Research Article
Two-Stage Fault Diagnosis Method Based on the Extension Theory for PV Power Systems
Table 1
Three different sorts of mathematical sets.
| Compared item | Standard set | Fuzzy set | Extension set | Research objects | Data variables | Linguistic variables | Contradictory problems | Model | Mathematics model | Fuzzy mathematics model | Matter-element model | Descriptive function | Transfer function | Membership function | Correlation function | Descriptive property | Precision | Ambiguity | Extension | Range of set | | | |
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