Shunt Active Power Filter Based on Proportional Integral and Multi Vector Resonant Controllers for Compensating Nonlinear Loads

Table 2

Compensation results with two control algorithms.

Order of harmonic		5	7	11	13	17	19	THD (%)
Harmonic distortion before compensation (%)		21.3	9.87	5.60	3.36	1.80	0.92	26.1
Harmonic distortion after compensation (%)	With PI controller	2.16	1.86	1.76	1.80	1.74	1.82	7.34
	With the proposed method	0.72	0.48	0.35	0.2	0.18	0.10	2.86