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1874 results about "SCADA" patented technology

Supervisory Control and Data Acquisition (SCADA) is a control system architecture that uses computers, networked data communications and graphical user interfaces for high-level process supervisory management, but uses other peripheral devices such as programmable logic controller (PLC) and discrete PID controllers to interface with the process plant or machinery. The use of SCADA has been also considered for management and operations of project-driven-process in construction.

Method and apparatus for the creation of personalized supervisory and control data acquisition systems for the management and integration of real-time enterprise-wide applications and systems

A system and method provide for the creation and operation of real-time enterprise-wide, personalize supervisory and control data acquisition systems. Personalized SCADA applications are constructed from a virtual application service and a personal agent framework using simple drag and drop operations or other high level action. The virtual application service includes a communications gateway that communicates with disparate and non-interoperable systems and external field devices to communicate low level time data collected from such systems into the application environment transforming the collected data in a single common data format. The virtual application service includes application cells that receive the reformatted data and process it to provide high level analysis and context, storing the processed data in an object server. The object server provides a unified, hierarchical object model for all of the data received from the underlying devices and systems. The virtual application service communicates with personal agent frameworks containing presentation cells and service agents. The service agents are representative of the virtual application service, and provide the personal agent framework with access to the object server to receive and send data from the object server to the presentation cells. The presentation cells subscribe to the object server's data objects via the service agent. Presentation cell provide a graphical representation and mapping of data objects and hence underlying devices and systems, to allow a user to manage and control such systems.
Owner:EUTECH CYBERNETICS PTE

Layered exchange and control method for real-time monitoring system data by power dispatching

The invention provides a layered exchange and control method for real-time monitoring system data by power dispatching. A CIM/XML (common information module)/(extensible markup language) interface, a CIM/E interface and other models of the electric power subsystems are processed and combined to establish a device model of the large power grid, therefore, perfect interaction of various application data including SCADA (supervisory control and data acquisition) real-time data, WAMS (wide area measurement system) data, EMS (enhanced message service) advanced application data and dynamic security analysis warning information can be realized, and power system control commands among the systems can be smoothly transmitted and executed. A data acquisition and exchange function can support multiple communication protocols, multi-application, multi-type and large amounts of data, satisfy the real-time requirements of all transmission environments, and provide comprehensive multi-scale real-time operation information of the power grid for other application analysis systems. A close integration mode is used to realize application integration and each subsystem and application can be monitored and managed, so a uniform access interface and a man-machine interface can be ensured to provide for each application system.
Owner:CHINA ELECTRIC POWER RES INST +1

Combined wind power prediction method suitable for distributed wind power plant

The invention provides a combined wind power prediction method suitable for a distributed wind power plant. The method comprises the following steps: step 1, acquiring data and pre-processing; step 2, utilizing a training sample set and a prediction sample set which are normalized to build a wind speed prediction model based on a radial basis function neural network and predict the wind speed and variation trend of distribution fans at the next moment; step 3, building a distributed wind power plant area CFD (computational fluid dynamics) model and externally deducing the prediction wind speed of each fan in the plant area according to factors such as the terrain, coarseness and wake current influence of a distributed wind field; step 4, acquiring the power data of an SCADA (supervisory control and data acquisition) system fan of the distributed wind field; and step 5, adopting correlation coefficients. The invention firstly provides a double-layer combined neural network to respectively predict the wind speed and power. Models are respectively built through adopting appropriate efficient neural network types, and improved particle swarm optimization with ideas of 'improvement', 'variation' and 'elimination' is additionally added to optimize the neural network, so that the speed and precision of modeling can be effectively improved, and the decoupling between wind speed and power is realized.
Owner:LIAONING ELECTRIC POWER COMPANY LIMITED POWER SCI RES INSTION +2

Operation and safety monitoring simulation system for power system

The invention relates to an operation and safety monitoring simulation system for a power system, which comprises a power system full digital real-time simulation subsystem used for simulating the operation of a large-scale power system in real time and providing simulation data to other subsystems, a power market simulation subsystem used for simulating and training power market transaction, a PMU / WAMS subsystem used for carrying out real-time dynamic monitoring and analysis on a simulated power system, an SCADA / EMS subsystem used for monitoring and analyzing the simulated power system, a fault information management subsystem used for managing and comprehensively utilizing fault information, a power system dynamic safety assessment and early warning subsystem used for carrying out safety assessment and early warning on the current power system and carrying out safety verification on the operation mode of a future plan, a safety and stability control system performance test subsystem used for testing the performance of a protective relay device, a power system stabilizer (PSS) and other automated equipment as well as a safety and stability control system and equipment, a power system fault diagnosis subsystem used for carrying out on-line diagnosis and intelligent safety alarming on the fault of the simulated power system and providing a dispatching control decision under the fault condition, and a power system recovery control subsystem used for recognizing the state of the fault of the simulated power system, searching and inferring the power supply path of an outage region and providing a power grid recovery control strategy. The system can simulate the operation of a large-scale power grid in real time, and can be used for searching and comprehensively testing the technology and software of various power systems in dispatching, operation, control and other aspects.
Owner:CHINA ELECTRIC POWER RES INST +1

Integrated universal simulation test system and implement method for electric network scheduling and electric quantity collection

The present invention discloses an integrated universal simulation test system for electric network scheduling and electric quantity collection, a telemechanical terminal is connected with a test control device through an instation network, an electrical energy remote terminal is connected with a plurality of electric energy meters. The simulation test system is provided with a portable computer, and has a function of processing the remote measurement, remote signaling, remote control data of an automatic SCADA system and electric energy meter data of a electric quantity collection terminal simultaneously or separately; a specification analysis function of the automatic SCADA system and electric quantity collection system; the specification is an usual specification, or is added with a plug-in card mode. By means of the technical scheme, the system has stable operation and perfect functions; the system is portable and is flexible to be employed; the system has high reliability and well expandability, openness, compatibility, and excellent maintainability and easytouse; it is capable of expanding and modifying the specification expediently, and it is capable of plugging and playing.
Owner:WUHU POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1

Microgrid energy management system and method

The invention discloses a microgrid energy management system which comprises an information collection and data preprocessing unit, a network analysis unit and an energy optimization unit, wherein the information collection and data preprocessing unit performs data mining preprocessing on information, collected by SCADA / PMU mixed measurement, by adopting a CIM model and combining historical section management, the network analysis unit is used for realizing mixed measurement-based microgrid state estimation on the basis of network topology analysis, performing risk analysis and assessment and sensitivity analysis to realize early warning and warning for failure threat, and adopting corresponding precautionary measures or performing emergency control, and the energy optimization unit is used for performing microgrid energy optimization scheduling by combining forecast information and system operation analysis according to the information of the microgrid state estimation. The invention also provides a method which adopts the microgrid energy management system to perform microgrid energy management. The functions of the microgrid energy management system are further perfected, and the system safety, the power supply reliability and the system control accuracy and effectiveness of a microgrid are improved.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

State monitoring and failure diagnosis method for wind generating set variable pitch system

The invention discloses a state monitoring and failure diagnosis method for a wind generating set variable pitch system. The method includes the steps that 1, in data collection, operation parameters related with the operation state of the variable pitch system are extracted from a wind generating set SCADA system; 2, according to feature parameter extraction, a Relief algorithm is utilized for extracting effective feature parameters of the variable pitch system; 3, in data analysis and prediction, historical data during normal operation of the variable pitch system are screened out to establish a health model of a fan and calculate the prediction value of a real-time signal and the difference between an actual output value and the prediction value; 4, according to a diagnosis algorithm, the operation state of the fan is judged according to residual error information transmitted by the step 3, and the main failure reason of the variable pitch system is found according to a corresponding diagnosis rule and the contribution rate of residue errors; 5, according to data storage, real-time data, prediction data and the diagnosis result are stored to facilitate failure analysis at the later period and provided as reference data for modifying the failure diagnosis rule.
Owner:北京中恒博瑞数字电力科技有限公司

Intelligent processing method for warning information of combined power grid

The invention relates to an intelligent processing method for warning information of a combined power grid. The method comprises the following steps: the combination of an internal expert knowledge base and an external rule table, a multilayer-definition and analysis method of inter-signal incidence relation, and a definition method for both the rule table and an auxiliary signal table of ensuring relevance analysis completeness. According to the invention, an expert system principle and a control strategy are adopted to design the internal expert knowledge base so as to perform real-time analysis of various abnormalities and failures of the power grid; the external rule table is used for providing an analysis rule for the relevance of the abnormalities or failures of the power grid and SCADA (Supervisory Control And Data Acquisition) warning, so as to realize the external definition of the rule; the combined reasoning of both the internal expert knowledge base and the external rule table can ensure the completeness and accuracy of the signal analysis to the utmost; and the physical space attribute of signal is defined into such five layers as local station, local interval, local equipment, upper-level equipment and lower-level equipment, and the property of abnormalities or failures of the power grid is described in a multilayer way. Moreover, the auxiliary signal table is added into the external rule definition to ensure the completeness of the relevance signal of a warning analysis system.
Owner:STATE GRID CORP OF CHINA +1

Water supply pipe network leakage management system and establishment method and system application thereof

The invention belongs to the field of water supply pipe network leakage management systems, in particular to a water supply pipe network leakage management system and an establishment method and system application thereof. In the prior art, through DMA (District Metering Area) zone metering, the independent metering and management of a complex pipe network is realized, and common DMA zone meteringhas the problems of high hardware investment, insufficient hardware laying reasonability, extensive leakage management, shortage of leakage economic evaluation system, imperfect data releasing and sharing mechanism. The water supply pipe network leakage management system comprises a pipe network hydraulic model subsystem, an SCADA (Supervisory Control And Data Acquisition) subsystem, a DMA management subsystem, a leakage management subsystem and a water affairs GIS (Geographic Information System) management subsystem. Through the guidance of basic data, an optimal hydraulic model is established, independent metering zone division is guided through the hydraulic model, pipe network hardware laying is guided, the economic benefit of a laying scheme is accurately evaluated, leakage management is reasonably carried out, and multiple pieces of system data can be shared.
Owner:浙江钛合工程技术有限公司

Device and method for detecting and positioning leakage of gas transmission pipeline based on conventional data and sound wave signals

InactiveCN102563361ADetermining the speed of propagationPrecise positioningPipeline systemsData acquisitionGlobal Positioning System
The invention discloses a device and a method for detecting and positioning leakage of a gas transmission pipeline based on conventional data and sound wave signals. The detecting device comprises a sensor group, a field data acquisition processor, a global positioning system (GPS) receiver, a communication network, a central data gathering processor and a monitoring host. The detecting method comprises the following steps of: respectively acquiring sound wave data and traffic, pressure and temperature conventional data of the upstream and the downstream of the pipeline, filtering background noise from the sound wave data by using wavelet transform, respectively identifying a time domain, a frequency domain and time and frequency domain characteristics of the sound wave signals by combining the conventional data to remove external interference and realize leakage signal characteristic extraction, performing leakage positioning by adopting an improved positioning method based on a related analysis method and a GPS synchronous time method, and giving a theoretical installation distance of sound wave sensors according to a propagation model of the sound wave signals. An interface can be established between the conventional data and a field supervisory control and data acquisition (SCADA) system, and only the sound wave sensors are arranged on the upstream and the downstream of the pipeline, so that the invention has the advantages of low investment, high equipment sensitivity and strong adaptability.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Multi-dimensional intelligent remote inspection system for transformer substation

ActiveCN110707823AAvoid silosExtend the cycle of comprehensive inspectionsCircuit arrangementsSustainable buildingsSmart surveillanceEmbedded system
The invention discloses a multi-dimensional intelligent remote inspection system for a transformer substation, which adopts independent networking and receives various operation information of a station end integrated automation system, and is in communication connection with a video center main station to obtain remote view data, remote measurement data, remote control data and remote signaling data; the dispatching center SCADA main station system is in data communication with the station end integrated automation system and receives various kinds of operation information of the station endintegrated automation system; and the video center main station is also in data communication with the dispatching center SCADA master station system to provide real-time video verification for remotecontrol operation of the dispatching center SCADA master station system. According to the invention, a powerful intelligent monitoring and emergency command platform is provided for production linksand security links such as remote control operation and remote equipment inspection of scheduling personnel, field operation and emergency disposal of operation and maintenance personnel and the like,can be suitable for actual application of power production, and ensures safe operation of power grid production.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Pipe burst accident on-line positioning system for urban water supply pipeline network

InactiveCN102174994AThe Innovation of the Location Method of Accident BurstEasy to handleBiological neural network modelsPipeline systemsCommunications systemUrban water supply
The invention belongs to the measurement field of a water supply system. Aiming to fix the position of pipe burst accident point in a water supply network accurately and rapidly, improve the accuracy of positioning, and effectively manage the related data of the operation condition of the water supply pipeline network, the invention adopts the following technical scheme: the pipe burst accident on-line positioning system for an urban water supply pipeline network is composed of a supervisory control and data acquisition system (namely an SCADA system), a data center and a master control computer; the supervisory control and data acquisition system comprises the following parts: 1. a plurality of telemetering remote transmission terminals; and 2. a communication system; the data center comprises a server which is used for monitoring process values and communicating with process hardware; and the server is provided with a database for storing on-line data of the water supply pipeline network, which are monitored according to time sequence. The on-line positioning system provided by the invention is mainly used for determining the position of a pipe burst accident point in the water supply pipeline network.
Owner:TIANJIN UNIV
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