CN103066543B - Current circulating smart ice melting device of three-bundle-conductor electric transmission line - Google Patents

Current circulating smart ice melting device of three-bundle-conductor electric transmission line Download PDF

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Publication number
CN103066543B
CN103066543B CN201310021108.4A CN201310021108A CN103066543B CN 103066543 B CN103066543 B CN 103066543B CN 201310021108 A CN201310021108 A CN 201310021108A CN 103066543 B CN103066543 B CN 103066543B
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China
Prior art keywords
conductive plate
transmission line
ice
conductor
current
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CN201310021108.4A
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Chinese (zh)
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CN103066543A (en
Inventor
蒋兴良
蒋正龙
张志劲
陆佳政
胡建林
李波
胡琴
Original Assignee
湖南省电力公司科学研究院
重庆大学
国家电网公司
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Priority to CN201310021108.4A priority Critical patent/CN103066543B/en
Publication of CN103066543A publication Critical patent/CN103066543A/en
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Publication of CN103066543B publication Critical patent/CN103066543B/en

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Abstract

A current circulating smart ice melting device of a three-bundle-conductor electric transmission line can judge if an ice coating phenomenon occurs or not by monitoring external environmental conditions. Switching on and off of a circuit breaker is controlled by a smart controller to transfer total current transmitted by three bundle conductors to one sub-conductor, and electric current density of the sub-conductor is increased to achieve the aim of ice melting. By the adoption of load current measured by a taking-electricity instrument transformer, a state of ice coating measured by an ice coating parameter monitoring unit and the external environmental conditions, the smart controller can automatically calculate the needed ice melting time. After the ice melting of one sub-conductor is finished, the smart controller controls the circuit breaker to transfer the current to another sub-conductor until ice layers on the three sub-conductors melt or drop completely, and then a normal operation state is resumed. During the working process of the current circulating smart ice melting device of the three-bundle-conductor electric transmission line, the smart controller controls the whole, working judgment standards of the smart controller is supplied by the taking-electricity instrument transformer, the ice coating parameter monitoring unit and the external environmental conditions, and the work of automatic ice melting and deicing of the electric transmission line without manual intervention can be achieved.

Description

Tripartition wire transmission line current cycle intelligence deicing device
Technical field
The present invention relates to Voltage Power technical field, particularly a kind of ultra-high-tension power transmission line deicing device for tripartition wire.
Background technology
In the environment of low temperature, high humility in the winter time, icing phenomenon can be there is in high-tension electricity transmission line, serious icing causes electric power line pole tower to collapse, conductor cord disconnection etc. affects the major accident of power system security reliability service, cause electric grid large area power cut, have a strong impact on industrial and agricultural production and people's lives, and cause tremendous economic to lose.
Ultra-high-tension power transmission line is anti-icing, ice-melt and deicing are the focus paid close attention to both at home and abroad always.The anti-icing technology of existing deicing high-voltage power transmission line is still immature, can not meet the requirement of large area anti-icing and deicing, though part clearing ice technology can be applied in engineering, need carry out under additional equipment or manual operation instruct.The anti-icing transmission line of a kind of multiple conducting wires disclosed in the Chinese invention patent Publication Specification of publication number CN101527442A, it increases ice-melt switch at the two ends of multiple conducting wires transmission line, each wire equal normal power-up when not needing ice-melt, interruption of power supply when needing ice-melt after icing, take the mode of manual operation switch, make a wire transmission electric current, all the other wires disconnect, and manual operation progressively makes the ice sheet of each wire melt.The method needs to set up switching device, change the structure of transmission line, the necessary interruption of power supply of deicing processes, ice-melt there is potential safety hazard and operation is extremely inconvenient, ice-melt cost is high, and ice-melt starts and stops all needing artificial Subjective Intervention, can not treat icing line segment in various degree with a certain discrimination and realize anti-icing in real time, infeasible for supertension line breaker deciliter wire, particularly can not meet the anti-icing of ultra high voltage bundle conductor, the and for example a kind of automatic ice melting method for multiple division electricity transmission line disclosed in Chinese invention patent of publication number CN101459327 and special switch thereof, it adopts to install special switch in icing transmission line two ends transformer station, then manual remote control sends instruction, make special switch generation action realize transmission line electric current and be all transferred to the sub-conductor treating ice-melt, this sub-conductor generates heat, ice-melt, this patent of invention needs the on-the-spot circuit of artificial judgment whether to there is icing, and need power scheduling department to coordinate adjusting circuit load, last manual remote control at the scene sends ice-melt instruction, cannot realize needing sectional and real-time intelligent ice-melt according to icing degree, the local icing section technical staff such as micro climate microclimate are difficult to be on the scene observation icing situation and send ice-melt instruction.
Summary of the invention
The object of this invention is to provide a kind of current cycle intelligence deicing device being applied to tripartition wire transmission line, the measurement result of its environmentally condition and ice coating state, auto-controlled circuit breaker opening and closing, the load current of tripartition wire Transmission Lines is transferred to single sub-conductor respectively, increases sub-conductor current density and reach ice-melt object.
The object of the invention is by such technical scheme realize, it includes three current input terminal R, three current output terminal S and the current cycle intelligence deicing device main body be arranged between current input terminal and current output terminal, described current cycle intelligence deicing device main body includes the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and the insulation output board being provided with current output terminal, three current input terminal R are fixed on and conflux on conductive plate, conflux between conductive plate with shunting conductive plate and be connected by the primary winding contact rod as electricity-getting mutual inductor, shunting conductive plate is provided with three conducting rods, three conducting rods are connected on reference voltage plate through division board, the circuit breaker of three band by-pass switches is provided with between insulation output board and division board, arc control device one end of each circuit breaker is all fixed with insulation output board and is connected to a corresponding current output terminal S, the arc control device other end of circuit breaker is through reference voltage plate, and be connected with the actuator of a circuit breaker, shunting conductive plate is also provided with intelligent controller and built-in icing parameter monitoring unit, intelligent controller and built-in icing parameter monitoring unit are between division board and shunting conductive plate, intelligent controller is electrically connected with built-in icing parameter monitoring unit and actuator respectively.
Further, described intelligent controller, actuator and built-in icing parameter monitoring unit are powered by the electricity-getting mutual inductor being benchmark with reference voltage plate.
Further, described circuit breaker and by-pass switch all arrange independently actuator.
Further, described device also includes external icing parameter monitoring unit, external icing parameter monitoring unit is used for monitoring of environmental parameter, conductor temperature, current in wire and wire icing loading condition, and the data monitored are sent to intelligent controller by communication.
Further, described shunting conductive plate includes insulation daughter board and conduction daughter board, and conduction daughter board is embedded in the center of insulation daughter board, conduction daughter board is provided with three for through the hole of conducting rod and one for installing the hole of electricity-getting mutual inductor.
Further, described device also includes two respectively successively through the insulating bar of the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and insulation output board.
Further, described device also includes insulation crust, and the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and insulation output board are installed in insulation crust.
Owing to have employed technique scheme, the present invention has following advantage:
The present invention can by the icing parameter monitoring unit inspection of built-in and external two kinds of modes to external environment condition judge whether to occur icing phenomenon, intelligent controller controls the folding of circuit breaker, the load current of tripartition wire Transmission Lines is transferred on a part of sub-conductor, increase sub-conductor current density and reach ice-melt object, intelligent controller calculates the ice-melt time automatically according to the load current of power taking sensor measurement and external environment condition parameter, after the complete ice-melt of this parton wire, control circuit breaker electric current to be transferred to successively on another part sub-conductor, come off until three root conductive line surfaces ice sheets all melt, then normal operating conditions is recovered.In the course of the work, controlled by intelligent controller entirety, the criterion of intelligent controller work is provided by the icing parameter monitoring unit of electricity-getting mutual inductor and built-in and external two kinds of modes, can realize the transmission line de-icing work that prosthetic is intervened in the present invention.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by specification below and claims and be obtained.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is structural representation of the present invention;
Fig. 2 is workflow diagram of the present invention;
Fig. 3 is the program control block diagram of intelligent controller;
Fig. 4 is shunting conductive plate structure schematic diagram.
In figure: 1. conflux conductive plate; 2. electricity-getting mutual inductor; 3. shunt conductive plate; 4. division board; 5. reference voltage plate; 6. insulate output board; 7. conducting rod; 8. built-in icing parameter monitoring unit; 9. intelligent controller; 10. circuit breaker; 11. by-pass switches; 12. actuators; 13. conduction daughter boards; 14. insulation daughter boards; 15. insulation crusts; 16. insulating bars.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the transmission current of each for tripartition wire sub-conductor is concentrated through the conductive plate 1 that confluxes by current input terminal R, electricity-getting mutual inductor 2 is utilized to measure tripartition wire Transmission Lines electric current total value, reference voltage plate 5 is transferred to through shunting conductive plate 3 and conducting rod 7, reference voltage plate 5 is connected to one end of all circuit breakers 10 and by-pass switch in parallel 11, the other end of circuit breaker 10 and by-pass switch 11 respectively connected the sub-conductor current output terminal S being fixed on insulation output board 6, and each root wire correspondence is connected to a circuit breaker 10 and a by-pass switch 11 in parallel, three circuit breaker 10 initial conditions are closure state, three by-pass switch 11 initial conditions in parallel are in the state of cut-offfing.Intelligent controller 9, according to external icing parameter monitoring unit and built-in icing parameter monitoring unit 8 measurement result and built-in control program, sends and whether starts ice-melt instruction.Division board 4 is for carrying out isolation and protection by actuator 12 with intelligent controller 9, built-in icing parameter monitoring unit 8.Reference voltage plate 5 is power voltage references points of electricity-getting mutual inductor, and electricity-getting mutual inductor is actuator 12, built-in icing parameter monitoring unit 8 and intelligent controller 9 provide working power.By-pass switch 11 provided current channel when circuit breaker 10 loses efficacy.Insulating bar 16 respectively connected the conductive plate 1 that confluxes, shunting conductive plate 3, division board 4, reference voltage plate 5 and insulation output board 6, fixes and install location for machinery.
As shown in Figure 4, shunting conductive plate 3 includes insulation daughter board 14 and conduction daughter board 13, conduction daughter board 13 is embedded in the center of insulation daughter board 3, conduction daughter board 13 is provided with three for the hole through conducting rod 7, and the heart arranges one for installing the hole of electricity-getting mutual inductor 2 primary conductive rod wherein.
If intelligent controller 9 judges not need to start ice-melt, then intelligent controller 9 sends instruction to actuator 12, and actuator determines that circuit breaker 10 and by-pass switch 11 remain on initial condition, and each sub-conductor of tripartition is run by under normal transmission current status.
When intelligent controller 9 judges to need to start ice-melt, by controlling the switch of respective circuit breakers, following ice-melting mode can be performed:
1) according to the measurement result of the load current of built-in and external environmental parameter, ice coating state and the power taking sensor measurement of device, utilize tripartition wire transmission line current cycle intelligence deicing device that Transmission Lines electric current is automatically transferred to sub-conductor I, sub-conductor I electric current is increased, generates heat, load current according to ice coating state and power taking sensor measurement calculates the ice-melt time automatically, melts the ice sheet of this sub-conductor within the time automatically calculated.If intelligent controller 9 judges to need to start ice-melt, then intelligent controller 9 sends instruction to actuator 12, then determine sub-conductor II by actuator 12, circuit breaker 10 action that sub-conductor III connects " cut-offs " and make tripartition wire Transmission Lines current transfer on sub-conductor I, make that sub-conductor I generates heat, ice-melt, determine the ice-melt time by intelligent controller 9.
2) ice sheet of sub-conductor I melts end, Transmission Lines current intelligent is transferred to sub-conductor II by tripartition wire transmission line current cycle deicing device automatically, this sub-conductor electric current is increased, generates heat, load current according to ice coating state and power taking sensor measurement calculates the ice-melt time automatically, melts the ice sheet of this sub-conductor within the time automatically calculated.Step 1) in, if sub-conductor I ice-melt terminates, instruction is sent to actuator 12 by intelligent controller 9, first circuit breaker 10 action making sub-conductor II connect " closes ", then circuit breaker 10 action that sub-conductor I connects " is cut-off ", then tripartition wire Transmission Lines current transfer is on sub-conductor II, makes that sub-conductor II generates heat, ice-melt, determines the ice-melt time by intelligent controller 9.
3) ice sheet of sub-conductor II melts end, Transmission Lines current intelligent is transferred to sub-conductor III by tripartition wire transmission line current cycle deicing device automatically, this sub-conductor electric current is increased, generates heat, load current according to ice coating state and power taking sensor measurement calculates the ice-melt time automatically, melts the ice sheet of this sub-conductor within the time automatically calculated.Step 2) in, if sub-conductor II ice-melt terminates, instruction is sent to actuator 12 by intelligent controller 9, first circuit breaker 10 action making sub-conductor III connect " closes ", then circuit breaker 10 action that sub-conductor II connects " is cut-off ", then tripartition wire Transmission Lines current transfer is on sub-conductor III, makes that sub-conductor III generates heat, ice-melt, determines the ice-melt time by intelligent controller 9.
4) when the whole ice-melt of ice sheet of three root wires terminates, intelligent apparatus recovers the conducting state of normal transmission electric current, waits for next icing process and starts deicing processes next time, in this way reaching the object of cyclic deicing.
As shown in Figure 2, external icing parameter monitoring unit Real-Time Monitoring environmental parameter, conductor temperature, current in wire and wire icing loading condition, and by above-mentioned parameter wirelessly real-time Transmission to intelligent controller 9, built-in icing parameter monitoring unit 8 Real-Time Monitoring environmental parameter, conductor temperature, current in wire and wire icing loading condition, and above-mentioned parameter is passed through wired mode real-time Transmission to intelligent controller 9, intelligent controller 9 is according to external icing parameter monitoring unit, the data that built-in icing parameter monitoring unit 8 and electricity-getting mutual inductor 2 provide, instruction to determine circuit breaker 10 and by-pass switch in parallel 11 operating state to actuator 12 is sent according to built-in control program.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.

Claims (7)

1. tripartition wire transmission line current cycle intelligence deicing device, it is characterized in that: described device includes three current input terminal R, three current output terminal S and the current cycle intelligence deicing device main body be arranged between current input terminal and current output terminal, described current cycle intelligence deicing device main body includes the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and the insulation output board being provided with current output terminal, three current input terminal R are fixed on and conflux on conductive plate, conflux between conductive plate with shunting conductive plate and be connected by the primary winding contact rod as electricity-getting mutual inductor, shunting conductive plate is provided with three conducting rods, three conducting rods are connected on reference voltage plate through division board, the circuit breaker of three band by-pass switches is provided with between insulation output board and division board, arc control device one end of each circuit breaker is all fixed with insulation output board and is connected to a corresponding current output terminal S, the arc control device other end of circuit breaker is through reference voltage plate, and be connected with the actuator of a circuit breaker, shunting conductive plate is also provided with intelligent controller and built-in icing parameter monitoring unit, intelligent controller and built-in icing parameter monitoring unit are between division board and shunting conductive plate, intelligent controller is electrically connected with built-in icing parameter monitoring unit and actuator respectively.
2. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, is characterized in that: described intelligent controller, actuator and built-in icing parameter monitoring unit are powered by the electricity-getting mutual inductor being benchmark with reference voltage plate.
3. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, is characterized in that: described circuit breaker and by-pass switch all arrange independently actuator.
4. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, it is characterized in that: described device also includes external icing parameter monitoring unit, external icing parameter monitoring unit is used for monitoring of environmental parameter, conductor temperature, current in wire and wire icing loading condition, and the data monitored are sent to intelligent controller by communication.
5. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, it is characterized in that: described shunting conductive plate includes insulation daughter board and conduction daughter board, conduction daughter board is embedded in the center of insulation daughter board, conduction daughter board is provided with three for through the hole of conducting rod and one for installing the hole of electricity-getting mutual inductor.
6. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, is characterized in that: described device also includes two respectively successively through the insulating bar of the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and insulation output board.
7. tripartition wire transmission line current cycle intelligence deicing device as claimed in claim 1, it is characterized in that: described device also includes insulation crust, the conductive plate that confluxes, shunting conductive plate, division board, reference voltage plate and insulation output board are installed in insulation crust.
CN201310021108.4A 2013-02-16 2013-02-16 Current circulating smart ice melting device of three-bundle-conductor electric transmission line CN103066543B (en)

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CN109405881B (en) * 2018-10-30 2020-04-28 重庆理工大学 Power transmission line icing monitoring device based on ice layer dielectric property and rotating conductor

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CN101431224A (en) * 2008-12-12 2009-05-13 武汉大学 De-icing technology for overhead transmission line
CN101710683A (en) * 2009-12-25 2010-05-19 重庆大学 Intelligent circulation anti-icing method for transmitting current by split lead

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