Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

72 results about "Grid operator" patented technology

System, method, and apparatus for settlement for participation in an electric power grid

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of physical and financial settlement for participation of active grid elements in supply and / or curtailment of power. Settlement is provided for grid elements that participate in the electric power grid following initial registration of each grid element with the system, preferably through network-based communication between the grid elements and a coordinator, either in coordination with or outside of an IP-based communications network router. A multiplicity of active grid elements function in the grid for supply capacity, supply and / or load curtailment as supply or capacity, and are compensated through settlement for their functional participation in the electric power grid. Also, messaging related to settlement is managed through a network by a Coordinator using IP messaging for communication with the grid elements, with the energy management system (EMS), and with the utilities, market participants, and / or grid operators.
Owner:CAUSAM ENERGY INC

Elastic wave forward simulation technology based on space-time dual-variable grid

The invention discloses an elastic wave forward simulation technology based on the space-time dual-variable grid, comprising the following steps: determining the stability conditions of the target area and the background area according to the speed parameter and the elasticity parameter of the underground medium aiming to the known earthquake geological model so as to calculate the size of the space grids with different dimensions and perform the discretization process to the speed field; obtaining the space arbitrary precision difference formula of the grid point variables with different dimensions by using the Taylor's formula and the finite difference technology, which is the arbitrary even order accuracy space difference formula of the space constant grid operator and the space variable grid operator, and calculating the wave field values of the precise division area, the rough division area and the middle transitional belt area by using the deduced space difference formula; in the wave field extrapolation process of the time layer, using different time sampling intervals to different grid division areas and meet the partial stability condition, obtaining the wave field value of the precise grid point in the precise time layer and the wave field value of the rough grid point in the global time layer; in each global time layer, transmitting the wave field value of the precise grid division area to the rough grid division area, thereby obtaining the space wave field value of the whole speed field at the said moment; performing the wave field extrapolation on each time layer by the said method and obtaining the forward simulation record of single cannon. The partial stability condition of the shallow layer can be met, so as to avoid the frequency dispersion noise.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Network attack risk assessment method of distribution network CPS dependent system based on attacker perspective

The invention provides a network attack risk assessment method of a distribution network CPS dependent system based on an attacker perspective. From an attacker perspective, the risk level caused bypower grid cps system attack is analyzed based on different attack and invasion aims and the risk situation of potential attack paths is analyzed, so that the method provides a new perspective for thestudy of cps security analysis and protection methods, and provides an accurate basis for grid operators to formulate defensive measures.
Owner:NORTHEASTERN UNIV

Early-warning method and system for overheating risk for cable lines of distribution network

The invention provides an early-warning method and a system for an overheating risk for cable lines of a distribution network. The method comprises steps of: calculating resistance values of the cablelines in the historical period; determining resistance values of the cable lines in the prediction period according to the resistance values for the cable lines in the historical period; implementingthe early-warning of the overheating risk for the cable lines, according to a preset early-warning rule for overheating risk for cable lines and the resistance values of the cable lines in the historical period and the prediction period, wherein the early-warning rule for overheating risk for cable lines comprises a resistance threshold value, which is determined from the highest rated temperature and the linear relationship between the body temperature and the resistance. According to the early-warning method and the system for the overheating risk for cable lines of the distribution network, the method and the system can effectively realize the real-time monitoring and the prediction for the impedance parameters of cable lines of the distribution network; can accurately predict the overheating risk of the cable lines of the distribution network; has the advantages of being good in practicability, small in cost, simple in calculation, and easy to operate; and can provide a decision basis for the grid operator to operate and to maintain the cable lines.
Owner:CHINA ELECTRIC POWER RES INST +2

Coordinated scheduling method with AA-CAES for grid power and standby capacity

The invention discloses a coordinated scheduling method with AA-CAES for grid power and standby capacity. The method comprises a step of establishing an objective function of a grid power and standbycapacity coordinated scheduling model including power purchase cost, purchase standby cost and wind curtailment cost, a step of establishing constraints of the grid power and standby capacity coordinated scheduling model including AA-CAES power plant operation constraints, AA-CAES power plant standby capacity constraints, system constraints and conventional unit constraints, wherein positive and negative standby capacity constraints in the system constraints are expressed by using a fuzzy opportunistic constraint form, a step of carrying out clear equivalence processing on wind power unit output error and load prediction error fuzzy numbers of system positive and negative standby capacity constraints in the conventional unit constraints, carrying out linear processing on the AA-CAES powerplant operation constraints, and obtaining a clear equivalent model of grid power and standby capacity coordinated scheduling, and a step of solving the clear equivalent model by using optimization software to obtain an optimal power and standby capacity purchase plan of a grid operator.
Owner:HUAZHONG UNIV OF SCI & TECH

Smart home control strategy based on temperature change

The invention provides a smart home control strategy based on temperature change. The smart home control strategy comprises the following steps: negotiating, by an aggregator, with a grid operator through a service agent to determine a consumption task; sensing a real-time scheduling state of each load individual in any time slot according to a consumption task message; establishing an informationcontrol model of each load individual under a load aggregation system, analyzing and correcting a regulation and control variable in the time slot in real time, and determining a regulation and control type in the time slot; establishing a load selection logic rule, and performing scientific decision making on the load individuals participating in the regulation; and establishing a temperature setting value control rule to accurately execute a control signal of each load individual in an equipment group. According to the smart home control strategy provided by the invention, the information control model of each load individual and the temperature control value control rule are established, the control strategy architecture of the load aggregation system of four links, that is, state feedback logic, real-time analysis logic, scientific decision making logic and accurate execution logic, is designed to achieve the consumption of redundant new energy power generation in a power grid bythe aggregation load, and a feasible strategy is provided to solve the problem of supply and demand imbalance of the power grid caused by new energy penetration.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Device and method for giving early warning about main transformer DC magnetic bias event

ActiveCN110389250AImplement synchronicity analysisFast response to DC fluctuationsCurrent/voltage measurementElectrical testingShunt DeviceElectricity
The invention discloses a device and method for giving an early warning about a main transformer DC magnetic bias event. The device comprises a plurality of GPS clock modules, a plurality of shunts, aplurality of AC/DC synchronous acquisition modules, a data monitoring module, a big data analysis module and an early warning module; a main transformer neutral point ground loop in each monitoring point is connected in series with a shunt; each shunt is provided with a wiring terminal for sampling an AC/DC signal flowing through the main transformer neutral point; each shunt and the GPS clock module corresponding thereto are electrically connected to an AC/DC synchronous acquisition module; each AC/DC synchronous acquisition module communicates with the data monitoring module through a communication module; the data monitoring module is connected with the big data analysis module; and the big data analysis module is connected with the early warning module. The device can analyze the synchronism of DC fluctuations at multiple monitoring points, identifies a DC magnetic bias event, quickly identifies the type and hazard level of the DC magnetic bias event, locates a harmonic source, and provides a decision basis for grid operators and maintainers.
Owner:WUHAN XINDIAN ELECTRICAL TECH

Block chain-based micro-grid distributed energy transaction method and system

The invention provides a block chain-based micro-grid distributed energy transaction method, and belongs to the technical field of micro-grids. Comprising the steps that a micro-grid operator carries out matchmaking transaction according to electricity selling information and electricity purchasing information, and an intelligent contract signed between a power generation party user and an electricity purchasing party user is generated; the micro-grid operator broadcasts the intelligent contract to the block chain network and stores the intelligent contract to a node, and the intelligent contract is packaged into a block at the node and is chained; the micro-grid operator executes the smart contract, and completes value transfer and energy transfer of the smart electric meter according to the content in the smart contract; the micro-grid operator checks whether the actual power generation amount of the power generation party user is equal to the declared transaction power amount; the to-be-withdrawn amount of the power generation party is accounted; and the micro-grid operator returns the to-be-returned amount of the power generation party and the guarantee fund of the power purchasing party. The invention further provides a micro-grid distributed energy transaction system based on the block chain.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY +2
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products