Reduced Voltage Stress and Spikes in Source Current of 7-Level Switched-Capacitor Based Multilevel Inverter

Islam, Shirazul; Siddique, Marif Daula; Hussan, Reyaz; Iqbal, Atif

doi:10.1109/access.2023.3297496

Cited by 13 publications

References 34 publications

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Seven‐level single‐source switched capacitor inverter with triple boosting capability and high reliability

Zaid,

Moonis,

Sarwar

et al. 2024

Circuit Theory & Apps

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SummaryA single‐source switched capacitor multilevel inverter (SCMLI) topology utilizing only 10 switches and 1 diode with the capability of generating seven output voltage levels and a triple voltage boosting factor is proposed in this paper. The converter has capacitors that are self‐balanced and do not require any additional circuitry. The multicarrier sinusoidal pulse width modulation (PWM) technique is used to generate various switching signals for the 10 switches. Moreover, the reliability analysis using the Markov model has been carried out to assess the lifespan of power electronic components used in the proposed converter. The converter's performance is analyzed when an open circuit fault occurs in one or multiple switches. Power loss and efficiency in the converter are calculated by PLECS software using thermal modeling. The efficiency of SCMLI was found to be 97.6% for a 300 W load. The inverter working is verified by building a 500 W prototype in the lab. The experimental results in steady‐state and dynamic conditions agree with the theoretical and simulation analysis.

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Seven‐level single‐source switched capacitor inverter with triple boosting capability and high reliability

Zaid,

Moonis,

Sarwar

et al. 2024

Circuit Theory & Apps

Self Cite

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A Novel Common‐Ground Switched‐Capacitor Type Dual‐Mode Five‐Level Transformer‐Less Multilevel Inverter

Khan,

Sarwar,

Zaid

et al. 2024

Circuit Theory & Apps

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This paper presents a novel single‐source common‐ground switched‐capacitor (CGSC) type dual‐mode five‐level (5L) transformer‐less (TL) multilevel inverter (MLI) topology with inherent boosting capability. The proposed topology comprises a single DC source, nine power switches, and two capacitors with self‐voltage balancing ability, reducing the inverter's size, cost, and complexity. The direct connection of the negative terminal of the source to the neutral point of the load eliminates the leakage current. The converter can operate in both buck and boost mode based on the series–parallel switching conversion of the involved switches. The circuit description, control strategy, and design guidelines are discussed in detail. The steady‐state and dynamic performance of the proposed circuit is validated using MATLAB Simulink software. Reliability analysis of the proposed converter is done in detail. Furthermore, the proposed converter is being compared with state‐of‐the‐art topologies.

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Comprehensive Review of Switched-Capacitor Multilevel Inverter

Omre,

Thakur,

Panda

2024

Lecture Notes in Electrical Engineering

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Reduced Voltage Stress and Spikes in Source Current of 7-Level Switched-Capacitor Based Multilevel Inverter

Cited by 13 publications

References 34 publications

Seven‐level single‐source switched capacitor inverter with triple boosting capability and high reliability

Seven‐level single‐source switched capacitor inverter with triple boosting capability and high reliability

A Novel Common‐Ground Switched‐Capacitor Type Dual‐Mode Five‐Level Transformer‐Less Multilevel Inverter

Comprehensive Review of Switched-Capacitor Multilevel Inverter

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