A Hybrid Nine-Level Inverter With Reduced Components and Simplified Control

Jian-xin, Zhao; Chen, Yuanrui; Zeng, Jun; Liu, Junfeng

doi:10.1109/jestpe.2022.3152994

Cited by 28 publications

(14 citation statements)

References 36 publications

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“…As opposed to the hybrid SC-based MLIs presented in [146] and [147], this structure does not have any skipped output voltage level, which can further improve the inverter output waveform THD. [151], and (c) [152].…”

Section: E Hybrid Mlismentioning

confidence: 99%

“…Fig. 42(a)-(c) shows three different 9L hybrid inverters, which have been presented in [149], [151], and [152], respectively. As can be discerned from Fig.…”

Section: E Hybrid Mlismentioning

confidence: 99%

“…42(a), another similar 9L hybrid SC-based inverter with ten power switches and bidirectional power capability has also been introduced in [156]. The same concept has also been developed in [152]. In this case, SPSC Unit-I is used, as can be seen in Fig.…”

Section: E Hybrid Mlismentioning

confidence: 99%

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Switched-Capacitor Multilevel Inverters: A Comprehensive Review

Barzegarkhoo

Forouzesh

Lee

et al. 2022

IEEE Trans. Power Electron.

105

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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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Section: E Hybrid Mlismentioning

confidence: 99%

“…Fig. 42(a)-(c) shows three different 9L hybrid inverters, which have been presented in [149], [151], and [152], respectively. As can be discerned from Fig.…”

Section: E Hybrid Mlismentioning

confidence: 99%

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Switched-Capacitor Multilevel Inverters: A Comprehensive Review

Barzegarkhoo

Forouzesh

Lee

et al. 2022

IEEE Trans. Power Electron.

105

View full text Add to dashboard Cite

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“…However, power switches in the backend H-bridge have to withstand maximum output voltage, which significantly increases the voltage stress of the inverter. To reduce the voltage stress, SC inverters without H-bridges have been successively proposed in [11][12][13][14][15][16][17][18]. The topologies proposed in [11,12] are all seven-level SC inverters.…”

Section: Introductionmentioning

confidence: 99%

“…However, they employ a large number of power devices. There are also SC inverters generating nine output levels [13][14][15][16]. The hybrid inverters proposed in [13,14] feature reduced switched counts and simplified control strategies since they only use four pairs of complementary signal power switches.…”

Section: Introductionmentioning

confidence: 99%

A Switched Capacitor Inverter Structure with Hybrid Modulation Method Lowering Switching Loss

Zhao

Liang

et al. 2023

Energies

Self Cite

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The high-frequency modulation method (HFM) for a switched capacitor (SC) inverter often leads to high switching loss since it increases switching frequency. In order to reduce the switching frequency and switching loss in the HFM for SC inverter, this paper proposes a novel hybrid modulation strategy as well as a corresponding demo switched capacitor topology. The hybrid strategy limits the number of high-frequency switches, thus reducing the switching loss significantly. Meanwhile, the demo topology maintains the merits of current switched capacitor inverter such as low switch count, quadruple voltage-boosting ability and self-balancing capacity. The principle of the hybrid modulation method and the circuit configuration of the inverter are analyzed in detail. And comparisons are introduced to demonstrate the advantages of the proposed modulation method and topology. Finally, experimental results have proved the feasibility of the proposed inverter.

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