An Innovative Dual-Boost Nine-Level Inverter with Low-Voltage Rating Switches

Saeedian, Meysam; Pouresmaeil, Edris; Samadaei, Emad; Rodrigues, Eduardo M. G.; Godina, Radu; Marzband, Mousa

doi:10.3390/en12020207

Cited by 17 publications

(13 citation statements)

References 25 publications

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“…It can be noted that the complexity in the implementation of the proposed circuit is less because of a lower component count compared with conventional and other recent topologies in previous studies. 12,15,22,23 Moreover, for the same number of output voltage levels, the number of V dc -rated switches required in the proposed topology are less by 62.5% and 25% compared with Gautam et al 14 and Sandeep and Udaykumar, 16 respectively. The FC voltage ripple is more in Sandeep and Udaykumar and Vahedi et al 17,24 because of the reduced number of redundant switching states.…”

Section: Advantages and Comparison Of The Proposed Topologymentioning

confidence: 87%

“…Table gives a detailed comparison of the number of switches, clamping diodes, flying capacitors, and DC sources required with respect to (w.r.t) the recently proposed and the conventional topologies. It can be noted that the complexity in the implementation of the proposed circuit is less because of a lower component count compared with conventional and other recent topologies in previous studies . Moreover, for the same number of output voltage levels, the number of V dc ‐rated switches required in the proposed topology are less by 62.5% and 25% compared with Gautam et al and Sandeep and Udaykumar, respectively.…”

Section: Advantages and Comparison Of The Proposed Topologymentioning

confidence: 99%

“…An improvised 9‐L inverter structure is proposed in Wang et al to make use of the full DC‐link voltage and to increase the redundant switching states for the FC voltage balancing. An innovative 9‐L dual boost inverter is proposed in Saeedian et al using switched capacitors and a single DC voltage source, which avoids the need of H‐bridge for polarity generation. A modified packed U‐cell (PUC) is proposed in Vahedi et al with a single FC to produce the 9‐L output.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new hybrid flying capacitor–based single‐phase nine‐level inverter

Tirupathi

Kirubakaran

Tirumala

2019

Int Trans Electr Energ Syst

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Multilevel inverters (MLIs) with reduced part count are becoming popular in the arena of medium voltage and medium power applications. This proposed topology owns the advantages of reduced number and voltage stress across the switching devices and higher efficiency. It also combines the method of utilizing full DC‐link voltage to improve the RMS output voltage. The proposed hybrid topology is constructed using three different sections consisting of a cascaded two two‐level inverter, H‐bridge with a flying capacitor, and single‐leg low‐frequency circuit. The complete modes of operation to generate 9‐level A. C voltage at the inverter output including the FC voltage balancing has been comprehensively presented. A comparison is constructed with the proposed and recent topologies in the literature to show the merits of the proposed configuration. The proposed topology is tested in MATLAB/SIMULINK environment and a scale‐down prototype has been developed in the laboratory. The feasibility of the proposed topology is verified through simulation and experimental results.

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Section: Advantages and Comparison Of The Proposed Topologymentioning

confidence: 87%

Section: Advantages and Comparison Of The Proposed Topologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new hybrid flying capacitor–based single‐phase nine‐level inverter

Tirupathi

Kirubakaran

Tirumala

2019

Int Trans Electr Energ Syst

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“…The topology presented in [33] has the least DC supply, and the proposed topology is very close to it in this respect. The proposed structure requires fewer DC sources than the structures presented in [4], [11], [24], [32], and [34]. Fig.…”

Section: Comparison Of the Proposed MLI With Other Structuresmentioning

confidence: 97%

A Cross Connected Asymmetrical Switched-Capacitor Multilevel Inverter

et al. 2021

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A Switched-Capacitor Multilevel Inverter (SCMLI) topology is proposed here, which can generate up to fifteen levels with one unit and can be extended further for getting higher levels. The proposed SCMLI has a lesser number of switching devices with respect to other recently proposed structures presented in this paper. It also has the capacitor self-balancing property. Power loss analysis has also been done using PLECS software. Maximum efficiency of 96.33 % has been achieved. A generalized comparative study has also been carried out with the newly presented topologies in different research articles considering several parameters. In order to validate the structure presented in this paper, simulation is done in Matlab ® 2018a, and the simulation results obtained are verified using an experimental prototype.INDEX TERMS level-shifted PWM, switched-capacitor MLI, total harmonic distortion, multilevel inverter, self-voltage balancing

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“…Recent works in nine-level inverter circuits require more number of devices and the implementation cost is higher than the investigated inverter circuit. Furthermore, the automatic capacitor balancing property raises the interest in circuit [37]. In Figure 1, the investigated dual boost nine-level topology is presented.…”

Section: Db9li Operation and Assessmentmentioning

confidence: 99%

Experimental Validation of Metaheuristic and Conventional Modulation, and Hysteresis Control of the Dual Boost Nine-Level Inverter

et al. 2021

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In this article, various modulation strategies and hysteresis-band control of a recently introduced dual-boost nine-level inverter (DB9LI) are implemented. DB9LI is a switched capacitor based inverter capable of generating symmetrical nine output voltage levels by employing a single DC source. The topology generates a boosted bipolar voltage at the output side without applying end-side H-bridge (usually employed to generate negative levels), which contrasts with some of the switched-capacitor topologies. The capacitors employed have an inherent self-balancing feature. Additionally, due to lower individual and total standing voltages, switches of low voltage ratings are required. As a result, the cost of switches and the inverter reduces considerably. Metaheuristic-based selective harmonic elimination and mitigation (SHE and SHM) and various sine-triangular pulse width modulation techniques are implemented and compared on various parameters. Finally, a robust eight-band hysteresis control is designed and implemented, which helps to obtain sinusoidal load current with a unity power factor. The modulation strategies and the hysteresis control are validated on the MATLAB simulation environment and an experimental prototype.

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An Innovative Dual-Boost Nine-Level Inverter with Low-Voltage Rating Switches

Cited by 17 publications

References 25 publications

A new hybrid flying capacitor–based single‐phase nine‐level inverter

A new hybrid flying capacitor–based single‐phase nine‐level inverter

A Cross Connected Asymmetrical Switched-Capacitor Multilevel Inverter

Experimental Validation of Metaheuristic and Conventional Modulation, and Hysteresis Control of the Dual Boost Nine-Level Inverter

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