article
For grid-connected converters, standards require low grid current harmonic distortion, controlled injected grid power and high efficiency. Such targets can be obtained via the design of an appropriate control strategy. This paper proposes a super twisting sliding mode control (ST-SMC) for the three-phase grid-connected converter. On the contrary to using the proportional integral (PI) controller for the de-link voltage regulation, which presents poor regulation performances under parameters variations and external disturbances, the proposed (ST-SMC) de-link voltage control approach presents good disturbance rejection capability and dynamic performance. To evaluate the effectiveness of the proposed control technique, extensive simulation tests are carried out using the software MATLAB/Simulink.
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DOI: 10.1109/irec59750.2023.10389268
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