Abstract: The disclosure provides a vibrating wire compressive stress gauge and stress testing equipment suitable for use in low-temperature environments. By providing a stress trigger sleeve made of elastic material, the concrete structure of the lining itself expands when it is affected by high or low temperatures, extruding the stress trigger sleeve, and the extrusion force is offset through the elastic force of the elastic material, thereby preventing the expansion force from being transmitted to the vibrating wire assembly to generate stress signals that are caused by the self-expansion of the lining structure, which may cause measurement error. Specifically, the vibrating wire assembly is provided in the vibrating wire measurement space composed of a stress trigger sleeve and a pair of anchoring disks. When the lining is subjected to external stress, a certain internal force will be generated.

Abstract: The present application provides a shared energy storage scheduling method and system based on energy frequency regulation and load demand. The method includes: establishing an objective function of a shared energy storage system participating in cooperative scheduling of energy frequency regulation and load demand; inputting relevant parameters of a grid side, a user side and the shared energy storage system into the objective function; solving the objective function according to an objective function constraint condition and a switching cost of a load importance degree and in combination with a mixed integer linear programming algorithm, to obtain a shared energy storage configuration scheme; configuring the shared energy storage system according to the shared energy storage configuration scheme, and controlling the shared energy storage system to participate in energy cooperative scheduling of the grid side and the user side according to a hierarchical control strategy of the shared energy storage system.