161results about How to "Reduce power outages" patented technology

The outage probability in an under-addressed optical MIMO system may be reduced by configuring an intra-link optical mode mixer to dynamically change the spatial-mode mixing characteristics of the link on a time scale that is faster than the channel coherence time. Provided that the MIMO system employs an FEC code that has a sufficient error-correcting capacity for correcting the amount of errors corresponding to an average state of the MIMO channel, this relatively fast dynamic change tends to reduce the frequency of events during which the number of errors per FEC-encoded block of data exceeds the error-correcting capacity of the FEC code.

A method for reducing outages in a cooperative network comprising measuring a channel gain for each of a plurality of received signals one of the received signals comprising a source signal, executing an algorithm utilizing the channel gain of the source signal and at least one other of the plurality of channel gains to determine a source transmit power value, and transmitting the source transmit power value to the source.

Packaging a hot-swappable server module (server blade) in a computer network appliance with shared, hot-swappable power, network, and management modules to provide highly available computer capacity. Distributing power between hot-swappable modules using single DC input voltage.

The invention provides a detection method for current-carrying capacity of an overhead conductor. The detection method comprises the following steps of: detecting conductor temperature and environment temperature of the overhead conductor to be detected to acquire at least two groups of conductor temperature values and environment temperature values; calculating a functional relation of conductor current and conductor temperature rise according to the conductor temperature values, the environment temperature values and a current value of the overhead conductor; and calculating maximum current-carrying capacity of the detected overhead conductor at set temperature according to the functional relation. According to the technology, data and equipment to be detected are less, the data operation process is simple, the result reliability is high, the detection cost is greatly reduced while the detection accuracy is guaranteed, the maximum current-carrying capacity of the conductor can be quickly and simply detected in a peak load period, unnecessary power failure is reduced, the power transmission capacity of the overhead conductor is improved, and particularly, the detection method has great significance of popularization to a low-voltage power distribution network.

The outage probability in an under-addressed optical MIMO system may be reduced by configuring a spatial-mode coupler at a transmitter and / or a spatial-mode separator at a receiver to dynamically change its spatial-mode configuration on a time scale that is shorter than the channel coherence time. Provided that the MIMO system employs an FEC code that has a sufficient error-correcting capacity for correcting the amount of errors corresponding to an average state of the MIMO channel established between the transmitter and receiver, this relatively fast dynamic change tends to reduce the frequency of events during which the number of errors per FEC-encoded block of data exceeds the error-correcting capacity of the FEC code.

The invention discloses a power equipment image processing method. The method comprises the steps that a power equipment image and a sample image are acquired and processed, wherein processing comprises image preprocessing and image processing, and image processing comprises feature parameter extraction; and feature parameters of the power equipment image and feature parameters of the sample image are compared, and the state of power equipment corresponding to the power equipment image is described according to the comparison result. By use of the method to process the power equipment image, the power equipment image is converted into state description of the power equipment corresponding to the power equipment image, therefore, information valuable to power equipment monitoring is effectively extracted through computing equipment, labor cost and the storage space demand are greatly lowered, and monitoring efficiency and accuracy are greatly improved.

The invention relates to a mobile device for detecting local discharging of electric equipment of a substation, and a positioning method. The detecting device is mounted on mobile equipment and is composed of an antenna matrix, an ultra high-speed data sampling unit and a data processing unit. The positioning method comprises the following steps: using an ultra-high frequency (UHF) antenna to receive an ultra-high frequency electromagnetic wave generated by to-be-detected local discharging of the electric equipment of the substation; after performing amplifying and filtering treatment on the ultra-high frequency electromagnetic wave by a prepositioned broadband amplifier, synchronously sampling by virtue of the ultra high-speed data sampling unit, sending to the data processing unit and performing data processing on a four-way signal; and displaying the position of a local discharging source and early warning information on a display screen. The detecting device and positioning method provided by the invention can be used for thoroughly detecting and positioning the local discharging of all equipment in the substation; the detecting cost of the local discharging of the equipment in the substation is greatly lowered; the defects can be early found while the substation is subjected to routing inspection; power-off accidents are reduced, thereby increasing the intelligent level of the substation; and the detecting device and the positioning method have the characteristics of low cost and high efficiency and can quickly detect and position the local discharging of the whole to-be-detected substation.

A parameter for transmission by an access point is determined in a manner that facilitates access terminal mobility. For example, a cell reselection parameter and / or a handover parameter may be determined based on the quality of a signal from one access point (e.g., a macro cell) at another access point (e.g., a femto cell). In addition, a cell reselection parameter and / or a handover parameter may be determined based on the proximity of one access point (e.g., a femto cell) to another access point (e.g., a macro cell). Through the use of these techniques, a parameter may be determined in a manner that mitigates access terminal ping-ponging between access points and that mitigates outages that may otherwise occur as a result of an access terminal remaining on an access point too long.

The present invention implements computing systems in a configuration to reduce downtime. The computing systems are configured, without implementing a hot stand-by or mirrored configuration, to handle mission critical applications without failing. A user may determine the benefit of implementing the configuration over traditional methods, and may forecast estimated revenues generated from business operations in the configuration.

The invention relates to a distribution automation joint debugging platform for FTU terminal equipment. The distribution automation joint debugging platform for the FTU terminal equipment is characterized in that voltage and current output of an experimental device is spliced in the input end of a terminal strip; an FTU terminal is connected with the opposite end of the terminal strip through a special connecting wire; a remote control test board on a tester is connected with the input end of the terminal strip which is located in the same side of the voltage and current output; the FTU terminal equipment is provided with a network cable and a special connecting wire, the network cable led from the FTU terminal is in communication connection with a special debugging channel in a distribution automation host station system, and the test port in the FTU terminal is spliced in the end opposite to the end of the remote control test board connected with the terminal strip through a special connecting wire. The distribution automation joint debugging platform for the FTU terminal equipment plays roles of automatically locating a fault, automatically isolating a fault section, automatically restoring power supply for non-fault sections, automatically restoring a power supply mode before supplying power and the like, achieves topology analysis, load transfer, load forecasting, network reconstruction and other advanced applications, has real-time performance, authenticity and reliability and needs to precisely test and jointly debug each FTU terminal.

The invention discloses a quick detecting device and method for defective electrical equipment of a transformer substation. The quick detecting device is composed of a plurality of electric wave sensors, an ultra high-speed data sampling unit and a data processing unit. The quick detecting method includes that the electric wave sensors receive electric signals generated from insulating defective discharging of the defective electrical equipment of the transformer substation to be detected; after amplified and filtered by front wide-and amplifiers, the electric signals are synchronously collected by the ultra high-speed data sampling unit and then sent to the data processing unit for data processing to four-way signals; the position of a discharging source and warning information are displayed on a display screen. By the use of the quick detecting device and method, detection and planar location of the discharging source of detective equipment in the transformer substation are facilitated, so that cost for discharge detection of the defective equipment of the transformer substation is lowered, defects are found in advance when the transformer substation equipment is under detection, power failures rarely occur, and intelligent degree of the transformer substation is improved. The quick detecting device and method has the advantages that the discharge detection of the whole transformer substation to be detected is achieved in the quick-positioning, low-cost and high-efficiency manner.

The invention relates to a method for evaluating and calculating information security risks of distribution automation terminal equipment, and its technical characteristics include the following steps: Step 1. Using the analytic hierarchy process to conduct a comprehensive analysis of the software and hardware development and deployment environment and the operation and maintenance environment of the distribution terminal Information security risk analysis; step 2, building an experimental platform for power distribution terminal information security testing; step 3, conducting power distribution terminal information security risk testing and finding out power distribution terminal information security vulnerabilities; The calculation method quantifies the risk value of power distribution terminal equipment and judges the possible impact on the enterprise after the security vulnerability is exploited. The invention can provide a basic platform for the overall information security research of distribution automation terminal equipment, and can be used to guide the construction of information security protection capabilities of distribution automation systems, avoid system abnormal failures caused by hacker attacks, and improve the safe and reliable operation of distribution automation systems Level.

The invention relates to a high-voltage isolating switch overheating state predicting method based on a PSO-SVM. Multiple factors influencing heating of an isolating switch like the load current, therated current, the environment temperature, the pollution grade, the latest overhauling year and the running state of the isolating switch are considered, an artificial intelligence algorithm of the particle swarm optimization support vector machine is adopted, and a high-voltage isolating switch overheating state predicting model is built. During application, original data or a testing sample during running of the high-voltage isolating switch is input to the built prediction model, the isolating switch state is predicted so that the heating state of the high-voltage isolating switch can be accurately predicted, a targeted overhauling strategy is timely taken aiming at the running state of the isolating switch, and the occurrence of power failure accidents is reduced.

The invention belongs to the technical field of a robot and discloses an intelligent inspection robot control system and method based on a high voltage transmission line. The system is provided with apower module, a defect detection module, a controller, a communication module, an electromagnetic protection module and a sensing system module. The system is advantaged in that a wide range of rapidinspection and partial fineness inspection on the line fault can be performed, the fault point location, the nature and severity of the fault are quickly determined, the reliable decision basis is provided for organization and command of accident repair and rescue, the novel Internet of Things and the Internet+technology can be utilized to realize functions of digital recording in the whole inspection process, online intelligent diagnosis of the fault and self-learning of a background large database, and the operation status of the transmission line can be effectively controlled. The system is advantaged in that maintenance tools carried by the robot can further perform real-time processing of the discovered fault, simple faults can be eliminated in real time, complex faults can be handled after easy handling, and economic loss is reduced.

The invention discloses a wired-loop-based entire-station monitoring and positioning system for the partial discharge of a transformer substation. The system comprises a high-frequency signal shielding bus. The two ends of the high-frequency signal shielding bus are connected to a dual-channel data acquisition and control unit respectively. N sensing terminals are connected in parallel with the high-frequency signal shielding bus through a three-way connecting piece. The system has the characteristics of high sensitivity and high anti-interference capability in terms of partial discharge detection, and the partial discharge of a plurality of pieces of power equipment of the transformer substation is synchronously monitored, so that the online monitoring cost of the partial discharge of the equipment of the transformer substation is greatly lowered, the mounting and use of online partial discharge monitoring equipment for a plurality of transformer substations is facilitated, shortcomings can be discovered in advance, power failure accidents are reduced, and the intellectualization level of the transformer substation is improved.

The invention provides a concealed pipeline visualization system and method based on augmented reality technology. It can merge the buried paths, laying methods and various kinds of information of various municipal and electric power engineering, such as strong and weak electricity, water supply and drainage, natural gas, communication lines and so on, into the real environment in a visual way, and realize the real-time interaction between the staff and the visual information. When the worker puts on the display device, the real object can be tracked in real time and presented on the display device at the same time with the virtual scene. When the user moves, the relationship between the real object and the virtual object in the position and direction can be updated in real time. AR technology can greatly shorten the preparatory work of the construction, shorten the construction period, reduce the power outage, water outage, communication interruption time and labor costs, and effectively avoid the risk of damage to various types of underground municipal pipe network equipment, so that intangible economic benefits are enormous.

The invention relates to the technical field of aluminum electrolysis, and particularly relates to an electrolytic tank electric aluminum bus and aluminum soft tape damage re-welding repairing method. The electric heat-release welding method comprises the following steps of: 1) selection of crucible materials; 2) preparation of a crucible die; 3) preparation of a welding die; 4) preparation of a pouring piece and a blocking piece; and 5) welding. The method provided by the invention designs a 200kA electrolytic tank aluminum bus and soft band electric welding die by use of the heat-release welding principle and successfully performs electric welding. Through the method provided by the invention, the electrolytic tank aluminum bus and soft band electric welding can be performed for an electrolytic tank by a heat-release welding mode without cutting power, and the power cut of the electrolytic tank is not required, thus the cost can be saved, and the repairing cost is reduced.

The invention relates to a distribution network maintenance time optimization method and system. Related data of each feeder device in the distribution network are acquired to generate a distributionnetwork maintenance scheme; and the distribution network maintenance scheme is set as a chromosome, a genetic algorithm is adopted to solve the pre-built distribution network state maintenance model to obtain the optimal maintenance time of each feeder, wherein the related data of each feeder device in the distribution network comprise the health index of a device on each feeder of the distribution network. The technical scheme provided in the invention solves the problem of large deviation of reliability prediction evaluation decision making under a small time scale, and can also guide and support the distribution network state maintenance work with a feeder, a substation or an associated device combined, and leap of a scientific, quantitative and economic maintenance technology is realized.

The outage probability in an under-addressed optical MIMO system may be reduced by configuring an intra-link optical mode mixer to dynamically change the spatial-mode mixing characteristics of the link on a time scale that is faster than the channel coherence time. Provided that the MIMO system employs an FEC code that has a sufficient error-correcting capacity for correcting the amount of errors corresponding to an average state of the MIMO channel, this relatively fast dynamic change tends to reduce the frequency of events during which the number of errors per FEC-encoded block of data exceeds the error-correcting capacity of the FEC code.

The invention provides a 220 KV and below 220 KV electric transmission line insulator electrification water washing method. The method mainly comprises the steps of setting the water resistivity of water and adjusting pressure of a hydraulic giant; judging the wind direction and wind power on a tower and adjusting the length of a water column according to the wind direction and the wind power; placing the hydraulic giant at a given position and washing triphase insulators of 220 KV and below 220 KV electric transmission lines in sequence from bottom to top; washing insulator chains on the downwind side firstly and then washing insulator chains on the weather side during insulator chain washing, and washing piece by piece from bottom to top and washing by starting from the wire side in sequence for suspension insulator chains; and judging whether phenomena of sewage dripping and partial arcing striking appear for washed insulators, and rewashing corresponding insulators if the phenomena appear. The 220 KV and below 220 KV electric transmission line insulator electrification water washing method enables electrification water washing to be achievable for most of the 220 KV and below 220 KV electric transmission lines, line outrage is reduced, pollution flashover is avoided, safety and stability of power grids are ensured, and good economic and social benefits are created.

The invention relates to a local smart feeder automation no-delay stage difference coordination method and application. The advantage of local insulation of relay protection and the advantage of self-recovery of feeder automation are combined, when a circuit breaks down, preferentially, local insulation is conducted through the relay protection function of a feeder terminal, and thus the outage range is reduced to the maximum degree. If transformer substation protection time has a low time-delay margin or does not have a time-delay margin, it is difficult for a transformer substation and the feeder terminal to form delay stage difference coordination to ensure protection selectivity. At this time, through a local smart failure processing mode of the feeder terminal, local failure processing can be completed, no in-station power supply is influenced, and in-station protection simply serves as backup protection of feeder protection. If instant quick break protection is applied to the transformer substation, the portion where a first-stage section switch is located needs to be protected, and the coordination is formed through a protection range.

The invention discloses a smart flash bird repelling device. The smart flash bird repelling device comprises a main controller, a solar charging unit, a detection unit and a bird repelling unit, wherein the solar charging unit, the detection unit and the bird repelling unit are electrically connected with the main controller respectively; the solar charging unit comprises a solar panel, a charging-discharging management module, a storage battery and a power supply control module which are electrically connected in sequence; the power supply control module is electrically connected with the main controller and the detection unit in sequence; the charging-discharging management module is electrically connected with the bird repelling unit. An external power supply is not required, and solar energy is used for supplying power, so that the environment is protected, and energy is saved; a microwave radar and a sound pick-up are used for actively detecting birds close to a power transmission line, and the birds are repelled by using highlight strobe, ultrasonic waves and the like; an imported single-chip microcomputer design is adopted, and the technologies of radar detection, highlight strobe, ultrasonic waves and the like are integrated. The accidents of power failure and trip-out of a power grid caused by bird damage are effectively reduced; the smart flash bird repelling device is mainly suitable for repelling birds at the places of power transmission lines, transformer substations, farmlands, gardens, warehouses and the like.

The invention relates to a self-propelled transmission line outgoing overhaul flying car. The self-propelled transmission line outgoing overhaul flying car comprises a traveling mechanism and a car body mechanism. The traveling mechanism comprises a front driving wheel and a back driven wheel which can be suspended on a transmission line and are provided with line clamping grooves, wherein a hub motor capable of driving the front driving wheel is arranged in the front driving wheel, the front driving wheel and the back driven wheel are arranged in a wheel frame, and a support frame is arranged at the bottom of the wheel frame; the car body mechanism comprises a car frame, the car frame is suspended on the support frame, a handle is arranged at the upper end of the car frame, a reversing switch is arranged at the inner side of the handle, and the car frame is provided with a pedal plate, a seat pad and battery components; and an upper wheel is arranged above the traveling mechanism and is connected with the wheel frame by virtue of an upper wheel frame. The self-propelled transmission line outgoing overhaul flying car provided by the invention has the advantages of being easy, convenient and flexible to operate, reducing the power failure, improving the reliability of line operation, enhancing the running capability of a powder grid, improving the working efficiency, reducing the cost, reducing the labor intensity and being suitable for overhauling vertical twin bundled lines.

The invention discloses a single-cross-arm tipping-bucket bird dispersing device, which is a tool for preventing birds from nesting on a tower. The single-cross-arm tipping-bucket bird dispersing device comprises a tipping-bucket bird dispersing instrument, wherein the tipping-bucket bird dispersing instrument comprises blades, a base and a main shaft; the base is U-shaped, and is provided with a first side plate and a second side plate which are arranged oppositely; the main shaft comprises a vertical main shaft, a left side shaft and a right side shaft; the lower end of the vertical main shaft is fixedly connected to the second side plate of the base, and is vertical to the second side plate of the base; one end of the left side shaft and one end of the right side shaft are fixedly connected to both sides of the upper end of the vertical main shaft respectively; the left side shaft and the right side shaft construct a T-shaped structure together with the vertical main shaft; both the left side shaft and the right side shaft are vertical to a U-shaped opening of the base; the blades comprise a left blade and a right blade; the left blade and the right blade are rotationally connected to the left side shaft and the right side shaft respectively. By adopting the single-cross-arm tipping-bucket bird dispersing device, birds can be effectively prevented from fighting, staying and nesting on lines, the safety and smoothness of the lines are ensured, and the labor cost and material cost in line patrol are reduced.

The invention discloses a power distribution line single-phase earth fault positioning technology and a self-healing decision making method, and the method comprises the steps: (1) building a grounding model for actual grounding recording data of a power distribution network through FFT and WPD, and extracting transient steady-state fault features; (2) carrying out high-speed sampling on the voltage and current of the line by the power distribution terminal, combining transient protection of wavelet packet transformation, and adopting a multi-time-window multi-protection algorithm to carry outweighted comprehensive grounding fault detection; (3) uploading the fault information to a main station by adopting a GPS / Beidou synchronization technology; and (4) arranging an integrated wide-areainformation decision module in the main station judges the position of a fault point according to the fault information of each power distribution terminal, positioning a fault section and giving an optimal self-healing decision method. According to the invention, transient state and steady state comprehensive detection of the grounding fault is realized, and the grounding protection level is improved; accurate positioning of a fault section is realized, an optimal self-healing scheme of a grounding fault is automatically formed, and a power failure surface is reduced.

The invention relates to a real-time calculation method for sag of an overhead conductor in hot weather. The method comprises the following steps: collecting environment temperature and load current at a position where the overhead conductor to be tested is arranged; establishing a functional relation (1) among the load current of the conductor, the environment temperature and the conductor temperature; establishing a functional relation (4) among the load current of the conductor, the environment temperature and the conductor sag; calculating a conductor sag calculated value f1 of the tested conductor in the measured environment temperature and load current according to the functional relation (4), and measuring a sag measured value f2 of the tested conductor in field by using a range finder; comparing f1 with f2, and correcting the functional relation (4) until the difference value of the conductor sag calculated value and the measured value is in an allowed range; calculating the sag value of the overhead conductor in real time according to the real-time environment temperature value and the real-time conductor load current value. According to the method, less data is required to be detected and less equipment is required, and real-time control of the conductor sag can be realized.

The invention discloses a connecting clamp of a distribution transformer bushing lead screw rod and a line wire. The connecting clamp comprises a screw rod clamping plate, a long clamping plate and a lead wire pressing plate, wherein the lead screw rod is placed between the screw rod clamping plate and the upper end of the long clamping plate; the two ends of the screw rod clamping plate are fixedly connected with the upper end of the long clamping plate through bolts; the lead wire is placed between the lower end of the long clamping plate and the lead wire pressing plate; and the lower end of the long clamping plate is fixedly connected with the lead wire pressing plate through a bolt. With the adoption of the connecting clamp disclosed by the invention, the heating and burning-out of the connection between the high-voltage and low-voltage bushing lead screw rods of a transformer and the clamp can be reduced, the power failure frequency to a user is reduced, the power supplying reliability is improved, and the enterprise and social benefits are increased.

The invention discloses a 10 KV indirect live-line easy-mounting all-insulating space-occupying bird repeller, including rotating fans, a nylon stand column, and a clamping base. The rotating fan comprises a roller arranged in a horizontal manner, and a plurality of uniformly distributed fan blades. An end of the roller is also provided with a connecting block and a splicing rotating fan. The upper part of the nylon stand column is rotatably provided with a horizontal shaft. Two ends of the horizontal shaft are provided with the rotating fans. The clamping base is connected under the nylon stand column. The clamping base is in a U-shaped structure lying flat. The middle part of the clamping base is provided with a clamping groove into which a cross arm can be inserted. The bottom of the clamping base is provided with a buckle. The buckle comprises a bending rod and a projection. The projection is hinged under the clamping base through a support. Pulling the bending rod downward, the projection can pass through a bottom plate on the lower part of the clamping base and extend into the clamping groove, to lock the cross arm which is inserted into the clamping groove. An indirect live-line mounting mode is used in the bird repeller, bird repelling space can be expanded as needed, and service life of a bearing is prolonged, the number of power failure and electrification is reduced,labor intensity is reduced, and bird repelling efficiency is effectively improved.