RU2008150234A - METHOD FOR DETERMINING PLACES OF DAMAGE TO ELECTRIC TRANSMISSION AND COMMUNICATION LINES AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR DETERMINING PLACES OF DAMAGE TO ELECTRIC TRANSMISSION AND COMMUNICATION LINES AND DEVICE FOR ITS IMPLEMENTATION Download PDFInfo
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- RU2008150234A RU2008150234A RU2008150234/28A RU2008150234A RU2008150234A RU 2008150234 A RU2008150234 A RU 2008150234A RU 2008150234/28 A RU2008150234/28 A RU 2008150234/28A RU 2008150234 A RU2008150234 A RU 2008150234A RU 2008150234 A RU2008150234 A RU 2008150234A
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- damage
- output
- input
- line
- frequency
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Locating Faults (AREA)
Abstract
1. Способ определения места повреждения линий электропередачи и связи, в котором в линию посылают импульсы напряжения с их последующей времячастотной модуляцией, принимают отраженные импульсы с их последующей демодуляцией, фильтрацией и спектральным анализом, при обнаружении повреждения линии рассчитывают расстояние до места повреждения, отличающийся тем, что фиксируют массив демодулированных отраженных сигналов, полученных с неповрежденной линии в виде электронного образа линии, который подвергают спектральному анализу, записывают массив реперных точек соответствия расстояния до естественной неоднородности с ее частотой, отраженные демодулированные сигналы сравнивают с электронным образом линии, вывод о повреждении линии делают при наличии разностных сигналов, а расстояние до места повреждения рассчитывают по следующей зависимости ! , ! где FX - частота, соответствующая координате повреждения, определяемая по максимальному значению амплитудно-частотного спектра автокорреляционной функции разностного сигнала, ! Fn, Fn-1 - частоты в Гц реперных точек, ближайшие к FX, ! Ln, Ln-1 - расстояние до реперных точек в метрах, ! - коэффициент, учитывающий изменение фазовой скорости при изменении начальных условий от момента записи реперных точек до момента возникновения повреждения, ! - частота в Гц, полученная при анализе спектра автокорреляционной функции электронного образа линии на момент возникновения повреждения. ! 2. Устройство для определения места повреждения линий электропередачи и связи, содержащее генератор зондирующих импульсов, вычислительный блок, первый выход которого соединен со входом генер� 1. A method for determining the location of damage to power transmission and communication lines, in which voltage pulses are sent to the line with their subsequent time-frequency modulation, reflected pulses are received with their subsequent demodulation, filtering and spectral analysis, when a line damage is detected, the distance to the location of the damage is calculated, which is characterized by that the array of demodulated reflected signals obtained from the intact line is recorded in the form of an electronic image of the line, which is subjected to spectral analysis, an array of reference points of correspondence between the distance to the natural inhomogeneity with its frequency is recorded, the reflected demodulated signals are compared with the electronic image of the line, the conclusion about line damage is made when the presence of differential signals, and the distance to the place of damage is calculated according to the following relationship! ,! where FX is the frequency corresponding to the damage coordinate, determined from the maximum value of the amplitude-frequency spectrum of the autocorrelation function of the difference signal,! Fn, Fn-1 - frequencies in Hz of fiducials closest to FX,! Ln, Ln-1 - distance to reference points in meters,! - coefficient taking into account the change in the phase velocity when the initial conditions change from the moment of recording the reference points to the moment of damage,! is the frequency in Hz obtained by analyzing the spectrum of the autocorrelation function of the electronic image of the line at the time of damage. ! 2. A device for determining the location of damage to power transmission and communication lines, containing a probe pulse generator, a computing unit, the first output of which is connected to the generator input.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2008150234/28A RU2400765C2 (en) | 2008-12-18 | 2008-12-18 | Method of determining point of fault in power transmission or communication line and device for realising said method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2008150234/28A RU2400765C2 (en) | 2008-12-18 | 2008-12-18 | Method of determining point of fault in power transmission or communication line and device for realising said method |
Publications (2)
Publication Number | Publication Date |
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RU2008150234A true RU2008150234A (en) | 2010-06-27 |
RU2400765C2 RU2400765C2 (en) | 2010-09-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2008150234/28A RU2400765C2 (en) | 2008-12-18 | 2008-12-18 | Method of determining point of fault in power transmission or communication line and device for realising said method |
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RU (1) | RU2400765C2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2474831C1 (en) * | 2011-10-07 | 2013-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет" (СГТУ) | Method to detect area of power transmission and communication lines damage and device for its realisation |
RU2559308C2 (en) * | 2013-12-11 | 2015-08-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Казанский национальный исследовательский технический университет им. А.Н. Туполева-КАИ (КНИТУ-КАИ) | Method for determining damaged point of power transmission and communication lines |
RU2654378C1 (en) * | 2017-05-24 | 2018-05-17 | Публичное акционерное общество энергетики и электрификации Кубани | Method of determining point of damage on electric power lines with large amount of discontinuity |
RU2654377C1 (en) * | 2017-05-24 | 2018-05-17 | Публичное акционерное общество энергетики и электрификации Кубани | Method for determining of damaged point of power transmission lines |
RU2685048C1 (en) * | 2018-07-25 | 2019-04-16 | Публичное акционерное общество энергетики и электрификации Кубани | Method of determining places of inhomogeneities and damage of power transmission lines |
RU190017U1 (en) * | 2019-02-13 | 2019-06-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный энергетический университет" | Test bench for testing the location complex |
RU2713741C9 (en) * | 2019-05-16 | 2020-03-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный энергетический университет" | Method for determining the position of reflected pulse |
RU2720818C1 (en) * | 2019-10-01 | 2020-05-13 | Общество с ограниченной ответственностью "Научно-производственное предприятие "АРТС" (ООО "НПП "АРТС") | Device for fault location of power transmission lines and communication lines |
RU2739229C1 (en) * | 2020-03-20 | 2020-12-22 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Method of controlling nodes docking in radio engineering systems |
RU2771083C1 (en) * | 2021-07-12 | 2022-04-26 | Общество С Ограниченной Ответственностью "Уральский Центр Диагностики Оборудования" | Method for monitoring the condition of insulators in hard-to-reach sections of a power line and a system for its implementation |
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2008
- 2008-12-18 RU RU2008150234/28A patent/RU2400765C2/en not_active IP Right Cessation
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Publication number | Publication date |
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RU2400765C2 (en) | 2010-09-27 |
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Effective date: 20131219 |