CN102684129A - Ice melting system capable of switching AC between DC - Google Patents

Ice melting system capable of switching AC between DC Download PDF

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Publication number
CN102684129A
CN102684129A CN2012101793853A CN201210179385A CN102684129A CN 102684129 A CN102684129 A CN 102684129A CN 2012101793853 A CN2012101793853 A CN 2012101793853A CN 201210179385 A CN201210179385 A CN 201210179385A CN 102684129 A CN102684129 A CN 102684129A
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CN
China
Prior art keywords
direct current
output
ice
isolator
input
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.)
Pending
Application number
CN2012101793853A
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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
Hunan Xiangdian Test Research Institute Co Ltd
Original Assignee
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
Hunan Xiangdian Test Research Institute 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 Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd, Hunan Xiangdian Test Research Institute Co Ltd filed Critical Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
Priority to CN2012101793853A priority Critical patent/CN102684129A/en
Publication of CN102684129A publication Critical patent/CN102684129A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an ice melting system capable of switching AC between DC. According to the invention, the output end of an AC ice melting switch (1) is connected with the input end of an AC ice melting unit (2); the AC ice melting unit (2) is connected in parallel with the output end of a DC output isolator (3); the input end of the DC output isolator (3) is connected with the output end of a DC ice melting unit (4); the input end of the DC ice melting unit (4) is connected with the output end of a DC input isolator (5); the DC input isolator (5) is connected in parallel with the input end of the AC ice melting unit (5) and connected with an external power supply when in use; and a connecting line of the AC ice melting unit (2) and the DC output isolator (3) is connected with an external power transmission line, and carries out ice melting with AC or DC. The ice melting system has the advantages of wide application range, device reduction, simple structure, less investment, small occupied area, simplicity in operation and convenience in maintenance.

Description

Changeable alternating current and galvanic ice melting system
Technical field
The invention belongs to the electrical engineering technical field, relate in particular to a kind of changeable alternating current and galvanic ice melting system.
Background technology
China's southern area ice damage outburst is frequent, makes the broken string of falling the tower phenomenon of grid power transmission circuit particularly heavy, has brought enormous economic loss to power grid enterprises, has had a strong impact on the development and national economy and the people's ordinary production and life simultaneously.
For resisting the ice damage of transmission line, the mature methods that China is used for the transmission line ice-melt at present mainly contains de-icing method and the DC ice melting method of exchanging.These two kinds of methods respectively have its merits and demerits, and its scope of application is also respectively arranged.Transformer station has all only installed a kind of deicing device wherein at present, therefore can only adopt a kind of de-icing method wherein to carry out ice-melt, and the scope of application is narrower.Be the scope of application of raising ice-melt, the choose reasonable de-icing method, how developing a kind of ice melting system that can between alternating current ice-melt and direct current ice-melt, switch is a problem demanding prompt solution.
Summary of the invention
The technical problem that the present invention will solve is: be directed against the defective that present transformer station alternating current defroster and direct current defroster can't be shared; A kind of changeable alternating current and galvanic ice melting system are provided; This system can switch between alternating current defroster and direct current defroster; To improve the ice-melt ability, satisfy the multiple demand of ice-melt work.
Technical solution of the present invention is; Said changeable alternating current and galvanic ice melting system; As shown in Figure 1, be electrically connected in regular turn and form by alternating current ice-melt switch 1, alternating current defroster 2, direct current output isolator 3, direct current defroster 4, direct current input isolator 5 head and the tail.The input of the output termination alternating current defroster 2 of wherein said alternating current ice-melt switch 1; The output of said alternating current defroster 2 is parallelly connected with the output of direct current output isolator 3; The output of the input termination direct current defroster 4 of said direct current output isolator 3; The output of the input termination direct current input isolator 5 of said direct current defroster 4; And the input of said direct current input isolator 5 is parallelly connected with the input of said alternating current ice-melt switch 1.External 10kV AC power when the line of the input of the input of this direct current input isolator 5 and said alternating current ice-melt switch 1 uses.Connection electric transmission line and it is carried out the alternating current ice-melt or carry out the direct current ice-melt outward when the parallelly connected line of output of the output of above-mentioned alternating current defroster 2 and direct current output isolator 3 uses.
In the said structure of the present invention, the effect of alternating current ice-melt switch 1 is when needing employing alternating current ice-melting mode the direct current defroster to be switched to the alternating current defroster.The effect of alternating current defroster 2 provides the alternating current ice-melting mode transmission line is carried out ice-melt.The effect of direct current defroster 4 provides the direct current ice-melting mode transmission line is carried out ice-melt.The effect of direct current input isolator 5 is isolation of when adopting the direct current ice-melt direct current defroster 4 being imported.The effect of direct current output isolator 3 is the isolation of when adopting the direct current ice-melt direct current defroster 4 being exported.
The invention has the beneficial effects as follows:
1), can between direct current defroster and alternating current defroster, switch, applied widely;
2), can be shared a cover 10kV AC power and a transmission line ice-melt disconnecting link, minimizing equipment drops into;
3), simple in structure, small investment, area occupied is little;
4), simple to operate, easy to maintenance.
Description of drawings
Fig. 1 is the structured flowchart of a specific embodiment of the present invention, is denoted as among the figure:
1-alternating current ice-melt switch,
2-alternating current defroster,
3-direct current output isolator,
4-direct current defroster,
5-direct current input isolator.
Embodiment
Referring to Fig. 1, shown in Figure 1 is the changeable alternating current of the present invention and concrete embodiment of galvanic ice melting system.The alternating current ice-melt switch 1 of this embodiment adopts Hunan China to economize the HCJQH-10 type 10kV alternating current ice-melt switch that the pure Power Tech Corp. Inc. of remittance produces; Alternating current defroster 2 adopts Hunan China to economize the HCJRB-10 type 10kV alternating current defroster that the pure Power Tech Corp. Inc. of remittance produces; GW1-12.5/2000 type 10.5kV, 2000A isolator that direct current output isolator 3 and direct current input isolator 5 adopt Hunan China province Changsha Electrical Equipment Switch Co., Ltd. to produce; Direct current defroster 4 adopts Hunan China to economize the HCZRB-10/25 type 25MW direct current defroster that the pure Power Tech Corp. Inc. of remittance produces.Above-mentioned alternating current ice-melt switch 1, alternating current defroster 2, direct current output isolator 3, direct current defroster 4, direct current input isolator 5 are by above-mentioned technical solution; Be electrically connected the input of the output termination alternating current defroster 2 of alternating current ice-melt switch 1 wherein in regular turn with reference to head and the tail shown in Figure 1; The output of alternating current defroster 2 is parallelly connected with the output of direct current output isolator 3; The output of the input termination direct current defroster 4 of direct current output isolator 3; The output of the input termination direct current input isolator 5 of direct current defroster 4; The input of direct current input isolator 5 is parallelly connected with the input of alternating current ice-melt switch 1.
When this embodiment uses, the external 10kV AC power of line of the input of the input of its direct current input isolator 5 and alternating current ice-melt switch 1.The outer connection electric transmission line of line of the output of the output of alternating current defroster 2 and direct current output isolator 3 carries out the alternating current ice-melt or carries out the direct current ice-melt.When needing to adopt the direct current ice-melting mode, withdraw from alternating current ice-melt switch 1, drop into direct current input isolator 5 and direct current output isolator 3 simultaneously; And when needs adopt the alternating current ice-melting mode, withdraw from direct current input isolator 5 and direct current output isolator 3, drop into alternating current ice-melt switch 1 simultaneously.
The changeable alternating current of said structure and galvanic ice melting system, proving effect is good, safe and reliable, simple to operate, easy to maintenance after the actual tests operation, reaches designing requirement fully.

Claims (1)

1. a changeable alternating current and galvanic ice melting system; It is characterized in that; It is electrically connected in regular turn and is formed the input of the output termination alternating current defroster (2) of wherein said alternating current ice-melt switch (1) by alternating current ice-melt switch (1), alternating current defroster (2), direct current output isolator (3), direct current defroster (4), direct current input isolator (5) head and the tail; The output of said alternating current defroster (2) is parallelly connected with the output of direct current output isolator (3); The output of the input termination direct current defroster (4) of said direct current output isolator (3); The output of the input termination direct current input isolator (5) of said direct current defroster (4); And the input of said direct current input isolator (5) is parallelly connected with the input of said alternating current ice-melt switch (1).
CN2012101793853A 2012-06-01 2012-06-01 Ice melting system capable of switching AC between DC Pending CN102684129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101793853A CN102684129A (en) 2012-06-01 2012-06-01 Ice melting system capable of switching AC between DC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101793853A CN102684129A (en) 2012-06-01 2012-06-01 Ice melting system capable of switching AC between DC

Publications (1)

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CN102684129A true CN102684129A (en) 2012-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106654984A (en) * 2016-11-07 2017-05-10 湖南省湘电试研技术有限公司 AC/DC hybrid deicing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2316867C1 (en) * 2006-08-11 2008-02-10 Открытое Акционерное Общество "Федеральная Сетевая Компания Единой Энергетической Системы" (Оао "Фск Еэс") Combinatorial ice melting and reactive power correcting installation
CN101325322A (en) * 2008-04-09 2008-12-17 国网直流工程建设有限公司 AC line-feeding deicing connection plan for current-exchanging station
CN101505043A (en) * 2009-03-06 2009-08-12 南方电网技术研究中心 Method for automatically switching between DC ice melting three-phase AC line
CN202633874U (en) * 2012-06-01 2012-12-26 湖南省电力公司科学研究院 Ice melting system capable of switching alternating current and direct current

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2316867C1 (en) * 2006-08-11 2008-02-10 Открытое Акционерное Общество "Федеральная Сетевая Компания Единой Энергетической Системы" (Оао "Фск Еэс") Combinatorial ice melting and reactive power correcting installation
CN101325322A (en) * 2008-04-09 2008-12-17 国网直流工程建设有限公司 AC line-feeding deicing connection plan for current-exchanging station
CN101505043A (en) * 2009-03-06 2009-08-12 南方电网技术研究中心 Method for automatically switching between DC ice melting three-phase AC line
CN202633874U (en) * 2012-06-01 2012-12-26 湖南省电力公司科学研究院 Ice melting system capable of switching alternating current and direct current

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106654984A (en) * 2016-11-07 2017-05-10 湖南省湘电试研技术有限公司 AC/DC hybrid deicing system

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Owner name: HU NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LT

Free format text: FORMER OWNER: HU NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LTD.

Effective date: 20121012

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TA01 Transfer of patent application right

Effective date of registration: 20121012

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

Applicant after: Science Research Institute of Hunan Electric Power Co., Ltd.

Applicant after: Hunan Xiangdian Electric Power Text & Research Co., Ltd.

Applicant after: State Grid Corporation of China

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

Applicant before: Science Research Institute of Hunan Electric Power Co., Ltd.

Applicant before: Hunan Xiangdian Electric Power Text & Research Co., Ltd.

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120919