CN202260346U - Alternating current (AC) ice-melting device with controllable output voltage - Google Patents

Alternating current (AC) ice-melting device with controllable output voltage Download PDF

Info

Publication number
CN202260346U
CN202260346U CN2011203528054U CN201120352805U CN202260346U CN 202260346 U CN202260346 U CN 202260346U CN 2011203528054 U CN2011203528054 U CN 2011203528054U CN 201120352805 U CN201120352805 U CN 201120352805U CN 202260346 U CN202260346 U CN 202260346U
Authority
CN
China
Prior art keywords
ice
melting
output
melt
interchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203528054U
Other languages
Chinese (zh)
Inventor
陆佳政
谭艳军
李波
方针
张红先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
Hu'nan Huicui Electric Power Technology Co Ltd
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hu'nan Huicui Electric Power Technology Co Ltd, Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd filed Critical Hu'nan Huicui Electric Power Technology Co Ltd
Priority to CN2011203528054U priority Critical patent/CN202260346U/en
Application granted granted Critical
Publication of CN202260346U publication Critical patent/CN202260346U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model relates to an alternating current (AC) ice-melting device with controllable output voltage, which consists of an AC ice-melting input switch (1), an AC ice-melting device (2) with controllable output, a control system (3), a matched impedance (4) and an AC ice-melting output switch (5), wherein an input end of the AC ice-melting device (2) with controllable output is connected with the AC ice-melting input switch (1) and the control system (3) in parallel; and one end of the matched impedance (4) is electrically connected with an output end of the AC ice-melting device (2) with controllable output, and the other end of the matched impedance (4) is electrically connected with the AC ice-melting output switch (5). The AC ice-melting device with controllable output voltage is suitable for ice-melting treatment of power transmission circuits with different models, is capable of guaranteeing the ice-melting work to be smoothly carried out while reducing the power capacity and the safety risk, and is qualified for the ice-melting work of the power transmission circuit within the range of 20kilometers every time.

Description

The controlled interchange deicing device of output voltage
Technical field
The utility model belongs to the electrical engineering technical field, relates in particular to the controlled interchange deicing device of a kind of output voltage, and this device is applicable to that the transmission line behind the icing is launched to exchange ice-melt to be handled, to avoid behind powerline ice-covering broken string even the accident of falling the tower taking place.
Background technology
In recent years, blocked up because of transmission line icing in winter, cause broken string even fall the serious accident of tower and take place repeatedly.With in January, 2008 be example, occur in the electrical network ice damage that Hunan China is economized, cause a large amount of transmission line broken strings of falling the tower, billions of yuans of direct economic losses, and had a strong impact on the safe operation of electrical network and the masses' normal life.Therefore, in transmission line formation icing, in time it is carried out ice-melt and handle, peel off or eliminate icing, prevent rupture of line and fall tower, guarantee that the safe operation ten minutes of transmission line is necessary.Yet the deicer that adopts at present is a kind of deicing device that utilizes the design of ac short circuit method.Use this device will carry out circuit series impedance coupling, load transfer and a large amount of on-the-spot grid switching operations; Very complicated; Operating difficulties; When the serious icing of electric grid large area, also ice-melt work can not on electrical network, be launched effectively, so be difficult to protect effectively the security of operation of electrical network comprehensively and in real time.
The utility model content
The technical problem that the utility model will solve is: to the backward situation of prior art; Design the controlled interchange deicing device of a kind of output voltage; The circuit series connection coupling that do not need this device can realize the changeable power station of full electric network, many transmission line ice-melts simultaneously, so the transmission line of this device capable of using after to icing carries out the ice-melt processing, reduces the incidence of the broken string of falling tower accident behind the electrical network icing greatly; Significantly reduce on-the-spot grid switching operation, avoid network load to shift.
The technical solution of the utility model is; Referring to accompanying drawing 1; The controlled interchange deicing device of said output voltage is as shown in Figure 1, by exchanging the controlled interchange deicing device of ice-melt input switch 1, output 2, control system 3, matched impedance 4, exchanging ice-melt output switch 5 and form.The input parallel connection of the controlled interchange deicing device 2 of wherein said output exchanges ice-melt input switch 1 and control system 3; The two ends of said matched impedance 4, wherein an end electricity connects the output of the controlled interchange deicing device 2 of output, and other end electricity connects and exchanges ice-melt output switch 5.
The operation principle of the utility model is: when powerline ice-covering, the controlled interchange deicing device 2 of the output of the utility model circuit is passed through to exchange the 10kV three-phase ice-melt power supply that ice-melt input switch 1 inserts in the electrical network.Utilize the controlled interchange deicing device 2 of output that the 10kV voltage drop is low to moderate zone of reasonableness, for example the 3000V alternating voltage.Above-mentioned 10kV three phase mains gets into matched impedance 4 and is transported to transmission line and carries out ice-melt through exchanging ice-melt output switch 5 again after exporting controlled interchange deicing device 2 step-downs.The effect of matched impedance 4 is that transmission line induction reactance value is eliminated through the mode of matched impedance, thereby reduces line impedance, realizes reducing the purpose that transmission line exchanges the ice-melt power supply capacity.The function of exporting controlled interchange deicing device 2 is that the 10kV three-phase alternating-current supply is changed into suitable voltage, then this AC power is added on the transmission line, utilizes the heating effect behind the lead galvanization to melt icing.Because transmission line is different in size, model is different; Therefore; The controlled interchange deicing device 2 of 3 pairs of above-mentioned outputs of control system capable of using is rationally regulated; To guarantee that output AC power source can satisfy transmission line ice-melt requirement, prevent that the alternating current of overtension from burning out lead, prevent that also the alternating current of brownout from can't melt the ice sheet on the lead simultaneously.The transmission line ice-melt that the controlled interchange deicing device of a kind of output voltage of the utility model can be competent in the 20 kilometers/underrange is handled.
When the transmission line length of needs thawing icing surpasses 20 kilometers; Can be according to the controlled configurations parameter that exchanges deicing device 2 of transmission line physical length and ice-melt desired volume adjustment output, under the constant fully situation of principle, satisfy the ice-melt work of any circuit random length.Use the capacity that the controlled interchange deicing device of a kind of output voltage of the utility model can reduce the ice-melt power supply greatly.This be because, transmission line, LGJ-400 type lead for example commonly used, its resistance is 0.074 ohm/kilometer, its reactance is 0.415 ohm/kilometer, calculating its impedance is 0.422 ohm/kilometer.So when transmission line length was 20 kilometers, if getting ice melting current is 1000 amperes, then calculating desired volume was 8.44 * 10 6Volt-ampere adopts the ice-melt of this device, and reactance is inoperative, and when ice melting current still is 1000 ampere-hours, required capacity is through being calculated as 1.48 * 10 6The volt-ampere, be merely traditional deicing device capacity 1/6.
The beneficial effect of the utility model is:
1) regulates through system, can carry out ice-melt the transmission line of different length;
2) its matched impedance makes transmission line in that exist under the situation of induced voltage also can normal through-flow ice-melt;
3) but this device multiply-computer series connection, to adapt to the demand of different length transmission line ice-melt;
4) owing to adopt the matched impedance module, the reactive component of transmission line will drop to bottom line, so make the capacity of ice-melt power supply reduce greatly;
5) remove troublesome operation such as the required circuit serial connection of conventional AC ice-melting mode and load transfer from, thereby greatly reduced issuable thus security risk;
Description of drawings
Fig. 1 is the structured flowchart of a specific embodiment of the utility model, is denoted as among the figure:
1-exchanges the ice-melt input switch,
2-exports controlled interchange deicing device,
The 3-control system,
The 4-matched impedance,
5-exchanges ice-melt output switch.
Embodiment
Referring to concrete embodiment of the controlled interchange deicing device of a kind of output voltage of the utility model shown in Figure 1; The interchange ice-melt input switch 1 of this embodiment and the GW1-12/2000A type isolating switch that exchanges the production of ice-melt output switch 5 employing Hunan China province Changsha Electrical Equipment Switch Co., Ltd.; Exporting controlled interchange deicing device 2 adopts the HGJR-10.5/1000 type of Hunan China province pure Power Tech Corp. Inc. of remittance development to export controlled interchange deicing device; The HGJR-2009K type control system that control system 3 employing Hunan China province pure Power Tech Corp. Inc. of remittance develop, matched impedance 4 adopts Hunan China province pure Power Tech Corp. Inc. of remittance and Chinese Shaanxi to close the TCB8.7-26100/290 type matched impedance of appearance Electric Applicance Co., Ltd joint research and development.
The controlled interchange deicing device of above-mentioned interchange ice-melt input switch 1, output 2, control system 3, matched impedance 4, exchange ice-melt output switch 5 and form the controlled interchange deicing device of output voltage by circuit shown in Figure 1, the input parallel connection of promptly exporting controlled interchange deicing device 2 exchanges ice-melt input switch 1 and control system 3; The two ends of matched impedance 4, an end electricity connect the output of the controlled interchange deicing device 2 of output, and other end electricity connects and exchanges ice-melt output switch 5.This device proving effect after simulation calculation and analogue test is good; Esy to use, safe and reliable; Reach designing requirement fully, the ice-melt that can adapt to the different model transmission line is handled, and power supply capacity reduces; Security risk reduces and ice-melt work is unblocked, can be competent at the transmission line ice-melt in the 20 kilometers/underrange.

Claims (1)

1. controlled interchange deicing device of output voltage; It is characterized in that; It is made up of interchange ice-melt input switch (1), output controlled interchange deicing device (2), control system (3), matched impedance (4), interchange ice-melt output switch (5), the input parallel connection interchange ice-melt input switch (1) and the control system (3) of the controlled interchange deicing device of wherein said output (2); The two ends of said matched impedance (4), wherein an end electricity connects the output of the controlled interchange deicing device of output (2), and other end electricity connects and exchanges ice-melt output switch (5).
CN2011203528054U 2011-09-20 2011-09-20 Alternating current (AC) ice-melting device with controllable output voltage Expired - Fee Related CN202260346U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203528054U CN202260346U (en) 2011-09-20 2011-09-20 Alternating current (AC) ice-melting device with controllable output voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203528054U CN202260346U (en) 2011-09-20 2011-09-20 Alternating current (AC) ice-melting device with controllable output voltage

Publications (1)

Publication Number Publication Date
CN202260346U true CN202260346U (en) 2012-05-30

Family

ID=46121531

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203528054U Expired - Fee Related CN202260346U (en) 2011-09-20 2011-09-20 Alternating current (AC) ice-melting device with controllable output voltage

Country Status (1)

Country Link
CN (1) CN202260346U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106207925A (en) * 2016-07-25 2016-12-07 国网湖南省电力公司 A kind of distribution network line ice melting system and de-icing method thereof
CN107482530A (en) * 2017-09-20 2017-12-15 湖南省湘电试研技术有限公司 Based on the Portable rural distribution exchange de-icing method and device for handing over orthogonal Two Stages

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106207925A (en) * 2016-07-25 2016-12-07 国网湖南省电力公司 A kind of distribution network line ice melting system and de-icing method thereof
CN107482530A (en) * 2017-09-20 2017-12-15 湖南省湘电试研技术有限公司 Based on the Portable rural distribution exchange de-icing method and device for handing over orthogonal Two Stages

Similar Documents

Publication Publication Date Title
US9972988B2 (en) Multi-functional direct current ice melting automatic switching circuit and switching method thereof
CN101604833B (en) Ground wire deicing device capable of combined use
CN101847856A (en) Power transmission line direct current ice melting device based on twelve pulse wave uncontrollable rectification
CN201438633U (en) Direct-current thawing device for 10kV transmission and distribution lines
CN101794977B (en) Long-distance transmission line deicing method and device
CN202260346U (en) Alternating current (AC) ice-melting device with controllable output voltage
CN204244102U (en) A kind of electric power transmission line 10KV power cable deicing device
CN101436768A (en) Power line DC ice-melting device
CN201623436U (en) Direct-current ice melting device capable of being multiplexed into TSC
CN110932215A (en) System and method for deicing overhead line by using photovoltaic power generation
CN201234105Y (en) Ice melting device for electricity transmission line
CN101436769B (en) Mobile power line DC ice-melting device
CN201234103Y (en) Transmission line DC ice melting device capable of combined use
CN202633874U (en) Ice melting system capable of switching alternating current and direct current
CN106058777B (en) A kind of extra high voltage line ice melting system and its automatic ice melting method
CN108832539A (en) A kind of online de-icing method using the energy storage device optimization transmission line of electricity method of operation
CN201918684U (en) Ice melting device for power transmission lines
CN202957555U (en) Alternating current ice melting device of power distribution line
CN202633873U (en) Portable ultrashort-distance direct current ice-melting device of agriculture electric power distribution network
CN102931621B (en) Alternating-current ice melting device for distribution line
CN201436754U (en) Ground wire ice-thawing device capable of being used combinedly
CN100511900C (en) DC power guiding transmission deicing operation method
CN211239260U (en) System for deicing overhead line by using photovoltaic power generation
CN205863868U (en) A kind of extra high voltage line ice melting system
CN201234104Y (en) Moving DC ice melting device for electricity transmission line

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HU'NAN HUICUI ELECTRIC TECHNOLOGY CO., LTD. STATE

Free format text: FORMER OWNER: HU'NAN HUICUI ELECTRIC TECHNOLOGY CO., LTD.

Effective date: 20121012

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20121012

Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee after: SCIENCE RESEARCH INSTITUTE OF HUNAN ELECTRIC POWER Co.,Ltd.

Patentee after: HUNAN HUICUI ELECTRIC POWER TECHNOLOGY Co.,Ltd.

Patentee after: State Grid Corporation of China

Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee before: SCIENCE RESEARCH INSTITUTE OF HUNAN ELECTRIC POWER Co.,Ltd.

Patentee before: HUNAN HUICUI ELECTRIC POWER TECHNOLOGY Co.,Ltd.

ASS Succession or assignment of patent right

Owner name: INSTITUTE OF ELECTRIC POWER SCIENCES OF STATE GRID

Free format text: FORMER OWNER: HU'NAN HUICUI ELECTRIC POWER TECHNOLOGY CO., LTD. STATE GRID CORPORATION OF CHINA

Effective date: 20140618

Owner name: STATE GRID CORPORATION OF CHINA

Free format text: FORMER OWNER: INSTITUTE OF ELECTRIC POWER SCIENCES OF STATE GRID HUNAN ELECTRIC POWER COMPANY

Effective date: 20140618

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: INSTITUTE OF ELECTRIC POWER SCIENCES OF STATE GRID

Free format text: FORMER NAME: HU'NAN ELECTRIC POWER COMPANY RESEARCH ACADEMY

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 410007 CHANGSHA, HUNAN PROVINCE TO: 100033 DONGCHENG, BEIJING

CP01 Change in the name or title of a patent holder

Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Patentee after: HUNAN HUICUI ELECTRIC POWER TECHNOLOGY Co.,Ltd.

Patentee after: State Grid Corporation of China

Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee before: SCIENCE RESEARCH INSTITUTE OF HUNAN ELECTRIC POWER Co.,Ltd.

Patentee before: HUNAN HUICUI ELECTRIC POWER TECHNOLOGY Co.,Ltd.

Patentee before: State Grid Corporation of China

TR01 Transfer of patent right

Effective date of registration: 20140618

Address after: 100033 No. 86 West Chang'an Avenue, Beijing

Patentee after: State Grid Corporation of China

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha

Patentee before: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Patentee before: HUNAN HUICUI ELECTRIC POWER TECHNOLOGY Co.,Ltd.

Patentee before: State Grid Corporation of China

ASS Succession or assignment of patent right

Owner name: STATE GRID HUNAN ELECTRIC POWER COMPANY DISASTER P

Free format text: FORMER OWNER: INSTITUTE OF ELECTRIC POWER SCIENCES OF STATE GRID HUNAN ELECTRIC POWER COMPANY

Effective date: 20150526

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100031 DONGCHENG, BEIJING TO: 100031 XICHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20150526

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: STATE GRID HUNAN ELECTRIC POWER Co.

Patentee after: STATE GRID HUNAN ELECTRIC COMPANY DISASTER PREVENTION AND REDUCTION CENTER

Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

Address before: 100031 West Chang'an Avenue, Beijing, No. 86

Patentee before: State Grid Corporation of China

Patentee before: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20180920