Abstract
When multiple inverters are connected to the grid, due to the uncertainty of the internal model and the presence of external disturbances, the grid-connected current waveform will deviate from the expectation. In this paper, Active Disturbance Rejection Control (ADRC) strategy is presented to suppress the internal and external perturbations, moreover, the first-order ADRC parameters are designed. Finally, MATLAB/Simulink is utilized to verify the control strategy of ADRC. The simulation results demonstrate that the ADRC method can suppress the disturbance effectively.
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