Research Article
An Intelligent Maximum Power Point Using a Fuzzy Log Controller under Severe Weather Conditions
| Case no. | Condition | Ir1 (W/m2) | Ir2 (W/m2) | Nominal power (W) | Power after fuzzy (W) | Efficiency |
| 1 | Uniform irradiation | 1000 | 1000 | 149 | 149 | 100% | 2 | Uniform irradiation | 900 | 900 | 133 | 133 | 100% | 3 | Uniform irradiation | 800 | 800 | 118 | 117.5 | 99.6% | 4 | Uniform irradiation | 700 | 700 | 102.5 | 101.5 | 99% | 5 | Uniform irradiation | 600 | 600 | 87.2 | 87 | 99.8% | 6 | Uniform irradiation | 500 | 500 | 71.3 | 70.8 | 99.3% | 7 | Uniform irradiation | 400 | 400 | 56.5 | 56 | 99% | 8 | Uniform irradiation | 300 | 300 | 41.5 | 41 | 99% | 9 | Uniform irradiation | 200 | 200 | 26.6 | 24.5 | 92% | 10 | Partial shading | 1000 | 800 | 126.3 | 126 | 99.8% | 11 | Partial shading | 900 | 600 | 95.7 | 94 | 98% | 12 | Partial shading | 800 | 500 | 79.5 | 79 | 99.4% | 13 | Partial shading | 700 | 500 | 78.2 | 78 | 99.7% | 14 | Partial shading | 600 | 400 | 62.3 | 62 | 99.5% | 15 | Partial shading | 900 | 300 | 61.4 | 60 | 97.7% | 16 | Partial shading | 700 | 300 | 48 | 47.5 | 99% | 17 | Partial shading | 500 | 300 | 46.3 | 46 | 99.4% |
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