公开(公告)号：US20200335978A1

公开(公告)日：2020-10-22

申请号：US16842816

申请日：2020-04-08

Applicant: Xi'an University of Technology

Inventor： Haipeng REN ,  Jie LI

IPC: H02J3/48 ,  H02J3/38

Abstract: The present disclosure discloses an adaptive control method for an output feedback of a VSG. The method includes: analog signals are converted to digital values; VSG excitation output by reactive power-voltage regulation control is calculated, and an output voltage amplitude and a grid voltage amplitude of a three-phase full-bridge inverter are calculated; an active power, a reactive power and an excitation electromotive force are calculated; an initial value of speed feedback coefficient is calculated; angular speed and phase are output, and a rotation speed difference and an angular acceleration are calculated; the speed feedback coefficient is set according to the rotation speed difference; the CLARK transform is performed by means of the excitation electromotive force to obtain a voltage in an α-β stationary coordinate system; and SVPWM is performed to obtain a six-way switch control pulse driving the three-phase full-bridge inverter and implement a three-phase AC current feedback grid.