The increasing harmonic effects of SSPWM multilevel inverter controlling load currents investigated on modulation index

doi:10.17559/tv-20151020134629

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…However there are singularities at certain frequencies as shown in the bode plot. This issue can be resolved in the closed loop control scheme typically using a Sliding Mode Controller [27][28][29][30].…”

Section: Transfer Function Using Matlab Simulinkmentioning

confidence: 99%

A Modified Three Leg Watkins Johnson Bridge Type DC to DC Converter Simulation and Experimental Verification

V.*¹,

Ravi²,

Balasubramonian

2022

Teh. vjesn.

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In this work, a novel, high boost, DC-to-DC converter topology is proposed and validated. The proposed topology is an extension of the existing two leg bridge type Watkins Johnson DC to DC converter. In the proposed system, an additional leg is included along with an additional inductor and an additional capacitor. The inclusion of the third leg to the existing, two-leg version of Watkins Johnson DC-to-DC bridge type converter helps to boost further the voltage gain. This paper presents the proposed topology and a detailed analysis of the topology using the circuit model in the MATLAB SIMULINK simulation environment. An experimental prototype was also developed to validate the proposed idea. The results obtained from the simulations and the experimental prototype are also presented herein. The studies were carried out with open loop configuration.

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Section: Transfer Function Using Matlab Simulinkmentioning

confidence: 99%

A Modified Three Leg Watkins Johnson Bridge Type DC to DC Converter Simulation and Experimental Verification

V.*¹,

Ravi²,

Balasubramonian

2022

Teh. vjesn.

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“…Values of the RL load used in simulation study is R = 100 Ω and L = 100 mH. The switching frequency is 2 kHz [27][28][29]. Fig.…”

Section: Simulation and Experimental Investigationsmentioning

confidence: 99%

A Flexible Rung Ladder Structured Multilevel Inverter

Chandrasekaran

Mohanty²

2020

Teh. vjesn.

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The tenet of the multilevel inverter (MLI) is a peculiar kind in the voltage source inverter (VSI) family, which offers a prudent solution to prevailing issues of conventional two levels VSI, higher dv/dt and harmonic distortion, through a staircase/stepped output voltage from multiple separate dc sources (SDCs). The incessant research effort in the last four decades has bestowed a host of MLI topologies with different concepts, structures, component requirements and application appropriateness. The main issue with the MLI structures is the objectionable component count while upping the number of levels in the output staircase waveform. This paper suggests a new MLI structure, a flexible rung ladder structured multilevel inverter (FRLSMLI), with a savvy to operate both in symmetrical and asymmetrical modes involving only fewer component counts. The proposed FRLSMLI is basically a ladder structured bridge (H-bridge with additional rungs) and the rungs comprise either source inclusion-bypass cell (SIBC) or four level creator cell (FLCC). The FRLSMLI can synthesize fifteen levels with three SDCs. The simulation and experimental results are projected to validate the viability of proposed MLI in real time applications.

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“…Different from some studies in [16,17,18,19]; the current, torque, and voltage on the load can also be controlled with amplitudes in the time axis. So, the multi-level inverter structure used to drive alternating loads in some studies in [20,21,22] is used for the first time to drive dc motor in this study. At the same time, when this inverter structure is used, the proposed circuit will not have passive elements used by converters, insufficiencies such as insulation, high heating, and coil effect in driving loads that require high current will be eliminated.…”

Section: Introductionmentioning

confidence: 99%

Scheduling of Flow Shop Production Systems with Particle Swarm Optimization

Can

2021

Tecciencia

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DC motor control with switching methods is an interesting devise with many practical applications. A DC-DC buck-boost converter is one of the methods used to operate the DC motor. Although the-DC buck-boost converter for dc motor applications has been widely studied, they have some handicaps. In this study, the multi-level inverter structure that is different from the methods of DC motor driving is used to drive the DC motor. There will be no passive elements in the proposed circuit although the dc-dc converters have passive elements. So, while the inadequacies for the loads needing high current will be eliminated, the handicaps of the switching can be avoided. Current, torque, and voltage on the load will also be created by Pulse Width Amplitude Method (PWAM). As a different from other Pulse width modulation methods (PWM); the torque, current, and voltage of the motor can be controlled with PWAM in the horizontal and vertical axes. In the design stage; inverter switch structure and operation are given after the method of produced PWMs introduced. The equations of the voltages that will occur in the loads are created according to the working structure of the switches. DC motor structure is also given. In the simulation stage; Continuous and discontinuous modes of the proposed circuit are performed. Then torque of dc motor, armature current and speed are tested according to switching at different frequencies and different modulation indices.

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The increasing harmonic effects of SSPWM multilevel inverter controlling load currents investigated on modulation index

Cited by 10 publications

References 18 publications

A Modified Three Leg Watkins Johnson Bridge Type DC to DC Converter Simulation and Experimental Verification

A Modified Three Leg Watkins Johnson Bridge Type DC to DC Converter Simulation and Experimental Verification

A Flexible Rung Ladder Structured Multilevel Inverter

Scheduling of Flow Shop Production Systems with Particle Swarm Optimization

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