Grid Tied MMC-Based Photovoltaic System by using Triple Active Bridge Converter
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DOI:
https://doi.org/10.59287/ijanser.364Keywords:
Modular Multilevel Converter (MMC), Photovoltaic (PV), Circulating Current, Triple Active Bridge (TAB)Abstract
In the field of Multi-Terminal DC (MTDC) systems, Modular-Multilevel Converter (MMC) is a promising topology. The article analyzes the Grid-Connected Photovoltaic (PV) system by Triple Active Bridge (TAB) converter. No power mismatch occurs by connecting the TAB converter with the above arm and lower arm of MMC. This arrangement overcomes the problem of capacitor voltage profile by eliminating differential-mode component. A circulating-current controller is proposed to reduce the second-order harmonic capacitor voltage. In addition, the half-bridge circuit is being used in the TAB converter which reduces the overall components in the system, cost, and the volume of the system. The MATLAB/SIMULINK simulation shows the validity proposed topology.
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