CN106774034A - A kind of switch cubicle monitoring device - Google Patents

A kind of switch cubicle monitoring device Download PDF

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Publication number
CN106774034A
CN106774034A CN201710146184.6A CN201710146184A CN106774034A CN 106774034 A CN106774034 A CN 106774034A CN 201710146184 A CN201710146184 A CN 201710146184A CN 106774034 A CN106774034 A CN 106774034A
Authority
CN
China
Prior art keywords
dsp chip
sensor
switch cubicle
monitoring device
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710146184.6A
Other languages
Chinese (zh)
Inventor
高阳
冷雪敏
许傲然
高兢
谷彩连
于佳
赵毅
姜竹楠
邹毅
白迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Institute of Engineering
Original Assignee
Shenyang Institute of Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Institute of Engineering filed Critical Shenyang Institute of Engineering
Priority to CN201710146184.6A priority Critical patent/CN106774034A/en
Publication of CN106774034A publication Critical patent/CN106774034A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428Safety, monitoring
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24024Safety, surveillance
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24058Remote testing, monitoring independent from normal control by pc

Abstract

A kind of switch cubicle monitoring device, is made up of dsp chip, Temperature and Humidity unit, displacement transducer and LCD display.Dsp chip uses large-scale industry level digital signal processor TMS320VC5409, and the first wireless communication module is connected on chip;Temperature and Humidity unit includes temperature sensor, humidity sensor and the single-chip microcomputer being connected with humidity sensor with temperature sensor, the second wireless communication module is connected on single-chip microcomputer, temperature detecting unit after the second wireless communication module and the first wireless communication module are communicated, by data wireless transmission to dsp chip;Displacement transducer, is connected by interface circuit with dsp chip;LCD display, by interface circuit and dsp chip, displays temperature and displacement data.The present invention can realize the real-time monitoring of switchgear temperature and humidity, intelligent control heater, automatically adjust ambient humidity, the insulating properties of protection switch equipment, effectively solve the problems, such as to cause equipment damage in switch cubicle because of electric arc heat release.

Description

A kind of switch cubicle monitoring device
Technical field
The invention belongs to power equipment preparation field, more particularly to a kind of switch cubicle monitoring device.
Background technology
High-voltage switch gear cabinet equipment is the key equipment of power system, and the running status of equipment has to the reliability of power system There is significant impact.With the expansion of power plant's capacity, the quantity of power plant's switchgear increases year by year.In order to understand switchgear in time Operation conditions, grasps its variation tendency, for the maintenance and maintenance of equipment provide foundation, with the detection of the presence of switchgear with The research of the intelligent high-voltage switch equipment that fault diagnosis is characterized progressively turns into a heat of Automation of Electric Systems research Point.
Switch in switch cubicle is that two contacts are connected, in moving process is switched, because electric current is produced compared with big city Larger electric arc, the relevant device that can be damaged in switch cubicle if electric arc heat release is too high.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of switch cubicle monitoring device, solve electric arc heat release too high The problem of the relevant device that words can be damaged in switch cubicle.
The present invention is achieved in that a kind of switch cubicle monitoring device, and the equipment is placed on insulating support member, including: Dsp chip, the dsp chip uses large-scale industry level digital signal processor TMS320VC5409, the dsp chip The first wireless communication module of upper connection;Temperature and Humidity unit, including temperature sensor, humidity sensor and and TEMP The single-chip microcomputer that device is connected with humidity sensor, connects the second wireless communication module on the single-chip microcomputer, temperature detecting unit passes through After second wireless communication module and the communication of the first wireless communication module, by data wireless transmission to dsp chip;
Displacement transducer, is connected by interface circuit with dsp chip, and institute's displacement sensors are set to three, are separately positioned on It is detected the 3 phase contacts lower section of switch cubicle;LCD display, by interface circuit and dsp chip, displays temperature and displacement data.
Further, the input of dsp chip is connected with switching voltage sensor, switching current and senses by interface circuit Device, separating brake voltage sensor, separating brake current sensor, tank voltage sensor and energy storage current sensor.
Further, institute's displacement sensors are inserted in displacement transducer using conductive plastic enclosure, by a connecting plate Displacement transducer is drawn the lower section for being connected to contact of breaker.
Further, the output end connection solenoid valve controller of dsp chip, magnetic valve is controlled by the solenoid valve controller The insulating foams sprayer of connection.
Further, on the dsp chip by data acquisition unit connect electric-field sensor, the electric-field sensor with Insulating support member is contacted.
Further, the equipment includes heater, and the heater is connected by magnetic valve with power supply, and magnetic valve passes through electromagnetism After valve control is connected with dsp chip, it is opened and closed by the solenoid valve control.
Further, the dsp chip passes through standard 485 and IEC61850 data-interfaces, by serial ports or usb mouthfuls and notes This computer is attached.
Further, in switchgear internal breaker dynamic/static contact contact position and the arrangement shooting of earthing knife-edge positions Head, the camera is connected transmission data with notebook computer.
Further, in switchgear internal breaker dynamic/static contact contact position and the arrangement shooting of earthing knife-edge positions Head, the camera is connected with dsp chip.
Compared with prior art, beneficial effect is the present invention:The present invention is improved for the monitoring of switchgear humiture Or ambient humidity is reduced, control heater is automatically stopped heating, the insulating properties of protection switch equipment.Solve electric arc heat release too high If the problem of relevant device that can damage in switch cubicle.
The displacement transducer feature of use is to use conductive plastic enclosure, can quickly be shunted in killer switch big Electric current, protects displacement transducer core not impacted, and plastic casing is lightweight in addition, to the opening and closing movement of breaker burden compared with It is small.Displacement transducer is arranged in the measurement for carrying out breaking mechanical property below moving contact of breaker.3 independent displacements Sensor can respectively measure the motion of 3 phase contacts.
Data processing is carried out to collection signal using digital signal processor TMS320VC5409, numeral is carried out using DSP During signal transacting, signal can be extracted from noise, i.e., there is noise and the mixing source of signal to sample to one, Ran Houjing Cross internal digital filter and filter noise, extract useful signal, electromagnetic interference is big, and surge is strong.
Data acquisition unit connection electric-field sensor is crossed, electric-field sensor is contacted to insulative support parts with insulating support member The measurement of part leakage current, detects that the precision of leakage current reaches 2%;Leakage current alarming threshold value can be set, and forecast leakage current The rate of accuracy reached of failure is to 100%.
Brief description of the drawings
Fig. 1 is device structure schematic diagram provided in an embodiment of the present invention.
Fig. 2 is the structural representation of displacement transducer provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Referring to Fig. 1, a kind of switch cubicle monitoring device, the equipment is placed on insulating support member, including:Dsp chip, DSP Chip uses large-scale industry level digital signal processor TMS320VC5409, and the first wireless telecommunications are connected on dsp chip Module, the first wireless communication module here uses existing module, such as can be SL-TR01 type temperature in the present embodiment Degree wireless module;To one there is noise and signal to mix using large-scale industry level digital signal processor TMS320VC5409 Conjunction source is sampled, then by a digital filtering inside large-scale industry level digital signal processor TMS320VC5409 Device filters noise, extracts useful signal.
Temperature and Humidity unit, including temperature sensor, humidity sensor and with temperature sensor and humidity sensor AT89S52 single board computer-the 24PU of connection, connects the second wireless communication module on single-chip microcomputer, temperature detecting unit is by described the After two wireless communication modules and the communication of the first wireless communication module, by data wireless transmission to dsp chip;In the present embodiment, adopt It is capable of achieving with the temperature sensor and humidity sensor of disposable type on the market.Temperature and Humidity unit is by 2.4G without line number Temperature data is sent according to transmission means.
Displacement transducer is set, is connected with dsp chip by interface circuit, displacement transducer is set to three, sets respectively Put and be detected below 3 phase contacts of switch cubicle;Here interface circuit is the conventional interface circuit for connecting dsp chip.Referring to Fig. 2, displacement transducer 2 is inserted in displacement transducer 2 using conductive plastic enclosure 1, by a connecting plate 3 by displacement transducer Extraction is connected to the lower section of contact of breaker 4.
LCD display passes through interface circuit and dsp chip, displays temperature and displacement data.
Switching voltage sensor, switching current sensor, separating brake are connected with by interface circuit in the input of dsp chip Voltage sensor, separating brake current sensor, tank voltage sensor and energy storage current sensor, switching voltage electric current are contact Rear contact voltage-to-ground is closed, contact flows through electric current, and separating brake voltage x current is the voltage and current between switch opens moment contact, Tank voltage electric current is to provide electrodynamic voltage x current to open being automatically brought into operation for contact.
The output end connection solenoid valve controller of dsp chip, controls what magnetic valve was connected by the solenoid valve controller Insulating foams sprayer.Here solenoid valve controller be custom circuit, specific structure is no longer given herein, if overheat and Electric current is excessive, to insulating foams are sprayed in switch cubicle, prevents on fire, while controlling each communication interface, receives and sends display number According to.
Electric-field sensor is connected by data acquisition unit on dsp chip, electric-field sensor connects with insulating support member Touch.The model C2000CJ200 that data acquisition unit herein can be used, electric-field sensor uses to have bought on the market to be had The sensor of this function can be realized, for example with the electric-field sensor of mc33794 models.
The equipment includes heater, and heater is connected by magnetic valve with power supply, magnetic valve pass through solenoid valve controller and After dsp chip connection, it is opened and closed by the solenoid valve control.Ambient humidity is improved or reduces, when temperature rises to predetermined value and wet During angle value, control heater is automatically stopped heating, the insulating properties of protection switch equipment.
Dsp chip is carried out by standard 485 and IEC61850 data-interfaces by serial ports or usb mouthfuls and notebook computer Connection.
In switchgear internal breaker dynamic/static contact contact position and earthing knife-edge positions arrangement camera, shooting Head is connected transmission data with notebook computer.
Motion process and running status that camera is used for inside monitoring device, make operating personnel in remote operation apparatus mistake In journey can direct real-time monitored device interior dynamic video, grasp control motion process and implementing result.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.

Claims (8)

1. a kind of switch cubicle monitoring device, it is characterised in that the equipment is placed on insulating support member, including:Dsp chip, institute State dsp chip and use large-scale industry level digital signal processor TMS320VC5409, first is connected on the dsp chip Wireless communication module;Temperature and Humidity unit, including temperature sensor, humidity sensor and passed with temperature sensor and humidity The single-chip microcomputer of sensor connection, connects the second wireless communication module on the single-chip microcomputer, temperature detecting unit is by second nothing After line communication module is communicated with the first wireless communication module, by data wireless transmission to dsp chip;Displacement transducer, by connecing Mouth circuit is connected with dsp chip, and institute's displacement sensors are set to three, are separately positioned on 3 phase contacts of detected switch cubicle Lower section;LCD display, by interface circuit and dsp chip, displays temperature and displacement data.
2. switch cubicle monitoring device as claimed in claim 1, it is characterised in that the input of dsp chip passes through interface circuit Switching voltage sensor, switching current sensor, separating brake voltage sensor, separating brake current sensor, tank voltage is connected with to pass Sensor and energy storage current sensor.
3. switch cubicle monitoring device as claimed in claim 1, it is characterised in that institute's displacement sensors are using outside conductive plastics Valve jacket enters in displacement transducer, and displacement transducer is drawn the lower section for being connected to contact of breaker by a connecting plate.
4. switch cubicle monitoring device as claimed in claim 1, it is characterised in that the output end connection electromagnetism of the dsp chip Valve control, the insulating foams sprayer of magnetic valve connection is controlled by the solenoid valve controller.
5. switch cubicle monitoring device as claimed in claim 1, it is characterised in that pass through data acquisition on the dsp chip Unit connects electric-field sensor, and the electric-field sensor is contacted with insulating support member.
6. switch cubicle monitoring device as claimed in claim 1, it is characterised in that the equipment includes heater, the heater Be connected with power supply by magnetic valve, magnetic valve after solenoid valve controller is connected with dsp chip, by the solenoid valve control Opening and closing.
7. switch cubicle monitoring device as claimed in claim 1, it is characterised in that the dsp chip passes through the He of standard 485 IEC61850 data-interfaces, are attached by serial ports or usb mouthfuls and notebook computer.
8. switch cubicle monitoring device as claimed in claim 7, it is characterised in that in switchgear internal breaker dynamic/static contact Contact position and earthing knife-edge positions arrangement camera, the camera are connected transmission data with notebook computer.
CN201710146184.6A 2017-03-13 2017-03-13 A kind of switch cubicle monitoring device Pending CN106774034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710146184.6A CN106774034A (en) 2017-03-13 2017-03-13 A kind of switch cubicle monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710146184.6A CN106774034A (en) 2017-03-13 2017-03-13 A kind of switch cubicle monitoring device

Publications (1)

Publication Number Publication Date
CN106774034A true CN106774034A (en) 2017-05-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109887031A (en) * 2019-01-30 2019-06-14 国网湖南省电力有限公司 Position and posture detection method, system, medium and the equipment of earthing knife-switch in a kind of switchgear
CN110362137A (en) * 2019-07-19 2019-10-22 武汉华源铸诚电力股份有限公司 A kind of power detecting management system
CN111829589A (en) * 2020-07-16 2020-10-27 湖北航天保华科技股份有限公司 Anti-interference self-checking system of military electric cabinet in complex environment
CN112834064A (en) * 2019-11-25 2021-05-25 北京小米移动软件有限公司 Temperature detection device

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CN102244416A (en) * 2010-11-16 2011-11-16 江苏科技大学 Intelligent cubicle switchboard oriented to intelligent power grid and operating and controlling method thereof
CN202059213U (en) * 2011-04-07 2011-11-30 江苏科技大学 High tension switchgear controller possessing on-line monitoring and network communication functions
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CN104174131A (en) * 2014-09-01 2014-12-03 国家电网公司 Self-extinguishing device for cable
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109887031A (en) * 2019-01-30 2019-06-14 国网湖南省电力有限公司 Position and posture detection method, system, medium and the equipment of earthing knife-switch in a kind of switchgear
CN110362137A (en) * 2019-07-19 2019-10-22 武汉华源铸诚电力股份有限公司 A kind of power detecting management system
CN112834064A (en) * 2019-11-25 2021-05-25 北京小米移动软件有限公司 Temperature detection device
CN111829589A (en) * 2020-07-16 2020-10-27 湖北航天保华科技股份有限公司 Anti-interference self-checking system of military electric cabinet in complex environment

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