Research on Grid Investment Project Portfolio Optimization Model under the Supervision and Examination of Transmission and Distribution Costs

The affecting factor mining arithmetic based on gray correlation degree - principal component factor is used to cotton the key affecting factors of power grid investment demand. The gray correlation analysis method is used to remove non-critical affecting factors, and the principal component analysis method is used to reduce the overlap of key affecting factors. And reduce the dimensionality of the input vector of the prediction model.