1137 results about "Electric power industry" patented technology

Systems, methods, and apparatus embodiments for electric power grid and network registration and management of active grid elements. Grid elements are transformed into active grid elements 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. Also preferably, messaging 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.

The invention relates to an automatic verification system of a low-voltage current transformer in power industries. The automatic verification system comprises an input-output warehouse connection station, a grid-shaped frame type conveyor line and a feeding and blanking rotor which is connected with the input-output warehouse connection station and the grid-shaped frame type conveyor line, wherein the grid-shaped frame type conveyor line comprises a main verification conveyor line and a reserved verification conveyor line with up and down symmetrical structures, feeding and blanking station modules, appearance inspection station modules, insulation voltage-withstanding testing station modules and error verification station modules are sequentially arranged on the verification conveyor lines, middle return conveyor lines perpendicular to the verification conveyor lines are arranged between the insulation voltage-withstanding testing station modules and the error verification station modules, terminal return conveyor lines are arranged behind the error verification station modules, a conveyor line shared by the main verification conveyor line and the reserved verification conveyor line is a blanking conveyor line, and a labeling sorting station module is arranged at a part, which is close to the feeding and blanking station modules, of the blanking conveyor line; buffer areas are arranged between detection station modules on the verification conveyor lines.

The invention discloses a power load forecasting method based on customer segmentation in power industry. The power load forecasting method comprises: step 1, extracting customer load data and obtaining load sample data; step 2, pre-processing the load sample data; step 3, performing cluster grouping to customer to obtain a plurality of customer groups; step 4, summarizing the load data of the customer groups; step 5, performing load timing sequence forecasting to a single customer group; step 6, summarizing and calculating load forecasting results of the plurality of customer groups; and step 7, evaluating the load forecasting results obtained in the step 6. The power load forecasting method can accurately forecast power load of the customer groups and provides a basis for development and operation of a power system.

The invention discloses a path planning method for the intelligent inspection robot of a substation. The method includes the following steps that: layered characterization is performed on the operating environment of an inspection robot within a substation, and a layered map is created; the electronic text of the work ticket of the substation is analyzed, and work task information is obtained; andoptimal path planning is carried out through comprehensively using the layered map and the work task information. According to the method of the invention, on the basis of a characteristic that the electric power industry pays much attention to safety, constraint conditions such as a maintenance plan and a constraint condition that branch paths in the substation are narrow are comprehensively considered; path planning is performed in advance, and therefore, an inspection area can be avoided reasonably, an equipment inspection sequence can be optimized, and the inspection efficiency and intelligence level of the intelligent inspection robot of the substation can be improved with safety requirements satisfied.

The invention discloses a tellurium copper alloy material for the electric power industry and a method for preparing the same. The method is characterized by comprising the following steps: gradually adding 99.55 to 99.89 weight percent of industrial pure copper after a molten channel of a power-frequency induction furnace is melted; raising the temperature of a copper liquid to between 1,190 and 1,230 DEG C after solid state copper is melted down, and covering the copper liquid with charcoal to keep the temperature; enwrapping 0.1 to 0.4 weight percent of pure tellurium, and pressing the pure tellurium to the bottom of a power-frequency furnace close to a molten channel opening at a furnace temperature of between 1,190 and 1,230 DEG C; adding 0.01 to 0.05 weight percent of microelement into a tellurium copper alloy liquid after 50 to 80 minutes; finishing the smelting of the tellurium copper alloy liquid after 15 to 30 minutes; reducing the furnace temperature to between 1,150 and 1,180 DEG C; pouring the alloy liquid into a graphite crystallizer for crystallization; towing a cast ingot by using the prior method and sawing the cast ingot into short cast ingots with specific lengths; sampling the short cast ingots to test the content; and packaging the short cast ingots into finished products.

The invention discloses a dynamic vulcanized fluoroplastic/fluororubber/silicon rubber thermoplastic elastomer and a preparation method thereof. The thermoplastic elastomer comprises the following raw materials in parts by mass: 10-80 parts of fluoroplastic, 5-80 parts of fluororubber, 5-85 parts of silicone rubber, 1-10 parts of acid acceptor, 1-20 parts of interfacial modifier, 0.1-5 parts of cross-linking agent and 0.1-10 parts of cross-linking aid. The preparation method comprises the following steps of: uniformly mixing the fluoroplastic, the fluororubber, the acid acceptor, the silicon rubber and the interfacial modifier at 175-330 DEG C; and adding the cross-linking agent and the cross-linking aid under a high-speed shear condition to carry out dynamic vulcanization on rubber to obtain the thermoplastic elastomer. The fluoroplastic/fluororubber/silicon rubber thermoplastic elastomer has high mechanical strength, has the characteristics of excellent high-temperature and low-temperature resistance, chemical resistance, oil resistance, capability of repeated processing and the like and can be widely applied to the fields of aerospace industry, automobile industry, information and electronics industry, chemical industry, new energy resources, electric power industry, environmental protection and the like.

The invention relates to the technical field of a power industry electric transmission line overhead conductor. The present invention provides a high conductivity moderately strong heat-resistant aluminum alloy monofilament and a preparation method thereof. The aluminum alloy conductor includes: 0.01-0.1% of Zr, 0.01-0.2% of B, 0.01-0.2% of Si, 0.05-0.3% of Fe, 0.2-0.5% of Mn, 0.01-0.15% of Er and/or 0.01-0.15% of Y, any two or three elements selected from the group consisting of V, Ti and Cr, and the balance being Al and inevitable trace impurities, wherein 0.1-0.15% of V, 0.01-0.05%of Ti, and 0.1-0.15% of Cr are included. The aluminum alloy monofilament prepared by the present invention is high in electrical conductivity, good in heat resistance, and high in tensile strength.

The invention discloses an application of the virtual three-dimensional system of a transformer substation on the basis of an electric power geographic information system (GIS), which belongs to the technical field of the computer software system and comprises the following steps: generating panoramic data, and carrying out panoramic configuration, panoramic display and panoramic interaction. The application of the virtual three-dimensional system of the transformer substation on the basis of the electric power GIS has the beneficial effects that the application capability of the GIS system to the electric power industry is enhanced, and meanwhile, the safety and the normalization of the electric power dangerous operation are improved; the requirement of working staff on operation rehearsal is satisfied; the visualization capability of the equipment and the scene in the electric power GIS is favorable to improve; and the modernized requirement of safe, reliable, high-quality, efficient and economic operation of electric power enterprises and various users thereof on a power grid can be satisfied.

The present invention relates to a corrosion examination and non-destructive examination method for a metal pipeline. The instant electromagnetic technology (TEM) is used to examine the average thickness of the wall of the pipeline under the condition that no dig is performed, no corrosion-prevention layer is damaged and the normal running of the pipeline is not influenced. The method is characterized in that when other conditions are the same, the metal pipeline with different wall thicknesses can have obvious time divisibility on a normalized pulse instant-changing responding curved line. The wall thickness of the measured section of the pipe can be obtained by the indication of the known wall thickness and the method of inversing modeling. The present invention also relates to a corrosion examination and non-destructive examination systematic device for the metal pipeline. A virtual instrument is designed and produced with the TEM examination method for the wall thickness of the metal pipeline; a data collector adopts the instant-changing electromagnetic instrument; the control of the instruments, the data processing and the results expression are realized by the software of the computer, so that the expansion property of the instrument is strengthened, and the renewing speed is accelerated, and the complicate data processing analysis can be performed instantly. The device can be widely used for examining the corrosion of the anti-corrosion heat-preservation pipeline in the industries such as the petroleum industry, the petrochemical industry, the fuel gas industry, the electric power industry, the water supply industry, and the like.

The invention discloses a sulfur hexafluoride gas sample collecting device. The device is provided with a gas picking joint of a fast-inserted pipe, and the appearance of the device is a case body structure provided with an upturning cover; the relative buckling faces of a case body and the upturning cover are provided with a control panel and a display screen respectively; the periphery of the case body is provided with a fast-inserted gas path interface and a power interface; and the case body is provided with a triple valve, an SF6 flow rate electronic controller, a minitype vacuum pump, an electromagnetic valve and an integrated circuit control system inside. The collecting device has the advantages of portable design, full closed sampling, and sample undistortionless, and has the function of controlling the flow rate to precisely set the flow rate so as to be convenient to connect an SF6 gas detector with higher requirements on the flow rate precision. The device completely meets the electric power industry standard of an SF6 gas sampling method for electrical equipment.

The invention relates to electric lubricating grease and a preparation method thereof, and in particular relates to electric lubricating grease used for a terminal in the electric locomotive and power industries and a preparation method thereof. A fatty acid soap-type thickening agent is weighed in proportion and is added into base oil to be mixed, stirring and slow heating are carried out, then the base oil is continuously added, stirring and heating are continuously carried out, and then the base oil is added, and mixing is carried out and homogenizing by virtue of a homogenizer or grinding by virtue of a grinding machine is carried out, thus base ester is obtained; and an anti-oxidation additive, an anti-corrosion additive, an anti-rust additive, a conductive additive and an anti-static additive are sequentially added into the obtained base ester and mixed; and then the mixture is homogenized by virtue of the homogenizer or ground by virtue of the grinding machine; and finally filtering and packaging are carried out to obtain the electric lubricating grease product. The lubricating grease provided by the invention has excellent conductive performance, contact condition of an electric contact is effectively improved, and antiseptic and antirust performances of the electric contact are obviously improved. The electric lubricating grease product can be widely applied to the electric contact of an electric locomotive and a power supply system.

The invention discloses a preparation method for a lubricating oil composition containing ionic liquid, modified nanometer copper powder and graphene. The method comprises the following steps: compounding base oil, a detergent, a dispersant, a preservative, an extreme-pressure antiwear agent, an oiliness agent, an antioxidant, a viscosity index improver, an antirusting agent, a depressant, an antifoamer, the ionic liquid, the modified nanometer copper powder and the graphene so as to obtain the lubricating oil composition containing the ionic liquid, the modified nanometer copper powder and the graphene. The method in the invention has the advantages of simple and practicable production process, small equipment investment and low energy consumption, is pollution-free to the environment and is favorable for popularization and application. The lubricating oil composition prepared by using the method in the invention can be widely applied in the industrial fields of mechanical industry, automobile industry, precision instruments, electric power industry, metallurgy industry, die manufacturing and application industry, iron and steel industry, machine tool industry, etc., and has broad application prospects.

The invention relates to the technical field of electric power industry information web page tamper prevention, in particular to a web page tamper prevention device based on web server cache matching and a method of the device. According to the web page tamper prevention device based on web server cache matching, a feature value of a suspected Trojan program in an IP response message is extracted, whether the feature value is matched with a black list database or not is judged through fuzzy matching, then the feature values of all information of an accessed web page are extracted to be precisely matched with web server cache data, and whether a web page accessed by a client side is tampered or not is judged. Fuzzy matching processing is carried out through a first detection module, the Trojan program and other malicious programs in the web page are detected, precise matching processing is carried out through a second detection module, the feature values of all the information of the accessed web page are compared with the web server cache data, the problem that existing web page tamper detection efficiency is low is solved, the web page can be effectively prevented from being tampered by a blacker, and website safety is greatly improved.

The invention discloses a conductive anticorrosive coating and a preparation method thereof. The conductive anticorrosive coating mainly consists of epoxy resin, an epoxy resin curing agent, a composite conductive filler, a preservative, a reactive diluent, a flame retardant and a mixed solvent. The conductive anticorrosive coating provided by the invention is used for preparing a conductive anticorrosive coating layer on the surface of a workpiece well treated in a spray-coating or brush-coating way, and can be widely applied to metal structural elements such as a grounding grid device in the power industry and an oil storing device in the petrochemical industry to realize the functions of electric conducting, electrostatic conducting, anti-corrosion and the like, and therefore, the metal structural elements are capable of meeting the requirements of use on spot. The preparation process of the coating provided by the invention is simple and easy for realization of industrial production.

The invention discloses a real-time bus across safety zone communication method suitable for power industries, and belongs to the technical field of informatization and automation of electric power systems. According to the real-time bus across safety zone communication method, across safety zone information exchange is accomplished through transit servers and internal nodes. Two transit servers are configured in one safety zone, and the transit servers are used for transmitting and receiving cross-zone messages and transferring the messages to a designated work catalogue, so that the internal nodes can use the messages. The transit servers are arranged at the positions related to an isolating device, the internal nodes in the same safety zone establish a network connection through a switch or a router, and the internal nodes are mainly used for transmitting messages and receiving messages at last. According to the real-time bus across safety zone communication method, data are transmitted through the network isolation device unidirectionally (in the forward direction and in the reverse direction) on the premise that the existing safety zone framework arrangement is guaranteed to be unchanged, and thus safe and stable data communication among different safety zones is achieved finally.

The invention discloses a method for measuring dielectric loss factor and insulation resistance of a power transformer. The method aims at resolving the problem that the existing manual mode for disassembling and assembling connection wires costs time and labor and can easily cause measurement errors even safety hazards due to error wire connection. The method includes high voltage relays, a switching switch, a dielectric loss measurement inverse connection module, a dielectric loss measurement face connection module and an insulation resistance measurement module. The method includes that connecting windings on the same side of the transformer and in short circuit with the corresponding high voltage relays with the number of the high voltage relays corresponding to the turn number of the windings of the transformer, switching the high voltage relays of corresponding windings according to the national power industry standard and the test regulation requirement, switching the high voltage relays that the windings to be measured correspond to to high voltage, switching the high voltage relays that the windings not to be measured correspond to to the ground end and utilizing the switching switch to select corresponding modules. The method is capable of achieving automatic measurement, reducing measurement errors, reducing working intensity and improving working efficiency.

The invention discloses a power line extraction method of an electric transmission line based on on-board LiDAR data. The power line extraction method comprises the steps of carrying out point cloud collecting on an electric transmission line through the on-board LiDAR; carrying out point cloud sampling on cross sections of electric transmission lines of two adjacent pylons; clustering the point clouds sampled from each cross section to obtain the position of the center of each power wiring harness at each cross section; fitting the center of each power wiring harness at each cross section to obtain a central line; and copying and shifting the central line to obtain the power wiring harnesses according to a power line splitting method and line intervals. According to the power line extraction method of the electric transmission line based on the on-board LiDAR data, the point cloud classification is unnecessary in advance, the point clouds collected by the on-board LiDAR are directly processed in a three-dimensional space, and the power lines of multi-loop electric transmission lines of the same pylon can be conveniently and quickly detected and extracted. As the power line extraction method of the electric transmission line based on the on-board LiDAR data having excellent performances, the power line extraction method of the electric transmission line based on the on-board LiDAR data can be widely applied to power industries.