Research Article
Fault Diagnosis of PV Array Based on Time Series and Support Vector Machine
Table 1
Fault classification labels and sample data.
| Label | Classification | Feature | Quantity | Proportion |
| D0 | Normal operation 1 | Irradiation 600 W/m2 | 20 | 4.6% | Normal operation 2 | Irradiation 800 W/m2 | 20 | 4.6% | Normal operation 3 | Irradiation 1000 W/m2 | 30 | 6.8% |
| D1 | Fixed shading 1 | Small area shading | 60 | 13.6% | Fixed shading 2 | Large area shading | 60 | 13.6% |
| D2 | Random shading 1 | Morning shadows | 50 | 11.4% | Random shading 2 | Noon shadow | 50 | 11.4% | Random shading 3 | Afternoon shadow | 60 | 13.6% |
| D3 | Aging degradation 1 | Slight aging (12 Ω) | 30 | 6.8% | Aging degradation 2 | Moderate aging (24 Ω) | 30 | 6.8% | Aging degradation 3 | Severe aging (36 Ω) | 30 | 6.8% |
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