An Efficiency Analysis of 27 Level Single-Phase Asymmetric Inverter without Regeneration

Espinosa, Eduardo; Melín, Pedro; Baier, Carlos R.; Garcés, Hugo O.

doi:10.3390/en14051459

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…Semiconductor losses were considered and divided into switching and conduction losses for the efficiency analysis study. The semiconductors are nonlinear elements; therefore, we work with linear approximations obtained from the characteristic curves of the on and off processes and the diode dynamics, as in [15][16][17]. The…”

Section: B Efficiency Analysismentioning

confidence: 99%

Alternative Feedback Quantizer Using Space Vector Modulation

Veillón

Espinosa

Lizana

et al. 2023

2023 IEEE International Conference on Industrial Technology (ICIT)

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Feedback Quantizer is a closed-loop modulation scheme with low harmonic content at low frequency and good tracking of the voltage reference at the fundamental frequency. In electrical systems where power converters and transformers interact, the modulation technique must be capable of not generating low-frequency harmonic components in order to avoid transformer saturation. This paper presents an alternative for applying FBQ using Space Vector Modulation to obtain higher accuracy in tracking the reference and improve the harmonic content of this technique at low sampling times. The simulated results show the fulfillment of the objectives satisfactorily.

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Section: B Efficiency Analysismentioning

confidence: 99%

Alternative Feedback Quantizer Using Space Vector Modulation

Veillón

Espinosa

Lizana

et al. 2023

2023 IEEE International Conference on Industrial Technology (ICIT)

Self Cite

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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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