Hybrid Switched-Capacitor 9-Level Boost Inverter

Hosseini, Seyed Ali; Varesi, Kazem

doi:10.1109/pedstc52094.2021.9405886

Cited by 12 publications

(15 citation statements)

References 14 publications

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“…As the proposed inverter structure owns the qualities of voltage boosting and obtaining waveform with a higher number of levels in output (15) with a lower number of devices, the proposed 15-level inverter finds appropriate applications with renewable sources. Figure 11 illustrates the proposed 15-level inverter in conjunction with a solar PV as the source.…”

Section: Application Of the Proposed Basic Modulementioning

confidence: 99%

“…It uses five capacitors with five diodes and 10 switches for 17 levels with a voltage gain of 8. Another nine‐level hybrid topology has been proposed in Hosseini and Varesi [ 15 ] in which two capacitors of different voltage rating have been used for a quadruple voltage gain.…”

Section: Introductionmentioning

confidence: 99%

“…It uses five capacitors with five diodes and 10 switches for 17 levels with a voltage gain of 8. Another nine-level hybrid topology has been proposed in Hosseini and Varesi [15] in which two capacitors of different voltage rating have been used for a quadruple voltage gain. Some other single-input topologies have been suggested in literature [16][17][18][19][20] ; however, for voltage of higher levels, the device count increases which makes the complete system expensive.…”

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confidence: 99%

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A new high‐level boost inverter topology with reduced device count

Siddique

Reddy

Meraj

et al. 2022

Circuit Theory & Apps

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The requirement of a boosting aspect for the power electronic converter is essential for the fuel cell, solar PV, and battery‐based applications as the generated voltage is of low voltage magnitude. In these low‐voltage applications, a new boost inverter topology has been suggested, where the power conversion will happen in a single‐stage instead of two‐stage (dc–dc converter + two‐level inverter). The proposed topology consists of 11 power semiconductor devices, one switched capacitor unit, and two dc voltage sources that are arranged in the magnitude of 1:3. This arrangement is able to achieve an output voltage of 15 levels with a boosting factor of 1.75. The other advantages of the designed topology have been the reduced device count with the self‐balancing of capacitor voltage and improved efficiency with better power loss sharing among the switches. By accumulating additional switched‐capacitor units to the proposed basic structure, the proposed inverter can be extended to support a greater number of levels and a higher voltage gain. A comprehensive assessment has been accomplished with single‐source and dual‐source topologies, and the proposed topology shows the improved design. A low‐power laboratory porotype has been used to endorse the proposed topology with real‐time conditions.

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Section: Application Of the Proposed Basic Modulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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A new high‐level boost inverter topology with reduced device count

Siddique

Reddy

Meraj

et al. 2022

Circuit Theory & Apps

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“…The utilization of Switched-Capacitor Cells (SCCs) in MLIs can provide a higher number of levels without the need to increase DC sources. This critical feature improves output voltage quality and simultaneously keeps the converter as compact/cheap as possible [12], [13]. From viewpoint of voltage boosting ability, the Switched-Capacitor Multi-Level Inverters (SCMLIs) are classified into boost (step-up), stepdown or unity-gain categories.…”

Section: Introductionmentioning

confidence: 99%

Single-Input Quadruple-Boosting Switched-Capacitor Nine-Level Inverter With Self-Balanced Capacitors

et al. 2022

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This paper suggests a single-input switched-capacitor Nine-level inverter configuration advantaging from quadruple voltage-boosting ability, natural voltage balancing of capacitors, and reduced components per level. Also, the single-source character of the proposed topology makes it cheaper and more compact. The cascaded version of the suggested topology has also been introduced, by which high boosting factors, as well as large number of steps, can be obtained. The proposed topology can effectively supply the resistive-inductive or pure inductive load types. The capacitors' impulsive-charging-current issue has been solved by simple small-inductance-based inductor-diode (L-D) networks. The comparative analysis affirms the fewer device-usage in suggested configuration per equal gain or level count than existed structures, resulting in less size and cost. The usage of Nearest-Level modulation guarantees the lowfrequency operation of semiconductors and reduces the switching losses. The comparative analysis and experimental outcomes affirm the competitiveness and accurate functionality of suggested configuration.INDEX TERMS Multilevel inverter, number of levels, self-balanced capacitors, switched-capacitor, voltage gain.

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“…Apart from reduction of cost and increasing efficiency, design an MLI with equal rating of switches for ease of maintenance in the industry. Many modified SDCSMLIs are presented in the literature [4][5][6] to reduce the component count, TSV PU , TCS, MBV, and increased voltage boosting capability. However, most of the topologies are trade off among these parameters.…”

Section: Introductionmentioning

confidence: 99%

Seven‐level triple boost self‐balanced switched‐capacitor inverter

Yarlagadda

Verma

2022

Circuit Theory & Apps

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Switched‐capacitor multi‐level inverters (SCMLIs) have become more popular in recent years due to their unique advantage of voltage boosting capability. A seven‐level triple boost SCMLI is proposed in this paper. The proposed topology consists of 10 switches, one diode, three self‐balanced capacitors, and a DC source. The voltage stress on each switch is less than or equal to twice the input DC source voltage. Further, 4 out of 10 switches are switched at the fundamental frequency. The maximum conducting switches at each level is less than or equal to 4. The capacitors are self‐balanced without using any voltage sensors or external circuits. A detailed comparison has been given with the existing seven‐level triple boost SCMLI to show the superiority of the proposed topology. The seven‐level triple boost SCMLI is simulated using MATLAB/SIMULINK tool. The proposed model is verified at low‐ and high‐frequency switching, sudden changes in output load, and different modulation index values. The results are verified experimentally with the help of a prototype model developed in the laboratory using dSPACE 1104.

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Hybrid Switched-Capacitor 9-Level Boost Inverter

Cited by 12 publications

References 14 publications

A new high‐level boost inverter topology with reduced device count

A new high‐level boost inverter topology with reduced device count

Single-Input Quadruple-Boosting Switched-Capacitor Nine-Level Inverter With Self-Balanced Capacitors

Seven‐level triple boost self‐balanced switched‐capacitor inverter

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