2 results about "Hermite interpolation" patented technology

This invention discloses a method, device, system, and storage medium for longitudinal protection of distribution networks, including: 1) extraction of key response data strongly correlated with line protection and repair of abnormal data; 2) a longitudinal protection method based on Hellinger distance; and 3) a distribution network longitudinal protection method based on abnormal data repair and Hellinger distance. This application uses cubic trigonometric Hermite interpolation with shape parameters to identify and repair fault current data, effectively solving the problem of protection maloperation or failure to operate due to data loss or distortion, and improving the data reliability and adaptability of protection under complex operating conditions.

This invention discloses a parametric design method for a helicopter particle separator. The method first sets control points at key locations and constructs the central body contour of the separator using a cubic Hermite interpolation polynomial with weighted terms. Next, based on the cross-sectional areas of key locations such as the separator inlet, bifurcation, and throat, the outer wall surface of the core region and part of the bifurcation profile are derived. Subsequently, by adding control points again and combining the cubic Hermite interpolation polynomial with weighted terms, a complete outer wall surface contour curve is generated. Simultaneously, the bifurcation curve is designed using circular arcs and tangents. This method not only meets the structural design requirements of the particle separator but also precisely controls the changing trend of its internal pressure gradient and supports flexible adjustment of key geometric parameters, thereby achieving efficient parametric design and optimization of the particle separator.