96 results about "Energy security" patented technology

The invention provides a full-time energy efficiency control method and system of an intelligent station. The full-time energy efficiency control method of the intelligent station comprises the following steps that data are collected; real-time data of monitoring points are collected; statistical analysis is carried out; the real-time data sent in the step of data collection are calculated to obtain real-time energy efficiency data; alarms are given to events; the real-time energy efficiency data sent in the step of statistical analysis are judged; the real-time data sent in the step of data collection are judged; real-time controlling is carried out; a control command is issued according to an energy efficiency control strategy and a safety control strategy, and therefore the monitoring points are controlled. According to the full-time energy efficiency control method and system, energy management, a self-control system and service management are correlated, economy, safety and controllability can be achieved, and energy safety management and service process management of the station can be effectively achieved.

The invention discloses a comprehensive energy system risk identification method based on multi-energy flow fault coupling propagation, and relates to the field of comprehensive energy safety analysis, which comprises the following steps: 1) respectively establishing mathematical models of a power system, a thermodynamic system, a natural gas system and electric thermal coupling equipment; 2) designing a risk identification system: putting forward a multi-dimensional risk identification index system for the multi-energy type contained in the comprehensive energy system; 3) calculating and analyzing a load margin optimization model of the electric thermal coupling system by combining a comprehensive energy network power flow optimization algorithm; and 4) based on the risk of load margin loss probability, determining a key branch, a node, a coupling propagation path and a key energy hub for mutual conversion between heterogeneous energy flows of the energy transmission network in the comprehensiveenergy system. The invention provides a comprehensive energy system risk identification method based on multi-energy flow fault coupling propagation. The safety, flexibility and reliabilityof social energy supply are improved.

The invention discloses a method for increasing regulation storage and generating compensation benefits of a high-dam leading reservoir. According to the method, a water turbine and difference of dynamic water generating of a water diversion system and a safe waterhead of still water retaining are adopted, a new limit dead water level is set below an existing dead water level of the reservoir, the regulation storage and the available water supply in the dry season can be increased, and the generating benefits of all downstream hydropower stations are increased accordingly; a hydraulic turbine set and a corresponding water diversion generating system which are suitable for operation of the limit dead water level and the original dead water level are additionally arranged, and the generating benefits of the hydropower stations are increased; the newly increased available water supply in the dry season enables other weepage water channels of the hydropower stations to discharge; after the limit dead water level is additionally set, the function of emptying the upper layer water storage is achieved as well. According to the method, the direct water supply generating benefits are remarkable, national energy security is facilitated, and the grid electric energy quality is promoted beneficially; meanwhile, the method has the advantages that the proportion of utilizing the clean energy and renewable energy sources is increased, the utilization efficiency of water resources is improved, and environment protection is promoted.

The invention discloses a method for large-scale stable delivery of wind power generation. In the method, wind power is taken as the major part, pumped storage is used as an energy storage adjusting means for the wind power, and thermal power is used for supplementation, so that large-scale stable delivery of wind power generation is realized; when more solar power exists around, light energy can be delivered in a complementation with wind power, then the pumped storage is used for storing, and the thermal power is used for adjusting the storage or supplementation. In the method, the wind power is taken as the major part, the electric energy in other forms is used for supplementing the wind power, and rational dispatching is performed through a power transmission line, so that the large-scale stable delivery of wind power generation is realized. The development of wind power generation is promoted. The method has extremely obvious direct power generation benefit, is possibly developed together with the wind energy at the areas such as Mongolia and the like, has extremely remarkable indirect environmental benefit and also contributes to national energy safety. The large-scale wind energy utilization is facilitated; the coal-generated power at the delivery end can be promoted; the economy of the power transmission line is improved; the dispatching of a receiving power grid is facilitated; and the method has the benefit in the aspect of environmental protection by using clean and renewable energy.

The invention discloses a star lithium battery autonomous control management method. The method comprises the steps that 1 the voltage of a storage battery group and the individual voltage of the storage battery group are collected by cycle, and the validity of the collected data is judged to eliminating invalid data; 2 the collected valid data and a set threshold are compared, and according to acorresponding program control policy, lithium battery over-discharge alarm program control management is carried out; and 3 if the voltage of a lithium-ion storage battery group is higher than the voltage of the storage battery group, the threshold is recovered after over-discharge protection, and protection recovery after over-discharge is carried out. According to the invention, the requirementof satellite on-orbit autonomous management is solved; the on-orbit control instantaneity of satellite energy management is improved; and the satellite on-orbit energy security is ensured.

To produce food, plants rely on three main ingredients, sun energy, water, and carbon dioxide, the cost of which is zero. To address the food and energy security concerns, two mysteries are resolved for the first time: i)—Photosynthetic efficiency is known to be very low, the scientific full accounting for all the losses is lacking; ii)—Fanning is known to be profitable, yet accounting for the zero cost of solar energy is not understood. This inventor resolved them by the derivation of a simple mathematical law, AgriPAL, comprising explicitly, a new solar gain factor >200× which offset the low efficiency of ˜0.005. In the absence of the sun, the newly found solar gain goes to 1. Since SanSSoil enables harnessing the third dimension, the sky is the limit. Water saving of >100 is realized through the controlled enclosed environment.