阅读说明：本技术 一种局部放电定位系统及方法 (A kind of shelf depreciation positioning system and method ) 是由 彭兆裕 王韧 岳丹 程志万 龚泽威一 颜冰 马御棠 何顺 李佑明 于 2019-10-14 设计创作，主要内容包括：本申请公开了一种局部放电定位系统及方法,包括置于GIS设备内部的球形荧光光纤传感器阵列和置于GIS设备外部、与供电装置连接、并依次连接的光电转换装置、数据采集装置、数据发射装置,数据发射装置与数据处理器连接；光电转换装置为基于PMT的光电转换装置；球形荧光光纤传感器阵列包括四个球形荧光光纤传感器,四个球形荧光光纤传感器分别通过光纤并联连接,球形荧光光纤传感器包括1个光锥和34根荧光光纤,34根荧光光纤均匀固定于光锥的外表面。球形荧光光纤传感器阵列和光电转换装置,荧光光纤对光信号的响应只与其到放电源的距离有关,消除了传感器与放电源相对角度对其响应的影响,提高定位准确性。(This application discloses a kind of shelf depreciation positioning system and methods, including the spherical fluorescent optical fiber sensor array being placed in inside GIS device and it is placed in outside GIS device, is connect with power supply unit and sequentially connected photoelectric conversion device, data acquisition device, data sending apparatus, data sending apparatus are connect with data processor；Photoelectric conversion device is the photoelectric conversion device based on PMT；Spherical fluorescent optical fiber sensor array includes four spherical fluorescent optical fiber sensors, four spherical fluorescent optical fiber sensors are connected in parallel by optical fiber respectively, spherical fluorescent optical fiber sensor includes that 1 light cone and 34 fluorescence optical fibers, 34 fluorescence optical fibers are uniformly fixed on the outer surface of light cone.Spherical fluorescent optical fiber sensor array and photoelectric conversion device, fluorescence optical fiber only arrive the distance dependent of discharge source to the response of optical signal with it, eliminate the influence that sensor and discharge source relative angle response to which, improve positioning accuracy.)

1. a kind of shelf depreciation positioning system, which is characterized in that including the spherical fluorescent optical fiber sensor being placed in inside GIS device Array (1) and the photoelectric conversion device (2) being placed in outside GIS device, data sending apparatus (4), supply data acquisition device (3) Electric installation (5), data processor (6), in which:

The spherical shape fluorescent optical fiber sensor array (1), the photoelectric conversion device (2), the data acquisition device (3), institute It states data sending apparatus (4) to be sequentially connected electrically, the data sending apparatus (4) and the data processor (6) communicate to connect, institute State photoelectric conversion device (2), the data acquisition device (3) and the data sending apparatus (4) respectively with the power supply unit (5) it is electrically connected；

The photoelectric conversion device (2) is the photoelectric conversion device based on PMT；

The spherical shape fluorescent optical fiber sensor array (1) includes four spherical fluorescent optical fiber sensors (11), four spherical shapes Fluorescent optical fiber sensor (11) is connected in parallel by optical fiber respectively, and the spherical shape fluorescent optical fiber sensor (11) includes 1 light cone (111) and 34 fluorescence optical fibers (112), 34 fluorescence optical fibers (112) are uniformly fixed on the appearance of the light cone (111) Face.

2. shelf depreciation positioning system according to claim 1, which is characterized in that four spherical fluorescence optical fiber sensings Device (11) cannot constitute straight line.

3. shelf depreciation positioning system according to claim 1, which is characterized in that the data sending apparatus (4) is number According to WIFI emitter.

4. shelf depreciation positioning system according to claim 1, which is characterized in that the data processor (6) includes meter Module is calculated, the computing module is using optical alignment algorithm to electric discharge point location.

5. a kind of partial discharge positioning method, which is characterized in that fixed applied to the shelf depreciation any in claim 1-4 Position system, which comprises

Spherical fluorescence optical fiber sensor array obtains the optical signal of discharge source release；

Optical signal is converted to electric signal by photoelectric conversion device；

Data acquisition device acquires electric signal, and electric signal progress analog-to-digital conversion is obtained digital quantity；

Digital quantity is sent to data processor by data sending apparatus；

The position of discharge source is calculated using location algorithm for data processor.

6. partial discharge positioning method according to claim 5, which is characterized in that data processor utilizes location algorithm meter Calculation obtains the position of discharge source, comprising:

The position of discharge source is calculated by formula (1)；

Wherein, (x₁,y₁,z₁),(x₂,y₂,z₂) and (x₃,y₃,z₃) it is respectively that the spaces of four spherical fluorescent optical fiber sensors is sat Mark；(x₀,y₀,z₀) be discharge source space coordinate；I₁、I₂And I₃The response of respectively four spherical fluorescent optical fiber sensors is strong Degree.

Technical field

This application involves switched power equipment state diagnostic field more particularly to a kind of shelf depreciation positioning system and sides Method.

Background technique

Gas-insulated switchgear (GIS device) insulating inner inevitably has the defect (gas in such as solid insulation Gap, the bubble in fluid insulation), in equipment running process under the action of power-frequency voltage, the voltage of fault location exceeds fault location Dielectric strength puncture, it is this fault location formed fine discharge be referred to as shelf depreciation.It is played a game using location technology Portion electric discharge generate signal correlation information positioning substation inside shelf depreciation accurate location, can not only save because it is long when Between interruption maintenance bring economic loss, can also to avoid because find discharge source and dismantle installation discharge off GIS device and make At new insulation defect introducing.

Current GIS equipment partial discharge localization method using it is more be the partial discharge positioning method based on hyperfrequency. Shelf depreciation point method based on hyperfrequency is based on time difference positioning method, and detailed process is as follows: GIS device is equivalent to two Tie up coaxial equipment, then when fault point is broken down, fault point electric discharge becomes discharge source, be distributed in the sensor of other two o'clock with The distance of discharge source is different, and there are the time differences for the signal that sensor receives.In conjunction with the distance between two sensors and signal Spread speed, calculate discharge source to the distance of sensor, and then obtain the position of discharge source.

But since under actual condition, electromagnetic interference is serious between GIS device, ultrasonic signal is decayed the disadvantages of very fast, so that For the positioning accuracy of shelf depreciation point method based on hyperfrequency there are error, i.e. positioning accuracy is low.Therefore, it is proposed to a kind of Shelf depreciation positioning system and method.

Summary of the invention

This application provides a kind of shelf depreciation positioning system and methods, to solve the shelf depreciation point based on hyperfrequency The low technical problem of the positioning accuracy in orientation.

In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical scheme:

A kind of shelf depreciation positioning system including the spherical fluorescent optical fiber sensor array being placed in inside GIS device and is set Photoelectric conversion device, data acquisition device, data sending apparatus, power supply unit, data processor outside GIS device, In: spherical fluorescent optical fiber sensor array, photoelectric conversion device, data acquisition device, data sending apparatus are sequentially connected electrically, number Communicated to connect according to emitter and data processor, photoelectric conversion device, data acquisition device and data sending apparatus respectively with Power supply unit electrical connection；Photoelectric conversion device is the photoelectric conversion device based on PMT；Spherical fluorescent optical fiber sensor array includes Four spherical fluorescent optical fiber sensors, four spherical fluorescent optical fiber sensors are connected in parallel by optical fiber respectively, spherical glimmering Light fibre optical sensor includes that 1 light cone and 34 fluorescence optical fibers, 34 fluorescence optical fibers are uniformly fixed on the outer surface of light cone.

Optionally, four spherical fluorescent optical fiber sensors cannot constitute straight line.

Optionally, data sending apparatus is data WIFI emitter.

Optionally, data processor includes computing module, and computing module is using optical alignment algorithm to electric discharge point location.

A kind of partial discharge positioning method, method include: the light that spherical fluorescence optical fiber sensor array obtains discharge source release Signal；Optical signal is converted to electric signal by photoelectric conversion device；Data acquisition device acquires electric signal, and electric signal is carried out Analog-to-digital conversion obtains digital quantity；Digital quantity is sent to data processor by data sending apparatus；Data processor is calculated using positioning The position of discharge source is calculated in method.

Optionally, the position of discharge source is calculated using location algorithm for data processor, comprising:

The position of discharge source is calculated by formula (1)；

Wherein, (x₁,y₁,z₁),(x₂,y₂,z₂) and (x₃,y₃,z₃) be respectively four spherical fluorescent optical fiber sensors space Coordinate；(x₀,y₀,z₀) be discharge source space coordinate；I₁、I₂And I₃The response of respectively four spherical fluorescent optical fiber sensors is strong Degree.

The utility model has the advantages that this application provides a kind of shelf depreciation positioning system, it is spherical glimmering inside GIS device including being placed in Light fibre optic sensor arra and the photoelectric conversion device being placed in outside GIS device, data acquisition device, data sending apparatus, confession Electric installation, data processor.Connection relationship between each component is as follows: spherical fluorescent optical fiber sensor array, photoelectric conversion dress It sets, data acquisition device, data sending apparatus are sequentially connected electrically, data sending apparatus and data processor communication connection, photoelectricity Conversion equipment, data acquisition device and data sending apparatus are electrically connected with power supply unit respectively.In use process, spherical fluorescence light Fiber sensor array obtains the optical signal inside GIS device, and is transferred to photoelectric conversion device by fluorescence optical fiber.Photoelectric conversion Device converts optical signals to electric signal.Data acquisition device acquires electric signal, and electric signal progress analog-to-digital conversion is counted Word amount.Digital quantity is sent to data processor by data sending apparatus.Electric discharge is calculated using location algorithm in data processor The specific location in source.In order to facilitate the specific location for obtaining discharge source, photoelectric conversion device is the photoelectric conversion dress based on PMT It sets, spherical fluorescent optical fiber sensor array includes four spherical fluorescent optical fiber sensors, four spherical fluorescent optical fiber sensors point It is not connected in parallel by optical fiber, spherical fluorescent optical fiber sensor includes 1 light cone and 34 fluorescence optical fibers, and 34 fluorescence optical fibers are equal The even outer surface for being fixed on light cone.In use process, 34 fluorescence optical fibers obtain the optical signal of discharge source respectively, and fluorescence optical fiber is logical Light-cone QCD sum rules are crossed in the photoelectric conversion device based on PMT, the photoelectric conversion device based on PMT converts optical signals to electric signal. In the application, spherical fluorescent optical fiber sensor array and the photoelectric conversion device based on PMT, response of the fluorescence optical fiber to optical signal The distance dependent that discharge source is only arrived with it eliminates the shadow that spherical fluorescent optical fiber sensor and discharge source relative angle response to which It rings, improves positioning accuracy.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor, It is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram for shelf depreciation positioning system that application provides；

Fig. 2 is the structural schematic diagram for the spherical fluorescent optical fiber sensor that application provides；

Specific embodiment

Fig. 1 is a kind of structural schematic diagram of shelf depreciation positioning system provided by the present application；Fig. 2 is provided by the present application The structural schematic diagram of spherical fluorescent optical fiber sensor, referring to Fig. 1 and Fig. 2, it is known that, this application provides a kind of positioning of shelf depreciation System, including spherical photoelectric conversion fluorescent optical fiber sensor array 1 and be placed in outside GIS device being placed in inside GIS device Device 2, data acquisition device 3, data sending apparatus 4, power supply unit 5, data processor 6.Connection relationship between each component As follows: spherical fluorescent optical fiber sensor array 1, photoelectric conversion device 2, data acquisition device 3, data sending apparatus 4 are successively electric Connection, data sending apparatus 4 and data processor 6 communicate to connect, photoelectric conversion device 2, data acquisition device 3 and data transmitting Device 4 is electrically connected with power supply unit 5 respectively.In use process, spherical fluorescent optical fiber sensor array 1 is obtained inside GIS device Optical signal, and photoelectric conversion device is transferred to by fluorescence optical fiber 112.Photoelectric conversion device 2 converts optical signals to telecommunications Number.Data acquisition device 3 acquires electric signal, and electric signal progress analog-to-digital conversion is obtained digital quantity.Data sending apparatus 4 will count Word amount is sent to data processor 6.The specific location of discharge source is calculated using location algorithm for data processor 6.For side Just the specific location of discharge source is obtained, photoelectric conversion device 2 is the photoelectric conversion device based on PMT, spherical fluorescence optical fiber sensing Device array 1 includes four spherical fluorescent optical fiber sensors 11, and four spherical fluorescent optical fiber sensors 11 pass through optical fiber parallel connection respectively Connection, spherical fluorescent optical fiber sensor 11 include that 1 light cone 111 and 34 piece fluorescence optical fiber, 112,34 fluorescence optical fibers 112 are uniform It is fixed on the outer surface of light cone 111.In use process, 34 fluorescence optical fibers 112 obtain the optical signal of discharge source, fluorescence light respectively Fibre 112 is coupled in the photoelectric conversion device based on PMT by light cone 111, and the photoelectric conversion device based on PMT converts optical signal For electric signal.In the application, spherical fluorescent optical fiber sensor array 1 and the photoelectric conversion device based on PMT, fluorescence optical fiber 112 The distance dependent for only arriving discharge source with it to the response of optical signal, it is opposite with discharge source to eliminate spherical fluorescent optical fiber sensor 11 The influence that angle responses to which, improves positioning accuracy.

In order to more accurately obtain the position of discharge source, in the present embodiment, four spherical fluorescent optical fiber sensors 11 cannot Constitute straight line.Four spherical fluorescent optical fiber sensors 11 not point-blank, can the multi-faceted three-dimensional for obtaining discharge source Coordinate provides full information to calculate discharge source three-dimensional coordinate.

In order to reduce cable connection, in the present embodiment, data sending apparatus 4 is data WIFI emitter.Data WIFI Emitter is sent to data processor 6 by the digital quantity that data acquisition device 3 is acquired and converted by WIFI wireless module.

In order to facilitate being uniformly processed for data, in the present embodiment, data processor 6 includes computing module, computing module benefit With optics location algorithm to electric discharge point location.In use process, the computing module of data processor 6 utilizes optical alignment algorithm, Discharge source can be accurately positioned.Unified back-end data processor, which is conducive to save, to be calculated cost and reduces GIS device The complexity of periphery corollary equipment.

The application additionally provides a kind of partial discharge positioning method other than providing a kind of shelf depreciation positioning system, Method includes:

S01: spherical fluorescence optical fiber sensor array obtains the optical signal of discharge source release.

S02: optical signal is converted to electric signal by photoelectric conversion device.

34 optical fiber of spherical fluorescence optical fiber sensing obtain the optical signal of discharge source, the light cone coupling of spherical fluorescence optical fiber sensing It closes on the photoelectric conversion device based on PMT, photoelectric conversion device converts optical signals to electric signal.Wherein, the photoelectric transfer of PMT The bias of sensor arrangement is set as -500V.

S03: data acquisition device acquires electric signal, and electric signal progress analog-to-digital conversion is obtained digital quantity.

S04: digital quantity is sent to data processor by data sending apparatus.

The tranmitting frequency 2.4GHz of data sending apparatus setting.In use process, more data sending apparatus can be simultaneously Data communication is carried out to data processor.

S05: the position of discharge source is calculated using location algorithm for data processor.

Data processor is provided with the discharge signal of given threshold.It puts a blood signal when data processor is collected and is more than The position of discharge source is accurately positioned in the discharge signal of given threshold, the automatic optical alignment algorithm that starts.

The position of discharge source is calculated by formula (1)；

Wherein, (x₁,y₁,z₁),(x₂,y₂,z₂) and (x₃,y₃,z₃) be respectively four spherical fluorescent optical fiber sensors space Coordinate；(x₀,y₀,z₀) be discharge source space coordinate；I₁、I₂And I₃The response of respectively four spherical fluorescent optical fiber sensors is strong Degree.

The application can pass through light intensity ratio and carry out discharge source positioning by ignoring the influence of the intensity of light source.

Those skilled in the art will readily occur to other realities of the application after considering the application of specification and practice here Apply scheme.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or suitable The variation of answering property follows the general principle of the application and including the unpractical common knowledge in the art of the application or used Use technological means.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following right It is required that pointing out.

It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.