CN107728524A - A kind of storage system of high-tension switch cabinet shelf depreciation status data - Google Patents
A kind of storage system of high-tension switch cabinet shelf depreciation status data Download PDFInfo
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- CN107728524A CN107728524A CN201711027190.6A CN201711027190A CN107728524A CN 107728524 A CN107728524 A CN 107728524A CN 201711027190 A CN201711027190 A CN 201711027190A CN 107728524 A CN107728524 A CN 107728524A
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- module
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- coupler
- switch cabinet
- transceiver
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Acoustics & Sound (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a kind of storage system of high-tension switch cabinet shelf depreciation status data,Including ZigBee sensor nodes and memory module,ZigBee sensor nodes include ultrasonic sensor modules,Ultrasonic signal conditioning module,Uhf sensor module,Ultra-high frequency signal conditioning module,Ultraviolet senses and conditioning module and processor,Ultrasonic signal conditioning unit includes amplifying circuit,Filter circuit and A/D change-over circuits,Ultraviolet senses and conditioning module includes ultraviolet light photo converting unit,High drive unit,I/U converting units,Pulse Amplifier Unit and pulse discriminator unit,Memory module includes DSP processing modules,Power module,Interface module,Data management control module,SD storage cards,CAN,Upper computer detection module,Display screen,Reseting module and button;The present invention realizes comprehensive to switch cabinet state, real-time data storage, and data-handling capacity is strong, memory capacity is big, reliability is high and stability is good.
Description
Technical field
The present invention relates to computer memory system, particularly a kind of storage system of high-tension switch cabinet shelf depreciation status data
System.
Background technology
With support of the development and related industry policy of national economy to power industry, power industry, which turns into, to be ensured
The mainstay of national economy operation.And with the development of power industry, stability and reliability to Operation of Electric Systems will
Also more and more higher is sought, and is also progressively exposed the drawbacks of General Electric Network.Therefore, in the case of traditional operation of power networks problem,
Intelligent grid is going into the visual field of people, and starts progressively to turn into the main force of modern city power network conveying.Intelligent grid
It is to be derived on the basis of modern advanced is merged, such as intelligent Decision Technology, integrated technology, Modern Tracking Technology's
Deng.By conveying of the intelligent grid to electric power, the high efficiency and reliability of power Transmission are substantially increased, so as to meet the modern times
Society avoids the waste of electric power resource, and reduce the pollution to environment to the demand of electricity.
The visual plant that Intelligent high voltage switch cabinet is run as intelligent grid, to ensureing that the safe operation of intelligent grid plays
Very important effect.In intelligent grid, insulation fault, which is typically considered, causes Intelligent high voltage switch cabinet and other equipment
The reason for one to break down is extremely important.And Intelligent high voltage switch cabinet shelf depreciation is as evaluation switch cubicle insulating properties
Important indicator, once shelf depreciation is to a certain extent, great harm will be brought to whole operation of power networks.Therefore, strengthen to height
The monitoring for the cabinet shelf depreciation problem that compresses switch, and insulation fault present in discovering device in time, the generation to preventing accident, are carried
Reliability of high operation of power networks etc. has very big value and significance.
High-tension switch cabinet is widely used in each link of power network, and its safe operation is directly connected to whole power network
Safety and power system are one of most important electrical equipments in power system to the power supply quality of user.Traditional height presses off
The mode of manual patrol must be carried out or take under power down mode by closing the detection of cabinet internal fault, and interruption maintenance not only causes equipment can
With the decline of rate and customer power supply reliability, and can only periodically it carry out, in period distances, equipment is in bad repair, out of control
State, once breaking down, it is unable to timely processing.In addition, switch cubicle is as closed equipment, if there is exception in equipment in cabinet,
Even if operations staff's periodical inspection also is difficult to find, it is difficult to reaches the requirement for grasping equipment deficiency in time.Therefore, it is highly desirable
A kind of technology of real-time online is taken to be monitored high-tension switch cabinet.
High-tension switch cabinet internal unit is numerous, and arrangement is more and more compacter, and insulation margin is smaller, especially in summer air ratio
Sultryyer moist south, equipment surface, which triggers, climbs electricity.In long-term running, by electricity, hot, chemical effect
Slowly there is aging or deterioration in insulation, causes electrical insulation strength to reduce, or even break down.Accident statistics show, in recent years
Many insulation faults mainly caused by shelf depreciation.Inside switch cabinet hardware is in a manufacturing process or in installation and operation
The defects of latent, in the presence of long-term high voltage, high temperature, humidity, vibration etc., also easily trigger shelf depreciation.Shelf depreciation
Detection and the important means that is monitored as insulation status of evaluation, can be with the insulation status of dynamic reflection electrical equipment, and realize
Early warning to apparatus insulated Hidden fault, pass through the effective sexual behavior event that averts a calamity of the analysis to testing result and processing
Occur.
Substantial amounts of historical action data are preserved in high-tension switch cabinet monitoring system, perfect database is formed, is commented for state
Offer initial data is provided.High-tension switch cabinet monitoring system uses non-volatile FLASH as storage medium more at present, according to advanced
The principle of recording first gone out preserves the data waveform acted recently, is wiped after record event exceedes this scope, Large Copacity
Data are not easy to store.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art and to provide a kind of high-tension switch cabinet local
The storage system of discharge condition data, the present invention realize comprehensive to switch cabinet state, real-time data storage, data-handling capacity
By force, memory capacity is big, reliability is high and stability is good.
The present invention uses following technical scheme to solve above-mentioned technical problem:
According to a kind of storage system of high-tension switch cabinet shelf depreciation status data proposed by the present invention, including ZigBee sensors
Node and memory module, ZigBee sensor nodes include ultrasonic sensor modules, ultrasonic signal conditioning module, hyperfrequency
Sensor assembly, ultra-high frequency signal conditioning module, ultraviolet sensing and conditioning module and processor, ultrasonic signal conditioning unit
Including amplifying circuit, filter circuit and A/D change-over circuits, ultraviolet sensing and conditioning module include ultraviolet light photo converting unit,
High drive unit, I/U converting units, Pulse Amplifier Unit and pulse discriminator unit, memory module include DSP processing modules,
Power module, interface module, data management control module, SD storage cards, CAN, upper computer detection module, display
Screen, reseting module and button;Wherein,
Ultrasonic sensor modules, amplifying circuit, filter circuit, A/D change-over circuits and processor are linked in sequence successively, hyperfrequency
Sensor assembly, ultra-high frequency signal conditioning module and processor are linked in sequence successively, ultraviolet light photo converting unit, high drive list
Member, I/U converting units, Pulse Amplifier Unit, pulse discriminator unit and processor are linked in sequence successively, processor and DSP processing
Module connect, power module, interface module, display screen, reseting module, data management control module, CAN respectively with
DSP processing modules are connected, and data management control module is connected with SD storage cards, and CAN connects with ipc monitor module
Connect.
As a kind of further side of optimization of storage system of high-tension switch cabinet shelf depreciation status data of the present invention
Case, CAN include first resistor to the 5th resistance, the first electric capacity to the 3rd electric capacity, controller, the first photo-coupler,
Second photo-coupler and transceiver;Wherein, the input of controller connects respectively with second resistance, the output end of the second photo-coupler
Connect, the other end of second resistance is connected respectively with the power end of power supply, one end of the first electric capacity, the second photo-coupler, the first electricity
The other end ground connection of appearance, the earth terminal ground connection of the second photo-coupler, the input of the second photo-coupler and the data of transceiver are sent out
Sending end connection, one end connection of the output end and first resistor of controller, the other end of first resistor and the first photo-coupler
Input connects, the earth terminal ground connection of the first photo-coupler, the voltage end of the first photo-coupler and one end of 3rd resistor, second
One end of electric capacity, power supply connect respectively, the other end of the second electric capacity ground connection, the other end of 3rd resistor and the first photo-coupler
Output end, the receiving terminal of transceiver are connected respectively, and the clear terminal of transceiver is connected with one end of the 4th resistance, the 4th resistance it is another
The earth terminal of one end and transceiver, connect respectively, one end of the power end of transceiver and the 3rd electric capacity, power supply are connected respectively,
The other end of 3rd electric capacity and the high level output end of transceiver, one end of the 5th resistance connect respectively, the 5th resistance it is another
End is connected with the low level output end of transceiver.
As a kind of further side of optimization of storage system of high-tension switch cabinet shelf depreciation status data of the present invention
Case, controller are single-chip microcomputer.
As a kind of further side of optimization of storage system of high-tension switch cabinet shelf depreciation status data of the present invention
Case, the model 89C51 of single-chip microcomputer.
As a kind of further side of optimization of storage system of high-tension switch cabinet shelf depreciation status data of the present invention
Case, power module are+5V power supplys.
The present invention compared with prior art, has following technique effect using above technical scheme:
(1)The present invention realizes comprehensive to switch cabinet state, real-time data storage, and data-handling capacity is strong, memory capacity is big, can
It is high good with stability by property.
(2)The information of high-voltage switch gear is gathered using DSP powerful data-handling capacity, is carried out using mass-memory unit
Data preserve, and system can realize the long-term storage of data.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings:
As shown in figure 1, a kind of storage system of high-tension switch cabinet shelf depreciation status data, including ZigBee sensor nodes and
Memory module, ZigBee sensor nodes include ultrasonic sensor modules, ultrasonic signal conditioning module, uhf sensor
Module, ultra-high frequency signal conditioning module, ultraviolet sensing and conditioning module and processor, ultrasonic signal conditioning unit include putting
Big circuit, filter circuit and A/D change-over circuits, ultraviolet sensing and conditioning module include ultraviolet light photo converting unit, high pressure is driven
Moving cell, I/U converting units, Pulse Amplifier Unit and pulse discriminator unit, memory module include DSP processing modules, power supply mould
Block, interface module, data management control module, SD storage cards, CAN, upper computer detection module, display screen, reset
Module and button;Wherein,
Ultrasonic sensor modules, amplifying circuit, filter circuit, A/D change-over circuits and processor are linked in sequence successively, hyperfrequency
Sensor assembly, ultra-high frequency signal conditioning module and processor are linked in sequence successively, ultraviolet light photo converting unit, high drive list
Member, I/U converting units, Pulse Amplifier Unit, pulse discriminator unit and processor are linked in sequence successively, processor and DSP processing
Module connect, power module, interface module, display screen, reseting module, data management control module, CAN respectively with
DSP processing modules are connected, and data management control module is connected with SD storage cards, and CAN connects with ipc monitor module
Connect.
Supersonic sensing module is used to detect ultrasonic signal caused by shelf depreciation, and ultrasonic signal conditioning module is used for
Ultrasonic signal is converted into micro voltage signal, micro voltage signal is amplified, the voltage signal after amplification is filtered
Processing, then it is converted into data signal through A/D change-over circuits and exports to processor to be handled;
Uhf sensor module is used to detect ultra-high frequency signal caused by shelf depreciation, and ultra-high frequency signal conditioning module is used for will
Ultra-high frequency signal is converted into micro voltage signal, and micro voltage signal is carried out into low noise amplification, the signal after amplification is filtered
Processing, detection processing is then carried out, the signal progress analog-to-digital conversion after detection is obtained into data signal exports to processor progress
Processing;Ultraviolet light photo converting unit is nursed one's health ultraviolet pulse signal is gathered:Ultraviolet is changed into photoelectric current, high pressure is driven
Moving cell uses 325V operating voltages, and pulse current is converted into pulse voltage and exported by I/U converting units, Pulse Amplifier Unit pair
Local discharge signal is amplified processing, and pulse discriminator unit counts to useful pulse signal;Signal after conditioning passes to
Processor;
The signal received is handled processor and feature extraction, and then information is merged, and finally obtains electric discharge letter
Breath, and the electric signal that the data of analysis are transformed into DSP can be identified feeds back to DSP, DSP is sent out after carrying out calculation process to data
Display screen is sent to, shows running status, while discharge parameter information is sent to by SD storage cards by data management control module,
SD storage cards 12 are preserved and stored to data;Discharge information is transmitted into ipc monitor module by CAN
Preserved, to facilitate user to check and handle data.Meanwhile failure is examined by ipc monitor module
It is disconnected, differentiate whether the information received belongs to discharge signal, if belonging to discharge signal, then system can automatic start alarm work(
Can, and the work about electric power personnel for providing correlation repair to high-tension switch cabinet.
CAN includes first resistor to the 5th resistance, the first electric capacity to the 3rd electric capacity, controller, the first optocoupler
Clutch, the second photo-coupler and transceiver;Wherein, the input of controller and second resistance, the output end of the second photo-coupler
Connecting respectively, the other end of second resistance is connected respectively with the power end of power supply, one end of the first electric capacity, the second photo-coupler,
The other end ground connection of first electric capacity, the earth terminal ground connection of the second photo-coupler, the input of the second photo-coupler and transceiver
Data sending terminal connects, and the output end of controller and one end of first resistor connect, the other end of first resistor and the first optocoupler
The input connection of clutch, the earth terminal ground connection of the first photo-coupler, the voltage end of the first photo-coupler and the one of 3rd resistor
End, one end of the second electric capacity, power supply connect respectively, the other end ground connection of the second electric capacity, the other end of 3rd resistor and the first light
The output end of coupler, the receiving terminal of transceiver are connected respectively, and the clear terminal of transceiver is connected with one end of the 4th resistance, and the 4th
The other end of resistance and the earth terminal of transceiver, connect respectively, one end of the power end of transceiver and the 3rd electric capacity, power supply point
Do not connect, the other end of the 3rd electric capacity and the high level output end of transceiver, one end of the 5th resistance connect respectively, the 5th resistance
The other end and transceiver low level output end connect.
Controller is single-chip microcomputer, and the model 89C51 of single-chip microcomputer, power module is+5V power supplys.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deductions can also be made or substituted, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of storage system of high-tension switch cabinet shelf depreciation status data, it is characterised in that including ZigBee sensor sections
Point and memory module, ZigBee sensor nodes include ultrasonic sensor modules, ultrasonic signal conditioning module, superelevation and kept pouring in
Sensor module, ultra-high frequency signal conditioning module, ultraviolet sensing and conditioning module and processor, ultrasonic signal conditioning unit bag
Amplifying circuit, filter circuit and A/D change-over circuits are included, ultraviolet sensing and conditioning module include ultraviolet light photo converting unit, height
Driver element, I/U converting units, Pulse Amplifier Unit and pulse discriminator unit are pressed, memory module includes DSP processing modules, electricity
Source module, interface module, data management control module, SD storage cards, CAN, upper computer detection module, display screen,
Reseting module and button;Wherein,
Ultrasonic sensor modules, amplifying circuit, filter circuit, A/D change-over circuits and processor are linked in sequence successively, hyperfrequency
Sensor assembly, ultra-high frequency signal conditioning module and processor are linked in sequence successively, ultraviolet light photo converting unit, high drive list
Member, I/U converting units, Pulse Amplifier Unit, pulse discriminator unit and processor are linked in sequence successively, processor and DSP processing
Module connect, power module, interface module, display screen, reseting module, data management control module, CAN respectively with
DSP processing modules are connected, and data management control module is connected with SD storage cards, and CAN connects with ipc monitor module
Connect.
A kind of 2. storage system of high-tension switch cabinet shelf depreciation status data according to claim 1, it is characterised in that
CAN includes first resistor to the 5th resistance, the first electric capacity to the 3rd electric capacity, controller, the first photo-coupler, second
Photo-coupler and transceiver;Wherein, the input of controller is connected respectively with second resistance, the output end of the second photo-coupler,
The other end of second resistance is connected respectively with the power end of power supply, one end of the first electric capacity, the second photo-coupler, the first electric capacity
The other end is grounded, the earth terminal ground connection of the second photo-coupler, the input of the second photo-coupler and the data sending terminal of transceiver
Connection, the output end of controller and one end of first resistor connect, the input of the other end of first resistor and the first photo-coupler
End connection, the earth terminal ground connection of the first photo-coupler, the voltage end of the first photo-coupler and one end of 3rd resistor, the second electric capacity
One end, power supply connect respectively, the other end of the second electric capacity ground connection, the output of the other end of 3rd resistor and the first photo-coupler
End, the receiving terminal of transceiver are connected respectively, and the clear terminal of transceiver is connected with one end of the 4th resistance, the other end of the 4th resistance
Earth terminal with transceiver, be connected respectively, one end of the power end of transceiver and the 3rd electric capacity, power supply are connected respectively, the 3rd
The other end of electric capacity and the high level output end of transceiver, one end of the 5th resistance connect respectively, the other end of the 5th resistance with
The low level output end connection of transceiver.
A kind of 3. storage system of high-tension switch cabinet shelf depreciation status data according to claim 2, it is characterised in that
Controller is single-chip microcomputer.
A kind of 4. storage system of high-tension switch cabinet shelf depreciation status data according to claim 3, it is characterised in that
The model 89C51 of single-chip microcomputer.
A kind of 5. storage system of high-tension switch cabinet shelf depreciation status data according to claim 1, it is characterised in that
Power module is+5V power supplys.
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CN201711027190.6A CN107728524A (en) | 2017-10-27 | 2017-10-27 | A kind of storage system of high-tension switch cabinet shelf depreciation status data |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109406965A (en) * | 2018-11-16 | 2019-03-01 | 国网江苏省电力有限公司盐城供电分公司 | A kind of partial discharge detecting system and its detection method based on sound signal collecting |
CN110161386A (en) * | 2019-05-06 | 2019-08-23 | 贵州电网有限责任公司 | A kind of portable high-pressure cable connector local discharge detection device and method |
CN110888052A (en) * | 2019-12-01 | 2020-03-17 | 国网辽宁省电力有限公司电力科学研究院 | High-voltage switch cabinet partial discharge on-line monitoring system and method based on ultrahigh frequency technology |
CN112177116A (en) * | 2020-09-09 | 2021-01-05 | 杭州洁驰数控科技有限公司 | Ultrasonic intelligent induction flushing system based on intelligent public toilet and induction method thereof |
CN113567814A (en) * | 2021-06-21 | 2021-10-29 | 国网天津市电力公司电力科学研究院 | Multi-channel synchronous acquisition system for discharge detection |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103454564A (en) * | 2013-08-22 | 2013-12-18 | 江苏科技大学 | Partial discharge detecting system and method for high voltage switch cabinet |
CN203520091U (en) * | 2013-11-04 | 2014-04-02 | 成都爪媒科技有限公司 | Can communication interface circuit |
CN105510782A (en) * | 2015-12-30 | 2016-04-20 | 华北电力大学 | Switch cabinet partial discharge intelligent online monitoring system based on ultraviolet method and ultrahigh-frequency method |
CN205353280U (en) * | 2015-12-28 | 2016-06-29 | 华北电力大学 | A sensor for measuring cubical switchboard partial discharge |
CN206114842U (en) * | 2016-10-31 | 2017-04-19 | 重庆同远能源技术有限公司 | Cubical switchboard local discharge signal processing device device |
CN207408775U (en) * | 2017-10-27 | 2018-05-25 | 无锡七百二十度科技有限公司 | A kind of storage system of high-tension switch cabinet shelf depreciation status data |
-
2017
- 2017-10-27 CN CN201711027190.6A patent/CN107728524A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103454564A (en) * | 2013-08-22 | 2013-12-18 | 江苏科技大学 | Partial discharge detecting system and method for high voltage switch cabinet |
CN203520091U (en) * | 2013-11-04 | 2014-04-02 | 成都爪媒科技有限公司 | Can communication interface circuit |
CN205353280U (en) * | 2015-12-28 | 2016-06-29 | 华北电力大学 | A sensor for measuring cubical switchboard partial discharge |
CN105510782A (en) * | 2015-12-30 | 2016-04-20 | 华北电力大学 | Switch cabinet partial discharge intelligent online monitoring system based on ultraviolet method and ultrahigh-frequency method |
CN206114842U (en) * | 2016-10-31 | 2017-04-19 | 重庆同远能源技术有限公司 | Cubical switchboard local discharge signal processing device device |
CN207408775U (en) * | 2017-10-27 | 2018-05-25 | 无锡七百二十度科技有限公司 | A kind of storage system of high-tension switch cabinet shelf depreciation status data |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109406965A (en) * | 2018-11-16 | 2019-03-01 | 国网江苏省电力有限公司盐城供电分公司 | A kind of partial discharge detecting system and its detection method based on sound signal collecting |
CN110161386A (en) * | 2019-05-06 | 2019-08-23 | 贵州电网有限责任公司 | A kind of portable high-pressure cable connector local discharge detection device and method |
CN110888052A (en) * | 2019-12-01 | 2020-03-17 | 国网辽宁省电力有限公司电力科学研究院 | High-voltage switch cabinet partial discharge on-line monitoring system and method based on ultrahigh frequency technology |
CN112177116A (en) * | 2020-09-09 | 2021-01-05 | 杭州洁驰数控科技有限公司 | Ultrasonic intelligent induction flushing system based on intelligent public toilet and induction method thereof |
CN113567814A (en) * | 2021-06-21 | 2021-10-29 | 国网天津市电力公司电力科学研究院 | Multi-channel synchronous acquisition system for discharge detection |
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Application publication date: 20180223 |