A Modified Multi Level Inverter With Inverted SPWM Control

Suresh, K.; Parimalasundar, E.

doi:10.1109/icjece.2022.3150367

Cited by 37 publications

(16 citation statements)

References 14 publications

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“…1,2 So, modern trending concepts are based on DC microgrids. 3,4 Step-up or step-down with transformer is possible in AC supply. Effective utilization and proper distribution of energy are required; some reports stated that DC transmission is better than AC transmission because of efficiency in many cases.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of dual‐leg generic converter for DC/AC grid integration

Suresh

Parimalasundar²

2023

Circuit Theory & Apps

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SummaryA newly designed generic photo‐voltaic (PV) DC‐DC/DC‐AC converter is for direct current (DC) grid or single‐phase alternating current (AC) grid integration. Main concept of the proposed converter is universal power conversion, and the same converter is used for DC‐DC/DC‐AC applications which also aiming for minimum redundancy because the proposed converter can be able to produce DC and AC output from the fixed/variable DC source. The proposed converter is designed with single‐stage dual leg topology, with a designed filter, and protection circuits are connected in output/grid side. The proposed circuit is compared with existing topologies, and comparative analyses are made in both chopper (DC‐DC) and inverter (DC‐AC) modes for universal or generic operation. Real‐time implementation of the proposed model is prepared for the power rating of 3.5 KW during inverter mode and 4 KW when same circuit working in chopper mode. Hardware results are obtained from the model from both chopper and inverter modes. Finally, correct applications, advantages, and future work are concluded in the last section.

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Section: Introductionmentioning

confidence: 99%

Design and implementation of dual‐leg generic converter for DC/AC grid integration

Suresh

Parimalasundar²

2023

Circuit Theory & Apps

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“…As a result, many adjustments will be required to reduce the size and cost of the inverter [7]. The authors of [8] investigated a number of recent articles on problems such as the creation of inverted pulse width modulation method in cascaded Hbridged MLI systems.…”

Section: Introduction Multilevel Inverter (Mli) Topology Hasmentioning

confidence: 99%

Performance investigation of modular multilevel inverter topologies for photovoltaic applications with minimal switches

Parimalasundar¹,

Kumar²,

Geetha³

et al. 2022

Electrical Engineering & Electromechanics

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Introduction. In recent years, a growing variety of technical applications have necessitated the employment of more powerful equipment. Power electronics and megawatt power levels are required in far too many medium voltage motor drives and utility applications. It is challenging to incorporate a medium voltage grid with only one power semiconductor that has been extensively modified. As a result, in high power and medium voltage settings, multiple power converter structure has been offered as a solution. A multilevel converter has high power ratings while also allowing for the utilization of renewable energy sources. Renewable energy sources such as photovoltaic, wind, and fuel cells may be readily connected to a multilevel inverter topology for enhanced outcomes. The novelty of the proposed work consists of a novel modular inverter structure for solar applications that uses fewer switches. Purpose. The proposed architecture is to decrease the number of switches and Total Harmonic Distortions. There is no need for passive filters, and the proposed design enhances power quality by creating distortion-free sinusoidal output voltage as the level count grows while also lowering power losses. Methods. The proposed topology is implemented with MATLAB / Simulink, using gating pulses and various pulse width modulation methodologies. Moreover, the proposed model also has been validated and compared to the hardware system. Results. Total harmonic distortion, number of power switches, output voltage and number of DC sources are compared with conventional topologies. Practical value. The proposed topology has been very supportive for implementing photovoltaic based multilevel inverter, which is connected to large demand in grid.

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“…Over-voltage, over-current, safety component failure, and improper gating signal are some of the causes of short circuit (SC) failure. Suresh K et al [7] investigated a number of recent articles on problems such as the creation of inverted pulse width modulation (PWM) method in CHB-MLI systems. Kiran Kumar G et al [8,9] has analyzed fault analysis in inverter and also faults an inverter device is used continuously under abnormal settings, further issues will arise, resulting in severe consequences.…”

Section: ░1 Introductionmentioning

confidence: 99%

Investigation analysis of open circuit and short circuit fault on cascaded H-bridged multilevel inverter using artificial neural network approach

Parimalasundar¹,

Jayakumar²,

Ravikumar

et al. 2022

IJEER

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Cascaded H-bridge multilevel inverters are becoming increasingly used in applications such as distribution systems, electrical traction systems, high voltage direct conversion systems, and many others. Despite the fact that multilevel inverters contain a large number of control switches, detecting a malfunction takes a significant amount of time. In the fault switch configurations diode included for freewheeling operation during open-fault condition. During short circuit fault conditions are carried out by the fuse, which can reveal the freewheeling current direction. The fault category can be identified independently and also failure of power switches harmed by the functioning and reliability of cascaded H-bridge multilevel inverters. This paper investigates the effects and performance of open and short switching faults of multilevel inverters. Output voltage characteristics of five level MLI are frequently determined from distinctive switch faults with modulation index value of 0.85 is used during simulation analysis. In the simulation study, with the modulation index value of 0.85, one second open and short circuit faults are generated for the location of the defective switch. Fault is identified automatically by means of artificial neural network technique using sinusoidal pulse width modulation based on distorted total harmonic distortion and managed by its own. The proposed topology is to be design and evaluate using MATLAB/Simulink platform.

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A Modified Multi Level Inverter With Inverted SPWM Control

Cited by 37 publications

References 14 publications

Design and implementation of dual‐leg generic converter for DC/AC grid integration

Design and implementation of dual‐leg generic converter for DC/AC grid integration

Performance investigation of modular multilevel inverter topologies for photovoltaic applications with minimal switches

Investigation analysis of open circuit and short circuit fault on cascaded H-bridged multilevel inverter using artificial neural network approach

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