3results about How to "Good engineering value" patented technology

This invention discloses a method, device, and system for optimizing maintenance decisions in energy storage systems based on reinforcement learning-based multi-component lifetime collaborative modeling. The method constructs a collaborative lifetime decay model for key power devices (including IGBTs and DC bus capacitors) in the energy storage converter, collects operational data in real time, and establishes a multi-state fusion method for characterizing operational health. Furthermore, it utilizes reinforcement learning algorithms to optimize maintenance strategies. By jointly modeling the lifetime recovery effect, cost, failure risk, and system stability of different maintenance behaviors, a multi-objective reward function is constructed to achieve adaptive optimization of maintenance decisions. This invention can automatically determine the timing of overhaul or preventative maintenance based on the equipment's operating status and aging condition, eliminating the need for fixed-cycle manual maintenance, effectively reducing failure rates and maintenance costs. This invention is applicable to intelligent operation and maintenance and state management scenarios for energy storage converters.

The present application relates to the technical field of self-driven measurement-while-drilling tool, and particularly relates to a self-driven along-drill-string measurement system based on a friction nanogenerator. The technical scheme comprises a friction nanogenerator, an energy management unit, a low-power wireless communication relay node and a ground control terminal. The friction nanogenerator is used to collect the vibration energy of the drill pipe and convert it into electric energy. The friction nanogenerator adopts a sliding independent layer structure and comprises a rotor and a stator. The present application realizes distributed self-driving by deploying the friction nanogenerator at each communication node and utilizing the downhole vibration energy. The energy converted by the friction nanogenerator at the drill bit is enough to emit stronger communication signals, ensuring sufficient energy supply, rapid response of communication content and efficiency, developing information transmission technology with continuous power supply and low-power operation in the process of measurement-while-drilling, and realizing bidirectional communication of information, which has remarkable engineering value for difficult-to-exploit oil and gas resources.

This invention belongs to the field of transformer manufacturing technology and relates to a transformer seismic support, comprising a top mounting plate, an elastic damping mechanism, a central connecting seat, and a fixed base connected sequentially from top to bottom. The elastic damping mechanism includes four sets of helical springs and laminated rubber columns, which are fitted inside the helical springs. The top of the laminated rubber columns is fixedly connected to the four corners below the top mounting plate, and the bottom of the laminated rubber columns is fixedly connected to the four corners above the central connecting seat. Mounting through holes are provided at the four corners of the top mounting plate, and threaded holes are provided at the center of the top of the laminated rubber columns. Connecting bolts pass through the mounting through holes and are screwed into the threaded holes. This invention has a simple structure, is easy to install, has low cost, and high durability, conforming to the GB / T 42558 series standards. Through the synergistic effect of elasticity, damping, and seismic isolation, it achieves efficient energy absorption, ensuring the stability and functional integrity of the power transformer during earthquakes.