Parameter Optimization of Droop Controllers for Microgrids in Islanded Mode by the SQP Method with Gradient Sampling

Table 4

The limits of controller parameters.

Variable	Lower limit	Upper limit
	9e − 6	1e − 3
	1.3e − 5	9e − 3
	0.0003	0.1
	200	450
	0.01	15.5
	10e3	16e4