Experimental Harmonics Analysis of UPS (Uninterrupted Power Supply) System and Mitigation Using Single-Phase Half-Bridge HAPF (Hybrid Active Power Filter) Based on Novel Fuzzy Logic Current Controller (FLCC) for Reference Current Extraction (RCE)

Table 1

Different UPS System Efficiency and THD Result from experimental analysis

UPS system			Efficiency		THD
U.P.S	Battery	Power	Charging (%)	Discharging (%)	Charging
	Voltage V	Watt
U.P.S#1	12	800	79	63.5.0	30.6
U.P.S#2	12	550	80	70	70.5
U.P.S#3	24	650	76	86	15.5
U.P.S#4	24	1600	84.7	77.5	25.1
U.P.S#5	24	1200	78	86.5	21.5
U.P.S	Average THD				32.63%