scholarly journals Improved reliable multilevel inverter for renewable energy systems

2019 ◽  
Vol 14 (3) ◽  
pp. 1141
Author(s):  
Sujatha M ◽  
A.K. Parvathy
Keyword(s):  
Renewable Energy ◽  
Simulation Model ◽  
Output Voltage ◽  
Energy Systems ◽  
Multilevel Inverter ◽  
Voltage Level ◽  
Renewable Energy Systems ◽  
Matlab Simulink ◽  
Multilevel Inverters ◽  
Main Drawback

<p>New improved multilevel inverter (MLI) topology for Renewable energy systems is proposed in this paper. Cascaded multilevel inverters (CMLI) produce an output voltage level depending on the number of individual sources connected. The main drawback of CMLI is, as the output voltage level increases in number, the switches used in the device also increases and hence the complexity of the circuit increases. As the number of switches increases, the reliability of the circuit decreases. In this paper a novel MLI topology, which employs lesser number of switches, is proposed. A simulation model of CMLI and the proposed MLI has been built in MATLAB/SIMULINK. The reliability of the CMLI and the new topology MLI is analyzed by using MIL-HDBK-217.  </p>

scholarly journals Aquila Optimization Based Harmonic Elimination in a Modified H-Bridge Inverter

2022 ◽  
Vol 14 (2) ◽  
pp. 929
Author(s):  
Md Reyaz Hussan ◽  
Mohammad Irfan Sarwar ◽  
Adil Sarwar ◽  
Mohd Tariq ◽  
Shafiq Ahmad ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Simulation Model ◽  
Smart Grids ◽  
Output Voltage ◽  
Input Voltage ◽  
High Quality ◽  
Matlab Simulink ◽  
Multilevel Inverters ◽  
Harmonic Elimination ◽  
Wide Range

Multilevel inverters (MLIs) are capable of producing high-quality output voltage and handling large amounts of power. This reduces the size of the filter while also simplifying the circuitry. As a result, they have a wide range of applications in industries, particularly in smart grids. The input voltage boosting feature is required to use the MLI with renewable energy. Moreover, many components are required to get higher output voltage levels that add weight and cost to the circuit. Numerous MLI topologies have been identified to minimize the losses, device count, and device ratings. A seven-level modified H-bridge inverter with a reduced component count, and reduced THD is presented in this paper. Two DC sources with six IGBTs have been used to generate a seven-level output voltage, and the Aquila Optimizer (AO) has been implemented to get the regulated output. MATLAB/Simulink environment has been used for designing the simulation model. Furthermore, the simulation result has been validated in the laboratory on a hardware setup using the DSP-TMS320F28335 Launchpad. With the reduced number of switching devices as well as the dc supply, the size of the inverter is compacted and becomes more economical.

Comparison of Switching Angle Arrangement Techniques in Single-Phase Boost Multilevel Inverter for Low-THD Operation

2015 ◽  
Vol 793 ◽  
pp. 167-171
Author(s):  
Mohd Aizuddin Yusof ◽  
Yee Chyan Tan ◽  
M. Othman ◽  
S.S. Lee ◽  
M.A. Roslan ◽  
...  
Keyword(s):  
Output Voltage ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Solar Photovoltaic ◽  
Voltage Waveform ◽  
Voltage Level ◽  
Software Simulation ◽  
Multilevel Inverters ◽  
Simulation Results

Multilevel inverters are one of the preferred inverter choices for solar photovoltaic (PV) applications. While these inverters are capable of producing AC staircase output voltage waveform, the total harmonic distortion (THD) of the output voltage waveform can become worse if the switching angle of each voltage level is not carefully chosen. In this paper, four switching angle arrangement techniques are presented and the switching angles generated by these techniques are applied to a new single-phase boost multilevel (SPBM) inverter. The performance of 3-, 5-, 7-, 9-and 11-level SPBM inverter having four different sets of switching angles derived using the aforementioned techniques have been evaluated and compared using PSIM software. Simulation results show that one of the techniques is able to produce an output voltage waveform with the lowest THD, whilst the other generates an output voltage waveform with the highest fundamental voltage component.

scholarly journals Compare the Symmetric Hybridized Cascaded MLI with 17 levels with the Asymmetric Switched Capacitor MLI Topologies for Dynamic Loading

2021 ◽  
Vol 9 (VII) ◽  
pp. 1951-1958
Author(s):  
Jayesh B. Patil
Keyword(s):  
Renewable Energy ◽  
Dynamic Loading ◽  
Output Voltage ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Total Harmonic Distortion ◽  
Switched Capacitor ◽  
Matlab Simulink ◽  
Energy Applications ◽  
Load Disturbance

This article builds a symmetric hybridized cascaded a switching capacitor unit in a multilayer inverter and compares it to For 17 level inverters, A switched capacitor unit is utilized with an asymmetric multilevel inverter. In the symmetric hybridized multilevel inverter design, a In the midst of a dual-input dc source, there is a bi-directional switch is utilized to create a modified H-bridge inverter with a five-level output voltage instead of three. In the proposed scenario, In an asymmetric multilevel inverter, the switched capacitor unit substitutes the dc sources. which enlarges By a factor of two, The output voltage has been increased. and the voltage levels at the loads are increased by a factor of two. MATLAB-SIMULINK was used to verify the suggested topology using the staircase modulation approach. The findings show that multilayer inverter topologies with low total harmonic distortion, fewer switches, With greater levels of output voltage are better stable during load disturbance circumstances, making them ideal for renewable energy applications.

scholarly journals Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6627
Author(s):  
Vijayaraja Loganathan ◽  
Ganesh Kumar Srinivasan ◽  
Marco Rivera
Keyword(s):  
Renewable Energy ◽  
Significant Role ◽  
Direct Current ◽  
Simulation Study ◽  
Output Voltage ◽  
Single Phase ◽  
Energy Systems ◽  
Experimental Setup ◽  
Renewable Energy Systems ◽  
The Cost

In this paper, a ‘k’-state inverter producing a higher number of voltage levels was designed, and we studied the inverter’s working. Further, a tri-state inverter was derived from the ‘k’-state inverter, which could build a maximum number of output voltage levels with the requirement of fewer components, thereby reducing the cost and size. A single Tri-state architecture generates three direct current (D.C.) voltage levels; therefore, cascading five tri-state architectures can generate 242 levels of DC voltages. Further, the inversion is done via the H bridge, which leads to 485 levels of the output voltage. Algorithms to design the amplitude of voltage sources and the generation of pulses are discussed in this paper. The proposed tri-state inverter takes a significant role in advancing renewable energy systems in utilizing inverter technology. A simulation study validated the operation of the proposed inverter. Moreover, an experimental setup was built for a single-phase 485-level inverter, and the structure’s performance was verified through the experimental results.

Output-voltage feedback control topology for inverters dedicated to renewable energy systems

2017 ◽  
Vol 45 (12) ◽  
pp. 2270-2280 ◽  
Author(s):  
Mustapha Arab ◽  
Abdallah Zegaoui ◽  
Pierre Petit ◽  
Abdelkader Djahbar ◽  
Michel Aillerie
Keyword(s):  
Renewable Energy ◽  
Feedback Control ◽  
Output Voltage ◽  
Energy Systems ◽  
Renewable Energy Systems ◽  
Voltage Feedback ◽  
Control Topology

scholarly journals Modelling and Analysis of Novel Topology for Multilevel Inverter With Reduce Number of Switches

2018 ◽  
Vol 7 (4.5) ◽  
pp. 379 ◽  
Author(s):  
Rohit Kumar ◽  
Shimi S.L ◽  
Shivendra Kaura
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Energy Sources ◽  
Voltage Level ◽  
Multilevel Inverters ◽  
Harmonic Elimination ◽  
Increasing Demand ◽  
Inverter Topology

The demand of quality power is increasing continuously. The problem of global warming and rate of decrease of non-renewable energy sources are increasing day by day. Hence renewable energy sources such as fuel cell, solar, Magneto hydro Dynamic (MHD), geothermal are the best alternatives to solve the problem of environmental issue and increasing demand of energy.  The output of these resources is dc, therefore to connect these resources to the grid, multilevel inverter is the key device. But the output of multilevel inverter has power quality issues such as harmonic generation and notching due to conversion of dc to ac and high number of switch. Hence, this paper deals with harmonic elimination using Genetic Algorithm based Selective Harmonic Elimination (GA-SHE) techniques for asymmetric and symmetric topology of MLI. In the present study, comparative study among the 5-level, 7-level, 9-level, 11-level and 15-level multilevel inverters with reduced number of switches topologies has been discussed. A novel topology of 15-level inverter which consists least number of switches has been designed for a desired voltage level. Also, the comparison of Total harmonic distortion developed in the output voltage generated by different topology at different levels with the proposed 15-level inverter topology are discussed. 

Sign in / Sign up

Export Citation Format

Share Document