A New Multilevel Inverter Topology for Grid-Connected Photovoltaic Systems

Table 3

Comparison of systems.

GCPS	DMPC and basic CHB-based GCPS [7]	DMPC and topology in [9] based on GCPS [10]	Novel H-bridge and DMPC-based GCPS	Proposed topology and DMPC-based GCPS
Feature
Grid current harmonics (%)	1.5–2	2.7–3.1	2.5–2.7	3.2
Output voltage harmonics (%)	28–30	29–36	24–32	22
Total power extracted during 0 <  < 0.4 s (W)	623.50	613	618	623.25
Total power extracted during 0.4 <  < 0.8 s (W)	543	542	542	542.7
Total power extracted during 0.8 <  < 1.2 s (W)	462	385	395	462.65
Total power extracted during 1.2 <  ≤ 1.6 s (W)	456.9	383	391.5	456.95
Number of switches for 7-level MLI	12	9	6	10
(%)	83	89	96	95