CN103050918B - Intelligent device for circularly melting ice on power transmission line with four split sub-conductors by current - Google Patents
Intelligent device for circularly melting ice on power transmission line with four split sub-conductors by current Download PDFInfo
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Abstract
The invention relate to an intelligent device for circularly melting ice on a power transmission line with four split sub-conductors by current. The external environment condition is monitored to judge whether the power transmission line is iced up or not, and an intelligent controller controls a circuit breaker to switch on and off to transfer the total current transmitted by the power transmission line to one part of the four sub-conductors so as to increase the current density of the sub-conductors and achieve the purpose of melting ice. The intelligent controller adopts the load current measured by a current inducer, the icing state measured by an icing-parameter monitoring unit and the external environment condition to automatically compute the time spent on melting ice, controls the circuit breaker to transfer the current to the other part of the sub-conductors after the ice on one part of the sub-conductors is melted and returns to the normal work state until the ice on the four split sub-conductors is completely melted and shed. During the working of the intelligent device, the intelligent controller is used for controlling integrally. The work standard of the intelligent controller is judged by the current inducer, the icing-parameter monitoring unit and the external environment condition. The intelligent device can be used for melting and removing the ice on the power transmission line without manual intervention.
Description
Technical field
The present invention relates to Voltage Power technical field, particularly a kind of ultra-high-tension power transmission line deicing device for conductors on quad bundled.
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 conductors on quad bundled transmission line, the measurement result of its environmentally condition and ice coating state, auto-controlled circuit breaker opening and closing, the load current of conductors on quad bundled 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 four current input terminal R, four 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, four 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 four conducting rods, four conducting rods are connected on reference voltage plate through division board, the circuit breaker of four 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 four 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 conductors on quad bundled 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 four 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 conductors on quad bundled 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 conductors on quad bundled 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, four circuit breaker 10 initial conditions are closure state, four 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 four 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 quadripartion 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:
Ice-melting mode one
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, conductors on quad bundled transmission line current cycle intelligence deicing device is utilized Transmission Lines electric current to be automatically transferred to wherein sub-conductor I and sub-conductor II, this two sub-conductors 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.Intelligent controller 9 sends instruction to actuator 12, then determine sub-conductor III by actuator 12, circuit breaker 10 action that sub-conductor IV connects " cut-offs " and make conductors on quad bundled Transmission Lines current transfer to wire I and sub-conductor II, make that wire I and sub-conductor II generate heat, ice-melt, determine the ice-melt time by intelligent controller 9.
2) ice sheet of sub-conductor I and sub-conductor II melts end, Transmission Lines current intelligent is transferred to sub-conductor III, sub-conductor IV by conductors on quad bundled transmission line current cycle deicing device automatically, this two sub-conductors 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 and sub-conductor II ice-melt terminate, instruction is sent to actuator 12 by intelligent controller 9, first make sub-conductor III, circuit breaker 10 action that sub-conductor IV connects " closes ", then circuit breaker 10 action that sub-conductor I is connected with sub-conductor II " is cut-off ", then conductors on quad bundled Transmission Lines current transfer is to sub-conductor III, sub-conductor IV, makes sub-conductor III, sub-conductor IV generates heat, ice-melt, determines the ice-melt time by intelligent controller 9.
3) when the whole ice-melt of ice sheet of 4 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.
Ice-melting mode two
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 conductors on quad bundled transmission line current cycle intelligence deicing device that Transmission Lines electric current is automatically transferred to wherein sub-conductor I, 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.
2) sub-conductor I ice sheet melts end, 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 conductors on quad bundled transmission line current cycle intelligence deicing device that Transmission Lines electric current is automatically transferred to wherein sub-conductor II, 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.
3) ice sheet of sub-conductor II melts end, 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 conductors on quad bundled transmission line current cycle intelligence deicing device that Transmission Lines electric current is automatically transferred to wherein sub-conductor III, 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.
4) ice sheet of sub-conductor III melts end, 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 conductors on quad bundled transmission line current cycle intelligence deicing device that Transmission Lines electric current is automatically transferred to wherein sub-conductor IV, 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.
5) when the whole ice-melt of ice sheet of 4 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. conductors on quad bundled transmission line current cycle intelligence deicing device, it is characterized in that: described device includes four current input terminal R, four 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, four 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 four conducting rods, four conducting rods are connected on reference voltage plate through division board, the circuit breaker of four 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. conductors on quad bundled 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. conductors on quad bundled 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. conductors on quad bundled 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. conductors on quad bundled 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 four for through the hole of conducting rod and one for installing the hole of electricity-getting mutual inductor.
6. conductors on quad bundled 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. conductors on quad bundled 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.
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| CN201310021120.5A CN103050918B (en) | 2013-02-16 | 2013-02-16 | Intelligent device for circularly melting ice on power transmission line with four split sub-conductors by current |
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| CN201310021120.5A CN103050918B (en) | 2013-02-16 | 2013-02-16 | Intelligent device for circularly melting ice on power transmission line with four split sub-conductors by current |
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| CN103050918A CN103050918A (en) | 2013-04-17 |
| CN103050918B true CN103050918B (en) | 2015-04-08 |
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| CN113471769B (en) * | 2021-07-07 | 2024-04-02 | 贵州电网有限责任公司 | Split conductor current circulation ice melting combiner |
| CN113777384B (en) * | 2021-09-28 | 2023-12-12 | 南方电网数字电网研究院有限公司 | Method, device, computer equipment and storage medium for detecting four split conductor current |
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| CN101162831A (en) * | 2007-10-12 | 2008-04-16 | 龚良贵 | Divided conductor powerline with loading ice melting scheme |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007166836A (en) * | 2005-12-15 | 2007-06-28 | Tokyo Electric Power Services Co Ltd | Snow and ice falling-off prevention device |
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| CN101162831A (en) * | 2007-10-12 | 2008-04-16 | 龚良贵 | Divided conductor powerline with loading ice melting scheme |
| 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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