Research Article
Modeling and Performance Analysis of a Grid-Connected Photovoltaic System with Advanced Controller considering Varying Environmental Conditions
Table 5
THD comparisons of the proposed system with existing grid-connected systems.
| | Author | Inverter | Control method | Conversion type | %THD |
| | Kumar et al. [22] | Reduced switch asymmetric MMI | PSO-GA-based P&O | Two stage | 3.70% | | Sriram and Nagaraja [25] | T-type three-level inverter | P&O | Two stage | 3.18% | | Kumar et al. [26] | Reduced switch modular MLI | Fuzzy logic P&O | Two stage | 3.08% | | Proposed | NPC inverter (case 1) | PSO-based P&O | Single stage | 1.67% | | NPC inverter (case 2) | PSO-based P&O | Single stage | 1.74% | | NPC inverter (case 3) | PSO-based P&O | Single stage | 1.61% | | Proposed | NPC inverter (case 1) | AGO-RNN-based P&O | Single stage | 1.54% | | NPC inverter (case 2) | AGO-RNN-based P&O | Single stage | 1.55% | | NPC inverter (case 3) | AGO-RNN-based P&O | Single stage | 1.59% |
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