2 results about "Multi grid" patented technology

This invention provides a method for inverting the surrounding rock mechanical parameters of hydraulic cavern groups based on the PO-SVM collaborative optimization algorithm, relating to the field of water conservancy and hydropower engineering technology. This method combines the efficient search capability of the Parrot Optimization (PO) algorithm with the Linear Support Vector Machine (SVM), which can fully utilize the advantages of the PO algorithm in its strong global optimization capability and the efficient data learning capability of the SVM surrogate model, significantly reducing the number of global optimizations and the number of fitness evaluations of the objective function, thereby making the inversion of the surrounding rock mechanical parameters of the refined multi-grid model of hydraulic cavern groups more efficient and reliable.

This invention belongs to the field of smart grid technology, specifically relating to a method and apparatus for assessing inter-grid spatiotemporal mutual assistance demand considering the correlation of multiple source loads. The steps include: acquiring and preprocessing basic data of the distribution network to be analyzed; establishing a power grid operation simulation model to extrapolate the operating status of each power grid at different times throughout the year; calculating the local net imbalance power of each power grid at different times; constructing a multi-grid multi-source load random variable vector to generate a set of typical operating scenarios and scenario probabilities that satisfy spatiotemporal correlation characteristics; establishing and solving a spatiotemporal mutual assistance demand assessment model; and based on the solution results, calculating the expected mutual assistance power, mutual assistance dependence, deficit fulfillment rate, and interconnection capacity demand indicators between grids to form the spatiotemporal mutual assistance demand assessment results between power grids. This invention can accurately quantify inter-grid mutual assistance demand, providing a scientific and practical quantitative basis for distribution network planning and coordinated operation.