Abstract
The active power-phase angle droop control avoids the frequency deviation problem caused by taking the frequency as the droop variable. However, the active power output of distributed generations (DGs) can only be allocated by adjusting the droop coefficient, and the reference value of active power output cannot be set arbitrarily. In this paper, a phase angle correction module attached to the active power-phase angle droop control is proposed. This correction module is based on the real-time data of the voltage and phase angle of the node at the generation end and the transmission end of the grid, and directly changes the phase angle reference value of the active power-phase angle droop control output. The correction can make the phase angle reference value reach the phase angle value corresponding to the active power reference value without changing the actual characteristics of the droop control, so as to adjust the active power output of the converter to reach the active power reference value. Finally, the feasibility of the correction method in different cases is verified by Matlab 23.2.0.2365128 (R2023b)/Simulink simulation.
Published Version
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