1106results about "Overhead installation" patented technology

The invention provides a deicing control method and system for a power transmission line in a cold region, and relates to the technical field of power system power transmission line operation and maintaining.The method comprises the steps that icing data of the power transmission line are collected, the icing data are multi-source data and comprise the ice layer thickness, the ice type category and the distribution characteristic, and the ice layer thickness, the ice type category and the distribution characteristic are obtained by combining environment temperature, humidity and geographical location information; dynamically selecting a plurality of spatial sampling positions on the target line to construct a spatial correlation area for feature analysis; and obtaining correction parameters based on morphological characteristics of the spatial correlation region, performing spatial superposition and feature fusion analysis on the multi-source data according to the correction parameters, and extracting an icing feature set which is dynamically corrected and reflects the overall icing state of the line. According to the invention, differentiated ice removal in different climate areas can be realized, and intelligent deicing control of accurate identification, mode adaptation and closed-loop adjustment is realized in combination with multi-source monitoring data.

The invention relates to the technical field of power transmission line deicing, in particular to a multi-split conductor flying deicing robot. The flying mechanism is mounted on the aircraft body and used for driving the aircraft body to go up and down; the displacement mechanism is installed on the machine body and used for driving the machine body to walk and move on the upper-layer wire. The first avoiding mechanism is installed on the machine body, an upper-layer deicing mechanism is installed on the first avoiding mechanism, and the first avoiding mechanism is used for driving the upper-layer deicing mechanism to be close to or away from an upper-layer wire; the first avoiding mechanism, the second avoiding mechanism and the flying mechanism are installed on the machine body, and when wire feeding and wire discharging are needed, the machine body can be driven by the flying mechanism to fly to the position above a specified four-bundle conductor. And then the flight mechanism is controlled to descend and land under the assistance of visual identification, so that the displacement mechanism can fall onto the upper-layer wire.

The invention relates to a low-voltage distribution network non-power-off online ice melting method based on mobile power supply equipment, and the method comprises the following steps: obtaining meteorological information, and line parameter information and line icing information of a low-voltage distribution network; according to the meteorological information, the line parameter information and the line icing information, calculating the minimum ice melting current required by the icing line and the ice melting line power under the minimum ice melting current; and selecting to deploy a first mobile power supply device for transmitting power, or deploying a second mobile power supply device and the first mobile power supply device for transmitting power and absorbing power respectively, so as to carry out ice melting operation based on the ice melting line power. Ice melting can be carried out without power outage, and the supporting capacity of a distribution network line for coping with extremely cold climate is improved.

The invention discloses a remote-controlled power transmission line inspection device which comprises a tower, the upper end of the tower is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with an insulator, the top of the insulator is provided with a power transmission cable, the outer surface of the connecting rod is fixedly connected with a fixed base, and the top of the power transmission cable is slidably provided with an inspection device. According to the scheme, multi-section inspection is achieved, the problem that long-distance inspection cannot be achieved due to long-distance flight of an unmanned aerial vehicle and insufficient power is solved, meanwhile, a background can independently select one section of a power transmission cable for inspection, and the inspection efficiency is improved. Operation and management of the inspector are facilitated, active inspection is achieved, the location and position of a fault are found in the first time, the inspector can conveniently repair the fault in time, loss expansion is avoided, the position of the fault and hidden danger is rapidly found, and the inspection and maintenance efficiency is improved.

The utility model relates to the technical field of cable deicing, and particularly discloses a vibration type cable deicing device based on unmanned aerial vehicle wire hanging, which comprises a rack, a walking mechanism, a deicing mechanism and a pressing mechanism, the eccentric rotating assembly comprises a fixed seat, a first driving device, an eccentric shaft, a deicing plate, a rotating shaft mounting seat and a fixed rotating shaft; the deicing plate is provided with a deflection part and a rotating part; during deicing, the distance between the two rotating parts can be adjusted to be small, the eccentric shaft is utilized to drive the deicing plate to periodically clamp or break ice on a cable in a vibration mode in the direction of the deicing channel, in cooperation with extrusion of the two rotating parts, an ice coating layer of the cable is efficiently broken in a vibration mode and then crushed, then the ice coating layer is separated from the cable under the action of gravity, and deicing can be achieved while walking is conducted. The deicing efficiency is high; and a pressing mechanism is further arranged, after wire hanging is completed, the auxiliary wheel can be driven to ascend, the upper end of the auxiliary wheel abuts against the lower end of the cable, and the stability of the cable deicing device during walking is improved.

A system, a method, and / or a computer program for mounting a cable device on an electric cable of an electric grid, and dismounting therefrom, the mounting device including a first coupling part arranged to attach the mounting device to a flying vehicle, a second coupling part arranged to attach the cable device to the mounting device, and a navigation part operative to enable a user to navigate the flying vehicle so as to direct a slot of the cable device to the electric cable, and / or automatically navigate the flying vehicle to direct the slot of the cable device to the electric cable, and / or enable a user to navigate the flying vehicle to the cable device, and / or automatically navigate the flying vehicle to the cable device.

The invention belongs to the technical field of power transmission line deicing devices, and particularly relates to a power transmission line multi-bundle conductor deicing robot which solves the problems that an existing deicing robot is unstable in clamping, not thorough in deicing and incapable of preventing icing, the robot is provided with two supporting connecting rods parallel to conductors, and two sets of deicing structures are used for deicing four conductors. The top cover plate is provided with a transmission lead screw and a limiting structure and can clamp and limit a wire, the rubbing structure can rub the wire below to improve the deicing efficiency, the coating structure can coat the wire with an anti-icing coating after deicing, stable clamping is achieved through cooperation of a vibration roller, an abutting swing arm and the like, deicing is achieved through rubbing and vibration, and icing can be prevented in time. Icing secondary formation is prevented, and safe and stable operation of the power transmission line is guaranteed.

The invention discloses a mobile contact network direct-current ice melting method, which comprises the following steps that: a monitoring vehicle and an ice melting vehicle are marshaled and run to a designated place, the two vehicles are de-marshaled, the ice melting vehicle is parked to the designated place, and the monitoring vehicle continues to run towards an ice melting section. The ice melting vehicle starts to electrically connect the wire clamp for construction after the contact network is subjected to electricity testing and grounding, and at the moment, the monitoring vehicle collects environment working conditions and icing state information in the ice melting section. And after construction of the electric connecting wire clamp and acquisition of monitoring information are completed, the monitoring vehicle sends an optimal ice melting current value to the ice melting vehicle, and the ice melting vehicle outputs an actual ice melting current after judging that the ice melting vehicle works normally. In the ice melting process, the monitoring vehicle reciprocates in the ice melting section, the icing degree of the contact network is monitored, and when it is monitored that icing disappears, an ice melting stopping instruction is sent to the ice melting vehicle. After ice melting is finished, the contact network is subjected to electricity testing and grounding at the ice melting vehicle, then the electric connecting wire clamp is removed, and the monitoring vehicle runs towards the ice melting vehicle. The technical problems that an existing overhead line system electric heating ice melting device is poor in mobility and low in utilization rate can be solved.

The invention discloses a multi-stage cable deicing robot and a graded deicing method, the problem that the surface of a cable is possibly scratched by a cutting edge is avoided, the service life of the cable is not affected, and meanwhile ice blocks with higher thickness and hardness can be handled through the mode of hammering pretreatment, permeation, clamping and breaking and cleaning. The mounting walking module is sequentially provided with a hammering module, a liquid spraying and permeating module and a clamping and breaking ice-breaking module from the front end to the rear end of the mounting walking module; the hammering module comprises a hammer head capable of swinging in a reciprocating manner, and the hammer head is used for knocking an ice layer on the surface of the cable in an intermittent hammering manner; the liquid spraying and permeating module comprises a nozzle assembly and a liquid storage tank, and the liquid storage tank is used for storing deicing liquid; the nozzle assembly is used for spraying deicing liquid; the clamping and breaking ice breaking module comprises two rotating clamping arms which are symmetrically arranged and an opening and closing driving mechanism, and the opening and closing driving mechanism is used for driving the two rotating clamping arms to be close to or away from each other. According to the graded deicing method, the cable icing thickness is detected through the sensing module, and the operation parameters of the multi-stage deicing module are adjusted in real time according to different thickness grades.

The invention belongs to the technical field of electric power facility overhaul, and particularly relates to an integrated scorpion-shaped robot for electric power facility overhaul ice breaking. The functions of detection, maintenance, ice breaking and the like are integrated through the four-rotor posture cooperation system, the rigid-flexible coupling mechanical claw scorpion tail, the ice breaking milling connecting rod, the clamping type track rolling ice breaking mechanism, the strong magnetic mechanical feet, the pan-tilt camera, the damping module and the like, and the requirements for efficient ice breaking, high-voltage electric tower blind area operation and the like are met. The electric tower overhauling part is accurately grabbed and attached to the position near the part, needing to be overhauled, of the high-voltage electric tower through a strong magnetic mechanical foot, and automatic and accurate overhauling of the electric tower is achieved in cooperation with the scorpion tail of a bionic scorpion-shaped mechanical claw of a rigid-flexible coupling 3UU parallel wrist joint; according to the circuit icebreaking part, an icebreaking wheel-milling wheel connecting rod is combined with a clamping type track rolling icebreaking mechanism, effective climbing along a line at various angles is guaranteed through a four-rotor posture cooperation system, and the stability of high-altitude operation is improved.

The invention relates to a thermodynamic design method for distributed overhead ground wire alternating current ice melting, and belongs to the technical field of power transmission line ice melting. The method aims at solving the problems that an existing ice melting technology is high in power consumption, low in efficiency, difficult in equipment movement and lack of fine design of a current regulation and control strategy. The core of the technical scheme is that a thermal equivalent theoretical model and an electric heat flow coupling simulation model of the overhead ground wire are established, key thresholds such as wire protection current, critical ice melting current and maximum allowable current are determined through calculation, and an effective value of alternating current injected into the ground wire is flexibly adjusted by using a reactive power compensation device. According to the method, segmented ice melting according to needs can be achieved, energy consumption is remarkably reduced, the ice melting efficiency and safety are improved, and the needed device is small in size, convenient to move and deploy and suitable for various complex icing working conditions.

The invention discloses a power distribution line uninterrupted ice melting method and device and a medium, and belongs to the technical field of power distribution line ice melting. Ice melting parameters are determined, and the gear of a multi-gear output ice melting transformer is adjusted; the ice melting access switch is controlled to be switched on to form an ice melting loop; and determining a de-icing termination condition and controlling the de-icing access switch to be switched off. The special ice-melting wire is composed of a steel core wire for bearing tension, an aluminum stranded wire for transmitting load current, a heating wire for transmitting ice-melting current and a high-thermal-conductivity outer insulating layer. The spatial layout mode between the high-thermal-conductivity insulating wire and the steel core and the aluminum stranded wire comprises a coaxial nesting type, a single-wire spiral winding type or a non-inductive double-wire parallel winding type. In addition, the jumper connection problem of the strain tower is also considered, and the integrity of the whole ice melting system is ensured by arranging a special connection assembly. Ice melting operation of the distribution line under the uninterrupted power condition is achieved, the ice melting efficiency and the power supply reliability are guaranteed, and the ice melting device can be applied to distribution line icing prevention and control in severe weather areas such as high and cold areas and freezing areas.

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 invention discloses a balanced mechanical vibration deicing device, which comprises a wire crimping device, a protective shell connected with the wire crimping device, and a vibration piece arranged in the protective shell, the wire crimpers are used for being connected with suspended linear objects, and at least one group of wire crimpers can be arranged on one suspended linear object. The motor drives the vibration piece to move, when the vibration piece moves, the protection shell is driven to move up and down along the axis of the gravity center of the protection shell, and when the protection shell moves up and down along the axis of the gravity center of the protection shell, the wire crimping device drives the suspended linear object connected with the protection shell to move up and down synchronously. And the wire crimping devices at different positions of the suspended linear object synchronously move up and down, so that the whole suspended linear object vibrates in a wave type circumference, and an ice coating layer on the surface of the suspended linear object is broken and falls off along with the wave type circumference vibration of the suspended linear object.

An improved telegraph pole double-porcelain-bottle anti-bird hard insulating sheath capable of being installed in an electrified mode comprises two porcelain bottle sleeves used for wrapping the tops of porcelain bottles, one side of each porcelain bottle sleeve is provided with an outer side electric wire sleeve used for wrapping an electric wire, and the other side of each porcelain bottle sleeve is provided with telescopic electric wire sleeves which are in butt joint with each other and are symmetrical to the outer side electric wire sleeves. The lower end of the porcelain insulator sleeve is provided with an opening corresponding to the upper part of the porcelain insulator, the lower edge of the outer wire sleeve and the lower edge of the telescopic wire sleeve are provided with a slit communicated with the opening at the lower end of the porcelain insulator sleeve, and the two edges of the slit are respectively provided with a butt joint edge extending downwards; a mounting plate is arranged on each porcelain insulator sleeve, and a mounting hole is formed in each mounting plate; the opposite sides of the two butt joint edges are connected with clamping plates through elastic bodies respectively. The insulating sheath is made of a hard insulating material. The utility model has the advantages that the wire clamp can be suitable for wires with larger or smaller diameters, the applicability is greatly improved, the requirement on the elasticity of raw materials is reduced, and the wire clamp can be made of harder insulating materials.

The utility model discloses a guide cylinder structure adopting a blasting deicing mode, and relates to the technical field of blasting deicing, a detonation filler is arranged in a blasting guide cylinder, an electric ignition structure is provided with an ignition structure corresponding to the detonation filler, and a lower buffer protection pad is installed at the position, corresponding to a blasting assembly, of a lower clamping frame. And a V-shaped groove is formed in the lower buffer protection pad. According to the blasting deicing principle, based on a high-strength blasting guide cylinder, impact force instantly released during combustion of detonation filler serves as source power for vibration deicing of the overhead cable, a lower buffering protection pad serves as a primary protection structure of the overhead cable, and particularly, a V-shaped groove is obtained through optimization and improvement in the lower buffering protection pad; the blasting guide cylinder is used for fully clamping the overhead cable, and the key point is that a staggered clamping position between the blasting guide cylinder and the overhead cable is used for avoiding direct damage to the overhead cable caused by blasting impact force on one hand, facilitating the separation process between the blasting guide cylinder and the overhead cable on the other hand, and particularly improving the deicing efficiency.

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.

The invention relates to the technical field of ice prevention and disaster reduction of high-voltage power transmission lines, and discloses a cascaded direct-current ice melting system of a high-voltage power transmission line, a control method and a device. The method comprises the following steps: inputting a test signal to the cascaded direct-current deicing system, and detecting the voltage and current of each node; calculating line impedance distribution based on the voltage and current of each node, and constructing a line equivalent model; calculating the minimum ice melting current based on the ice thickness monitoring data and the weather data, and calculating the output current of each ice melting device based on the minimum ice melting current and the line equivalent model; monitoring circulating current between systems, and calculating virtual compensation voltage based on the circulating current; and adjusting the output voltage of each ice melting device based on the virtual compensation voltage. The ice melting success rate, the safety of the system and the service life of the system can be improved.

The invention discloses a parallel groove clamp, and belongs to the technical field of power line engineering. At present, the bolt fastening force is easy to be uneven when installation personnel operate at high altitude or in a complex environment. The device comprises a mother clamping plate and a plurality of son clamping plates, wherein the mother clamping plate and the son clamping plates provide pressure for a wire through penetrating bolts and nuts in threaded connection with the bolts; a positioning mechanism for positioning the position of the nut is arranged on the sub clamping plate, the positioning mechanism comprises an annular counter bore and a positioning platform attached to the inner wall of the counter bore, and the counter bore is connected with the positioning platform through a telescopic rod; the telescopic rod comprises a guide rod and a movable rod, and the position of the movable rod is locked through a locking mechanism; the locking mechanism comprises a locking rod, an annular groove and a straight groove are formed in the inner wall of the guide rod, and when the locking rod abuts against the annular groove, the movable rod is locked and cannot slide. According to the technical scheme, the two nuts are located at the same position limited by the positioning mechanism, the same number of turns are screwed to provide approximately uniform fastening force, deviation is reduced, and wire connection pressure is ensured to be uniform and reliable.

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 invention provides a power transmission line deicing equipment clamping control method and device, and relates to the technical field of power system operation and maintenance, and the method comprises the steps: receiving initial drop point position information, and obtaining a clamping starting instruction based on the initial drop point position information; synchronously acquiring image data and attitude data of a target line according to the clamping starting instruction, processing the image data, and extracting morphological characteristics and icing area characteristics of the surface of the line; classifying and identifying the surface state of the circuit according to a preset rule, and judging whether a clamping condition is met or not according to an identification result; if it is judged that the clamping condition is met, the spatial relation between the line surface morphology and the icing area is analyzed by fusing the image data and the attitude data, and selection of clamping points is optimized by calculating the polygon overlapping percentage between the clamping target area and the expected clamping position. According to the invention, the deicing equipment and the power transmission line can be accurately and stably clamped.

The invention provides a self-adaptive decision algorithm for a mechanical vibration deicing device and a deicing system. The self-adaptive decision algorithm comprises the steps that the deicing device is controlled to output tentative vibration of a first time period to a wire; obtaining a response signal of the wire, analyzing the response signal, and judging whether the wire is in an icing state or not; if the state is the icing state, interpreting the ice layer state of the wire based on the response signal; and calculating the deicing vibration of the deicing device according to the ice layer state, and controlling the deicing device to output the deicing vibration to the wire. The technical problems that most output parameters of a mechanical vibration deicing device in the prior art are preset fixed vibration parameters and cannot be adjusted according to the icing condition of a wire, and abnormal vibration and even mechanical damage of the wire are easily caused are solved.

The invention discloses an overhead ground wire non-outage direct current deicing method, medium and system, and the method comprises the steps: determining the length of an overhead ground wire section to be deiced according to the obtained overhead ground wire parameters, overhead ground wire icing conditions and meteorological environment parameters; according to the resistance corresponding to the length of the ground wire section, the overhead ground wire parameter, the icing condition and the meteorological environment parameter, obtaining an ice melting current; calculating a lightning current value according to the overhead ground wire parameters and the lightning current peak value; if the maximum ice-melting current is greater than or equal to the thunder current value, reducing the length of the ground wire section until the maximum ice-melting current is less than the thunder current value; if the maximum ice melting current is smaller than the lightning current value, insulation transformation is carried out on the ground wire; and connecting the transformed ground wire section with a direct-current ice melting device to form an ice melting loop, and carrying out direct-current ice melting without power failure. According to the invention, lightning protection and ice melting are taken into consideration, the ice melting work is completed while lightning protection is maintained, and the reliability and the safety of uninterrupted power supply ice melting of the overhead ground wire in severe weather of a power system are improved.

The invention discloses a deicing device and a deicing method for deicing an iced line. Deicing of the iced line is completed under the synergistic effect of an opposite clamping mechanism, an electromagnetic oscillation system, a direction controller and a clamping driving mechanism. The deicing efficiency and safety are improved through cooperation of electromagnetic multidirectional oscillation and intelligent control, multidirectional impact is achieved under driving of switching current of a direction controller by means of oscillation cavities and ferromagnetic small balls arranged in a left clamping plate and a right clamping plate, ice layer stress weak areas are monitored in real time in combination with a piezoelectric sensor, accurate directional deicing can be achieved, and the deicing efficiency and safety are improved. The problem of insufficient dead angle coverage is avoided; a hydraulic push rod and connecting rod structure ensures stable opening and closing of clamping and adapts to different line diameters, a multi-direction covering deicing process is simplified through a switch integrated with a handheld rod, the frequency is optimized through dynamic regulation and control to adapt to ice thickness changes, finally, deicing energy consumption is remarkably reduced, deicing time is remarkably shortened, and meanwhile the risk that an ice layer is broken and splashed is reduced.

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 relates to the technical field of ice removal, in particular to an ice removal, ice prevention and spraying integrated device for a cable. Comprising a driving control mechanism, spraying roller brush mechanisms, a guide arm, a hoisting mechanism and a guide way, the guide way is arranged at the lower end of the driving control mechanism, the guide arm is arranged below the guide way, the hoisting mechanism is arranged on the driving control mechanism, and the spraying roller brush mechanisms are connected to a group of opposite side walls of the driving control mechanism. The spraying roller brush mechanism is connected with the driving control mechanism; the driving control mechanism comprises a driving assembly, a fluid control assembly and a main body shell, the fluid control assembly is arranged in the main body shell, the driving assembly is used for controlling the device to move in the extending direction of the cable, one end of the fluid control assembly communicates with the water tank, and the other end is connected with the spraying roller brush mechanism; the fluid control assembly is used for controlling the two spraying roller brush mechanisms to conduct alternate work of sweeping and spraying. And the best coating effect of the anti-icing material is ensured while dirt on the surface of the cable is effectively removed.

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.

The invention discloses a full-process monitoring system, method and equipment for an ice melting station, and the system comprises a power monitoring module which is used for monitoring the line operation conditions of a high-voltage power side and a low-voltage power side, and obtaining the line data; the switch cabinet module is used for controlling the action of switch equipment in the switch cabinet and monitoring the state parameters of the switch equipment; the transformer module is used for monitoring operation parameters of a transformer and determining an opening and closing signal according to the operation parameters of the transformer; the microcontroller is used for fusing the line data, the switch equipment state parameters and the opening and closing signals to generate a dynamic ice melting instruction; the ice melting control module is used for determining a matched control strategy according to the dynamic ice melting instruction so as to control elements in the ice melting device to act, monitoring the running state of each element and displaying monitoring data through a communication screen; the safety risk of manual operation is reduced, and automatic control and real-time monitoring of the ice melting device are realized, so that the ice melting efficiency, reliability and timeliness are improved.

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.