Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage

Table 2

Comparison between calculation and simulation results for different power control coefficients.

Coefficient group (, )	Calculation value
	/A	/V	/W	/Var	/VA
D (−0.8, −0.6)	6.73	42.2	385.2	1329.3	574.0
E (−1, −0.2)	6.36	9.1	83.3	976.3	261.9
F (−0.884, −0.290)	6.30	4.1	37.4	1024.7	234.9
G (0.2, −0.4)	5.61	69.5	634.0	359.9	579.2
H (−0.8, 0.6)	6.99	132.4	1208.2	675.1	1101.6
I (0.2, −0.2)	5.49	63.9	582.6	409.6	548.0
J (0.2, 0.6)	5.72	45.2	412.5	633.7	456.7
K (0.4, 0.8)	6.30	46.9	427.8	915.0	525.2
Coefficient group (, )	Simulation value
	/A	/V	/W	/Var	/VA
D (−0.8, −0.6)	6.51	41.5	377.5	1321.5	566.3
E (−1, −0.2)	6.35	9.8	89.6	981.8	268.0
F (−0.884, −0.290)	6.34	3.8	34.4	1034.5	234.4
G (0.2, −0.4)	5.59	67.9	641.3	360.5	585.1
H (−0.8, 0.6)	6.83	132.2	1206.1	672.9	1099.5
I (0.2, −0.2)	5.56	61.4	577.6	413.7	544.8
J (0.2, 0.6)	5.75	43.6	407.2	638.4	453.4
K (0.4, 0.8)	6.31	45.4	423.2	909.6	520.5