Reduction of Common Mode Voltage in Asymmetrical Dual Inverter Configuration Using Discontinuous Modulating Signal Based PWM Technique

Reddy, M. Harsha Vardhan; Reddy, T. Bramhananda; Reddy, B. Ravindranath; Suryakalavathi, M.

doi:10.6113/jpe.2015.15.6.1524

Cited by 8 publications

(2 citation statements)

References 25 publications

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“…In this topology, a DI system was considered which worked in agreement with the fundamental voltage-second principle and based on this, the DC source ratio was selected. Thus, to reduce the switching losses in DI, SVM strategy was proposed [31]. From the result analysis, it was found that when compared to other traditional PWM techniques, the switching losses were decreased up to 50%.…”

Section: Open-end Winding Induction Motor Drive (Oewimd)mentioning

confidence: 99%

A Scalar Decoupled PWM Technique for a Three-Level Symmetrical Dual Inverter Fed OEWIM Drive for Electric Vehicle

Venugopalan

Jegathesan

Reddy

2021

IJRER

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Dual inverter (DI) fed induction motor drives are employed in electric vehicle to control the speed and obtain better performance. Asymmetrical DI, which uses traditional SVPWM, produce a remarkably high common-mode voltage (CMV). The motor bearings are affected, and EMI problems occurs due to the common-mode current. Hence, to overcome this problem and to control a three-level symmetrical DI fed Open End Winding Induction Motor (OEWIM), a novel PWM generation technique named scalar decoupled PWM topology is proposed in this paper. Two three-level inverters are connected to the open-end winding induction motor in this work and a carrier-based scalar technique with decoupled PWM is proposed where the modulating signal can be varied to obtain both continuous and discontinuous modes of operation. In this proposed topology, switching signals of the inverter 1 and 2 can be generated and controlled separately. To examine the efficiency of the proposed topology, its operation under both continuous and discontinuous modes of operation is carried out in simulation and experimental set up. From the acquired results, it is concluded that this proposed topology exhibits reduced CMV and harmonics when compared to traditional PWM topology.

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Section: Open-end Winding Induction Motor Drive (Oewimd)mentioning

confidence: 99%

A Scalar Decoupled PWM Technique for a Three-Level Symmetrical Dual Inverter Fed OEWIM Drive for Electric Vehicle

Venugopalan

Jegathesan

Reddy

2021

IJRER

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“…Table I shows that to accomplish the same number of voltage levels, inverters need an equal number of main switches and main diodes. As cascaded inverters do not require clamping diodes, they have the smallest component count [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Pulse Width Modulation Techniques for Diode-Clamped and Cascaded Multilevel Inverters

Gudipati,

Maramreddy,

Kolli

et al. 2023

Eng. Technol. Appl. Sci. Res.

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Multilevel inverter technology has become the most significant method of energy conversion from DC to AC for uninterrupted power supply. The quality of the power supply depends on the appearance of harmonics, which is considered a problem that needs to be overcome. This paper demonstrates the use of a new modulation technique to reduce the harmonics in both diode-clamped and cascaded multilevel inverters, examining its Total Harmonic Distortion (THD) compared to other PWM methods. Simulations were carried out in MATLAB/Simulink for five-level diode-clamped and cascaded multilevel inverters. The simulation results of both multilevel inverters using the sinusoidal PWM, modified reference PWM, modified carrier PWM, and modified reference and modified carrier PWM methods showed that the latter had the best THD performance for both inverter types, especially for the cascaded multilevel inverter.

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Comparison of Decoupled and Coupled PWM Techniques for Open-End Induction Motor Drives

Reddy

Deepak

Venkateswaralu

2020

Lecture Notes in Electrical Engineering

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Reduction of Common Mode Voltage in Asymmetrical Dual Inverter Configuration Using Discontinuous Modulating Signal Based PWM Technique

Cited by 8 publications

References 25 publications

A Scalar Decoupled PWM Technique for a Three-Level Symmetrical Dual Inverter Fed OEWIM Drive for Electric Vehicle

A Scalar Decoupled PWM Technique for a Three-Level Symmetrical Dual Inverter Fed OEWIM Drive for Electric Vehicle

Comparison of Pulse Width Modulation Techniques for Diode-Clamped and Cascaded Multilevel Inverters

Comparison of Decoupled and Coupled PWM Techniques for Open-End Induction Motor Drives

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