CN204290489U - A kind of distribution transformer running status sensory perceptual system - Google Patents

A kind of distribution transformer running status sensory perceptual system Download PDF

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Publication number
CN204290489U
CN204290489U CN201420728657.5U CN201420728657U CN204290489U CN 204290489 U CN204290489 U CN 204290489U CN 201420728657 U CN201420728657 U CN 201420728657U CN 204290489 U CN204290489 U CN 204290489U
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distribution transformer
running status
transformer running
surveillance center
submodule
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黄晟
杨堂华
黄星
左云杰
张冠一
刘珊
杨忠才
李鸣
陈飞
邱革非
叶波
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Kunming University of Science and Technology
Puer Supply Power Bureau of Yunnan Power Grid Co Ltd
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Kunming University of Science and Technology
Puer Supply Power Bureau of Yunnan Power Grid Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

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Abstract

A kind of distribution transformer running status sensory perceptual system, Industrial Ethernet is adopted to connect each network node, network node comprises many cover distribution transformer running status perception unit and a Surveillance center in guarded region, Industrial Ethernet adopts hub-and-spoke configuration, node centered by Surveillance center, distribution transformer running status perception unit is branch node and separate, and Surveillance center's node and each distribution transformer running status perception unit branch node carry out point-to-point communication.The utility model can monitor multiple bulk state parameter and the load condition parameter of distribution transformer simultaneously, solve conventional electrical distribution transformer monitoring device monitoring parameter single, be difficult to the problem of comprehensive descision distribution transformer running status, and the utility model also has fault pre-alarming ability and fault automatically to excise ability.

Description

A kind of distribution transformer running status sensory perceptual system
Technical field
The utility model relates to a kind of distribution transformer running status sensory perceptual system.
Background technology
Electric energy, as most important secondary energy sources, is the emphasis investment orientation of China at energy field, and China has dropped into ample resources to support technical development and the infrastructure construction of power industry in recent years.Mains network is just day by day perfect as the emphasis of China's power construction all the time, relevant to send out, defeated, power transformation technology reaches its maturity, and hardware device is more and more reliable and more stable and configure rationally more scientific.Along with the rise of intelligent grid and the proposition of distribution automation concept, existing increasing power science researcher and builder turn one's attention to this unheeded link traditionally of power distribution network, build, run, safeguard novel information, important step that automation, intelligentized power distribution network will be development intelligent grid.Distribution transformer is the power equipment directly to low voltage terminal customer power supply in power distribution network, ensures that distribution transformer safe and stable operation will improve Reliability of Power Supplying Net Work and power supply quality greatly.Due to distribution transformer distribution widely, enormous amount, and property ownership is various, brings very large difficulty to administering and maintaining of distribution transformer.
The mainly periodic preventative that administers and maintains of current distribution transformer is tested and maintenance, and this mode tool bears the character of much blindness with mandatory.For periodic inspection, according to " power transformer maintenance directive/guide " relevant regulations, just must overhaul when operation reaches the stipulated time, not only increase frequency of power cut, interruption duration, the cost of overhaul, excessive maintenance may cause device damage on the contrary, reduce the overall useful life of distribution transformer, wastes manpower and materials; Also only have to the stipulated time simultaneously and just overhaul, early warning cannot be made to potential faults.Therefore under the background of development intelligent power distribution net, the management of conventional electrical distribution transformer and maintenance mode can not meet demand for development, proposed to carry out Real-Time Monitoring to the running status of distribution transformer by " distribution repair based on condition of component " this concept, accomplish " maintenance on demand, give warning in advance, the fast place of fault ", so distribution transformer running status sensory perceptual system is suggested for realizing above target.
Distribution transformer running status sensory perceptual system can be monitored distribution transformer running status, the content of monitoring comprises humidity, oil level and oil temperature, hot(test)-spot temperature, noise and vibration, the gas of generation and air pressure, three-phase current, three-phase voltage, three-phase load, power factor, short circuit current, quantity of state to the relevant distribution transformer operation such as earth-current, thunder-strike current, solve conventional electrical distribution transformer monitoring device monitoring parameter single, the problem of distribution transformer running status can not be reflected comprehensively.New distribution running state of transformer sensory perceptual system can not only carry out all kinds of fault pre-alarming by analyzing above-mentioned running state data, provide fault level to fault to report to the police, also there is the ability that certain fault is disposed, use Industrial Ethernet to be coupled together by the distribution transformer running status sensory perceptual system in a region simultaneously, be extended to network monitoring system, by the running state information System of distribution transformers all in guarded region to Surveillance center, real time implementation global monitoring can be accomplished, effectively administer and maintain according to state, greatly improve distribution transformer management maintenance level.
Utility model content
The utility model object is to provide a kind of distribution transformer running status sensory perceptual system, for distribution transformer running status in perception certain area, administering and maintaining to provide and provide powerful support for for distribution transformer, the distribution transformer departing from normal operating condition is given warning in advance, provide corresponding failure grade according to different departure degrees to report to the police, current power distribution watch-dog monitoring parameter is single, operation is closed to make up, do not support the defect that mutual communication is coordinated.
The utility model content is as follows:
The utility model devises a kind of distribution transformer running status sensory perceptual system, its structure is as follows: adopt Industrial Ethernet to connect each network node, network node comprises many cover distribution transformer running status perception unit and a Surveillance center, Industrial Ethernet adopts hub-and-spoke configuration, node centered by Surveillance center, often overlap distribution transformer running status perception unit and be a branch node and separate, Surveillance center's node and each distribution transformer running status perception unit branch node carry out point-to-point communication, and n is distribution transformer number in guarded region.
The utility model often overlaps distribution transformer running status perception unit and comprises controller, running status sensing module and actuating mechanism 3 part.Controller is connected with actuating mechanism with running status sensing module respectively by MPI bus; Running status sensing module comprises humidity/gas componant and gathers submodule, oil temperature oil level indicator quantum module, Hot spots detection submodule, vibration perception submodule, electric parameters collection submodule, partial discharge perception submodule, over the ground galvanometer quantum module totally 7 submodules, for gathering the running state data of distribution transformer; Controller accepts Surveillance center's instruction, completes and gathers running status sensing module data and upload the task such as Surveillance center, control action mechanism; Actuating mechanism is for excising fault distribution transformer and overload load.
The nucleus equipment of the utility model Surveillance center is industrial computer IPC, as the host computer of distribution transformer running status sensory perceptual system, for computational analysis from the data of running status sensing module, in real time display distribution transformer running state information, assign instruction to running status perception unit middle controller.
In the utility model the utility model, the controller of distribution transformer running status perception unit is programmable logic controller (PLC) PLC, and model is S7-300 (CPU314C--2DP).
In the utility model distribution transformer running status perception unit running status sensing module in humidity/gas componant gather submodule and adopt HS1101LF capacitor type humidity sensor and nickel doped carbon nanometer pipe gas sensor MWNTs, oil temperature oil level indicator quantum module adopts FST3124DS type distributed fiber grating temperature sensor and YZF2-250M-TH type oil level indicator, Hot spots detection submodule adopts OS136-1-MV-F type infrared temperature sensor, vibration perception submodule adopts BZ1185 type piezoelectric acceleration sensor, electric parameters gathers submodule and adopts Current Transmit, voltage transformer pt, model is respectively 35KV grade: LZZB7-35L and JDZ (F) W-35, 10KV grade: LZJC-10 and JDZ2-6 10, partial discharge perception submodule adopts type UHF sensor, galvanometer quantum module uses DT-9929/9939 Novel series pro digital universal instrument over the ground.
In the utility model, the actuating mechanism of distribution transformer running status perception unit is DS3106 distribution transforming automatic switching device.
In the utility model, Surveillance center's host computer is industrial computer IPC, and model is 1200N.
The progress control method of distribution transformer running status sensory perceptual system is:
S1: instruction is assigned to distribution transformer running status perception unit by Surveillance center, after the controller in running status perception unit accepts instruction, in controlling run state aware module, each submodule gathers distribution transformer running state data;
S2: the distribution transformer running state data that each submodule gathers by controller uploads to Surveillance center by Industrial Ethernet, the data of running status sensing module collection are carried out operational analysis by the host computer of Surveillance center, in real time the corresponding distribution transformer running state information of display;
S3: the real-time distribution transformer running state information obtained is saved in local hard drive and compares with predetermined normal level by host computer, judge whether distribution transformer running status departs from normal value and depart from the degree of normal value, if distribution transformer running status departs from normal value, carry out classification according to presetting decision content to the degree departing from normal value, host computer takes the measure of corresponding pre-set level to dispose accordingly.The degree departing from normal value according to distribution transformer running status can be divided into and slightly departing from and substantial deviation 2 ranks corresponding minor failures and catastrophe failure 2 running statuses respectively.Slightly depart from if occur, host computer sends minor failure and reports to the police, monitor staff is reminded to note running status change and the security of operation of corresponding distribution transformer, and adjust in case progression of failure to distribution transformer running status, if distribution transformer running status worsens further, substantial deviation is transferred to from slightly departing from, host computer sends catastrophe failure and reports to the police and excised by fault distribution transformer by assigning the indirect control action mechanism of instruction to the controller in running status perception unit, expands further with fail-safe; If distribution transformer running status remains in range of normal value, host computer sends without instruction, and distribution transformer running status sensory perceptual system is in monitoring state;
S4: Surveillance center obtains the correlation result of Distribution Network Load Data according to the parameter value of distribution transformer running state information, automatically assign instruction when according to preset value, host computer judges that serious overload occurs in distribution and indirectly control actuating mechanism cut-out load in perception unit, Surveillance center administrative staff also the monitoring program of manual operation host computer can control actuating mechanism in perception unit and artificially select to excise some load, to realize distribution transformer Load Regulation.
Advantage of the present utility model is:
(1) the utility model can monitor multiple bulk state parameter and the load condition parameter of distribution transformer simultaneously, solve conventional electrical distribution transformer monitoring device monitoring parameter single, be difficult to the problem of comprehensive descision distribution transformer running status, and the utility model also has fault pre-alarming ability and fault automatically to excise ability;
(2) the utility model adopts optical fiber industry Ethernet to realize networked control, and transmission rate is high, signal stabilization, anti-electromagnetic interference capability are strong;
(3) the utility model allows Surveillance center according to the real-time load condition of distribution, and automatic or manual regulates distribution transformer load;
(4) the utility model achieves the configurationization display of all distribution transformer running statuses in guarded region, and dynamic shows the running state information of each station power distribution transformer.
Accompanying drawing explanation
Fig. 1 is the utility model distribution transformer running status sensory perceptual system structural representation;
Fig. 2 is distribution transformer running status perception cellular construction schematic diagram in the utility model.
Embodiment
The utility model distribution transformer running status sensory perceptual system adopts hub-and-spoke configuration Industrial Ethernet as grid skeleton, each network node Fiber connection of Industrial Ethernet, as shown in Figure 1.1 is distribution transformer running status perception unit, it is a kind of network node in the utility model distribution transformer running status sensory perceptual system Industrial Ethernet, a set of distribution transformer running status perception unit is responsible for the running state information of collection one station power distribution transformer, and in guarded region, all n overlaps distribution transformer running status perception unit and is connected to Surveillance center as independently network node by Industrial Ethernet.2 is Surveillance center, receives the distribution transformer running state data that also computational analysis running status perception unit collects, assigns instruction to the controller in running status perception unit.The equipment such as 3 is Industrial Ethernet self-contained equipment, the Ethernet switch of mainly responsible exchanges data, transmission.
Distribution transformer running status perception unit comprises controller, running status sensing module, actuating mechanism 3 part, and controller is connected with actuating mechanism with sensing module respectively by MPI bus, as shown in Figure 2.A set of distribution transformer running status perception unit installed by one station power distribution transformer, controller accepts Surveillance center's instruction, complete and gather running status sensing module data and upload the task such as Surveillance center, control action mechanism, the utility model controller adopts Siemens S7-300 (CPU314C--2DP) type programmable logic controller (PLC) PLC.PLC is a kind of novel universal automatic control equipment being applicable to industrial environment that computer technology combines with automated control technology, logic control can not only be realized, also there is the functions such as data processing, communication, network connection, programming is simple, reliability is high, antijamming capability is strong, volume is little, easy to maintenance, be widely used in industrial control field, S7-300 (CPU314C--2DP) the type PLC that the utility model adopts, can access industrial Ethernet carry out communication with Surveillance center easily with Ethernet interface.
Running status sensing module is responsible for the running state data gathering distribution transformer, comprises humidity/gas componant and gathers submodule, oil temperature oil level indicator quantum module, Hot spots detection submodule, vibration perception submodule, electric parameters collection submodule, partial discharge perception submodule, over the ground galvanometer quantum module totally 7 submodules.The transducer that 7 submodules adopt or detection means digitlization as far as possible, can save A/D conversion equipment as much as possible, with predigested running state aware modular structure; Separate between each submodule, signal output part is connected to one by one the I/O interface of controller PLC, controller PLC gathers according to the output signal of instruction to sensing module of Surveillance center's host computer.Introduce each submodule in detail below:
Humidity/gas componant gathers submodule and adopts HS1101LF capacitor type humidity sensor to detect inside transformer humidity, top of oil-tank humidity sensor being arranged on distribution transformer gets final product measuring transformer interior humidity value, the transducer of this type under standard environment without the need to correcting, there is high reliability and long-time stability, be applicable to the condition of work under the various running status of distribution transformer; The detection of gas componant adopts nickel doped carbon nanometer pipe gas sensor MWNTs, and nickel doped carbon nanometer pipe has very high sensitivity and response speed to dissolve in transformer oil 6 kinds of common gas components.
Oil temperature oil level indicator quantum module adopts FST3124DS type distributed fiber grating temperature sensor measuring transformer oil temperature, and use 3 temperature transducers altogether, wherein 2 are arranged on circuit breaker secondary side (being embedded in), a top being arranged on transformer; Adopt oil level in YZF2-250M-TH type oil level indicator measuring transformer, this oil level counts the float-type oil-level meter that connecting rod swings up and down, with bolt, oil level indicator is fastened on mounting flange, mounting flange arranges two in transformer-cabinet, one of them is in high Oil Level, one is arranged on low oil level liquid level, has height warning remote transfer signal, can realize the telemonitoring of oil level.
Hot spots detection submodule adopts small low-cost non-contact infrared temperature sensor, the utility model adopts OS136-1-MV-F type infrared temperature sensor, available temperature measurement range is :-18 ~ 202 ° of C (0 ~ 400 °F), OS136 series of infrared temperature transducer has external diameter 19 mm, the stainless steel casing of NEMA 4 (IP66) degree of protection of long 89 mm, be particularly suitable for the temperature survey of narrow and small confined space or rather harsh environments, OS100-MB type support is adopted to be arranged on distribution transformer container body medium position.
Vibration perception submodule adopts two the BZ1185 type piezoelectric acceleration sensors installed at distribution transformer base two ends to obtain position resolver side-play amount.
Electric parameters gathers submodule and adopts and be arranged on the Current Transmit of distribution transformer low-pressure side, electric current, the magnitude of voltage of voltage transformer pt on measuring transformer winding respectively, the utility model adopts cast-type insulation current, voltage transformer, 35KV grade distribution transformer adopt the model of CT, PT be respectively LZZB7-35L, JDZ (F) W-35,10KV grade distribution transformer then adopt respectively model be LZJC-10, JDZ2-6 10 CT, PT.Operation principle and the transformer of instrument transformer are close, namely according to electric current, the magnitude of voltage of instrument transformer primary side, convert the corresponding charge value calculated on distribution transformer winding through instrument transformer winding no-load voltage ratio.
Partial discharge perception submodule can obtain partial discharge of transformer information; the type UHF sensor that the utility model adopts CIGRE etc. to recommend in the world; in accordance with NGC specification; most high energy detects the fine discharge of 0.1pC; measurement bandwidth scope is 500MHz ~ 1.5GHz, and type UHF sensor is arranged on the hand hole of distribution transformer oil tank wall together with hand hole flange end cap, is positioned at distribution transformer inside; type UHF sensor has plastic protection cover, and its position of inserting transformer is generally at about 1cm.
Galvanometer quantum module uses Novel series pro digital universal instrument one end, DT-9929/9939 to connect distribution transformer power line over the ground, and a terminate ground wire directly measures distribution transformer to earth-current.DT-9929/9939 has the accuracy of 40000 bit resolutions and 0.06%, has dual plastic casing and reaches IP67 classification of waterproof.
Actuating mechanism is DS3106 distribution transforming automatic switching device, is installed in distribution power distribution cabinet, for excising fault distribution transformer or overload load.DS3106 distribution transforming automatic switching device can obtain the information such as distribution transformer each position switch state, tap joint position; soft and hardware compatibility is good; easy expansion; various trip protection logic export can flexible configurations configure; field adjustable is convenient; adopt magnetic latching relay, support to operate the switching of two station power distribution transformers simultaneously.
The nucleus equipment of Surveillance center is host computer, assign running status sensing module in instruction controlling run state aware unit by giving running status perception unit middle controller and gather distribution transformer running state data, the data collected are uploaded to host computer through Industrial Ethernet.The real-time distribution transformer running state information obtained is saved in local hard drive and compares with predetermined normal level by host computer, judge whether distribution transformer running status departs from normal value and depart from the degree of normal value, if distribution transformer running status departs from normal value, according to presetting decision content, classification is carried out to the degree departing from normal value, host computer takes the measure of corresponding pre-set level to dispose accordingly, the degree departing from normal value according to distribution transformer running status can be divided into and slightly departing from and substantial deviation 2 ranks corresponding minor failures and catastrophe failure two running statuses respectively.Slightly depart from if occur, host computer sends minor failure and reports to the police, monitor staff is reminded to note running status change and the security of operation of corresponding distribution transformer, and adjust in case progression of failure to distribution transformer running status, if distribution transformer running status worsens further, transfer substantial deviation to from slightly departing from, host computer sends catastrophe failure and reports to the police and excised fault point by assigning the indirect control action mechanism of instruction to the controller in running status perception unit; If distribution transformer running status remains in range of normal value, host computer sends without instruction, and distribution transformer running status sensory perceptual system is in monitoring state, and in running status perception unit, actuating mechanism is failure to actuate; Surveillance center obtains the correlation result of Distribution Network Load Data simultaneously according to the parameter value of distribution transformer running state information, automatically assign instruction when according to preset value, host computer judges that serious overload occurs in distribution and indirectly control actuating mechanism cut-out load in perception unit, Surveillance center administrative staff also the monitoring program of manual operation host computer can control actuating mechanism in perception unit and artificially select to excise some load, to realize distribution transformer Load Regulation.
In the utility model, host computer adopts industrial control computer, i.e. industrial computer, industrial computer is computer that Industry Control designs specially, for carrying out Inspect and control to situ machine equipment, production procedure, data parameters etc., industrial computer has the advantages such as reliability is high, real-time good, autgmentability is strong, compatibility is good.Industrial computer has the ability of stable operation under severe industrial environment, real-time online Detection & Controling can be carried out to industrial processes, the change of quick responsive operation situation also regulates, can also be connected with expanded function with the various peripheral hardwares of industry spot, board, ISA and PCI and PICMG resource can be utilized simultaneously, and support various operating system, multilingual collects, multiple task operating system.The utility model industrial computer adopts the 1200N type industrial computer of Shenyang Zhuo Yi automation, and its computing capability is comparatively strong, has larger memory space, and possess certain shockproof function, well, price is relatively cheap, compares other industrial computers and has higher cost performance for ventilation, anti-dust performance.
Industrial computer installs the monitoring program supporting with distribution transformer running status sensory perceptual system, monitoring program assigns instruction in a certain order the controller in corresponding distribution transformer running status perception unit, gathers the running state data of corresponding distribution transformer.Usually the n station power distribution transformer in guarded region is numbered, the mode gathered in turn is adopted to gather running state data from 1 to n distribution transformer by platform, the data that one-period has gathered n station power distribution transformer start the collection of next cycle again, and the distribution transformer running state data collected is stored in the local hard drive of industrial computer.Monitoring program carries out operational analysis to the distribution transformer running state data collected simultaneously, draws the running status of distribution transformer, then these information and predetermined normal level is contrasted, and judges whether the running status of distribution transformer departs from normal condition.The running status of all distribution transformers in industrial computer monitor configuration display monitoring region, also dynamic shows the running state information of each station power distribution transformer; Adopt FIX configuration software, can be well compatible with monitoring program, and the running state data of each node and the information such as early warning, warning can be made into daily sheet, the moon form, year form, generate historical text figure and store so that in the future for forecast analysis.
embodiment:
For the utility model distribution transformer running status sensory perceptual system, distribution transformer is carried out to the monitoring of this kind of fault of shorted-turn fault.
Surveillance center carries out real-time perception to the running status of n station power distribution transformer in guarded region, monitoring program on industrial computer is numbered this n station power distribution transformer, assign instruction to the controller corresponding distribution transformer running status perception unit for from 1 to No. n, the electric parameters after the controller in running status perception unit accepts instruction in controlling run state aware module gathers submodule and Hot spots detection submodule gathers electric parameters and these relevant distribution transformer running state data of temperature on distribution transformer winding.Gather the above-mentioned running state data of corresponding distribution transformer by platform according to the order gathered in turn, the data that one-period has gathered n station power distribution transformer start the collection of next cycle again.
On the distribution transformer winding that electric parameters is gathered submodule and the collection of Hot spots detection submodule by controller, electric parameters and temperature data upload to Surveillance center by Industrial Ethernet, and electric parameters and temperature data on the distribution transformer winding collected are stored in local hard drive by industrial computer.The monitoring program of industrial computer carries out to electric parameters on distribution transformer winding and temperature data winding loss and the winding temperature that operational analysis draws distribution transformer.The relevant operational state of all distribution transformers in industrial computer monitor configuration display monitoring region, also dynamic shows the relevant operational state information of each station power distribution transformer.
The real-time distribution transformer winding loss obtained and winding temperature and default distribution transformer winding loss and winding temperature normal value are compared by monitoring program, judge whether the winding loss of distribution transformer and winding temperature depart from normal value.If the winding loss of distribution transformer and winding temperature all depart from normal value, the comprehensive analysis in conjunction with these the two kinds of running state data to distribution transformer can draw this conclusion of distribution transformer generation shorted-turn fault; If the winding loss of distribution transformer and winding temperature only have one to depart from normal value, then to need to consider in conjunction with other distribution transformer running state data, to analyze the reason that this running state data departs from normal range (NR), to judge the failure mode of distribution transformer; If the winding loss of distribution transformer and winding temperature all remain in range of normal value, then industrial computer monitoring program sends without instruction, and distribution transformer running status sensory perceptual system is in monitoring state.
The degree winding loss of distribution transformer and winding temperature being departed to normal value carries out classification according to default decision content to the degree that winding loss and winding temperature depart from normal value, industrial computer monitoring program takes the measure of corresponding pre-set level to dispose accordingly, the degree departing from normal value according to distribution transformer running status can be divided into and slightly departing from and substantial deviation 2 ranks corresponding minor failures and catastrophe failure 2 running statuses respectively, correspondingly, distribution transformer turn-to-turn short circuit fault is divided into slight shorted-turn fault and serious shorted-turn fault.If the winding loss of distribution transformer and winding temperature occur slightly to depart from, industrial computer sends slight shorted-turn fault and reports to the police, monitor staff is reminded to note running status change and the security of operation of corresponding distribution transformer, and maintenance is carried out in case progression of failure to distribution transformer, if distribution transformer running status worsens further, winding loss and winding temperature value transfer substantial deviation to from slightly departing from, industrial computer sends serious shorted-turn fault and to report to the police and by assigning the indirect control action mechanism of instruction to the controller in running status perception unit---and fault distribution transformer excises by distribution transformer automatic switching device, monitor staff goes to fault point to change distribution transformer in time.

Claims (7)

1. a distribution transformer running status sensory perceptual system, it is characterized in that: adopt Industrial Ethernet to connect each network node, network node comprises many cover distribution transformer running status perception unit and a Surveillance center in guarded region, Industrial Ethernet adopts hub-and-spoke configuration, node centered by Surveillance center, distribution transformer running status perception unit is branch node and separate, and Surveillance center's node and each distribution transformer running status perception unit branch node carry out point-to-point communication.
2. a kind of distribution transformer running status sensory perceptual system as claimed in claim 1, it is characterized in that: often overlap distribution transformer running status perception unit and comprise controller, running status sensing module and actuating mechanism 3 part, controller is connected with actuating mechanism with running status sensing module respectively by MPI bus; Running status sensing module comprises humidity/gas componant respectively and gathers submodule, oil temperature oil level indicator quantum module, Hot spots detection submodule, vibration perception submodule, electric parameters collection submodule, partial discharge perception submodule, over the ground galvanometer quantum module totally 7 submodules, for gathering distribution transformer running state data; Controller accepts Surveillance center's instruction, completes and gathers running status sensing module data and upload Surveillance center, control action mechanism task; Actuating mechanism is for excising fault distribution transformer and overload load.
3. a kind of distribution transformer running status sensory perceptual system as claimed in claim 1, it is characterized in that: the nucleus equipment of Network Central Node Surveillance center adopts industrial computer IPC, as the host computer of distribution transformer running status sensory perceptual system, for the data of computational analysis from running status sensing module, display distribution transformer running state information, and assign corresponding instruction according to distribution transformer actual motion state to perception cell controller.
4. a kind of distribution transformer running status sensory perceptual system as claimed in claim 1 or 2, it is characterized in that: the controller of distribution transformer running status perception unit is programmable logic controller (PLC) PLC, model is S7-300 (CPU314C--2DP).
5. a kind of distribution transformer running status sensory perceptual system as claimed in claim 1 or 2, it is characterized in that: in the running status sensing module of distribution transformer running status perception unit, humidity/gas componant gathers submodule and adopts HS1101LF capacitor type humidity sensor and nickel doped carbon nanometer pipe gas sensor MWNTs, oil temperature oil level indicator quantum module adopts FST3124DS type distributed fiber grating temperature sensor and YZF2-250M-TH type oil level indicator, Hot spots detection submodule adopts OS136-1-MV-F type infrared temperature sensor, vibration perception submodule adopts BZ1185 type piezoelectric acceleration sensor, electric parameters gathers submodule and adopts Current Transmit, voltage transformer pt, model is respectively 35KV grade: LZZB7-35L and JDZ (F) W-35, 10KV grade: LZJC-10 and JDZ2-6 10, partial discharge perception submodule adopts type UHF sensor, galvanometer quantum module uses DT-9929/9939 Novel series pro digital universal instrument over the ground.
6. a kind of distribution transformer running status sensory perceptual system as claimed in claim 1 or 2, is characterized in that: the actuating mechanism of distribution transformer running status perception unit is DS3106 distribution transforming automatic switching device.
7. a kind of distribution transformer running status sensory perceptual system as described in claim 1 or 3, is characterized in that: the industrial computer IPC model of Surveillance center is 1200N.
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CN106706159A (en) * 2016-12-06 2017-05-24 信阳师范学院 Fiber grating transformer multi-parameter intelligent monitoring system based on multiagent technology
CN107247203A (en) * 2017-07-10 2017-10-13 佛山杰致信息科技有限公司 A kind of transformer fault detection method and device
CN107404152A (en) * 2017-08-09 2017-11-28 国网安徽省电力公司阜阳供电公司 A kind of intelligent power distribution network operation Measuring error integration apparatus
CN108873978A (en) * 2018-06-20 2018-11-23 国网江苏省电力有限公司泰州供电分公司 A kind of power distribution cabinet detecting and controlling internal temperature state automatically
CN110120707A (en) * 2019-05-16 2019-08-13 成都电精灵电力科技有限公司 One kind is for the maintenance of 35KV distribution system operation power and preventive trial early warning system
CN110676936A (en) * 2019-10-14 2020-01-10 国网江苏省电力有限公司镇江供电分公司 Power distribution automation terminal tail end situation sensing system and alarm method
CN111342552A (en) * 2019-05-16 2020-06-26 成都电精灵电力科技有限公司 Early warning system for electric power operation maintenance and preventive test of 0.4KV power distribution system
CN112910101A (en) * 2021-05-10 2021-06-04 国网江西省电力有限公司电力科学研究院 Integrated monitoring system for power distribution transformer station

Cited By (11)

* Cited by examiner, † Cited by third party
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CN106706159A (en) * 2016-12-06 2017-05-24 信阳师范学院 Fiber grating transformer multi-parameter intelligent monitoring system based on multiagent technology
CN106706159B (en) * 2016-12-06 2020-02-11 信阳师范学院 Fiber grating transformer multi-parameter intelligent monitoring system based on multi-main-body technology
CN107247203A (en) * 2017-07-10 2017-10-13 佛山杰致信息科技有限公司 A kind of transformer fault detection method and device
CN107404152A (en) * 2017-08-09 2017-11-28 国网安徽省电力公司阜阳供电公司 A kind of intelligent power distribution network operation Measuring error integration apparatus
CN108873978A (en) * 2018-06-20 2018-11-23 国网江苏省电力有限公司泰州供电分公司 A kind of power distribution cabinet detecting and controlling internal temperature state automatically
CN110120707A (en) * 2019-05-16 2019-08-13 成都电精灵电力科技有限公司 One kind is for the maintenance of 35KV distribution system operation power and preventive trial early warning system
CN111342552A (en) * 2019-05-16 2020-06-26 成都电精灵电力科技有限公司 Early warning system for electric power operation maintenance and preventive test of 0.4KV power distribution system
CN110676936A (en) * 2019-10-14 2020-01-10 国网江苏省电力有限公司镇江供电分公司 Power distribution automation terminal tail end situation sensing system and alarm method
CN110676936B (en) * 2019-10-14 2023-03-21 国网江苏省电力有限公司镇江供电分公司 Power distribution automation terminal tail end situation sensing system and alarm method
CN112910101A (en) * 2021-05-10 2021-06-04 国网江西省电力有限公司电力科学研究院 Integrated monitoring system for power distribution transformer station
CN112910101B (en) * 2021-05-10 2021-09-10 国网江西省电力有限公司电力科学研究院 Integrated monitoring system for power distribution transformer station

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