Aimed at the issues of the fixed range of vector selection, fixed amplitude, and fixed direction in the conventional single and double vector model predictive control for grid-connected inverters, such as the large current pulsation and poor steady-state performance of the system, a three-vector model predictive control strategy is proposed.
The three-phase grid-connected converter is widely used in renewable and electric power system applications. Traditionally, control of the three-phase grid-connected converter is based on the standard decoupled d – q vector control mechanism.
Presented in this paper is a method of bidirectional real and reactive power control of a three-phase grid-connected inverter under unbalanced grid situations. Unbalanced three-phase load and unbalanced grid impedance are illustrations of unbalanced grid issues that have been investigated.
Traditionally, control of the three-phase grid-connected converter is based on the standard decoupled d – q vector control mechanism. Nevertheless, the study of this paper shows that there is a limitation in the conventional standard vector control method. Some of the limitations have also been found recently by other researchers.
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This paper provides a proportional-integral (PI) controller and direct-quadrature (DQ) frame transformation-based optimum control method for a three-phase grid-connected …
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Aiming at the topology of three phase grid-connected inverter, the principle of dq-axis current decoupling is deduced in detail based on state equation. The current loop …
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Different methods, including dq theory, power balance control theory and pq theory are mentioned in the literature for control of the grid converters. The dq axis theory is used …
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Presented in this paper is a method of bidirectional real and reactive power control of a three-phase grid-connected inverter under unbalanced grid situations. Unbalanced three …
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The three-phase grid-connected converter is widely used in renewable and electric power system applications. Traditionally, control of the three-phase grid-connected converter …
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An improved control strategy for the three-phase grid-connected inverter with space vector pulse-width modulation (SVPWM) is proposed. When the grid current contains …
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This research introduces an advanced finite control set model predictive current control (FCS-MPCC) specifically tailored for three-phase grid-connected inverters, with a …
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Aimed at the issues of the fixed range of vector selection, fixed amplitude, and fixed direction in the conventional single and double vector model predictive control for grid …
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Experience real-time simulation of grid-tied three-phase inverters using DQ control and SPWM for precise power regulation, grid synchronization, and enhanced stability.
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This paper proposes a control strategybased on the grid voltage oriented vector control (VOC), which makes three-phase inverter control the active and reactive power of grid-connected …
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