Application of Flower Pollination Algorithm for Solving Complex Large-Scale Power System Restoration Problem Using PDFF Controllers

Table 4

PSRI of the power system under investigation for a different type of controller.

Load demand change	PSRI of the system with PI controller					PSRI of the system with PDFF controller
	Setting 1	1.606	1.601	0.098	0.033	0.322	1.595	1.508	0.095	0.031	0.264
Setting 2	1.927	1.722	0.134	0.053	0.417	1.845	1.623	0.108	0.032	0.345
Setting 3	1.863	1.872	0.107	0.042	3.523	1.784	1.678	0.096	0.036	3.467
Setting 4	2.318	2.171	0.137	0.046	3.937	2.237	2.073	0.127	0.043	3.872
Setting 5	1.557	1.674	0.106	0.038	1.902	1.478	1.578	0.091	0.032	1.784
Setting 6	1.626	1.887	0.113	0.043	1.761	1.547	1.789	0.109	0.037	1.687
Setting 7	1.836	1.973	0.118	0.046	3.604	1.758	1.875	0.104	0.039	3.523
Setting 8	1.924	2.072	0.124	0.044	3.311	1.845	1.978	0.112	0.041	3.124
Setting 9	2.132	2.377	1.168	0.059	1.619	2.051	2.278	1.142	0.057	1.437
Setting 10	2.208	2.475	1.175	0.062	1.785	2.127	2.378	1.157	0.058	1.594
Setting 11	2.426	2.556	1.181	0.067	3.875	2.347	2.458	1.158	0.059	3.696
Setting 12	3.055	2.971	1.269	0.071	3.861	2.972	2.879	1.245	0.061	3.688