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219 results about "System topology" patented technology

A network topology describes the arrangement of systems on a computer network. It defines how the computers, or nodes, within the network are arranged and connected to each other.

Knowledge graph-driven textbook automatic generation method and system

The invention relates to the technical field of automatic generation, in particular to a knowledge graph driven teaching material automatic generation method and system. The method comprises the following steps: receiving teaching target input, analyzing the teaching target input into a multi-layer structure based on a preset teaching intention meta-model, and mapping the multi-layer structure to a knowledge graph node; generating an optimal teaching path through a rule engine in combination with the node topology position and the teaching intention level; after the topological fingerprint of the target textbook system is recognized, compatibility analysis is executed, and if a structural gap exists, a transition module is automatically inserted to reconstruct a path; calling the bound multi-modal content unit according to the reconstruction path node, and completing modal coordination according to a cross-modal dependency graph; and finally, performing structured rendering on the integrated content, and outputting a textbook body adaptive to the terminal. The method has the advantages of teaching intention deep understanding, multi-modal content consistency control and cross-textbook system adaptation, and the intelligence level and generalization ability of textbook generation are improved.
Owner:SHENZHEN NEWVANE TECH CO LTD

Intelligent substation safety measure checking method and system

The invention discloses an intelligent substation safety measure checking method and system, and the method comprises the steps: obtaining a secondary system topological structure, equipment information and historical safety measure ticket data of a substation, and constructing a quaternary knowledge graph; according to the quaternary knowledge graph, extracting multi-modal features of the maintenance task and identifying the type of a maintenance scene by combining a memory guide reflection decision reasoning mechanism, optimizing a rule reasoning process through a distributed guide local search algorithm, and generating an optimal safety measure operation set for a specific maintenance scene; automatically identifying a correlation loop and determining a minimum safety isolation range through a memory guide decision reasoning mechanism, dynamically generating a minimum safety operation set according to the real-time state of the equipment, and adaptively adjusting operation steps; and an operation dependency relationship model is constructed in combination with unwrapping variational multi-graph representation learning and a distributed guide local search algorithm, and operation sequence compliance verification, risk level assessment and dynamic visual early warning are realized. According to the invention, accurate formulation, dynamic adjustment and risk early warning of safety measures of the intelligent substation are realized.
Owner:GUIZHOU ANRONG TECH DEV CO LTD +2

N-1 safety criterion-based topology planning method for composite ring current collection system of offshore wind plant

An offshore wind power plant composite ring current collection system topology planning method based on an N-1 safety criterion comprises the following steps that S1, wind power plant basic data including wind turbine and transformer substation node coordinates, wind turbine rated power, cable electrical parameters and the like are obtained; s2, generating a candidate cable set and a cable cross avoidance constraint pair set based on the basic data; s3, a scene set containing a normal scene and all single cable fault scenes is constructed, an optimization model with the minimum total cost of the whole life cycle as the target is established, and cable construction / operation variables and direct current power flow power balance, node degrees and cable cross avoidance constraints are integrated; s4, solving the model to obtain an initial topology scheme; and S5, carrying out full fault set N-1 security verification on the initial scheme, and bringing a violation scene into a fault set to resolve until the scheme meets an N-1 criterion. According to the method, through non-predefined topological optimization and planning, reliability and economical efficiency are taken into consideration, calculation complexity is reduced, and the method can be expanded to a cross-substation scene.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

Laboratory environment abnormity self-adaptive linkage control system based on multi-source heterogeneous perception

The invention relates to the field of laboratory environment control, and discloses a laboratory environment abnormity self-adaptive linkage control system based on multi-source heterogeneous perception, which comprises the following steps: when any environment parameter exceeds a set safety threshold value, judging whether comprehensive environment abnormity exists in combination with the numerical value change trend of other types of sensors; based on historical monitoring data and real-time sensing data, constructing a multi-dimensional environment characteristic spectrum, and identifying internal association and change paths between abnormal signals; whether linkage control measures are needed or not is evaluated by analyzing the current anomaly type and the influence area; dynamically generating a linkage control path and a priority sequence according to a system topological structure and an equipment operation state, and determining equipment objects needing to be linked; and according to the generated control path and parameters, the operation state of related equipment is automatically adjusted, active response control for abnormity is completed, and an environment feedback result after control is monitored. The method has the advantage of improving the intelligent control level.
Owner:HELUO INTELLIGENT INTERNET OF THINGS (SHENZHEN) CO LTD

Multi-modal attack identification method fusing BMama and difference to guide trans-attention

PendingCN121333666ABiological modelsSecuring communicationAddress Resolution ProtocolDomain name
The invention discloses a multi-modal attack identification method fusing BMama and difference to guide trans-attention, which comprises the following steps: simulating a false data injection attack, a denial of service attack, an address resolution protocol spoofing attack and a domain name system spoofing attack, collecting physical layer sensor data and network layer flow data, and preprocessing multi-modal data; bMama is constructed to perform dynamic time modeling on multi-modal data, a graph neural network is combined to adversariate a variational auto-encoder, features of a power grid system topology and a communication topology structure are fused, and robustness of potential representation is enhanced through adversarial training; the method comprises the following steps of: guiding feature complementary fusion by using modal difference through a difference guide iteration cross-attention fusion mechanism, improving the capability of distinguishing complex attacks, finally carrying out attack detection and classification on fused modals, and executing end-to-end optimization according to a weighted combination of loss of each part. The method can effectively detect and classify the multi-modal attack in the smart power grid, and enhances the safety and reliability of a complex system.
Owner:SOUTHEAST UNIV

Power distribution network topology state estimation method, electronic equipment, medium and product

The invention discloses a power distribution network topology state estimation method, electronic equipment, a medium and a product. The method comprises the steps of obtaining a topological structure and measurement data of a power system; constructing variable nodes and factor nodes according to the topological structure and the measurement data, and constructing a state-topological joint factor graph model according to the variable nodes, the factor nodes and the topological structure; based on the state-topology joint factor graph model, performing state estimation through a belief propagation algorithm to obtain an estimated value of state variable correction; if the estimated value of the state variable correction meets the convergence condition, correcting the topological state of the switch branch according to the active power and reactive power of the head end of the switch branch in the estimated value of the state variable correction; and outputting an estimation result of the topological state of the switch branch until the on-off state of the switch branch obtained according to the state variable is consistent with the original topological state of the switch branch. According to the method, asynchronous real-time updating of the topological state of the power system can be realized.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD NANJING POWER SUPPLY COMPANY

Equipment anomaly tracing method and system based on digital twinborn and graph neural network

The invention discloses an equipment anomaly tracing method and system based on a digital twinborn and graph neural network, and belongs to the technical field of industrial intelligent operation and maintenance and fault diagnosis. The invention provides an innovative solution integrating digital twin high-fidelity simulation and a graph structure deep learning algorithm, aiming at the technical bottlenecks that the generalization performance of an existing data driving method is insufficient under the conditions of fault sample scarcity and category imbalance and the traceability accuracy of unknown and composite faults is poor. The method comprises the following steps: constructing a high-fidelity digital twin integrating multi-dimensional physical attributes and a system topology structure; based on a fault mode, influence and harmfulness analysis method system, constructing a fault mode library comprising a plurality of single fault modes and composite fault modes, and generating an enhanced training data set with accurate labels through an automatic fault injection mechanism; training a graph neural network model with a multi-level attention mechanism by using the data set so as to learn a propagation rule of a fault in a complex system topology; and finally deploying the model to carry out abnormity traceability analysis on real-time industrial Internet of Things monitoring data. According to the method, the fault diagnosis generalization ability and the positioning precision under the sample imbalance condition are remarkably improved.
Owner:ANHUI DIGITAL INTELLIGENCE PREDICTION TECHNOLOGY CO LTD

Cooperative suppression method for short-circuit current-subsynchronous oscillation of offshore wind power flexible direct current system

The invention provides a collaborative suppression method for short-circuit current-subsynchronous oscillation of an offshore wind power flexible direct current system, and the method comprises the steps: 1, determining a common parameter for a broadband coupling problem: determining the common parameter through a system topological structure and theoretical analysis of offshore wind power which is directly connected to a receiving-end power grid through flexible direct current for the short-circuit current and subsynchronous oscillation problem; 3, an upper optimization layer based on the DDQN outputs an optimal adjustment instruction for the generality parameters according to the system state, a lower execution layer receives the adjustment instruction of the upper layer, a new generality parameter value is obtained and output to a current inner loop controller, and a current inner loop controller is constructed; the current inner loop controller generates a modulation signal to control the output of the converter. According to the invention, the dynamic damping controller is designed to optimize common parameters, so that collaborative suppression of short-circuit current and subsynchronous oscillation is realized.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Intelligent fault diagnosis method and system for photovoltaic system

The invention provides an intelligent fault diagnosis method and system for a photovoltaic system. The method comprises the following steps: collecting multi-source heterogeneous operation parameter data of the photovoltaic system based on an intelligent sensor network and carrying out standardized preprocessing; local feature extraction is carried out on edge nodes, a frequency moment is calculated, data summary aggregation is carried out through a frequency moment optimization algorithm, and a fusion key feature vector set is constructed by using a multi-modal data fusion model; performing anomaly detection based on the normal behavior mode baseline, and generating an abnormal state alarm signal and a preliminary anomaly type indication; constructing a weighted graph model based on a system topological structure, constructing a fault association sub-graph by using an approximate spanning tree algorithm, accurately positioning a fault unit and diagnosing a fault type; and generating and executing a self-healing operation scheme according to the fault diagnosis conclusion. Through the distributed multi-modal data fusion and approximate spanning tree fault positioning technology, rapid and accurate diagnosis and autonomous recovery of the photovoltaic system fault are realized, and the system reliability and the operation efficiency are improved.
Owner:YANCHENG POWER SUPPLY CO STATE GRID JIANGSU ELECTRIC POWER CO +2

Substation switching operation risk pre-control method and system based on deep reinforcement learning

The invention discloses a transformer substation switching operation risk pre-control method and system based on deep reinforcement learning, and relates to the technical field of power system automation, and the method comprises the steps: collecting transformer substation equipment data in real time, processing the collected data, generating a standardized time series data set, building a system topology structure represented by multiple graphs based on the processed data, and carrying out the pre-control of the transformer substation switching operation risk. Integrating dynamic characteristics, based on a system topological structure, generating a switching operation decision sequence, dynamically adjusting a risk boundary threshold, based on a real-time system state, evaluating the security of the decision sequence, intercepting operations which do not conform to a security boundary, performing reward attribution on contributions of operation sequence steps, and constructing a digital twin environment; the model performance is improved through interactive calibration of real data and simulation data. According to the substation switching operation risk pre-control method based on deep reinforcement learning, high-precision risk prediction is realized, the early warning time is sufficient, and the operation sequence is optimized, so that the safety of substation switching operation is remarkably improved.
Owner:GUIZHOU POWER GRID CO LTD

Offshore wind plant current collection network topology optimization method based on improved grey wolf optimization algorithm

The invention provides an offshore wind plant current collection network topology optimization method based on an improved grey wolf optimization algorithm, and the method comprises the steps: S1, obtaining basic data of an offshore wind plant, initializing the grey wolf algorithm, and generating an initial solution set; s2, adopting polar coordinates and a minimum spanning tree to optimize and expand the initial solution set; s3, optimizing a connection mode in each group; s4, executing the optimal connection of each group of fan combination; s5, performing optimal solution set exploration on the grey wolf algorithm by adopting an operator; s6, repeatedly executing until a preset maximum number of iterations is reached, and generating a topology model of the current collection system of the offshore wind plant; the method can improve the initial solution quality and the convergence efficiency, gives consideration to the global search capability and the local optimization precision, and achieves the quick and effective processing of geometric constraints.
Owner:POWERCHINA ZHONGNAN ENG

Urban-level source website plant sewage integrated real-time regulation and control system, computer equipment and storage medium

The invention discloses an urban-level source website plant sewage integrated real-time regulation and control system, computer equipment and a storage medium, and the system comprises a topological structure construction module which firstly obtains the geographic position information of a sewage source, a pump station, a pipe network and a sewage treatment plant, and constructs a system topological structure; the real-time data acquisition and transmission module deploys sensors at an inlet and an outlet of a water pump to acquire original parameters based on the topological structure, and stores the original parameters as real-time data associated with space coordinates of the water pump; the water pump regulation and control parameter generation module calls real-time data and historical data, extracts features to construct a data set, generates a rotating speed instruction through algorithm analysis, and feeds back water pump operation state data after the instruction is executed; and the partition regulation and control execution module analyzes the overall discharge trend based on the topological hierarchical relationship, performs space-time correlation matching on the water pump operation state data and the regional real-time data, and determines the regional regulation and control priority. And the urban sewage transmission and treatment efficiency, safety and resource utilization rate are effectively improved.
Owner:YANGTZE ECOLOGY & ENVIRONMENT CO LTD

MMC-CLCC novel DC power transmission system coordination control method

The invention relates to an MMC-CLCC novel DC power transmission system coordination control method, and belongs to the technical field of hybrid DC power transmission. The method comprises the following steps: establishing an MMC-CLCC hybrid DC power transmission system topology architecture, determining an optimal proportion of full-bridge and half-bridge sub-modules according to requirements of system DC voltage and the like, and determining a control strategy during steady-state operation; analyzing the dynamic process of the system under the alternating current fault of the receiving end, and clarifying the power operation characteristics of the CLCC; designing a calculation process of direct current, active power and reactive power operation limits of the inverter station under multi-condition constraints, and constructing a safe operation domain of the inverter station; and proposing a CLCC turn-off angle adjustment strategy based on reactive sensitivity constraint and an MMC coordination strategy based on maximum power transmission. The method can provide support for the receiving-end AC system during the fault period of the receiving-end power grid, guarantees the DC power transmission capability to the greatest extent, and is suitable for a large-scale new energy cross-regional power transmission scene.
Owner:NORTHEAST DIANLI UNIVERSITY

Crude oil coagulation risk optimization method based on well-station-oil depot coupling simulation

The invention provides a well-station-oil depot coupling simulation-based crude oil coagulation risk optimization method, which comprises the following steps of: firstly, designing a well-station-oil depot pipe network system topological structure, analyzing a pipe network structure, and numbering wells, stations, oil depots and pipelines to obtain the numbers of an upstream pipeline and a downstream pipeline of each pipeline; then, a well-station-oil depot pipe network system is disassembled into a node + pipeline form, each pipeline is dispersed into a plurality of calculation units, and the pipe section length, diameter and dip angle of each calculation unit are obtained; according to the fluid temperature of each wellhead, the fluid entering pressure of each station and a PVT physical property table, assuming the temperature and pressure of all nodes to obtain the average temperature and pressure of each pipe section; and calculating crude oil physical property parameters, crude oil flow parameters, pressure drop and temperature drop parameters of each pipe section by adopting an iterative method to obtain pressure and temperature of all nodes, and finally judging the pipe condensation risk according to the physical property parameters and the pipeline pressure and temperature. The pipe condensation risk can be automatically judged, and the production efficiency and safety are improved.
Owner:CHANGZHOU UNIV

Method for automatically generating vertical power distribution system diagram based on BIM (Building Information Modeling) in forward design

The invention provides a method for automatically generating a vertical power distribution system diagram based on BIM in forward design, and relates to the technical field of building electrical, comprising the following steps: performing intelligent analysis on a building BIM three-dimensional model of forward design, and accurately identifying electrical professional components; key data of the distribution boxes are extracted, and a three-level electrical system topology network of a total distribution cabinet, layer distribution boxes and terminal distribution boxes is constructed; standardized data are generated through multiple verifications of data formats, logic relations and parameter thresholds; automatic drawing output is achieved in a tiled mode and an aligned mode, and a bidirectional linkage mechanism of a BIM model and a system drawing is established. The method aims at solving the problems that traditional AutoCAD two-dimensional manual drawing is low in efficiency, disordered in version management, lack of three-dimensional space expression and insufficient in design accuracy.
Owner:CHINA MACHINERY INT ENG DESIGN & RES INST

Current collection system topology optimization method and device based on variable weight minimum spanning tree

The invention provides a power collection system topology optimization method and device based on a variable weight minimum spanning tree, and relates to the technical field of offshore wind power topology optimization. The method comprises the following steps: grouping a plurality of fans based on the angle difference among the plurality of fans according to the position information of the offshore booster station to obtain a plurality of fan sets; a Delaunay triangulation method is adopted to construct a reference grid connecting line of each fan set; and based on the reference grid connection line of each fan set, generating the optimal topology of the to-be-processed offshore current collection system based on a variable weight minimum spanning tree algorithm. According to the method, the grouping clustering method, the Delaunay triangulation method and the variable weight minimum spanning tree algorithm are combined, and the topology design of the offshore wind plant current collection system is efficiently, economically and rapidly achieved. According to the invention, topological connection and cable specification type selection can be optimized synchronously, and a global optimal solution is sought between the cable path length and the type cost difference caused by the change of the current-carrying capacity, so that the fine control of the overall cost of the current collection system is realized.
Owner:HUANENG OFFSHORE WIND POWER SCI & TECH RES CO LTD +1

Fault analysis method and system based on label propagation algorithm

The invention relates to the technical field of data processing, and discloses a fault analysis method and system based on a label propagation algorithm. The method comprises the following steps: acquiring operation state data through a monitoring equipment network, extracting the data to obtain a system topology data set, performing label propagation fault analysis on the system topology data set to obtain node fault information, and performing fault influence weight analysis on each node based on the node fault information to obtain a maintenance priority, and inputting the influence weight data into the graph neural network for coping strategy analysis to obtain a target processing strategy. According to the invention, the efficiency of fault propagation analysis and the accuracy of decision making are improved.
Owner:TIANJIN JINHANG COMP TECH RES INST

Abnormal data identification and cleaning method for network security data set of thermal power plant production monitoring system

The invention relates to the technical field of thermal power plant abnormal data processing, in particular to a thermal power plant production monitoring system network security data set abnormal data identification and cleaning method, which comprises the following steps: mapping a spatial-temporal feature vector to a preset thermal power plant multi-level causal graph to obtain a data causal graph; performing information propagation and node updating on the data causal graph, and calculating an abnormal score of each node in a preset thermal power plant multilevel causal graph; identifying abnormal data according to the abnormal score and the network security data set; and cleaning the abnormal data according to the abnormal type and a preset data cleaning strategy. According to the method, correlation modeling of data on time and a system topological structure is realized through a multi-level cause and effect graph; an abnormal score is calculated through information spreading and node updating, and an abnormal event in the network security data can be accurately identified; the abnormal data is cleaned based on the preset data cleaning strategy, redundant, wrong and abnormal data can be effectively removed, and meanwhile key risk information is reserved.
Owner:HUANENG POWER INT INC +1

Energy storage system, control method, storage medium and program product

The invention provides an energy storage system, a control method, a storage medium, a program and a vehicle, and relates to the field of electric power. Comprising a lithium battery energy storage cluster and a sodium battery energy storage cluster; and the lithium battery energy storage cluster and the sodium battery energy storage cluster are bridged between the positive direct current bus and the negative direct current bus. According to the invention, the full-range coverage of the energy storage system from an energy type to a power type is realized, and the network construction capability of the energy storage system based on the MMC system topology is improved. The superimposed current flowing through the energy storage cluster is reduced, the cycle life of the energy storage medium in the energy storage cluster is prolonged, and the service life of the whole system is indirectly prolonged. The voltage stress of a single sub energy storage module in the energy storage cluster is reduced, the network construction capability of the whole system is guaranteed, and the reliability and stability of the whole system are improved.
Owner:BYD CO LTD

Fault analysis method based on power network equation and related system

The invention belongs to the field of short-circuit current calculation, and discloses a fault analysis method based on a power network equation and a related system.Unified modeling of the overall structure of a power system is achieved by obtaining bus information of the power system and constructing a system topological relation model, and the fault analysis accuracy is improved. The adaptation difficulty caused by different system scales and different wiring modes is avoided, and the universality and the expandability of the method are improved; according to the method, an automatic processing mechanism is introduced into the calculation and decomposition of the admittance matrix, so that the positive sequence admittance matrix, the negative sequence admittance matrix and the zero sequence admittance matrix of the power system can be quickly obtained, manual derivation and gradual simplification processes are reduced, the probability of analysis errors is reduced, and the stability of a calculation result is improved; a three-sequence network equation is uniformly adopted in fault calculation to solve a framework, and a direct coupling relation between an admittance matrix and a short circuit operation condition is utilized, so that key to-be-solved quantities such as fault current and voltage can be quickly and accurately obtained, the calculation process is remarkably shortened, and the analysis efficiency is improved.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Medium-voltage chain type energy storage system topology and control method thereof

The invention provides a medium-voltage chain type energy storage system topology and a control method thereof, and relates to the technical field of power system electric energy quality control and new energy grid connection. The method has a sag supporting function and can be used for a medium-voltage power distribution network. The medium-voltage chain type energy storage system topologically integrates a three-phase parallel side chain type STATCOM (static synchronous compensator), a three-phase series side chain type STATCOM and an energy storage device, and comprises a transformer secondary winding in triangular connection. The three-phase parallel side chained STATCOM adopts positive and negative sequence voltage and current double-loop control, the three-phase series side chained STATCOM adopts an interphase direct-current voltage equalizing strategy of zero-sequence component injection through an angle connection winding, and the chained STATCOMs on the two sides both adopt a network construction type control method. The parallel side chain type STATCOM, the series side chain type STATCOM, the energy storage device and the triangular connection secondary winding are integrated, and a network construction type control strategy is combined, so that the operation stability and the electric energy quality of the system in a medium-voltage scene are improved, and a grid-connected point sag support function and direct-current voltage balance control of the chain type device are realized.
Owner:WUHAN UNIV +1

Harmonic stability analysis method and device, computer equipment and storage medium

The invention relates to a harmonic stability analysis method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring equipment data of a target inverter and system operation data of a power system; the target inverter comprises a network-following type inverter and a network-constructing type inverter, and the system operation data comprises power transmission line parameters and system topology data; constructing each equivalent model in the power system based on the equipment data of the target inverter and the parameters of the power transmission line; processing each equivalent model according to system topology data to obtain a node admittance matrix, and determining a target inherent mode corresponding to the power system based on the node admittance matrix and variable parameters of the power system; and evaluating the power system based on the attenuation coefficient of the target inherent mode to obtain an evaluation result corresponding to the harmonic stability of the power system. By adopting the method, a complex power system can be simplified, the harmonic stability of the system is quantified, the change trend of the harmonic of the system is directly judged, and the accuracy is improved.
Owner:SHENZHEN POWER SUPPLY BUREAU

Health degree monitoring method of server storage system

The invention relates to the technical field of computers, and discloses a health degree monitoring method for a server storage system, and the method comprises the steps: collecting a multi-source heterogeneous operation index; constructing a dynamic causal inference graph based on system topology and driving specifications; an anti-factual reasoning algorithm is adopted to trace an abnormal propagation path so as to identify a root cause; performing mode matching in combination with a historical fault case library, and calculating a comprehensive health degree score of the storage unit; and triggering grading early warning according to the score. According to the invention, through explicit modeling of the physical and logic dependency relationship and fusion of causal reasoning and historical experience, the fault positioning accuracy and early warning effectiveness are significantly improved, and the operation and maintenance noise is reduced.
Owner:SHANGHAI ZHIZHONGLIAN INTELLIGENT TERMINAL CO LTD

Method and system for guaranteeing full-period operation and maintenance of direct current system

The invention discloses a full-period operation and maintenance guarantee method and system for a direct current system, and the method comprises the steps: collecting system state data in real time through a multi-source sensor network, and carrying out the synchronization and normalization processing, and then generating a standardized time series data set; utilizing the pre-trained fault prediction neural network model to carry out probabilistic evaluation on future fault risks; when the risk exceeds a threshold value, an isolation decision engine is triggered to generate an optimal isolation instruction according to system topology and a real-time state, and a solid-state switch and a mechanical mechanism in the intelligent execution unit cooperate to complete millisecond-level rapid isolation; after isolation, a closed-loop feedback module collects steady-state parameters and compares the steady-state parameters with expected values, and online self-adaptively optimizes a prediction model and decision parameters; during normal operation of the system, the preventive maintenance module automatically generates a digital list based on the equipment health score. According to the method, full-period intelligent operation and maintenance of the direct current system from passive response to active prediction, automatic disposal and continuous optimization are realized, and the reliability and the safety of the system are remarkably improved.
Owner:MAINTENANCE CO STATE GRID QINGHAI ELECTRIC POWER +1

Robust scheduling method, device and equipment for thermal power coupling compressed air energy storage system

The invention relates to the technical field of compressed air energy storage, in particular to a thermal power coupling compressed air energy storage system robust scheduling method, device and equipment, and the method comprises the steps: constructing an operation model of each subsystem in a topological structure of the thermal power coupling compressed air energy storage system; a comprehensive operation model of the whole thermal power coupling compressed air energy storage system is established based on the operation model of each subsystem, thermal power resources can be utilized to the maximum extent, the energy storage efficiency is improved, the comprehensive model serves as a thermoelectric system hub, a power flow model on the power grid side and a heat supply network model on the heat supply network side are combined, an optimal scheduling model is established, and the energy storage efficiency is improved. A new energy output fuzzy set is obtained to cope with uncertain factors in actual operation, fuzzy set parameters are set according to actual data of a power grid in a target region, and the parameters are input into an optimal scheduling model to output an optimal scheduling strategy, so that the system operation cost is effectively reduced, and the system performance is improved. And the adaptability to new energy fluctuation and the risk management capability are enhanced.
Owner:安徽华赛能源科技股份有限公司 +2

Distributed isolator operating state centralized alarm system

The present application relates to the technical field of power equipment state monitoring and centralized alarm, in particular to a distributed disconnecting switch operation state centralized alarm system. The system receives state events and operation command records uploaded by the distributed disconnecting switch through the centralized alarm processing end, generates aligned state sequences of the same operation process according to the event time, message sequence and the last trusted state; obtains state transition residuals through the software state machine containing stable split position, stable closed position and transition state, and generates topological consistency residuals in combination with the one-time system topological constraint relationship, and forms time consistency residuals according to the command issuing time, the first variable position time and the final stable state time. The system can distinguish the real disconnecting switch operation abnormality from the data abnormality caused by message disorder, delay and jitter, and improve the reliability of centralized alarm judgment and the consistency of alarm object positioning.
Owner:FUJIAN HUANENG ELECTRIC CO LTD

Off-network ReP2A integrated system topology capacity collaborative planning method

The invention provides an off-grid ReP2A integrated system topology capacity collaborative planning method, and relates to the technical field of renewable energy source hydrogen production and synthesis ammonia, and the method comprises the steps: constructing a mixed integer second-order cone programming model covering a power network, energy storage, hydrogen production, hydrogen storage, hydrogen transmission and synthesis ammonia full-chain coupling constraint; wherein the mixed integer second-order cone programming model takes the minimum annual average comprehensive cost of the system as a target to collaboratively optimize equipment capacity configuration, power transmission and hydrogen transmission network topology and a system operation strategy; and solving the mixed integer second-order cone programming model by adopting a branch and bound Benders decomposition algorithm, and outputting a programming construction scheme. The scheme can solve the problems of high comprehensive cost and low operation efficiency of the system.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY +1

Implementation method of large-scale phased array simulation instrument

The invention discloses an implementation method of a large-scale phased array simulation instrument, which comprises the step of designing a signal processing module to be matched with a 10-gigabit network interface for use, so that a single camera-controlled simulation instrument realizes the simulation of thousands of array scales on the premise of 64 physical ports. Through an innovative signal processing architecture and a high-speed data interface technology, the bottleneck that a traditional phased array simulation instrument depends on hardware stacking is successfully broken through. Compared with a traditional method that a large-scale array can be simulated only by adding physical ports or complex cascading of multiple devices, the method has the advantages that the leap of efficiently simulating thousands of array element scales through a single integrated device is achieved, the hardware cost of system construction is greatly reduced, the system topological structure is fundamentally simplified, and the system performance is improved. The problems of complex wiring and synchronization are avoided, so that an efficient and flexible solution is provided for large-scale array simulation required by the frontier technical fields of satellite communication, communication and inductance integration and the like with higher cost performance and reliability.
Owner:CHENGDU KSW TECH

Implementation method of large-scale phased array simulation instrument

The application discloses a kind of implementation methods of large-scale phased array simulation instrument, including by designing signal processing module and gigabit network interface cooperation use, make single camera control simulation instrument gauge realize the simulation of thousands of array scale under the premise of 64 physical ports.The application breaks through the bottleneck of traditional phased array simulation instrument relying on hardware stacking by innovative signal processing architecture and high-speed data interface technology.Compared with the scheme that traditional method needs to simulate large-scale array by increasing physical port or complex cascade of multiple devices, the application realizes the leap of efficiently simulating thousands of array elements scale with single integrated device, which not only greatly reduces the hardware cost of system construction, but also fundamentally simplifies the system topology, avoids complex wiring and synchronization problems, thereby providing an efficient and flexible solution for large-scale array simulation required by satellite communication, sensing integration and other frontier technical fields with higher cost performance and reliability.
Owner:CHENGDU KSW TECH

Method for automatically generating vertical power distribution system diagram based on BIM in forward design

The application provides a method for automatically generating a vertical power distribution system diagram based on BIM in positive design, and relates to the technical field of building electricity, and comprises the following steps: intelligently analyzing a building BIM three-dimensional model of positive design, and accurately identifying electrical professional components; extracting key data of distribution boxes, and constructing a three-level electrical system topology network of'main distribution cabinet -> layer distribution box -> terminal distribution box'; generating standardized data through multiple verifications of data formats, logical relationships and parameter thresholds; automatically drawing through flat and aligned modes, and establishing a two-way linkage mechanism between the BIM model and the system diagram. The application aims to solve the problems of low efficiency, chaotic version management, lack of three-dimensional space expression and insufficient design accuracy of traditional AutoCAD two-dimensional manual drawing.
Owner:CHINA MACHINERY INT ENG DESIGN & RES INST