scholarly journals Diminution of Harmonics in a Cascaded Multilevel Inverter Using Third Harmonics Injection PWM Technique

2019 ◽  
Vol 8 (3) ◽  
pp. 7493-7497
Keyword(s):  
Power Distribution ◽  
Pulse Width Modulation ◽  
Semiconductor Device ◽  
Multilevel Inverter ◽  
Control Technique ◽  
Circuit Performance ◽  
Ac Motor ◽  
Three Phase ◽  
Cascaded Multilevel Inverter ◽  
Three Phase Inverter

This paper is deals the Asymmetric cascaded three phase hybrid multilevel inverter for ac motor application. This proposed hybrid three phase inverter is used to diminishes the no of semiconductor device requirement and enhances the power distribution of each H-bridge cell. The Third Harmonics Injection (THIPWM) with sinusoidal pulse width modulation (SPWM) are used to regulate the output voltage of the inverter, further incorporate the Phase disposition (PD) and Alternative Phase Opposition disposition PWM (APOD) techniques. This control technique is applied to minimize the current harmonic and get the better recital of the system. The circuit is simulated using Mat-lab Simu-link. The circuit performance such as THD, line voltage and phase voltage are compared using two hybrid modulation techniques and verified with simulation results.

Selective harmonic elimination pulse width modulation for three-phase cascaded multilevel inverter

2021 ◽  
Author(s):  
Baharuddin Ismail ◽  
Muzamir Isa ◽  
M. Z. Aikhsan ◽  
M. N. K. H. Rohani ◽  
C. L. Wooi ◽  
...  
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Multilevel Inverter ◽  
Harmonic Elimination ◽  
Three Phase ◽  
Selective Harmonic Elimination ◽  
Cascaded Multilevel Inverter

scholarly journals Design of a New Duty Cycle Modulation to Improve the Energy Quality of an Insulated Production System

2021 ◽  
Vol 23 (4) ◽  
pp. 311-319
Author(s):  
Clément Kengnou Donfack ◽  
Charles Hubert Kom ◽  
Jean Jacques Mandeng ◽  
Félix Paune
Keyword(s):  
Duty Cycle ◽  
Pulse Width Modulation ◽  
Renewable Energy Sources ◽  
Control Technique ◽  
Three Phase ◽  
New Strategy ◽  
The One ◽  
Sinusoidal Pulse Width Modulation ◽  
Three Phase Inverter

In this article, we propose a new strategy for controlling three-phase inverters of renewable energy sources, based on the Duty Cycle Modulatiom (DCM) control using the Park and Fortescue transformation (DCM-dq-dih). Our goals in setting and using this strategy are, on the one hand, to induce a lower harmonic rate as compared to the SPWM (Sinusoidal Pulse Width Modulation) strategy and on the other hand, this control technique enables the inverter to deliver balanced voltages, be it in the event of load unbalance. Our design is built on the basis of the known mode of DCM control of single-phase inverters. Thus, the control of our three-phase inverter is carried out by three DCM modules whose set-points come from the direct, reverse and homopolar strings reconstructed in a Park landmark. This new strategy was tested on the MATLAB Simulink environment for a load of 160 kW. The test results show a reduced Total Harmonic Distorsion (THD) of 2.7 times compared to the THD produced by the SPWM control strategy. In addition, regulation of the symmetrical components during load unbalance is ensured so that the inverter always delivers constant and balanced voltages.

scholarly journals Implementation of space vector modulation for two level Three-phase inverter using dSPACE DS1104

2020 ◽  
Vol 20 (2) ◽  
pp. 744
Author(s):  
Ismail Bouyakoub ◽  
Rachid Taleb ◽  
Hacene Mellah ◽  
Abdelaziz Zerglaine
Keyword(s):  
Pulse Width Modulation ◽  
Motor Drive ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Digital Implementation ◽  
Control Techniques ◽  
Ac Motor ◽  
Three Phase ◽  
Vector Modulation ◽  
Three Phase Inverter

With increasing research and advancement in solid-state power electronic devices and microprocessors, various inverter control techniques employing Pulse Width Modulation (PWM) are becoming popular especially in AC motor drive applications. The most commonly used techniques are Sinusoidal PWM (SPWM) and Space Vector modulation PWM (SVPWM). SVPWM is considered to be superior to the SPWM because of better DC bus utilization. In this paper, a real-time digital implementation of SVPWM algorithm for three-phase two level inverter using dSPACE DS1104. The results obtained from the experimentation are closer to that of simulation, which confirms the validity of the implemented algorithm.

Asymmetrical Cascaded Multi Level Inverter Using Control Freedom Pulse Width Modulation Techniques

2016 ◽  
Vol 7 (3) ◽  
pp. 854
Author(s):  
Periyaazhagar D ◽  
Irusapparajan G
Keyword(s):  
Pulse Width ◽  
Degrees Of Freedom ◽  
Pulse Width Modulation ◽  
Multilevel Inverter ◽  
Switching Frequency ◽  
Three Phase ◽  
Modulation Techniques ◽  
Multi Level ◽  
Cascaded Multilevel Inverter ◽  
Sinusoidal Pulse Width Modulation

In this paer, the suggested topologies are gained by cascading a full bridge inverter with dissimilar DC sources. This topology has a several new patterns adopting the fixed switching frequency, multicarrier control freedom degree with mixture conceptions are established and simulated for the preferred three-phase cascaded multilevel inverter. In outstanding switching arrangement terminations, there are convinced degrees of freedom to produce the nine level AC output voltages with terminated switching positions for producing altered output voltages. These investigations focus on asymmetrical cascaded multilevel inverter engaging with carrier overlapping pulse width modulation (PWM) topologies. These topologies offer less amount of harmonics present in the output voltage and superior root mean square (RMS) values of the output voltages associated with the traditional sinusoidal pulse width modulation. This research studies carries with it MATLAB/SIMULINK based simulation and experimental results obtained using appropriated prototype to prove the validity of the proposed concept.

scholarly journals Hybrid Control Technique-Based Three-Phase Cascaded Multilevel Inverter Topology

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 26912-26921 ◽  
Author(s):  
Sidharth Sabyasachi ◽  
Vijay B. Borghate ◽  
Raghavendra Reddy Karasani ◽  
Santosh Kumar Maddugari ◽  
Hiralal M. Suryawanshi
Keyword(s):  
Hybrid Control ◽  
Multilevel Inverter ◽  
Control Technique ◽  
Three Phase ◽  
Cascaded Multilevel Inverter ◽  
Inverter Topology

scholarly journals Asymmetric hybrid multilevel inverter with reduced harmonic using hybrid modulation technique

2020 ◽  
Vol 11 (2) ◽  
pp. 605
Author(s):  
Satish Kumar ◽  
M. Sasi Kumar
Keyword(s):  
Semiconductor Device ◽  
Multilevel Inverter ◽  
Control Technique ◽  
Voltage Source ◽  
Current Harmonic ◽  
Modulation Technique ◽  
Hybrid Modulation ◽  
Three Phase ◽  
Asymmetric Hybrid ◽  
Multi Level

<span>This paper studies the Asymmetric cascaded three phase multilevel inverter developed with hybrid modulation technique applied for an industrial application. The aim of this paper to reduce the Total harmonics distortion in the cascaded multi level inverter by introducing the new concept to develop the three phase CMLI. This inverter has two segments, one segment has H-bridge inverter and another segment has sequential arrangement of power semi conductor switches with asymmetrical voltage source in the ratio of 1:2. Similarly develop the segments for other phases. This new topology is called as Hybrid MLI. This hybrid MLI is used to reduce the no of semiconductor device requirement and the Total harmonics distortion.  The inverter is controlled by Phase disposition (PD) and alternative phase opposition disposition PWM technique (APOD). This control technique is used to minimize the current harmonic and increase the system performance. The circuit is simulated using Matlab circuit and its performance is compared using PD and APOD PWM techniques and verified with simulation results.</span><p> </p>

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