Boosting Nine-Level Operation of Seven-Level Hybrid-Clamped (7L-HC) Converter

Article Engineering, Electrical & Electronic

Analytical Modelling and Optimization of Output Voltage Harmonic Spectra of Full-Bridge Modular Multilevel Converters in Boost Mode

Sumeet Singh Thakur et al.

Summary: This article presents a new closed-form analytical solution for analyzing the operation of a full-bridge modular multilevel converter in boost mode. The effects of modulation index, number of submodules, and upper/lower arm carrier phase shift angle on the output voltage harmonics are investigated.

IEEE TRANSACTIONS ON POWER ELECTRONICS (2022)

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Article Automation & Control Systems

Commutation Scheme of Seven-Level Hybrid-Clamped Converters With Suppressed Deadband-Induced Voltage Spikes

Hao Tian et al.

Summary: The article investigates the mechanism of unexpected output voltage in hybrid-clamped converters during deadtime, and proposes a commutation scheme to coordinate the turn-on/off sequence of switches. This method, based on bitwise switching vector operation, does not increase the number of switching actions and is validated through simulation and experimental results.

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2021)

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Review Engineering, Electrical & Electronic

A Review of Multilevel Converters With Parallel Connectivity

Jingyang Fang et al.

Summary: The study on parallel connectivity of multilevel converters highlights advantages such as sensorless voltage balancing, capacitance saving, current sharing, and system efficiency optimization. Various submodules, macrolevel circuit topologies, implementation challenges and solutions, as well as control and optimization schemes are covered in the article.

IEEE TRANSACTIONS ON POWER ELECTRONICS (2021)

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Article Engineering, Electrical & Electronic

Flux-Weakening Control of Dual Three-Phase PMSM Based on Vector Space Decomposition Control

Yashan Hu et al.

Summary: This article introduces a flux-weakening control for dual three-phase permanent magnet synchronous machine based on vector space decomposition, which effectively reduces current imbalance and harmonic currents.

IEEE TRANSACTIONS ON POWER ELECTRONICS (2021)

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Article Engineering, Multidisciplinary