7 results about "Energy security" patented technology

This invention discloses an intelligent control method for building photovoltaic (PV) curtain walls based on the linkage between light transmittance and energy storage status. This invention relates to the field of PV curtain wall control technology. By real-time monitoring of PV array power generation, energy storage system state of charge (SOC), and building load data, a SOC change curve is constructed to divide the power into high, medium, and low energy zones. A global control mode is automatically matched, maximizing economic benefits, self-balancing, or ensuring energy security. Based on this, an objective function is established with grid purchase cost, temperature deviation penalty, and battery loss as comprehensive objectives. A rolling optimization strategy is used to solve for the optimal light transmittance, energy storage charging and discharging power, and load adjustment under constraints, forming a collaborative control instruction set and issuing it for execution. This achieves deep coupling control of the PV curtain wall's light transmittance characteristics and the energy storage system, balancing building energy efficiency, economic benefits, and energy security, and improving the overall operational performance and intelligence level of the building PV system.

This invention proposes a multi-energy safety assessment method and system considering multiple time scales and coupled faults. The method includes: establishing an intermediate time-scale model and a long-time-scale model of the integrated energy system; conducting a safety assessment for each fault scenario in a fault scenario set; wherein, using the long-time-scale model to perform an N-1 safety scan of the fault scenarios considering coupled faults, calculating system risk assessment indicators; when the system risk assessment indicators reflect that the fault scenario may lead to water hammer consequences, using the intermediate time-scale model to calculate the overpressure value generated during the water hammer process; and generating the final safety assessment result of the integrated energy system based on the safety assessment results of each fault scenario. This invention can capture the water hammer effect of the heating network and the cascading faults caused by the coupling of the logical and geographical layers, which are often overlooked in traditional assessments, achieving a more comprehensive and accurate safety assessment of the integrated energy system and helping to improve the operational safety of the system.

This application discloses a solar-powered pneumatic lifting and generating device, including a counterweight, an air plug, an air chamber, an air intake pipe, a generator, a stiffening chamber, a lifting and stiffening mechanism, and solar panels. Both the air chamber and the stiffening chamber are cylindrical and connected by the air intake pipe, which is equipped with a control valve. The air chamber has a cavity at its top, within which an air plug is movably mounted, and a counterweight is fixed to the top of the air plug. The generator is located on one side of the stiffening chamber, and its impeller is connected to the stiffening chamber via a pipe. The lifting and stiffening mechanism includes a motor, a pulley system, and a rope. One end of the rope is connected to the motor output, and the other end is connected to the counterweight via the pulley system. Several solar panels are connected to the motor via cables. This application provides a practical and innovative solution for distributed microgrids, independent power supply in remote areas, and emergency energy security, ensuring power supply reliability while minimizing dependence on fossil fuels and improving energy efficiency.

The application discloses a kind of simulation lithium battery thermal runaway thermal radiation and dynamic synergistic switching control method of jet fire, belong to energy safety and thermal management technical field, this method aims at solving the problem that single heat source cannot truly reproduce the whole process of thermal runaway in existing test, heat flux density is discontinuous and control lag.The method comprises: setting target heat flux density curve including radiation heating, synergistic switching and jet fire leading three stages;Real-time acquisition of battery state is carried out by multi-physical field sensor;Switching opportunity is judged based on thermal runaway prediction model;In switching stage, radiation and jet fire heat source power are smoothly adjusted, to ensure that total heat flux density continuously and accurately tracks target curve.The system includes double-source heating module, data acquisition module and central control module, to realize high-fidelity, high-repetitive thermal runaway whole process simulation.

This invention provides a data center energy security scheduling method, system, equipment, and medium, belonging to the field of computer technology. Specifically, it models the problem as a constrained Markov decision process (CMDP), where the agent's objective is to minimize energy costs while adhering to a security constraint to ensure a continuous and sufficient power supply and prevent power shortages. A Lagrange-based constrained policy optimization algorithm is employed to learn a control strategy that conforms to predefined constraints. Under the premise of ensuring sufficient power supply to the data center, it effectively addresses the intermittency of renewable energy and electricity price fluctuations, achieving optimal operating costs and significantly improving the reliability and economy of microgrid operation.

The application is suitable for the technical field of new energy safety evaluation, and provides a dynamic evaluation method for operation risk of distribution network photovoltaic facilities under rainstorm conditions. In the embodiment, for the photovoltaic facilities to be evaluated, the multi-dimensional evaluation indexes including meteorological dimension, equipment dimension and operation dimension and the weight values of the indexes are determined; then the real-time risk evaluation data corresponding to the risk evaluation indexes are input into a risk grade comprehensive evaluation model to obtain a comprehensive evaluation vector of the photovoltaic facilities, and finally the final estimated risk grade and the corresponding processing method are determined through the comprehensive evaluation vector. In the embodiment, the three-dimensional data of meteorology-equipment-operation are processed, so that the evaluation result output by the risk grade comprehensive evaluation model of the application has high accuracy and comprehensiveness, thereby the fault early warning probability can be improved and the accidents can be reduced.

The present application relates to a kind of blockchain-based vehicle networking energy security transaction method, belong to vehicle networking and distributed energy transaction field.The method aims at solving the problem of fair pricing under asymmetric information, user privacy protection and transaction efficiency.The gist is that: authority issues certificate for vehicle and roadside unit;Vehicle node signs broadcast transaction request;Roadside unit verifies and broadcasts demand and collects response, then triggers smart contract;The contract is based on bayesian Nash equilibrium model, and the optimal equilibrium transaction volume and price are obtained by solving the first-order condition of maximum expected utility, to realize automatic matching;Identity and data privacy are protected by combining ring signature and zero-knowledge proof;Hybrid consensus mechanism is used to improve efficiency;Finally, deposit escrow, settlement and default handling are automatically completed by contract.The method is used to build decentralized, safe and reliable vehicle networking energy transaction market.