Research Article
Maximum Power Point Tracking Method Based on Modified Particle Swarm Optimization for Photovoltaic Systems
Table 2
Comparison of the tracking success rates for the conventional and modified PSO methods.
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MPPT methods | Module array configuration and shade conditions
| Four-series one-parallel: one module with 30% shading and one module with 55% shading | Four-series one-parallel: one module with 25% shading and one module with 30% shading | Two-series two-parallel: one module with 25% shading and one module with 30% shading | Four-series one-parallel: no module shading |
| Conventional PSO method | 75/100 attempts* | 72/100 attempts | 71/100 attempts | (i) With weight set to 0.4: 49/100 attempts (ii) With weight set to 0.7: 100/100 attempts | Modified PSO method | 100/100 attempts | 100/100 attempts | 100/100 attempts | 100/100 attempts |
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Note: Number of successes/total number of attempts.
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