design and implementation of a fixed and mobile photovoltaic system to capture the solar power, determining the cost-benefit ratio for the Acacías CEAD, a study that will determine the solar power that affects the University National Open and Distance - UNAD of the municipality of Acacías and deliver a study to determine the solar radiation of the area, in order to verify the potentiality and feasibility of installing solar energy systems in the University and nearby areas; It has been possible to determine that solar power in the area per m² is close to 45% of that measured by IDEAM (Hydrology, Meteorology and Environmental Studies Institute in Colombia), with a potential absorption of 331W per day in an area of 1m², which makes feasible a possible implementation of a solar energy system. Keywords: Solar power, solar energy, solar panel, energy efficiency.

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