WO2012173517A1 - Procédé de dégivrage sur les câbles des lignes électriques aériennes triphasées - Google Patents

Procédé de dégivrage sur les câbles des lignes électriques aériennes triphasées Download PDF

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Publication number
WO2012173517A1
WO2012173517A1 PCT/RU2012/000358 RU2012000358W WO2012173517A1 WO 2012173517 A1 WO2012173517 A1 WO 2012173517A1 RU 2012000358 W RU2012000358 W RU 2012000358W WO 2012173517 A1 WO2012173517 A1 WO 2012173517A1
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WO
WIPO (PCT)
Prior art keywords
phase
melting
time
wires
ice
Prior art date
Application number
PCT/RU2012/000358
Other languages
English (en)
Russian (ru)
Inventor
Роман Николаевич БЕРДНИКОВ
Юрий Александрович ГОРЮШИН
Юрий Александрович ДЕМЕНТЬЕВ
Александр Сергеевич ЗАСЫПКИН
Иван Иванович ЛЕВЧЕНКО
Евгений Иванович САЦУК
Сергей Сергеевич ШОВКОПЛЯС
Original Assignee
Открытое Акционерное Общество "Федеральная Сетевая Компания Единой Энергетической Системы" (Оао "Фск Еэс")
Общество С Ограниченной Ответственностью "Тмк-Центр" (Ооо "Тмк-Центр")
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 Открытое Акционерное Общество "Федеральная Сетевая Компания Единой Энергетической Системы" (Оао "Фск Еэс"), Общество С Ограниченной Ответственностью "Тмк-Центр" (Ооо "Тмк-Центр") filed Critical Открытое Акционерное Общество "Федеральная Сетевая Компания Единой Энергетической Системы" (Оао "Фск Еэс")
Publication of WO2012173517A1 publication Critical patent/WO2012173517A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/16—Devices for removing snow or ice from lines or cables

Definitions

  • the invention relates to the electric power industry, in particular, to ice melting on three-phase overhead power transmission lines (VL).
  • VL overhead power transmission lines
  • a direct (rectified) current is used, which is generated using rectifier units based on AC to DC converters.
  • Rectifier installations are located in areas with a standard ice wall thickness of 20 mm or more at substations that are connected by overhead lines of different voltage classes, usually 220-500 kV, of different lengths, with different cross-sections of wires and the number of wires in phase. Ice can be melted under different weather conditions - air temperature and wind speed. These differences make it necessary to conduct ice melting with adjustable wire heating capacities, including unequal in the phase wires of one overhead power transmission line, since, as a rule, ice deposits on the leeward and leeward phases of overhead lines are different.
  • the prototype method of melting with direct current of the rectifier installation with connecting the OHL phase wires according to the “phase-two phases” scheme, in which the current is alternately passed through the main phase wire and the wires of two other phases connected in parallel, and completing the melting ice in the next main phase is connected as the main another phase.
  • a melting sequence is used, in particular, in the method [RU 2309522 from 06.24.2006].
  • ice melting on a three-phase line is performed for three time intervals, and in the second and third intervals, the melting current passes through the wires of those phases at which the ice is already melted in the first and second time intervals, respectively.
  • the heating energy is used inefficiently, since the phase-free wires of ice are uselessly heated, and accordingly the total (total) melting time increases, during which the overhead line remains out of operation.
  • the technical result of the invention is the reduction of energy consumption and the reduction of the melting time on the three phases of overhead lines without the use of complex converting equipment for smelting ice.
  • the subject of the invention is a method of melting ice on the wires of a three-phase overhead line, which consists in the fact that alternately during consecutive time intervals not exceeding 20% of the expected total melting time, direct current is passed through the wire of the main phase of the overhead line and two wires of the other phases connected in parallel, while each phase of the overhead line is cyclically used as the main phase and the heating power of its wire is controlled by changing the ratio the duration of the time interval in which this phase is used as the main, to the total duration of the cycle.
  • the development of the invention provides for the separation of consecutive time intervals without current pauses.
  • Figure 1 shows a bipolar controlled thyristor rectifier, consisting of a three-phase cathode group 1 and a three-phase anode group 2, a bridge switching device with four thyristor arms - 3,4,5,6, three phases 7,8,9 VL, on the wires of which carry out melting ice; fusion control unit 10, rectifier power supply 1 1 by three-phase alternating voltage.
  • the method is as follows.
  • phase wires are short-circuited.
  • thyristors of groups 1, 2 and arms 3 and 4 of the thyristor switching device are turned on with a control angle close to zero.
  • the thyristors of groups 1, 2 and arms 3 and 4 are turned off.
  • the thyristors of groups 1, 2 and arms 4 and 5 After a dead time pause ⁇ turn on with a control angle close to zero, the thyristors of groups 1, 2 and arms 4 and 5 ..
  • the process After the third time interval, through a currentless pause At, the process is cyclically repeated and continues until the ice is melted at all phases of the overhead line.
  • Commands for turning on and off the three-phase thyristor groups and the corresponding arms of the thyristor switching device are provided by the control unit 10.
  • the thyristor converter is powered by a three-phase alternating voltage by a power supply 1 1.
  • the ice melting time at each phase of the overhead line is determined by the square of the current value
  • the duration of the cycle in practice varies from several tens of seconds to several minutes.
  • k 3) k s are the unevenness coefficients of the currents in the phases of the overhead line, which are determined by the ratio of the ice wall thicknesses taking into account weather conditions - air temperature and wind speed and can be calculated using icing control data obtained, for example, using an automated system [Information system for icing control on overhead power lines / A.F. Dyakov, I.I. Levchenko, A.S. Zasypkin, etc. // Energetik.-2005, JVfel 1, p.20-25].
  • the melting current can be reduced to an acceptable value by increasing the duration of dead time pauses At (figure 2).
  • the reduction in energy consumption and the reduction of ice melting time in relation to the prototype is practically manifested in cases where the total cycle time T does not exceed 20% of the total expected (according to the icing control system) melting time, i.e. the expected ice melting time is divided into at least five cycles. Moreover, the duration of one cycle is usually 5-10 minutes.

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  • Control Of Electrical Variables (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

L'invention concerne la production d'énergie électrique et notamment le dégivrage sur des lignes électriques aériennes (LA) triphasées. Le résultat technique de l'invention est une baisse de consommation d'énergie électrique et la réduction de la durée de dégivrage sur trois phases de LA ne nécessitant pas le recours à un équipement de transformation complexe. On fait circuler de manière alternée, pendant des intervalles ne dépassant pas les 20 % de la durée attendue du dégivrage, on fait passer un courant continu via un câble (7) de la phase principale de la LA et deux câbles (8 et 9) des autres phases branchées en parallèle. En tant que phase principale on utilise de manière cyclique chaque phase de la LA et l'on régule la puissance de chauffe de son câble en modifiant le rapport entre la durée de l'intervalle pendant lequel cette phase est utilisée en tant que intervalle de durée principale et la durée globale du cycle. Les intervalles qui se succèdent sont divisés par des pauses sans circulation de courant.
PCT/RU2012/000358 2011-06-14 2012-05-05 Procédé de dégivrage sur les câbles des lignes électriques aériennes triphasées WO2012173517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2011123905/07A RU2465702C1 (ru) 2011-06-14 2011-06-14 Способ плавки гололеда на проводах трехфазной воздушной линии электропередачи
RU2011123905 2011-06-14

Publications (1)

Publication Number Publication Date
WO2012173517A1 true WO2012173517A1 (fr) 2012-12-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2012/000358 WO2012173517A1 (fr) 2011-06-14 2012-05-05 Procédé de dégivrage sur les câbles des lignes électriques aériennes triphasées

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Country Link
RU (1) RU2465702C1 (fr)
WO (1) WO2012173517A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106058775A (zh) * 2016-07-19 2016-10-26 卢敏 一种集约型直流融冰装置拓扑结构
CN109033689A (zh) * 2018-08-16 2018-12-18 四川大学 基于直流加热电源的自制热输电导线均匀功率设计方法
CN109638710A (zh) * 2018-12-10 2019-04-16 贵州电网有限责任公司 利用柔性多状态开关转移潮流实现配电网在线融冰方法
CN114839560A (zh) * 2022-04-19 2022-08-02 湖南防灾科技有限公司 大功率低谐波融冰整流器参量测量设备
CN115800169A (zh) * 2022-12-27 2023-03-14 西南交通大学 适用于接触网和承力索覆冰的非分相区分段可调直流融冰系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2546643C1 (ru) * 2013-12-30 2015-04-10 Открытое акционерное общество "Межрегиональная распределительная сетевая компания Северного Кавказа" Установка для плавки гололеда на воздушных линиях электропередачи
RU2580833C1 (ru) * 2014-12-19 2016-04-10 Общество с ограниченной ответственностью "ТИРА-ЭЛ" (ООО "ТИРА-ЭЛ") Устройство плавки гололеда на проводах и грозотросах вл

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745430A1 (fr) * 1996-02-27 1997-08-29 Const Electr Fels Procede de chauffage de portions de conducteurs d'alimentation et dispositif pour sa mise en oeuvre
RU2309522C1 (ru) * 2006-04-26 2007-10-27 Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") Способ включения двухмостового преобразователя, работающего в режиме плавки гололеда
RU2376692C1 (ru) * 2008-06-09 2009-12-20 Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") Комбинированная установка для плавки гололеда и компенсации реактивной мощности

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2235397C2 (ru) * 2002-04-11 2004-08-27 Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" Установка для плавки гололеда

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745430A1 (fr) * 1996-02-27 1997-08-29 Const Electr Fels Procede de chauffage de portions de conducteurs d'alimentation et dispositif pour sa mise en oeuvre
RU2309522C1 (ru) * 2006-04-26 2007-10-27 Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") Способ включения двухмостового преобразователя, работающего в режиме плавки гололеда
RU2376692C1 (ru) * 2008-06-09 2009-12-20 Открытое акционерное общество "Научно-исследовательский институт по передаче электроэнергии постоянным током высокого напряжения" (ОАО "НИИПТ") Комбинированная установка для плавки гололеда и компенсации реактивной мощности

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106058775A (zh) * 2016-07-19 2016-10-26 卢敏 一种集约型直流融冰装置拓扑结构
CN109033689A (zh) * 2018-08-16 2018-12-18 四川大学 基于直流加热电源的自制热输电导线均匀功率设计方法
CN109033689B (zh) * 2018-08-16 2022-09-13 四川大学 基于直流加热电源的自制热输电导线均匀功率设计方法
CN109638710A (zh) * 2018-12-10 2019-04-16 贵州电网有限责任公司 利用柔性多状态开关转移潮流实现配电网在线融冰方法
CN114839560A (zh) * 2022-04-19 2022-08-02 湖南防灾科技有限公司 大功率低谐波融冰整流器参量测量设备
CN115800169A (zh) * 2022-12-27 2023-03-14 西南交通大学 适用于接触网和承力索覆冰的非分相区分段可调直流融冰系统
CN115800169B (zh) * 2022-12-27 2023-06-09 西南交通大学 适用于接触网和承力索覆冰的非分相区分段可调直流融冰系统

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