Coordination of dual setting overcurrent relays in microgrid with optimally determined relay characteristics for dual operating modes

Protection and Control of Modern Power Systems

Table 11 Summary of total relay operating time using single and dual setting overcurrent relays in common operating mode

Sr. nos	Test system	Optimization technique	Total relay operating time (s)		Percentage reduction in total relay operating time
Sr. nos	Test system	Optimization technique	Conventional DOCR	Dual setting DOCR	Percentage reduction in total relay operating time
1	7 Bus microgrid	GA [20]	2.4392	1.6800	31.12%
		GWO	2.4412	1.7028	30.24%
2	18 Bus microgrid	GA [20]	11.2509	4.4472	60.47%
		GWO	7.0393	4.5780	34.96%