CN202931028U - Intelligent monitoring device of distribution transformer - Google Patents

Intelligent monitoring device of distribution transformer Download PDF

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Publication number
CN202931028U
CN202931028U CN2012204772943U CN201220477294U CN202931028U CN 202931028 U CN202931028 U CN 202931028U CN 2012204772943 U CN2012204772943 U CN 2012204772943U CN 201220477294 U CN201220477294 U CN 201220477294U CN 202931028 U CN202931028 U CN 202931028U
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China
Prior art keywords
distribution transformer
monitoring
board
monitoring device
data input
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Expired - Fee Related
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CN2012204772943U
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Chinese (zh)
Inventor
王保荣
阎侯赖
程益峰
李思绪
康慧
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Beikai Electric Co., Ltd.
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BEIKAI ELECTRIC Co Ltd
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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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/242—Home appliances
    • Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The utility model relates to an intelligent monitoring device and a control method of a distribution transformer and solves a problem that efficiency of a monitoring system in the prior art is restricted because of no unified platform. A technical scheme is characterized in that the intelligent monitoring device is used for monitoring and managing the distribution transformer, a third monitoring device, a load and a high/ low voltage side switch of the distribution transformer. The intelligent monitoring device comprises a field monitoring device and a remote management device, the field monitoring device comprises a plurality of data input/output plates which are in electrical connection with the distribution transformer and the high/ low voltage side switch of the distribution transformer, a monitoring plate having a calculation control function and a display plate, the third monitoring device, the data input/output plates and the display plate are respectively in electrical connection with the monitoring plate, and the monitoring plate is in communication connection with the remote management device through network wire. The intelligent monitoring device can realize real-time monitoring, prediction and control of the load of the distribution transformer, carries out alarm and fault record, improves a system integration level, simplifies the system and is more reliable in operation.

Description

The distribution transformer intelligence monitoring and controlling device
Technical field
The utility model relates to a kind of electric monitoring device, particularly a kind of distribution transformer intelligence monitoring and controlling device.
Background technology
At present, the monitoring of distribution transformer and control be divided into two classes independently system complete.Wherein, the monitoring of distribution transformer is divided into again the body checkout gear and to the monitoring of distribution transformer load.Distribution transformer body Detection of content comprises oil temperature (only limitting oil immersed type), oil level (only limitting oil immersed type), hot(test)-spot temperature, light gas (only limitting oil immersed type), heavy gas (only limitting oil immersed type) and air pressure.The distribution transformer load detects and mainly comprises common electric parameters, as electric current, voltage, active power, reactive power, power factor (PF) and electric flux monitoring.In the equipment of operation, distribution transformer body monitoring equipment and load monitoring equipment are most of at the scene is equipment independently, even if some body monitoring devices have both the sub-load monitoring function, some load monitoring devices (main as metering with) have both part body monitoring function, but both always arranged dividing of primary and secondary.Use to the data that monitor also maintains lower level, show as the upper lower limit value that normal range of operation is set, after the data that monitor (comprising the data that Monitoring Data is calculated) depart from normal range (NR), to user's alarm, the reminding user on-call maintenance.The control of distribution transformer comprises that cooler is controlled and the control of on-load voltage regulating switch, is independently equipment, and is provided by corresponding module manufacturer.In a word, at present distributing transformer monitoring, platform that the monitoring neither one is unified are selected required function and characteristics for the user by configuration.In addition, at present document format data and the communication protocol of the various intellectual monitorings of distribution transformer and control device are different, can not interoperability, restricted data sharing, and restricted the efficient of supervisory control system.
China Patent Publication No. CN202177958U, open day on March 28th, 2012, a kind of monitoring device of transformer is disclosed, comprise phase voltage detection circuit, the trigger switch circuit, analog switching circuit, single chip machine controlling circuit and wireless transceiver circuit, the signal of described phase voltage detection circuit collection sends to voltage comparator circuit, the output signal of voltage comparator circuit and trigger switch circuit sends to single chip machine controlling circuit through analog switching circuit, controlled by single chip machine controlling circuit and export wireless transceiver circuit to, this device adopts voltage transformer to gather voltage signal, cut circuit through analog switch and change selection collection voltage signal, judge whether the transformer output cable is cut off or have a power failure, and adopt the optical coupled switch circuits for triggering to judge whether external switch is moved as transformer, when collecting stolen signal, after the judgement of single-chip microcomputer logic is processed, send alarm signal through wireless transmitter module to the Receiving Host module, timely and effectively notify the operator on duty.But this technical scheme still exists, and at present distributing transformer monitoring, platform that the monitoring neither one is unified are selected required function and characteristics for the user by configuration, can not interoperability, restricted data sharing, and restricted the efficient of supervisory control system.
The utility model content
The purpose of this utility model is to solve the prior art distributing transformer monitoring, platform that the monitoring neither one is unified is selected required function and characteristics for the user by configuration, can not interoperability, restricted data sharing, restricted the problem of the efficient of supervisory control system, a kind of Real-Time Monitoring, prediction and control distribution transformer load is provided, reports to the police and the distribution transformer intelligence monitoring and controlling device of failure logging.
the technical scheme that its technical problem that solves the utility model adopts is: a kind of distribution transformer intelligence monitoring and controlling device, be used for monitoring and management distribution transformer, third party's monitoring device, load and distribution transformer high and low pressure side switch, comprise on-site supervision device and long-distance management device, described on-site supervision device comprises the some data input/output boards that are electrically connected to distribution transformer and distribution transformer high and low pressure side switch, have and calculate monitor board and the display panel of controlling function, third party's monitoring device, data input/output board and display panel all are electrically connected to monitor board, described monitor board is connected with described long-distance management device communication by netting twine.
As preferably, described data input/output board is respectively an analog input that gathers at most 16 tunnel electric signals and non-electric signal, a maximum switching value tablet that gathers 16 way switch status signals, a maximum digital output module of controlling 16 tunnel relay outputs.
As preferably, be provided with a RS232 interface and a RS485 interface on described monitor board, described monitor board is electrically connected to display panel by the RS232 interface, and described monitor board is electrically connected to third party's monitoring device by the RS485 interface.
As preferably, be the data input/output board that is provided with dsp processor on described data input/output board, described data input/output board is connected by isa bus with monitor board.
As preferably, described monitor board be the monitor board that is provided with the PC104 processor.
The beneficial effects of the utility model are: the utility model can carry out Real-Time Monitoring, prediction and control distribution transformer load, reports to the police and failure logging, and level of integrated system improves, and system oversimplifies, and moves more reliable.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structural representation that in the utility model, the on-site supervision device is connected with transformer.
In figure: 1, long-distance management device, 2, monitor board, 3, display panel, 4, analog input, 5, switching value tablet, 6, digital output module, 7, third party's monitoring device, 8, isa bus, 9, RS232 connecting line, 10, RS485 connecting line, 11, the on-site supervision device, 12, transformer.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
a kind of distribution transformer intelligence monitoring and controlling device (referring to accompanying drawing 1), be used for monitoring and management distribution transformer 12, third party's monitoring device 7, load and distribution transformer high and low pressure side switch, comprise on-site supervision device 11 and long-distance management device 1, on-site supervision device 11 comprises three and distribution transformer 12, the data input/output board that load and distribution transformer high and low pressure side switch are electrically connected to, have and calculate monitor board 2 and the display panel 3 of controlling function, third party's monitoring device 7, data input/output board and display panel 3 all are electrically connected to monitor board 2, monitor board 2 is connected with long-distance management device 1 communication by netting twine.The data input/output board is respectively 4, maximum 5, the maximum digital output modules 6 of controlling 16 tunnel relay outputs of switching value tablet that gather 16 way switch status signals of analog input that gather at most 16 tunnel electric signals and non-electric signal.Be provided with a RS232 interface and a RS485 interface on monitor board 2, monitor board 2 is electrically connected to display panel 3 by RS232 connecting line 9, and monitor board 2 is electrically connected to third party's monitoring device 7 by RS485 connecting line 10.Be the data input/output board that is provided with dsp processor on the data input/output board, the data input/output board is connected by isa bus 8 with monitor board 2.Monitor board 2 is for being provided with the monitor board 2 of PC104 processor.Long-distance management device 1 is for being arranged on user PC and the management software system in Control Room.
When the present embodiment used, analog input can gather at most 16 tunnel electric signals and non-electric signal; The switching value tablet can maximumly gather 16 way switch status signals; Digital output module can maximumly be controlled 16 tunnel relay outputs.The I/O plate is completed the collection of analog quantity and the amount of opening the light signal, computing; Result is transferred to the data processing module of monitor board software systems by hardware bus.The I/O plate is connected by isa bus with monitor board, and sampled data is transferred to monitor board, processes for monitor board.Core processor PC104 is arranged on monitor board, and the monitor board software systems are divided into lower module: data processing module, control algolithm module, cooler management module, arbitration output module, definite value file, IEC61850 communication module and definite value module.
Data processing module: accept the data of DSP data acquisition module, data are taken out point, played the calculating of markers and fundamental physical quantity; Need to read system parameters and user's configuration parameter of definite value module in calculating, operation result is outputed to respectively control algolithm module and shared drive; Simultaneously real time data is passed through shared drive, pass to the IEC61850 communication module, in the real-time status of local and remote demonstration transformer.Owing to adopting DSP cluster sampling, make above various function use identical data source, got rid of data time synchronous error and comparative analysis error that present plurality of devices is sampled separately and caused.
Control algolithm module: comprise starting algorithm and start and control two submodules.The starting algorithm module is static module, calls the cooler quantity that this module need start according to temperature or Time Calculation, temperature and the load of prediction transformer for starting control module.Start control module according to user's cooling definite value setting and Current Temperatures or time, call the starting algorithm module, calculate the blower fan quantity that needs operation, this result is input to the arbitration output module.
Cooler management module: according to operation and the failure condition of definite value and current cooler, if the rising of judgement temperature needs the selection of the cooler of input, if temperature reduces the selection that need stop cooler.
The arbitration output module: according to control module output, call cooler management module, then the cooler that decision specifically starts or stops sends and starts or stops order.
Definite value file: saved system parameter and user's parameters.
IEC61850 communication module: be responsible for and the long-distance management device communication, accept long-distance user's order or configuration.
Definite value module: read the definite value file, accept the IEC61850 communication module about the configuration information that the long-distance user issues, write configuration file.
Be arranged on the PC of remote monitoring indoor user, the user can browse the real-time status of transformer and device, and the data of change configuration and calling field device are carried out advanced analysis.
Monitor board is completed data and is calculated, analyzes judgement, file generated and storage, control output, alarm output and communication task.Wherein, data are calculated and are comprised that power data, order component calculate, cooler is managed computing, quality of power supply computing; Analyze judgement and refer to accident analysis.Monitor board and management software networking.
The user can browse by long-distance management device 1 real-time status of transformer and device, and the data of change configuration and calling field device are carried out advanced analysis.
A kind of control method of distribution transformer intelligence monitoring and controlling device is applicable to monitor the distribution transformer intelligence monitoring and controlling device of oil immersion-type distribution transformer, and the control method of described distribution transformer intelligence monitoring and controlling device comprises the following steps:
Step 1, at first carry out data acquisition: gather oil temperature, oil pressure, oil dissolved gas, winding temperature, ambient temperature, light/heavy gas, transformer two ends on off state, electric current and voltage signal, calculate in real time the life-span of the temperature changing trend of hot spot temperature of winding, prediction transformer and load capacity, calculating transformer according to IEC60076-7.When carrying out image data, the switching value signal by photoelectricity isolate, hardware filtering is transformed into digital signal, analog signals becomes digital signal by the isolation of light lotus root, signal condition and A/D transitions, these signals are for monitor board analysis and processing.
step 2, then cooler is controlled and temperature treatment: quantity and the time of controlling the cooler operation according to the top-oil temperature of oil-filled transformer, transformer is moved in normal temperature range, calculate in real time hot spot temperature of winding, temperature changing trend and the load capacity of prediction transformer, the life-span of calculating transformer, control the method for refrigerator for controlling by temperature, refer to user's design temperature critical value and corresponding operation cooler package quantity with it according to the temperature controlled refrigerating device, arrive the critical value of setting when temperature, and after keeping setting-up time on this critical value, start the shortest cooling group of accumulated running time, make the cooler package quantity of operation reach the set point corresponding with this critical value, when temperature is in downward trend, and drop to lower than a certain critical value and deduct return value, after namely also keeping the time of delay of appointment under the temperature line of low return value than critical value, stop this and start the longest cooler running time, make the cooler package quantity setting quantity corresponding with this critical value of operation,
Step 3 is carried out electric parameters and is calculated, and calculates active power, reactive power, power factor, forward active electrical degree, reverse idle electric degree that this distribution transforming is exported;
Step 4, quality of power supply record is according to the electric current that gathers, voltage signal, according to frequency computation part tri-phase unbalance factor, harmonic content, the mains frequency of user's setting;
Step 5, failure logging: according to the electric current that collects and voltage signal, calculate the order component; Critical value according to the user sets records negative-sequence current, negative sequence voltage, most common failure or the event of judgement three-phase overcurrent, zero sequence overvoltage, zero sequence overcurrent and transformer;
Step 6, monitoring transformer two ends isolation switch state, with the separate event record, monitoring transformer two ends isolation switch state, switch close a minute state, on-load switch state, according to the correctness of network topology analysis on off state; The closed and disconnected of switch is all with the separate event record;
Step 7, during at transformer body or by load derivation fault, system is in local and remote while alarm,
Step 8, data storages: the data that above-mentioned steps 2 is calculated in the step 6 are stored in the memory of local terminal, and are periodically read by remote management system and call,
Step 9, the local and remote administration system shows real-time status and the load condition of transformer body.
Embodiment 2:
A kind of control method of distribution transformer intelligence monitoring and controlling device, be applicable to the distribution transformer intelligence monitoring and controlling device of dry-type distribution transformer, the control method of described distribution transformer intelligence monitoring and controlling device is substantially the same manner as Example 1, difference is, described step 1 gathers winding temperature, ambient temperature, on-load switch state, electric current and voltage signal; Described step 2, control quantity and the time of cooler operation according to the winding temperature of dry-type transformer, transformer is moved in normal temperature range, calculate in real time hot spot temperature of winding, temperature changing trend and the load capacity of prediction transformer, the life-span of calculating transformer; The method of controlling refrigerator is to control refrigerator according to the time, 24 hours of user every day according to being divided into several time periods when ground temperature and load characteristic, specify operation cooler package number corresponding to each time period, transformer temperature is arranged trip temperature, namely when transformer reaches this temperature value, disconnect on-load switch and send simultaneously alarm signal.
Above-described embodiment is a kind of better scheme of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.

Claims (4)

1. distribution transformer intelligence monitoring and controlling device, be used for monitoring and management distribution transformer, third party's monitoring device, load and distribution transformer high and low pressure side switch, it is characterized in that: comprise on-site supervision device and long-distance management device, described on-site supervision device comprises the some data input/output boards that are electrically connected to distribution transformer and distribution transformer high and low pressure side switch, have and calculate monitor board and the display panel of controlling function, third party's monitoring device, data input/output board and display panel all are electrically connected to monitor board, described monitor board is connected with described long-distance management device communication by netting twine, be provided with a RS232 interface and a RS485 interface on described monitor board, described monitor board is electrically connected to display panel by the RS232 interface, described monitor board is electrically connected to third party's monitoring device by the RS485 interface.
2. distribution transformer intelligence monitoring and controlling device according to claim 1, it is characterized in that: described data input/output board is respectively an analog input that gathers at most 16 tunnel electric signals and non-electric signal, a maximum switching value tablet that gathers 16 way switch status signals, a maximum digital output module of controlling 16 tunnel relay outputs.
3. distribution transformer intelligence monitoring and controlling device according to claim 1, it is characterized in that: be the data input/output board that is provided with dsp processor on described data input/output board, described data input/output board is connected by isa bus with monitor board.
4. distribution transformer intelligence monitoring and controlling device according to claim 1, it is characterized in that: described monitor board is the monitor board that is provided with the PC104 processor.
CN2012204772943U 2012-09-19 2012-09-19 Intelligent monitoring device of distribution transformer Expired - Fee Related CN202931028U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957208A (en) * 2012-09-19 2013-03-06 北开电气集团有限公司 Intelligent monitoring device of power distribution transformer and control method thereof
CN107870595A (en) * 2017-12-14 2018-04-03 中国恩菲工程技术有限公司 The intelligent treatment device for low-voltage distribution system based on IEC61850
CN112834819A (en) * 2021-01-04 2021-05-25 杭州万高科技股份有限公司 Digital signal processing device and method for electric energy metering chip

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957208A (en) * 2012-09-19 2013-03-06 北开电气集团有限公司 Intelligent monitoring device of power distribution transformer and control method thereof
CN102957208B (en) * 2012-09-19 2014-07-30 北开电气集团有限公司 Intelligent monitoring device of power distribution transformer and control method thereof
CN107870595A (en) * 2017-12-14 2018-04-03 中国恩菲工程技术有限公司 The intelligent treatment device for low-voltage distribution system based on IEC61850
CN112834819A (en) * 2021-01-04 2021-05-25 杭州万高科技股份有限公司 Digital signal processing device and method for electric energy metering chip
CN112834819B (en) * 2021-01-04 2024-04-02 杭州万高科技股份有限公司 Digital signal processing device and method for electric energy metering chip

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GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160215

Address after: Two Jiashan County town of Jiaxing city cloud cloud road 314113 Zhejiang province No. 188 Building 1 Room 408

Patentee after: Beikai Electric Co., Ltd.

Address before: Two Jiashan County town of Jiaxing city cloud cloud road 314113 Zhejiang province No. 188

Patentee before: Beikai Electric Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130508

Termination date: 20180919

CF01 Termination of patent right due to non-payment of annual fee