scholarly journals Integration and Performance Investigation of Multilevel Inverter with Half Bridge and Developed H-bridge Configurations

2021 ◽  
Vol 183 (41) ◽  
pp. 51-54
Author(s):  
Mukhtiar Ahmed Mahar ◽  
Mukhtiar Ahmed ◽  
Aneeqa Sattar
Keyword(s):  
Multilevel Inverter ◽  
And Performance

scholarly journals Microcontroller Based Flexible Modulation Scheme of MLI Operation for Selective Lower Levels: A Knowledge Based Approach

2016 ◽  
Vol 2016 ◽  
pp. 1-11
Author(s):  
R. K. Dhatrak ◽  
R. K. Nema ◽  
D. M. Deshpande
Keyword(s):  
Pulse Generation ◽  
Multilevel Inverter ◽  
Experimental Results ◽  
Modulation Scheme ◽  
Inductive Load ◽  
Medium Voltage ◽  
Knowledge Based ◽  
Common Mode Voltage ◽  
Power Modules ◽  
And Performance

In today’s industrial world multilevel inverter (MLI) got a significant importance in medium voltage application and also a very potential topic for researchers. It is experienced that studying and comparing results of multilevel inverter (MLI) at distinct levels are a costlier and time consuming issue for any researcher if he fabricate different inverters for each level, as designing power modules simultaneously for different level is a cumbersome task. In this paper a flexible quotient has been proposed to recognize possible conversion of available MLI to few lower level inverters by appropriately changing microcontroller programming. This is an attempt to obtain such change in levels through simulation using MATLAB Simulink on inductive load which may also be applied to induction motor. Experimental results of pulse generation using dsPIC33EP256MC202 demonstrate the feasibility of proposed scheme. Proposed flexible quotient successfully demonstrates that a five-level inverter may be operated as three and two levels also. The paper focuses on odd levels only as common mode voltage (CMV) can be reduced to zero and performance of drives is better than even level. Simulated and experimental results are given in paper.

ANALYSIS OF A GENERALIZED SYMMETRICAL MULTILEVEL INVERTER

2011 ◽  
Vol 20 (02) ◽  
pp. 299-311 ◽  
Author(s):  
M. R. BANAEI ◽  
E. SALARY
Keyword(s):  
Control System ◽  
Drive System ◽  
Multilevel Inverter ◽  
Multilevel Converter ◽  
Dc Voltage ◽  
Ac Drive ◽  
Voltage Generation ◽  
Simulation Results ◽  
And Performance ◽  
Main Components

The cascade multilevel converter requires the least number of main components among traditional multilevel converter. In this paper, comparison of main components between proposed and traditional converter is shown. In addition, a generalized symmetrical multilevel inverter is proposed. The proposed multilevel inverter can generate DC voltage levels similar to other topologies with less number of components. The proposed topology results in reduction of installation area and cost and has simplicity of control system. This converter has been used in an AC drive system. The operation and performance of the proposed generalized multilevel converter has been verified by the simulation results using SIMULINK/MATLAB. The simulation results show its capability in voltage generation and speed control.

scholarly journals Multicarrier PWM Based Control of Modular Multilevel Inverter with Grid Connected Solar PV System

2021 ◽  
Vol 7 (05) ◽  
pp. 72-80
Author(s):  
Saminathan S & Dr. Ranjithkumar K
Keyword(s):  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Pv System ◽  
Voltage Balancing ◽  
Multilevel Inverters ◽  
Solar Pv System ◽  
And Performance ◽  
Inverter Topology ◽  
Multicarrier Pwm

In this work, a new modular multilevel inverter topology is introduced for a single phase grid connected Photovoltaic system. This multilevel inverter use less number of switches to generate seven levels compared to other conventional multilevel inverters. This requires only one isolated dc source to operate. So it is suitable for renewable energy application. This inverter is designed by submodule configuration; each sub module contains two switches and one DC link capacitor. The sub modules will be added to the inverter depending on number of levels. The voltage balancing of DC link capacitor is carried out by Y matrix PWM technique. Because of Y matrix PWM technique, the inverter gets a self capacitor voltage balancing ability. So there is no need of external devices required for balancing the voltage of capacitor. A PLL for grid integration and LCL filter are designed and integrated with this inverter. The simulation of proposed system is carried out by MATLAB/SIMULINK and performance of THD is monitored as per standards

scholarly journals An enhanced 17-level hybridized multilevel inverter with stair case modulation

2020 ◽  
Vol 11 (4) ◽  
pp. 1872
Author(s):  
Hemalatha Javvaji ◽  
Basavaraja Banakara
Keyword(s):  
Renewable Energy ◽  
Solid State ◽  
Power Consumption ◽  
Output Voltage ◽  
Multilevel Inverter ◽  
Energy Applications ◽  
Multi Level ◽  
Simulation Results ◽  
And Performance ◽  
Cascaded Multilevel Inverter

This paper proposes a Hybridized Symmetric Cascaded Multilevel Inverter for voltage levels ranging from 5 levels to 17 levels. The proposed Multi Level Inverter (MLI) topology is built using a modified H-bridge inverter that results in an increased output voltage levels with a smaller number of solid-state switches. This technique enhances the h-bridge configuration from three level to five level by means of a bi-directional switch at source. Gating pulses of hybridized symmetric MLI are generated through staircase modulation. The operation and performance of the proposed topology is tested for different output voltage levels, simulation results prove that the proposed technique results in less THD at all levels with lesser power consumption and are easily applicable for renewable energy applications.

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