Advanced algorithm for fault detection and localization in DC microgrids utilizing capacitor current transient analysis for enhanced reliability in DER-integrated systems | Science and Technology for Energy Transition (STET)

Enabling Technologies for the Integration of Electrical Systems in Sustainable Energy Conversion

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Table 2

Comparative analysis of fault detection and location methods.

Parameters	Various fault detection and location methods
	PS	[13]	[19]	[23]	[64]	[22]	[4]	[18]	[21]	[5]	[7]	[15]	[36]	[37]
FD parameters	C–C	FC–C	L–C	L–C and LV	L–C	C–C	C–C	L–C	L–I	L–C	C–C	C–C	L–C	C–C
No. of sources	5	4	4	6	4	2	4	2	2	6	1	7	4	6
R_f	10	0.1	0.6	200	2	10	25	x	x	50	10	2	100	2
Sensing (v, i)	i	i	i	v,i	I	i	i, v	i	i,v	i,v	v,i	v,i	v,i	i
FD time (ms)	2.3	1.98	x	<2	2	1.5	1.25	x	10	2	1.25	100	19	1
FL (TL, LS)	LS	TL	TL	TL	TL	LS	TL	TL	LS	TL	TL	T-L	T-L	T-L
Fault classification	Yes	No	No	Yes	No	Yes	Yes	No	No	Yes	No	No	No	No
Errors in D (%)	2.59	x	x	5	8.32	x	7.1	x	2	3.59	8.7	6.42	1.6	9.75
DCMG with the EV station	Yes	Yes	Yes	No	No	Yes	Yes	No	No	Yes	No	No	No	No
Cable required for FL calculation	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	No	Yes	Yes	Yes	Yes

PS = proposed scheme, L–C = line current, L–V = line voltage, FC–C = filter capacitor current, C–C = capacitor current, x = not given, FD = fault detection, FL = fault location, TL = transmission line, LS = load side, D = fault distance.

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