560results about "Overhead installation" patented technology

The invention discloses a design and maintenance system and method for an anti-icing and anti-icing scheme of a power transmission line in a low-temperature icy region, and aims to solve the problems of extensive design and passive operation and maintenance in the prior art. The system comprises a data acquisition module, an icing risk division module, an icing load engineering determination module, a differential design module, an online monitoring module and a maintenance decision module. According to the method, through multi-source data collection and preprocessing, a refined icing grade distribution diagram is generated in combination with GIS spatial analysis and a random forest model, the ice thickness is deduced and designed based on Gunn Bell distribution, the icing load is calculated, differential design schemes are generated for a pole tower and a foundation, a wire and a ground wire, an insulator and a fitting and power distribution equipment, and the method is applied to the field of power distribution. And closed-loop management is formed in cooperation with online monitoring and dynamic maintenance. The method realizes accurate identification of the icing risk, gives consideration to safety and economy, improves the ice-resistant toughness of a power grid, reduces the operation and maintenance cost, and is suitable for design and maintenance of power transmission lines in low-temperature icy areas such as northern and southwest plateau areas.

The utility model discloses an unmanned aerial vehicle with a deicing device, and relates to the field of deicing of high-voltage overhead conductors, the unmanned aerial vehicle is provided with the deicing device, the deicing device comprises a microwave generator and an ultrasonic generator which are oppositely arranged, and a power transmission line is located between the microwave generator and the ultrasonic generator. Microwaves and ultrasonic waves emitted by the microwave generator and the ultrasonic generator face the power transmission line. According to the utility model, the ice layer is cracked by utilizing high-frequency vibration heating generated by ultrasonic waves and microwaves, so that the purpose of removing the ice layer is achieved. According to the method, a power grid line does not need to be contacted, and line damage possibly caused by direct impact is avoided.

An aircraft control method and apparatus, and a movable platform control method and apparatus. The aircraft control method comprises: an aircraft acquires position information of a power transmission line, wherein the aircraft can be connected to a deicing rod by means of a rope (S11); the aircraft moves towards the power transmission line on the basis of the position information of the power transmission line (S12); and the aircraft moves to a preset position, so that the deicing rod connected to the aircraft by means of the rope can move to collide with the power transmission line under the action of the movement of the aircraft (S13).

The application relates to the technical field of cable deicing, in particular to an efficient deicing robot for a power grid, which comprises a deicing shell, a UAV body, a driving assembly, an ice breaking assembly, a clamping assembly and a connecting assembly, the deicing shell is connected with the UAV body through the connecting assembly; the application is provided with the supporting frame, the driving assembly and the ice breaking assembly; when the UAV body moves, the moving UAV body drives the supporting frame to move along the direction of the cable on the side of the cable; in the process, the working supporting frame heats the ice on the surface of the cable; meanwhile, the ice breaking plate rotates reciprocatingly around the first pin rod under the action of the cam and the first torsional spring during the movement of the UAV body, so that the rotating ice breaking plate can reciprocatingly impact the heated ice on the surface of the cable, the ice on the surface of the cable can be removed twice, and the ice on the surface of the cable can be removed with high quality.

The application discloses a high-altitude cable deicing device and a high-altitude cable deicing method. The high-altitude cable deicing device comprises a base, a first walking mechanism, a first deicing device, a spiral aircraft and a battery. The base is provided with a deicing groove and a machine cavity. The deicing groove is located above the machine cavity, and a heating sheet is arranged between the deicing groove and the machine cavity. The first walking mechanism comprises a first support slidably arranged on the base, a second support slidably arranged on the base, a first roller mounted on the first support, a second roller mounted on the second support, a first driver in transmission connection with the first roller and / or the second roller, and a second driver in transmission connection with the first support and the second support to make the first support and the second support approach or move away from each other. A first wire clamping channel is formed between the first roller and the second roller, and the first deicing device is located above the deicing groove and on the extension path of the first wire clamping channel. The high-altitude cable deicing device can improve the efficiency and safety of cable deicing.

The invention discloses a distribution network on-line ice melting reactive compensation method and system based on magnetic control switch grading compensation, and relates to the field of disaster prevention and reduction and electric energy quality control of an electric power system. The problems of reactive unbalance, voltage fluctuation and harmonic pollution in the ice melting process are solved. The core is that a Z-type grounding transformer zero-sequence ice melting topology and a magnetically controlled switch grading compensation topology are integrated, and line ice melting is realized by constructing a zero-sequence ice melting loop; a double-state control strategy of blocking-state high-damping standby and conducting-state inrush-current-free switching of a magnetically-controlled switch branch is designed, and integration of reactive compensation and harmonic filtering is achieved by combining resonance tuning; the number of compensation branch switching groups is dynamically adjusted by adopting split-phase independent nine-zone graph closed-loop hierarchical control. According to the invention, ice melting and reactive compensation co-topology operation is realized, the stability of a power grid is improved, the device loss and the operation and maintenance cost are reduced, the mobile ice melting requirement is met, and the engineering practicability is high.

A multipiece enclosure assembly is provided. The multipiece enclosure assembly may include a base comprising one or more walls and defining an interior configured to house one or more components and surrounded by the one or more walls. The base may have an open top and define a first opening at a front wall of the one or more walls. The open top and the first opening may provide access to the interior of the base to allow for connecting at least a portion of the one or more components to an incoming cable outside of the base. The multipiece enclosure assembly may further include an insert defining a second opening. The insert may be configured for being releasably secured to the base at the first opening. The multipiece enclosure assembly may further include a cover configured for being releasably secured to the base.

The invention relates to the technical field of railway contact networks, in particular to an electrified railway anti-icing contact network and a control system.The device comprises a contact network wire and a brim flow guide structure arranged on the contact network wire in a sleeving mode; the upper part of the catenary wire is an arc-shaped surface, the middle part of the catenary wire is provided with a dovetail groove, and the lower part of the catenary wire is a conductive surface; the shape of the upper portion of the brim diversion structure is consistent with that of the upper portion of the contact network wire, the middle of the brim diversion structure extends towards the two sides to form brim-shaped diversion plates, and the brim-shaped diversion plates are used for guiding airflow to drive freezing rain water drops to slide towards the two sides so as to avoid a conductive surface; the brim-shaped flow guide plate is positioned below the dovetail groove; and after the cap-brim-shaped guide plate is sleeved on the overhead line system wire, the conductive surface can be in contact with the pantograph. Structural innovation and collaborative prevention and control logic are integrated, and the problems that an existing electrified railway anti-icing scheme is single, limited in function and insufficient in adaptability are solved.

The invention discloses a suspension insulator deicing robot control method and system, and relates to the technical field of deicing robots, and the method comprises the steps: selecting a deicing strategy according to the detected icing state of an insulator string and an ice bridge risk judgment result; under the selected deicing strategy, according to the icing state and the operation state of the robot, the propelling pressure, the propelling speed, the propelling distance and the lifting adjustment amount used for controlling operation of the robot are set; and the extrusion force applied to the insulator string by the robot in the operation process, the operation area image and the actual deicing time are obtained, so that the operation parameters of the robot are fed back and adjusted. The icing state of the insulator is automatically identified, and the operation strategy is optimized according to different icing conditions. And through high-precision positioning, force control and visual feedback technologies, high efficiency, precision and safety of deicing operation are ensured.

The invention belongs to the technical field of power robots. According to the suspension insulator layered progressive intelligent deicing method, robot and system, in the insulator multi-dimensional sensing intelligent recognition step, after the deicing robot is hung to a tower where an insulator string is located, an insulator multi-dimensional sensing recognition agent is called to recognize an insulator string image in an icing state, and the insulator string image is subjected to image recognition; obtaining a position identification result and an icing thickness of the insulator string; in the layered progressive adaptive decision-making step, an autonomous decision-making agent is called to adaptively select a deicing strategy according to the icing thickness, and a deicing clamping jaw is controlled to deice the insulator chain layer by layer according to the selected deicing strategy and the position identification result of the insulator chain; in the effect evaluation closed-loop strategy adjustment step, the ice detection agent is autonomously called in the deicing process to evaluate the deicing effect, and the deicing strategy is dynamically adjusted in a closed-loop mode according to the deicing effect evaluation result. According to the invention, the accuracy, efficiency and safety of deicing operation are greatly improved.

The invention provides a power distribution network pre-disaster active defense method considering network reconstruction. The method comprises the following steps: 1) establishing a power distribution network operation state model and defining system elements; 2) acquiring meteorological prediction data in a future preset time window, predicting the icing thickness of the distribution line at each moment, calculating the line failure probability according to the icing thickness, and judging the line with the failure probability exceeding a threshold value as a high-risk line; 3) constructing a pre-disaster active defense optimization model of the power distribution network; 4) introducing a second-order cone relaxation method to convert the non-convex power flow constraint in the pre-disaster active defense optimization model of the power distribution network into a convex constraint form; (5) carrying out iterative solution on the converted active defense model by adopting a Benders decomposition method to generate an optimal network reconstruction scheme, a power flow operation state and a distributed power supply output scheme, and (6) monitoring a line icing state in real time to realize dynamic updating of an active defense strategy.

The invention discloses a high-voltage wire deicing vehicle, belongs to the technical field of cable deicing, and solves the problems that a cable deicing robot clamps a wire through symmetrical cone pulleys and needs electromagnetic adsorption for falling prevention, and once an adsorption structure is damaged, an unmanned aerial vehicle cannot take the cable deicing robot down from the wire. Comprising a whole vehicle, a containing space exists in the whole vehicle, the bottom, the front end and the rear end of the containing space are all communicated with the outside, a plurality of supporting points and displacement friction parts of the whole vehicle are all located at the top of the containing space, the displacement friction parts of the whole vehicle are located at the same horizontal height, and the gravity center of the whole vehicle is located below the supporting points and the displacement friction parts. It can be ensured that the whole high-voltage wire deicing vehicle is limited on a wire cable without additionally arranging an electromagnetic adsorption structure, the high-voltage wire deicing vehicle is smoothly placed on and taken down from the wire cable through the unmanned aerial vehicle, and the additional damage risk is not increased; and the original walking stability on the cable can be maintained.

An electrical utility upgrade system for an existing transmission tower having a foundation, a tower structure and an electrical circuit. The upgrade system includes an exoskeleton structure coupled to the bridge bypass frame and secured to the foundation. The system also includes a bridge bypass frame positioned above the existing electrical circuit and coupled to the exoskeleton structure. The system further includes a tower top circuit positioned above the existing electrical circuit and coupled to the bridge bypass frame and transmission line hardware coupled to the tower top circuit. The system is design to transfer forces exerted on the tower top circuit through the bridge bypass frame to the exoskeleton structure and to the foundation to reduce forces acting on the tower structure.

The utility model relates to the technical field of overhead transmission lines, in particular to an overhead conductor. The overhead conductor comprises a core body and a first conductive layer, the core body is coated with the first conductive layer, a plurality of guide grooves are formed in the face, away from the core body, of the first conductive layer, the guide grooves are sequentially arranged at intervals in the axis direction of the core body, and a first included angle is formed between the extending direction of the guide grooves and the axis direction of the core body. According to the overhead conductor provided by the invention, the deicing effect can be realized, and the safety of power transmission is ensured.

The invention relates to the technical field of power dispatching, in particular to an expressway direct-current micro-grid energy dispatching method and device, and the device comprises a local dispatching module which is connected with a distributed execution module, an emergency response module, an operation refining module and a scene switching module. According to the welding device, a plurality of sheet-metal aluminum veneers can be sequentially welded, so that the cut openings at the corners of the folded edges of the aluminum veneers are tighter, the tightness degree after welding is improved, the welding point positions of all the aluminum veneers can be kept consistent, the welding precision is improved, and the welding quality is improved. The system has the functions of efficient and stable power supply guarantee, scene adaptation and precise regulation and control, emergency response and safety prevention and control.

The invention relates to the technical field of anti-icing and deicing of overhead transmission lines, and provides an overhead transmission line deicing device adopting a torque transmission component to transmit energy. The device is used for being connected between a first component and a second component of an overhead transmission line and comprises a first base, a second base, a torque transmission component, a clutch mechanism and an elastic component. The first base is arranged on the first component and provided with a motor, and the second base is connected to the second component and provided with the clutch mechanism and the elastic component. The two ends of the torque transmission component are in transmission connection with the motor and the clutch mechanism driving component respectively, the elastic component stores energy when the clutch mechanism is connected and releases energy when the clutch mechanism is separated, and the released energy acts on the second component through the second base or the driven component. According to the device, energy transfer among different potential components is achieved, the motor and the clutch mechanism are separately arranged to achieve mass balanced allocation, the energy transfer distance is shortened, loss and inertia influences are reduced, the torque energy transfer efficiency is higher, and the deicing efficiency is improved.

The utility model relates to the technical field of line deicing, and provides an overhead line deicing device, which comprises a connecting plate, an adjusting structure is fixed at the top end of the connecting plate, the adjusting structure comprises an adjusting seat fixed at the top end of the connecting plate, and adjusting blocks are arranged on two sides in the adjusting seat. And lead screws are in threaded connection with the interiors of the adjusting blocks correspondingly, and guide rods are arranged on the two sides of the lead screws correspondingly. By arranging the adjusting structure, the distance between the limiting frames can be conveniently adjusted under the moving action of the adjusting block, so that the distance between the deicing knives can be conveniently adjusted, line bodies with different diameters can be conveniently deiced, and the stability of the adjusting block during moving can be improved under the guiding action of the guide rod; according to the overhead line deicing device, the function of conveniently adjusting the distance between the deicing knives is achieved, and the applicability of the overhead line deicing device in use is improved.

The invention, which belongs to the technical field of power line maintenance, discloses an inclined deicing equipment traction on-line apparatus, which is used for dragging deicing equipment to an overhead conductor to remove ice, and comprises an inclined guide mechanism comprising a support frame with an adjustable inclination angle and a guide rail arranged at the top of the support frame, a shell is detachably arranged in the guide rail, one side of the shell is provided with an arc-shaped guide groove parallel to the extending direction of the wire, the curvature of the arc-shaped guide groove is matched with the outer diameter of the wire, and the arc-shaped guide groove is used for being connected with the wire and guiding the deicing equipment to slide in the direction of the wire; and the flexible traction mechanism comprises a traction rope, a driving unit and a locking assembly, one end of the traction rope is connected with the deicing equipment, and the other end of the traction rope is wound on a winding drum of the driving unit. According to the invention, through combination of inclined guiding and flexible traction, semi-automatic safe on-line operation of deicing equipment is realized, and the risk of manual high-altitude operation is greatly reduced.

The invention is suitable for the technical field of cable inspection, and particularly relates to a power grid cable inspection method and system based on an unmanned aerial vehicle, and the method comprises the steps: building a cable digital twinborn model based on the installation position of an iron tower and the cable span; generating an inspection route, controlling the unmanned aerial vehicle to fly based on the inspection route, and performing image acquisition on the cable in the flying process to obtain a local cable image; extracting and splicing cables in the local cable image, extracting contours of the cables in the spliced image, dividing the contours into cable contours and ice edge contours, and constructing a cable icing model; and carrying out gridding processing on the cable icing model, constructing a finite element analysis model, analyzing stress conditions of the cable at all positions, outputting an analysis result, and judging whether deicing operation is carried out or not according to the analysis result. According to the invention, the construction of the cable digital twin model is combined with the autonomous inspection of the unmanned aerial vehicle, so that the accurate, efficient and intelligent monitoring of the icing state of the cable is realized.

The invention relates to the technical field of unmanned aerial vehicle application, and discloses an unmanned aerial vehicle-based overhead line inspection and deicing integrated cleaning device, which comprises an unmanned aerial vehicle main body with rotor wings at four corners, T-shaped plates are fixed on two sides of the bottom of the unmanned aerial vehicle main body through hanging brackets, and a first cleaning mechanism is movably arranged between fixing plates at two ends of the side wall of a vertical plate of each T-shaped plate; infrared wide-angle cameras are mounted at the bottoms of the unmanned aerial vehicles at two ends of the T The first cleaning mechanism comprises a lead screw, a driven gear, a driving source, a moving seat and an extrusion wheel at the bottom, an electric heating wire electrically connected with the connecting seat is arranged in the extrusion wheel, and the driving source drives the lead screw to enable the moving seat to move synchronously. The method adapts to icing scenes with different thicknesses, does not need separate operation, shortens the operation time, reduces the maintenance cost, avoids manual high-altitude risks, and guarantees the safe and stable operation of an overhead line.

A utility pole location specifying system according to the present disclosure includes a cable (20) containing a communication optical fiber disposed in a utility pole (10), a receiving unit (331) configured to receive an optical signal containing a characteristic pattern of the utility pole (10) from at least one communication optical fiber contained in the cable (20), and a specifying unit (332) configured to specify a location of the utility pole (10) based on the characteristic pattern.

The application relates to the technical field of electric power, and discloses a deicing device for an overhead power transmission cable, which comprises a main body, a driving assembly and a deicing assembly, the main body is internally provided with a containing cavity, and one end of the main body is provided with a mounting port; the driving assembly is installed in the containing cavity; the deicing assembly comprises a mounting seat, sliding rails, sliding members and fixing members, the mounting seat is fixed in the mounting port; the sliding rails are installed on the mounting seat and are arranged in the radial direction of the mounting seat; a plurality of the sliding rails are arranged in the circumferential direction of the mounting seat, the sliding members are slidably assembled on the sliding rails, one end of the sliding member, which is away from the sliding rail, is connected with the fixing member, and the fixing members are combined to form a deicing port for the power transmission cable; one side of the fixing member, which faces the deicing port, is provided with an ice pushing member; the sliding members are driven by electricity to linearly reciprocate along the sliding rails, so that the fixing members are away from or close to each other, and the deicing port is expanded or contracted. The application can adjust the caliber of the deicing port, so that the deicing device is suitable for power transmission cables with different specifications and sizes, and the adaptability of the deicing device is improved.

The application discloses a kind of anti-bird device for power transmission line and use method, including two electric poles, two supports and electric wire, the support is located at the top of electric pole, the both ends of the top of support are fixedly installed with insulator, the both ends of electric wire extend to the outside of two insulators, transmission assembly is equipped between the opposite side of two supports, the top of transmission assembly is equipped with power generation component, the top of transmission assembly is fixedly connected with support rod, the top of support rod is fixedly connected with top block, the bottom of transmission assembly is equipped with cleaning assembly, the right side of transmission assembly is equipped with camera, the inside of transmission assembly is equipped with whistling component.The application can solve the problem that the effect of existing anti-bird device cannot be achieved, the electric wire cannot be checked in time and the electric wire cannot be cleaned easily by setting transmission assembly, power generation component, camera and cleaning assembly.

The application discloses an OPGW distribution line lightning attracting protection device and a use method thereof, wherein the device comprises a composite insulator umbrella skirt, a lightning attracting rod fixed on the composite insulator umbrella skirt, a lightning guiding rod matched with the lightning attracting rod and a connecting mechanism. The connecting mechanism comprises an adjusting assembly. The adjusting assembly comprises an insulating porcelain seat fixedly connected at the bottom end of the composite insulator umbrella skirt. A U-shaped guide rail is fixedly connected to the side surface of the insulating porcelain seat. An end seat is movably connected to the inner side of the U-shaped guide rail, and clamping grooves are formed in the two sides of the inner wall of the U-shaped guide rail. Clamping edges are arranged on the two sides of the surface of the end seat. The two clamping edges are slidably connected in the same side clamping groove, and the connection between the clamping edges and the clamping groove is lockable. The lightning guiding rod is fixedly connected to the end seat. In use, the connection between the clamping plate and the clamping groove is only unlocked, and then the gap distance between the lightning guiding rod and the lightning attracting rod can be adjusted by pushing the end seat to move, so that the adjusting efficiency is better than that of continuous screwing adjustment.

The application discloses a control method of a power distribution line ice melting device, which adopts the power distribution line ice melting device to melt ice, and the ice melting device comprises a parallel side converter, a series side converter, an energy storage capacitor, a parallel side transformer and a series side transformer, the energy storage capacitor is connected between the parallel side converter and the series side converter, the parallel side converter is a three-phase converter, absorbs active power of a fundamental frequency from the power distribution network through the parallel side transformer, the series side converter is a single-phase converter, generates non-fundamental wave current, and injects the non-fundamental wave current into a first end of a line to be melted through a neutral point of the series side transformer to generate Joule heat in the line to be melted to melt ice without power-off operation. Compared with the traditional method, the application can effectively reduce the interference on the power grid, reduce the ice melting cost, and improve the stability and reliability of the system.

The invention provides a system and method for removing an ice layer on the surface of a high-speed rail contact line based on composite laser, and relates to the technical field of laser deicing, and the system comprises an online detection unit which is used for obtaining thickness data and type information of the ice layer on the surface of the contact line in a contact line icing area when it is detected that the contact line is iced; the infrared positioning unit is used for determining three-dimensional positioning data of an icing area of the contact line and monitoring temperature information of the icing and the contact line in real time; the intelligent control unit is used for regulating and controlling working parameters of the composite laser deicing unit according to the thickness data, the type information, the positioning data and the temperature information; and the composite laser deicing unit is used for determining a laser output mode according to the working parameters so as to realize deicing operation. The problems that in a traditional high-speed rail contact line deicing mode, manual deicing is low in efficiency and high in safety risk, a contact net is prone to being damaged by mechanical deicing, electric heating deicing is high in energy consumption and poor in adaptability, and single laser deicing is insufficient in efficiency and accuracy can be solved in a targeted mode.

The application discloses a cable deicing device and relates to the technical field of cable deicing, and specifically relates to the following technical scheme: a cable deicing device, which comprises a mounting frame, the mounting frame comprises an upper mounting frame and a lower mounting frame used for being connected to the outside of a cable body, the opposite sides of the upper mounting frame and the lower mounting frame are connected with a power wheel through a sliding block, one end of the mounting frame is provided with an electric control telescopic cylinder, the output end of the electric control telescopic cylinder is connected with the sliding block through a connecting rod to drive the power wheel to tightly contact the cable body, the other end of the mounting frame is connected with a cone, a rotating cylinder is arranged in the cone, the mounting frame is connected with the connecting rod in a rotating mode, the connecting rod is connected with the output end of the electric control telescopic cylinder in a plug-in mode to drive the rotating cylinder to move along the telescopic direction of the electric control telescopic cylinder, the connecting rod is connected with the rotating cylinder in a rotating mode, a deicing assembly is arranged on the rotating cylinder, the deicing assembly is connected with the inside of the cone in a sliding mode, and the rotating cylinder is moved to adjust the distance between the deicing assembly and the cable body.

The invention discloses a power distribution network line bird repelling device and method and an operation robot, and particularly relates to the technical field of power grid bird repelling, the power distribution network line bird repelling device comprises a bird repelling sleeve, a groove sleeve column, a plurality of upper scattering cylinders, a sealing cover and an alternating spacer, and the groove sleeve column is installed in the bird repelling sleeve; the upper scattering barrels are fixed to the inner wall of the bird repelling sleeve and are close to the top end of the bird repelling sleeve, the upper surface of each upper scattering barrel is slidably connected with a sealing cover, and the sealing covers are provided with alternating distance pieces. According to the invention, through combination of upper alternate odor dissipation and lateral synchronous odor dissipation, vertical, lateral and lower all-dimensional and multi-odor three-dimensional interval bird repelling operation is formed, long-term deterrence to birds is maintained, and the bird repelling effect is greatly improved, so that the problems that interval change bird repelling in different directions is difficult to perform on various bird repelling agents, long-term deterrence to the birds is difficult to maintain, and the bird repelling effect is poor are solved. And the bird repelling effect is poor.