Design of a new combined cascaded multilevel inverter based on developed H-bridge with reduced number of IGBTs and DC voltage sources

Aalami, Mohammadamin; Babaei, Ebrahim; Sabahi, Mehran

doi:10.1109/cpe.2018.8372571

Cited by 22 publications

(12 citation statements)

References 13 publications

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“…To illustrate the advantages and disadvantages of the proposed multilevel inverter, the comparison is performed among the proposed cascaded topology with similar cascaded multilevel inverter topologies in terms of the number of power switch, IGBTs, DC power sources and the values of T SV to validate the new capabilities of the proposed topology in competition with other topologies. In this comparison, the all cascaded topologies are correspond the presented topologies in [11]- [16]. All cascaded multilevel inverters have been presented using developed H-bridge inverter and the number of left and right DC power sources are equal in all topologies.…”

Section: Comparison the Proposed Cascaded MLI With Presented Casmentioning

confidence: 99%

“…4(c) shows the required number of independent DC power sources to generate different levels at the output of inverters. With respect to this figure, the presented topology in [14] and new proposed topology are competing to each other, and then the presented topologies in [13], [16] have less number of independent DC power sources. Fig.…”

Section: Comparison the Proposed Cascaded MLI With Presented Casmentioning

confidence: 99%

“…One of these topologies is the developed H-bridge inverter that has been extended in the different design. The presented topologies in [14], [16] has been designed based on developed H-bridge inverter. But the number of used switches in each of these topologies is different.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the number of output voltages levels and the maximum output voltage are different. According to the comparison of the first presented topology [14] with the redesigned topologies from this topology, the newly presented topologies generated a large number of voltage levels with a lower number of switching devices and the maximum blocking voltage [15], [16].…”

Section: Introductionmentioning

confidence: 99%

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Modified H-Bridge Inverter with Reduced Number of Switching Devices

Hosseinzadeh

Hadiizadeh

Sarbanzadeh

et al. 2019

2019 IEEE International Conference on Industrial Technology (ICIT)

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In this paper, a modified topology for developing H-bridge inverter is proposed which the number of components is lower than other inverters as well as the proposed inverter generates a high number of level with low total harmonics distortions. In the first, the new developed h-bridge inverter is proposed and then a cascaded connection of this inverter to increase the number of levels is presented. Three different methods are proposed to determine the DC power sources magnitudes and among them, the best algorithm is chosen for comparison the proposed cascaded inverter with other cascaded inverters. Finally, the proposed cascaded inverter consist of two proposed basic inverters to generate thirty-three voltage levels is simulated to evaluate the performance of the proposal.Index Terms-developed H-bridge inverter; cascaded inverter; reduced components.

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Section: Comparison the Proposed Cascaded MLI With Presented Casmentioning

confidence: 99%

Section: Comparison the Proposed Cascaded MLI With Presented Casmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modified H-Bridge Inverter with Reduced Number of Switching Devices

Hosseinzadeh

Hadiizadeh

Sarbanzadeh

et al. 2019

2019 IEEE International Conference on Industrial Technology (ICIT)

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“…However, the number of switches required is slightly higher since a bidirectional switch is required per basic unit. In [13], the basic unit as appeared in MLDCL inverter is combined with the packed H-bridge. The topology is able to synthesise a lot of source configurations.…”

Section: Introductionmentioning

confidence: 99%

Multilevel inverter with improved basic unit structure for symmetric and asymmetric source configuration

Hamidi

Ishak

Zainuri

et al. 2020

IET Power Electronics

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An improved multilevel inverter (MLI) topology using a new basic unit structure with a reduced number of components is proposed in this study. Its single compact module is made up of two basic units connected to the left and right sides of a packed H-bridge. The topology produces 9-Level output when operated symmetrically and 17-Level output when operated asymmetrically. Identical magnitude of DC sources is used for the symmetrical operation, while non-identical magnitudes in a trinary sequence are used for the asymmetrical operation. The low-frequency modulation scheme is applied for the switching control where the switching angles are pre-calculated. The mathematical formulations for the switching are also considered to reduce the total harmonic distortion (THD) at the output. The proposed topology is also found to be superior in terms of the required number of switches per output level and total blocking voltage compared to conventional and recently reported MLIs. With these merits, real-time installation of the proposed topology will potentially require lesser space and become cheaper. The feasibility of the proposed topology is validated for its 9-Level and 17-Level operations through experimental verification on output characteristics, THD, blocking voltage, power-sharing and efficiency.

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Cascaded multilevel inverter based on ladder bridges: Analysis, optimization, and implementation

Aalami

Hadiizadeh

Babaei

2021

Circuit Theory & Apps

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This paper proposes a new ladder-switch based cascaded multilevel inverter that requires a lower number of insulated gate bipolar transistors (IGBTs) and direct current (DC) voltage sources to generate a specified range of voltage levels. Regarding this topology, it consists of λ stages, where each stage comprises k legs, besides each leg composed of n cells. So, the proposed topology can be optimized to obtain the lower requirement for IGBTs and DC voltage sources. It is required to mention that this topology generates both negative and positive voltage levels inherently. Two different algorithms are presented to synthesize all odd and even voltage levels. After, regarding each of the algorithms, the proposed topology is optimized from different aspects of the lowest number of IGBTs or the lowest number of DC voltage sources, and results are depicted. A comparison assessment is performed to find the advantages and possible disadvantages of the proposed topology. In the end, a 23-level prototype of the proposed topology is used to validate the correct performance of the proposed topology using the experimental results.

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Design of a new combined cascaded multilevel inverter based on developed H-bridge with reduced number of IGBTs and DC voltage sources

Cited by 22 publications

References 13 publications

Modified H-Bridge Inverter with Reduced Number of Switching Devices

Modified H-Bridge Inverter with Reduced Number of Switching Devices

Multilevel inverter with improved basic unit structure for symmetric and asymmetric source configuration

Cascaded multilevel inverter based on ladder bridges: Analysis, optimization, and implementation

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