2 results about "Matter element model" patented technology

The application discloses a kind of product concept design reliability prediction methods, comprising: S1 is carried out to target product structure classification, obtains the key components of target product and the design life value of target product;S2 according to the key components in S1 is for the target product Virtual test matter element model R is built, and the virtual test matter element model R includes the key components of the target product theoretical design parameter;S3 is based on the virtual test matter element model R in S2, carries out iterative analysis and obtains multiple groups about target product Accumulative damage value and corresponding virtual life value;S4 according to the virtual life value corresponding when the first occurrence cumulative damage value is greater than or equal to 1 in S3 as comparison value, compared with the design life of target product, to judge the reliability of target product.The application also provides a kind of system suitable for the prediction method.The system is simple to operate, and it is convenient for user to carry out quick judgment to the reliability of product concept design scheme.

The application discloses a kind of transformer state evaluation methods based on fuzzy matter-element and principal component analysis, belong to transformer operating state evaluation technical field, this method first utilizes matter-element method to establish the matter-element model of transformer, the index information of multiple elements of transformer is fused, and the model is fuzzy and normalized processing;Entropy weight method is introduced into the weight calculation of transformer state index, and the weight of transformer state index is obtained using the operation data of transformer state index;Principal component analysis is used to extract the main component, and the main component is used to replace all components to reduce the transformer online monitoring state quantity.Finally, a transformer state evaluation model based on fuzzy matter-element and principal component analysis is designed, and the operating state of the transformer is finally obtained;The application uses entropy weight fuzzy matter-element and principal component analysis to safely and effectively evaluate the transformer state, which can assist the dispatching department of power grid to make decisions and improve the stability of power grid operation.