A Voltage Control Strategy of VSG Based on Self-Adaptive Inertia Coefficient and Droop Coefficient

Table 1

VSG control system parameter settings.

Parameters	Descriptions	Values
Udc	DC voltage	800 V
	Grid voltage	220 V
L1	Filter inductance	3.2 mH
	Grid-side inductance	3.2 mH
C	Filter capacitor	14 μF
SN	Rated capacity of VSG	10 kV A
fp	Power frequency	50 Hz
fs	Switching frequency	5 kHz
J	Inertia coefficient	0.45 kg m^2
Dp	Droop coefficient	30 N m s/rad
Dqo	Initial droop coefficient	321 var/V