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This paper employs second-order sliding mode control (SOSMC) to carry out the current tracking and voltage regulation tasks of a grid-connected three-phase two-level power converter. For dc-link voltage regulation, a disturbance observer is adopted to improve the whole control performance. In this paper, four different types of disturbance observers are proposed for comparison, which are conventional...
This paper proposes an extended state observer (ESO) based second-order sliding-mode (SOSM) control for three-phase two-level grid-connected power converters. The proposed control technique forces the input currents to track the desired values, which can indirectly regulate the output voltage while achieving a user-defined power factor. The presented approach has two control loops. A current control...
This paper proposes an Extended State Observer (ESO) based predictive direct power control strategy for three-phase two-level grid connected power converters. The proposed control is in cascade structure which consists of two control loops, instantaneous power tracking loop (inner loop) and voltage regulation loop (outer loop). A proportional integral (PI) controller integrated with an ESO is designed...
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