Modified hybrid PWM technique for cascaded MLI and cascaded MLI application for DTC drive

Samy, Mohammed; Mokhtar, Mohamed; Saad, Naggar H.; El-Sattar, Ahmed A.

doi:10.11591/ijpeds.v13.i1.pp47-57

Cited by 5 publications

(5 citation statements)

References 21 publications

(25 reference statements)

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“…Multilevel inverters (MLIs) have attracted a lot of attention in recent years for their potential use in electrical and industrial systems, as well as their high efficiency, simplicity of operation, and lack of electromagnetic interference (EMI). Additionally, MLIs may be quickly connected to renewable energy sources, including photovoltaic solar panels and wind turbines [1]- [3]. Numerous MLI topologies have been suggested by scholars since the 1970s.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis for induction motor fed by reduced switch symmetrical multilevel inverter topology

Gajula,

Manivannan,

Reddy

2024

IJPEDS

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Due to its capacity to supply more voltage levels than conventional 2-level inverters, multilevel inverters have attracted a lot of attention in recent years. Multilevel inverters may produce output waveforms that nearly approximate sinusoidal waveforms because to this characteristic, which also significantly lowers harmonic distortion. In many different power conversion systems, the introduction of reduced switch symmetrical multilevel inverter topologies has drawn significant interest. Numerous benefits, such as higher output voltage quality, reduced harmonic distortions, and increased power conversion efficiency, are provided by these novel topologies. The inclusion of these inverters in the feeding of induction motors is one of their many prominent uses. In this paper, a generalized topology is presented that generates nine levels using nine switching devices. To reduce complexity, switching pulses are generated using a low frequency pulse width modulation technique. MATLAB/Simulink is used to analyze the performance assessment of a unique three-phase symmetric cascaded multilevel inverter-based reduced switch symmetrical inverter fed induction motor drive, brushless DC (BLDC) motor and grid has been verified. According to the findings the total harmonic distortion (THD) is found to be 15% for a three-phase system and as the number of levels increases to 17 level the THD is 7.10%.

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Section: Introductionmentioning

confidence: 99%

Performance analysis for induction motor fed by reduced switch symmetrical multilevel inverter topology

Gajula,

Manivannan,

Reddy

2024

IJPEDS

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show abstract

“…MLIs can also be readily linked to a number of renewable energy sources, such as photovoltaic and wind turbines. Numerous MLI topologies and hybrid pulse width modulation techniques have been proposed since the 1970s [1]- [5]. Furthermore, due to the high voltage requirements and switch stress, the 2-level inverter will only be used for low and medium voltage applications.…”

Section: Introductionmentioning

confidence: 99%

Solar PV based seventeen level reduced switch symmetrical multilevel inverter topology fed induction motor

Gajula,

Manivannan,

Reddy

2024

IJPEDS

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Multilevel inverters have received a lot of interest in recent years due to their ability to deliver more voltage levels than typical two-level inverters. Because of this property, multilevel inverters can produce output waveforms that closely resemble sinusoidal waveforms, lowering harmonic distortion dramatically. The emergence of reduced switch symmetrical multilevel inverter topologies has developed the curiosity of many different power conversion systems. These new topologies offer numerous advantages, including greater output voltage quality, fewer harmonic distortions, and increased power conversion efficiency. The inclusion of these inverters in the feeding of induction motors is one of their many prominent uses. A 17 levels of multi-level inverter (MLI) topology is presented with reduced switch count and harmonic reduction for power quality improvement. The inverter is fed by isolated equal photovoltaic panels which act as direct current or DC source. To reduce complexity, switching pulses are generated using hybrid pulse width modulation technique which is designed as controller. Through the use of MATLAB/Simulink, the performance assessment of a unique cascaded multilevel inverter-based reduced switch symmetrical inverter feeding an induction motor drive has been verified. The harmonic distortion with reduced switches obtained is 7.47% which is comparatively less than when compared with conventional cascaded H-bridge topology.

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“…In recent years, there has been a lot of interest in multi-level inverters (MLIs) because of their potential uses in industrial and electrical systems, as well as their minimal electromagnetic interference, ease of control, and high efficiency. Additionally, it is possible to link it up to various renewable energy sources such as wind turbines, and photovoltaic solar panels [1]- [8]. Since 1970, various topologies have been developed [9].…”

Section: Introductionmentioning

confidence: 99%

A cascade multi-level inverter topology with reduced switches and higher efficiency

Al-Atbee

Abdulhassan

2023

Bulletin EEI

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The use of multi-level inverter (MLI) technologies in high-power, medium-voltage energy regulation has been more popular in recent years. Despite the fact that the multilayer inverter has a lot of benefits, it has certain disadvantages in the layer of higher levels due to the enormous number of semiconductor switches that it employs in its construction. This may result in the inverter being of a huge size and costing a lot of money, as well as a significant rise in losses. As a result, the new MLI is suggested to minimize the number of switches in order to alleviate these challenges. This article describes a cascaded multilevel inverter with lower devices. The suggested cascaded multilevel inverter is intended for use in minimizing total harmonic distortion (THD), as shown in MATLAB/Simulink by the graph. Multilevel inverters benefit from the switching pattern of semiconductor switches, which may be used to improve their overall performance. This approach lowers the switching loss while simultaneously increasing the efficiency. In order to validate the suggested approach, simulations are carried out using the MATLAB/Simulink programming environment.

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Modified hybrid PWM technique for cascaded MLI and cascaded MLI application for DTC drive

Cited by 5 publications

References 21 publications

Performance analysis for induction motor fed by reduced switch symmetrical multilevel inverter topology

Performance analysis for induction motor fed by reduced switch symmetrical multilevel inverter topology

Solar PV based seventeen level reduced switch symmetrical multilevel inverter topology fed induction motor

A cascade multi-level inverter topology with reduced switches and higher efficiency

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