Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems

Vijayaraja, L.; Kumar, S. Ganesh; Rivera, Marco

doi:10.3390/en13246627

Cited by 6 publications

(4 citation statements)

References 27 publications

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“…Blocking voltage for the fundamental units of the inverter when the level shifter is placed at location 1 is presented in equations ( 5) and (6),…”

Section: A Generalized Ccsi Topology With Connecting Switchesmentioning

confidence: 99%

Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter

Rivera

et al. 2024

IEEE Latin Am. Trans.

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Multi-Level Inverter (MLI) structures with and without cross-connecting switches are constructed using bidirectional and uni-directional switches and their performances are verified via real-time experimentation. Initially a cross connecting switch inverter (CCSI) is constructed and then modified multilevel inverter (MMLI) is derived from it by removing the cross connecting switches. Two basic units are used in constructing the above converters. Further, the CCSI and MMLI configurations are studied with the identification of optimal placement of the level shifter circuit in the basic unit. In order to enhance the performance of the inverter, different types of procedures for the design of voltage sources are proposed. With the best method of defining the value of voltage sources among the proposed nine different algorithms and with optimal placement of level shifter in the MLI circuit, a 31-level CCSI, a 49 level and 71 level MMLI are designed and tested experimentally. Efficiency, total blocking voltage, harmonic presence, real and reactive powers are obtained for the proposed converters to study their performance. Finally, a comparative analysis is made for the proposed structure against the other MLIs in-terms of switch count, 'ON' state switches, voltage sources and efficiency. Link to graphical and video abstracts, and to code: https://latamt.ieeer9.org/index.php/transactions/article/view/8526

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“…Blocking voltage for the fundamental units of the inverter when the level shifter is placed at location 1 is presented in equations ( 5) and (6),…”

Section: A Generalized Ccsi Topology With Connecting Switchesmentioning

confidence: 99%

Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter

Rivera

et al. 2024

IEEE Latin Am. Trans.

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“…Using large number of switches, a symmetric MLI topology is designed and experimented in [52]. Also various topologies of MLI were designed using optimal number of switches [53][54][55][56][57].…”

Section: Issues In MLI With Low Device Countmentioning

confidence: 99%

Trends and Challenges in Multi-Level Inverter with Reduced Switches

et al. 2021

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Multilevel inverter had been paid a lot of attention from the academia and research community in recent times due to its role in high and medium power applications. In this paper, a detailed survey is made on the recently designed multilevel inverter to find the suitability of the inverters for particular applications. Research is performed on various types of multilevel inverters such as: Symmetric, asymmetric, hybrid and modularized multilevel inverter in order to identify the issues in generating more levels at the output. A summary of various issues in multilevel inverter with reduced switch count is provided, so that a novel topology of multilevel inverter can be designed in future. Further, an 81-level switched ladder multilevel inverter using unidirectional and bidirectional switches is designed. Simulation work is carried out using Matlab/Simulink in order to validate the performance of the inverter with change in resistive load and impedance load. The output of the 81-level inverter is fed to a 110 V, 186.5 W single phase induction motor in order to study the characteristics, further speed control of motor is performed by varying the input voltage of the motor and the results are presented.

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“…CHB-MLI is highly modular and relatively simpler to control in comparison with the other two topologies. Further, it does not require any voltage balancing circuits as it employs independent dc sources [5][6][7]. Nevertheless, in conventional CHB-MLI, the required number of power switches increases by four for any additional dc source.…”

Section: Introductionmentioning

confidence: 99%

A New Multilevel Inverter Topology with Reduced DC Sources

Rawa

Prem²,

Ali

et al. 2021

Energies

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The component count for the multilevel inverter has been a research topic for the last few decades. The higher number of power semiconductor devices and sources leads to a higher power loss with the complex control requirement. A new multilevel inverter topology employing the concept of half-Bridge modules is suggested in this paper. It requires a lower number of dc sources and power components. The inverter is controlled using a fundamental frequency switching scheme. With the basic unit being able to produce 13 level voltage waveforms with three dc voltage sources, higher-level inverter configuration has also been discussed in the paper. The performance of the topology is analyzed in the aspects of circuit parameters and found better when compared to similar topologies proposed in recent literature. The comparison provided in the paper set the benchmark of the proposed topology in terms of lower component requirements. The topology is also optimized with two voltage fixing algorithms for maximizing the number of levels for the given number of IGBTs, drivers and dc sources, and the observations are presented. The efficiency analysis gives the peak efficiency as 98.5%. The simulations were carried out using the PLECS software tool and validated using a prototype rated at 500 W. The results with several test conditions have been reported and discussed in the paper.

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Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems

Cited by 6 publications

References 27 publications

Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter

Performance Enhancement of Reduced Component Multilevel Inverter with Optimal Placement of Level Shifter

Trends and Challenges in Multi-Level Inverter with Reduced Switches

A New Multilevel Inverter Topology with Reduced DC Sources

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