A Nondestructive Islanding Detection Method Based on Adaptive and Periodic Disturbance on Reactive Power Output of Inverter-Based Distributed Generation

Table 1

Parameters of the study system.

	Parameters	Values
Grid	Voltage	400 V
	Frequency	50 Hz
	Grid resistance	0.05 Ω
	Grid inductance	0.8 mH
DG inverter controller	𝐾𝑝1/𝐾𝑖1	0.025/2
	𝐾𝑝2/𝐾𝑖2	1.5/0.01
	𝑃ref	200 kW