Reducing Fault Current by Using FACTS Devices to Improve Electrical Power Flow

Table 1

Effect of FACTS devices in peak fault current for different faults in Bus 6.

Fault type	Bus ID	Without FACTS (A in RMS)	SSSC (A in RMS)	STATCOM (A in RMS)	UPFC (A in RMS)
Three-phase fault	Bus 1	7210	7180	6518	6500
	Bus 2	5515	5510	4662	4540
	Bus 3	4377	4386	4041	4090
	Load A	172	170	160	157
	Load B	237	237	226	224
	Load C	665	675	592	553
Single line to ground fault	Bus 1	6138	5405	5350	5335
	Bus 2	6202	5985	5970	6090
	Bus 3	4754	4598	4335	4396
	Load A	247	245	218	218
	Load B	364	370	346	350
	Load C	236	251	204	212
Double line to ground fault	Bus 1	7706	7598	7600	7595
	Bus 2	6596	6681	6550	6530
	Bus 3	5258	5337	5180	5184
	Load A	181	185	165	153
	Load B	263	269	249	242
	Load C	569	571	506	505
Line to line fault	Bus 1	7831	7632	7249	7268
	Bus 2	6982	6860	5980	6356
	Bus 3	5556	5428	4515	5178
	Load A	183	180	165	160
	Load B	272	272	251	252
	Load C	562	567	519	515