A multilevel inverter using switched capacitors with reduced components

Taheri, Asghar; Rasulkhani, Ahad; Ren, Hang

doi:10.1049/iet-pel.2020.0473

Cited by 7 publications

(3 citation statements)

References 31 publications

(117 reference statements)

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“…The on‐state resistances and the forward voltage drop across the devices in the load current path are the main causes of conduction loss [32–36]. Maximum load current flows at maximum levels, resulting in high voltage stress across the switches and maximum conduction loss.…”

Section: Power Loss Analysismentioning

confidence: 99%

“…Also, N on and N off are low for the proposed topology as S 9 and S 10 are either switched off or on in a complete half cycle, and other switches (S 5 , S 6 , S 7 , S 8 ) also have less number of switching, resulting in reduced switching loss. The on-state resistances and the forward voltage drop across the devices in the load current path are the main causes of conduction loss [32][33][34][35][36]. Maximum load current flows at maximum levels, resulting in high voltage stress across the switches and maximum conduction loss.…”

Section: Power Loss Analysismentioning

confidence: 99%

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A single‐source switched‐capacitor based 13‐level sextuple boost inverter with reduced component count and low THD

Hussan

Sarwar

Tayyab

et al. 2023

IET Generation Trans & Dist

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A switched-capacitor-based 13-level inverter with a lesser number of components is presented in this article. The 13-level single-phase AC output voltage is achieved with a voltage gain of 6 by including a single DC source, 11 switches, 4 capacitors, and 3 diodes in the proposed converter. The self-voltage balancing is achieved for various types of load without the need for complex control schemes and auxiliary circuits. The proposed topology does not require a back-end H-bridge to generate negative polarity. This leads to a reduction in voltage stresses across the switches. Thus, total standing voltage (TSV) and the overall cost of the proposed topology are reduced as compared to the state-of-the-art topologies reported in the literature. Furthermore, an Improved Nearest Level Modulation (INLM) scheme is used to improve the power quality of the output voltage. Using the proposed scheme, the Total Harmonic Distortion (THD) of the output voltage is reduced to 5.08%. The power loss analysis for various elements of the proposed converter is also included. A comparison with recent topologies in reference to various performance parameters is carried out. In addition to the simulation study, a laboratory prototype is prepared to validate the efficacy of the proposed converter.

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Section: Power Loss Analysismentioning

confidence: 99%

Section: Power Loss Analysismentioning

confidence: 99%

A single‐source switched‐capacitor based 13‐level sextuple boost inverter with reduced component count and low THD

Hussan

Sarwar

Tayyab

et al. 2023

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…Fig. 27(a) shows another general circuit scheme for doubleport-based SC-MLIs, which has been widely used in many research articles, such as [45], [47], [49], [78], [162], and [163]. This general circuit architecture has been derived from [167] and [168] and is called novel/developed H-bridge, as well.…”

Section: B Multiple Dc-source Sc-mlismentioning

confidence: 99%

Switched-Capacitor Multilevel Inverters: A Comprehensive Review

Barzegarkhoo

Forouzesh

Lee

et al. 2022

IEEE Trans. Power Electron.

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Multilevel inverters (MLIs) with switched-capacitor (SC) units have been a widely rehearsed research topic in power electronics since the last decade. Inductorless/transformerless operation with voltage-boosting feature and inherent capacitor self-voltage balancing performance with a reduced electromagnetic interference make the SC-MLI an attractive converter over the other available counterparts for various applications. There have been many developed SC-MLI structures recently put forward, where different basic switching techniques are used to generate multiple (discrete) output voltage levels. In general, the priority of the topological development is motivated by the number of output voltage levels, overall voltage gain, and full dc-link voltage utilization, while reducing the component counts and stress on devices for better efficiency and power density. To facilitate the direction of future research in SC-MLIs, this article presents a comprehensive review, critical analysis, and categorization of the existing topologies. Common fundamental units are generalized and summarized with their merits and demerits. Ultimately, major challenges and research directions are outlined leading to the future technology roadmap for more practical applications.

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Switched Capacitor Circuits

Karim¹,

Brunette²

2023

Encyclopedia of Materials: Electronics

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A multilevel inverter using switched capacitors with reduced components

Cited by 7 publications

References 31 publications

A single‐source switched‐capacitor based 13‐level sextuple boost inverter with reduced component count and low THD

A single‐source switched‐capacitor based 13‐level sextuple boost inverter with reduced component count and low THD

Switched-Capacitor Multilevel Inverters: A Comprehensive Review

Switched Capacitor Circuits

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