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Implementing Two Dimensions Decentralized Carrier Phase Shift Method for Multicell Serial-Parallel Inverters
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DOI：10.1109/OJPEL.2025.3529520.png)
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摘要
En 中文
With regard to the research and application of power converters, scientists have focused onfinding structures and researching control solutions for multilevel multiphase power converters (MMC).Connecting cells in series, parallel (2 Dimension-2D) to the MMC allows easy adjustment of the power andoutput voltage. The design of MMCs must ensure that the switching voltage is less than the switching voltagelimit of the insulated gate bipolar transistor (IGBT), and that the 2D structure can easily adjust the voltageat each level by adding or removing several cells in series. A 2D structure can be designed for a wide powerrange, which can be quickly achieved by adjusting the number of cells (or multicell branches) in parallel.Currently, the use of 2D structures has only a few published studies on the aspect of DC/DC modulation. Thisstudy implements a decentralized carrier phase angle shift algorithm for multicell power converters coupledin series and parallel to supply single-phase alternating current (AC) loads. This paper proposes and verifiesan algorithm to ensure that the carrier phase angles of cells in the 2D structure are evenly alternating, therebyimproving the algorithm to balance the alternating current between parallel branches connecting the load.Reviews, analyses, and assessments were verified on a 2D structure simulation model including six parallelbranches, each of which has six cells in Matlab/Simulink software, and verified by an experimental modelincluding four branches, each of which has four cells using digital signal processing (DSP) TMS320F28379Das the controller.
Keyword:
Multicellular power converter
multilevel/multiphase power converter
decentralized control
phase shifted pulse width modulation
self-aligned carrier
interleaved carrier
dynamic reconfiguration
multicell serial-parallel converters
Multicellular power converter
multilevel/multiphase power converter
decentralized control
phase shifted pulse width modulation
self-aligned carrier
interleaved carrier
dynamic reconfiguration
multicell serial-parallel converters
期刊
I
IF:
3.9
论文数:
655
被引数:
1.2K
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