An Effective Non-Square Matrix Converter Based Approach for Active Power Control of Multiple DGs in Microgrids: Experimental Implementation

Sadooghi, Ramin; Niknam, Taher; Sheikh, Morteza; Askarpour, Mohammad; Roustaei, Mahmoud; chabok, Alireza; Aghaei, Jamshid

doi:10.1109/tec.2021.3116310

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…1, conventional back-to-back converters can easily be extended to a multi-port converter by connecting multiple voltage source converter through their common DC link. However, except for a few cases [14][15][16][17][18][19][20][21][22], most of the matrix and HFAC converters proposed in the literature are two-port converters which can be used to connect a single DG or storage to an AC or DC grid. In this Section, a generalized structure of a multi-port indirect matrix converter is proposed which can be used to connect several AC or DC resources to an AC or DC grid or load in a hybrid system.…”

Section: Voltage and Current Gainsmentioning

confidence: 99%

“…Due to the lack of an intermediate energy storage component, it is difficult to extend this two-port matrix converter to a multi-port one, and except for a few special and non-expandable three-port cases [14][15][16][17][18][19][20][21][22], most of the matrix converters proposed in the literature are two-port converters used to connect a single resource or load to an AC or DC grid. Therefore, to connect several resources or loads the grid, unlike extendable multi-stage back-to-back converters, several matrix converters are required which increases the system complexity and cost.…”

Section: Introductionmentioning

confidence: 99%

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Multi–Port High–Frequency AC–Link and Indirect Matrix Converters: A Generalized Structure

Hojabri

2023

Scientia Iranica

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Conventional multi-stage AC/DC/DC, AC/DC/AC, DC/DC/DC, and DC/DC/AC converters are two ports converters used to connect a resource or load to an AC or DC grid. To connect several loads or resources to a grid, these converters can easily be extended to a multiport converter through a common DC-link, with simplified control and a reduced number of active switches. However, DC-link huge energy storage component increases the converter volume and cost and reduces its lifetime and reliability. On the other hand, most of the resources with these types of converters have fault ride-through problems and the DC-link voltage increases during the grid-side faults. The indirect matrix converter is a two-port high-frequency AC-link (HFAC) converter without any intermediate energy storage component, which can be used to connect just a single source or load to a grid. In this paper, a generalized extension of a two-port indirect matrix converter (and the other HFAC converters) to a multi-port converter is proposed. The modulation method, voltage and current gains, and the reactive power limitation of the proposed structure are also presented. Performances of the proposed structure and its modulation strategy are verified through simulation in MATLAB/SIMULINK environment.

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