Examinando por Autor "Wu, Xiaojie"

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    Finite-Set Quasi-Sliding Mode Predictive Control of LC-Filtered Voltage Source Inverters
    (Institute of Electrical and Electronics Engineers Inc., 2022-12-01) Zheng, Changming; Gong, Zheng; Wu, Xiaojie; Dragicevic, Tomislav; Rodriguez, Jose; Blaabjerg, Frede
    Three-phase voltage source inverters (VSIs) with output LC filter are preferred topologies to provide voltage and frequency support for islanded ac microgrids. This article proposes a finite-set quasi-sliding model predictive control (FS-QSMPC) scheme for LC-filtered VSIs to improve the output-voltage quality. By explicitly including a predictive sliding-mode function into the cost function, reduced steady-state ripple and enhanced robustness are achieved compared to typical FS-MPC. Besides, theoretical analysis of stability and robustness for FS-QSMPC is given. Analytical tuning of the weighting factor is also derived to decrease the tuning effort. Comparative simulations and experiments verify the presented approach. © 1982-2012 IEEE.