A Hierarchical Fuzzy Comprehensive Evaluation Algorithm for Running States of a Mine Hoist Synchronous Motor Drive System (MHSS)

The paper proposes a fuzzy hierarchical comprehensive evaluation method including fuzzy matrix and comprehensive evaluation matrix calculation thought to evaluate the running state of a mine hoist synchronous motor drive system (MHSS). Based on fault analysis of each component of the MHSS, the index system of state evaluation is constructed, including three primary indexes, several secondary and tertiary indexes, etc. A hierarchical fuzzy comprehensive evaluation model is constructed. The paper carried out the simulation experiment for the MHSS with a model number of JKMD-44(Z). The experimental results show that the established state evaluation model can accurately judge the operation state of the MHSS.