CN207408775U - 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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- CN207408775U CN207408775U CN201721404481.8U CN201721404481U CN207408775U CN 207408775 U CN207408775 U CN 207408775U CN 201721404481 U CN201721404481 U CN 201721404481U CN 207408775 U CN207408775 U CN 207408775U
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Abstract
The utility model discloses a kind of storage systems 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 light sensing and conditioning module and processor,Ultrasonic signal conditioning unit includes amplifying circuit,Filter circuit and A/D conversion circuits,Ultraviolet light 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 communication module,Upper computer detection module,Display screen,Reseting module and button；The utility model 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 utility model relates to a computer storage system, especially a storage system of high tension switchgear partial discharge state data.
Background
With the development of national economy and the support of relevant industrial policies on the power industry, the power industry becomes an important support for guaranteeing the national economy. With the development of the power industry, the requirements on the stability and reliability of the operation of the power system are higher and higher, and the defects of the common power grid are gradually exposed. Therefore, in the case of traditional grid operation problems, smart grids are coming into view of people and are beginning to gradually become the dominant force for modern urban grid delivery. The smart grid is derived on the basis of fusing modern advanced technologies, such as an intelligent decision technology, an integration technology, a modern measurement and control technology and the like. The intelligent power grid is used for transmitting the electric power, so that the efficiency and the reliability of power transmission are greatly improved, the requirement of modern society on electric quantity is met, the waste of power resources is avoided, and the pollution to the environment is reduced.
The intelligent high-voltage switch cabinet is used as important equipment for operation of the intelligent power grid, and plays an important role in ensuring safe operation of the intelligent power grid. In smart grids, insulation faults are generally considered to be a very important cause of failures in smart high-voltage switchgear and other equipment. And the partial discharge of the intelligent high-voltage switch cabinet is used as an important index for evaluating the insulation performance of the switch cabinet, and once the partial discharge reaches a certain degree, the partial discharge brings great harm to the operation of the whole power grid. Therefore, the monitoring of the local discharge problem of the high-voltage switch cabinet is enhanced, the insulation fault existing in the equipment is found in time, and the method has great value and significance for preventing accidents, improving the operation reliability of a power grid and the like.
The high-voltage switch cabinet is widely applied to each link of a power grid, the safe operation of the high-voltage switch cabinet is directly related to the safety of the whole power grid and the power supply quality of a power system to users, and the high-voltage switch cabinet is one of the most important electrical equipment in the power system. The fault detection in the traditional high-voltage switch cabinet must be carried out under the power failure state or in a manual inspection mode, the power failure maintenance not only causes the reduction of the equipment availability and the user power supply reliability, but also can be carried out periodically, and at periodic intervals, the equipment is in a state of failure repair and out of control, and once a fault occurs, the fault cannot be processed in time. In addition, the switch cabinet is used as a closed device, if the device in the cabinet is abnormal, the device is difficult to be found even if an operator regularly visits, and the requirement for timely mastering the defects of the device is difficult to achieve. Therefore, it is very necessary to adopt a real-time online technology to monitor the high-voltage switch cabinet.
The high-voltage switch cabinet has numerous internal devices, the arrangement is more and more compact, the insulation margin is smaller, and particularly in the south where the air is more sultry and moist in summer, creepage is caused on the surfaces of the devices. During long-term operation, the insulation slowly ages or degrades through electrical, thermal, chemical action, resulting in a decrease in electrical insulation strength and even failure. Accident statistics show that many insulation failures in recent years are mainly caused by partial discharges. The latent defect of the internal metal component of the switch cabinet in the manufacturing process or the installation and operation easily causes partial discharge under the action of long-term high voltage, high temperature, humidity, vibration and the like. The detection and evaluation of the partial discharge are used as important means for monitoring the insulation condition, the insulation condition of the electrical equipment can be dynamically reflected, early warning of the insulation latent fault of the equipment is realized, and the occurrence of catastrophic accidents is effectively avoided by analyzing and processing the detection result.
A large amount of historical action data are stored in the high-voltage switch cabinet monitoring system to form a perfect database, and original data are provided for state evaluation. At present, a high-voltage switch cabinet monitoring system mostly adopts nonvolatile FLASH as a storage medium, data waveforms of recent actions are stored according to a first-in first-out recording principle, and erasing is carried out after a recorded event exceeds the range, so that large-capacity data are not easy to store.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art not enough and provide a storage system of high tension switchgear partial discharge state data, the utility model discloses the realization is to the comprehensive, real-time data storage of cubical switchboard state, and data processing ability is strong, storage capacity is big, the reliability is high and stability is good.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
according to the utility model provides a storage system of high tension switchgear partial discharge state data, including zigBee sensor node and storage module, zigBee sensor node includes the ultrasonic sensor module, ultrasonic signal conditioning module, the hyperfrequency sensor module, hyperfrequency signal conditioning module, ultraviolet ray sensing and conditioning module and treater, ultrasonic signal conditioning unit includes amplifier circuit, filter circuit and AD converting circuit, ultraviolet ray sensing and conditioning module include ultraviolet photoelectric conversion unit, high voltage drive unit, I/U converting unit, pulse amplification unit and pulse discrimination unit, storage module includes DSP processing module, power module, interface module, data management control module, SD memory card, CAN communication module, host computer detection module, a display screen, reset module and button; wherein,
the device comprises an ultrasonic sensor module, an amplifying circuit, a filter circuit, an A/D conversion circuit and a processor which are sequentially connected, wherein the ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module and the processor are sequentially connected, an ultraviolet photoelectric conversion unit, a high-voltage driving unit, an I/U conversion unit, a pulse amplification unit, a pulse discrimination unit and the processor are sequentially connected, the processor is connected with a DSP processing module, a power supply module, an interface module, a display screen, a reset module, a data management control module and a CAN communication module are respectively connected with the DSP processing module, the data management control module is connected with an SD storage card, and the CAN communication module is connected with an upper computer monitoring module.
As a further optimization scheme of the storage system for the partial discharge state data of the high voltage switch cabinet, the CAN communication module includes a first resistor to a fifth resistor, a first capacitor to a third capacitor, a controller, a first optical coupler, a second optical coupler and a transceiver; wherein, the input end of the controller is respectively connected with the output ends of the second resistor and the second optical coupler, the other end of the second resistor is respectively connected with the power supply, one end of the first capacitor and the power supply end of the second optical coupler, the other end of the first capacitor is grounded, the ground terminal of the second optical coupler is grounded, the input end of the second optical coupler is connected with the data sending end of the transceiver, the output end of the controller is connected with one end of the first resistor, the other end of the first resistor is connected with the input end of the first optical coupler, the ground terminal of the first optical coupler is grounded, the voltage end of the first optical coupler is respectively connected with one end of the third resistor, one end of the second capacitor and the power supply, the other end of the second capacitor is grounded, the other end of the third resistor is respectively connected with the output end of the first optical coupler and the receiving end of the transceiver, the zero clearing end of the transceiver is connected with one, the other end of the fourth resistor is connected with the grounding end and the ground of the transceiver respectively, the power supply end of the transceiver is connected with one end of the third capacitor and the power supply respectively, the other end of the third capacitor is connected with the high-level output end of the transceiver and one end of the fifth resistor respectively, and the other end of the fifth resistor is connected with the low-level output end of the transceiver.
As a further optimization scheme of storage system of high tension switchgear partial discharge state data, the controller is the singlechip.
As a further optimization scheme of storage system of high tension switchgear partial discharge state data, the model of singlechip is 89C 51.
As a further optimization scheme of storage system of high tension switchgear partial discharge state data, power module is +5V power.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
(1) the utility model discloses the realization is to the comprehensive, real-time data storage of cubical switchboard state, and data processing ability is strong, storage capacity is big, the reliability is high and stability is good.
(2) The strong data processing capacity of the DSP is utilized to collect the information of the high-voltage switch, and the large-capacity storage equipment is utilized to store the data, so that the system can realize the long-term storage of the data.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
as shown in fig. 1, a storage system for partial discharge state data of a high-voltage switch cabinet comprises a ZigBee sensor node and a storage module, wherein the ZigBee sensor node comprises an ultrasonic sensor module, an ultrasonic signal conditioning module, an ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module, an ultraviolet sensing and conditioning module and a processor, the ultrasonic signal conditioning unit comprises an amplifying circuit, a filter circuit and an a/D conversion circuit, the ultraviolet sensing and conditioning module comprises an ultraviolet photoelectric conversion unit, a high-voltage driving unit, an I/U conversion unit, a pulse amplification unit and a pulse discrimination unit, and the storage module comprises a DSP processing module, a power supply module, an interface module, a data management control module, an SD memory card, a CAN communication module, an upper computer detection module, a display screen, a reset module and a button; wherein,
the device comprises an ultrasonic sensor module, an amplifying circuit, a filter circuit, an A/D conversion circuit and a processor which are sequentially connected, wherein the ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module and the processor are sequentially connected, an ultraviolet photoelectric conversion unit, a high-voltage driving unit, an I/U conversion unit, a pulse amplification unit, a pulse discrimination unit and the processor are sequentially connected, the processor is connected with a DSP processing module, a power supply module, an interface module, a display screen, a reset module, a data management control module and a CAN communication module are respectively connected with the DSP processing module, the data management control module is connected with an SD storage card, and the CAN communication module is connected with an upper computer monitoring module.
The ultrasonic sensing module is used for detecting ultrasonic signals generated by partial discharge, the ultrasonic signal conditioning module is used for converting the ultrasonic signals into micro-voltage signals, amplifying the micro-voltage signals, filtering the amplified voltage signals, and converting the amplified voltage signals into digital signals through the A/D conversion circuit to be output to the processor for processing;
the ultrahigh frequency sensor module is used for detecting ultrahigh frequency signals generated by partial discharge, the ultrahigh frequency signal conditioning module is used for converting the ultrahigh frequency signals into micro-voltage signals, the micro-voltage signals are subjected to low-noise amplification, the amplified signals are subjected to filtering processing and then to detection processing, and the detected signals are subjected to analog-to-digital conversion to obtain digital signals which are output to the processor for processing; the ultraviolet photoelectric conversion unit conditions the collected ultraviolet pulse signals: converting ultraviolet light into photocurrent, adopting 325V working voltage by a high-voltage driving unit, converting pulse current into pulse voltage by an I/U conversion unit for output, amplifying partial discharge signals by a pulse amplification unit, and counting useful pulse signals by a pulse discrimination unit; transmitting the conditioned signal to a processor;
the processor processes and extracts the characteristics of the received signals, then fuses the information to finally obtain discharge information, converts the analyzed data into electric signals which can be identified by the DSP and feeds the electric signals back to the DSP, the DSP performs operation processing on the data and then sends the data to the display screen to display the running state, and meanwhile, the data management control module sends the discharge parameter information to the SD memory card, and the SD memory card 12 stores and stores the data; the discharging information is transmitted to the upper computer monitoring module through the CAN communication module for storage, so that a user CAN conveniently check and process the data. Meanwhile, the upper computer monitoring module diagnoses the fault, judges whether the received information belongs to the discharge signal, and if the received information belongs to the discharge signal, the system can automatically start an alarm function and provide related electric power working personnel to maintain the high-voltage switch cabinet.
The CAN communication module comprises first to fifth resistors, first to third capacitors, a controller, a first optical coupler, a second optical coupler and a transceiver; wherein, the input end of the controller is respectively connected with the output ends of the second resistor and the second optical coupler, the other end of the second resistor is respectively connected with the power supply, one end of the first capacitor and the power supply end of the second optical coupler, the other end of the first capacitor is grounded, the ground terminal of the second optical coupler is grounded, the input end of the second optical coupler is connected with the data sending end of the transceiver, the output end of the controller is connected with one end of the first resistor, the other end of the first resistor is connected with the input end of the first optical coupler, the ground terminal of the first optical coupler is grounded, the voltage end of the first optical coupler is respectively connected with one end of the third resistor, one end of the second capacitor and the power supply, the other end of the second capacitor is grounded, the other end of the third resistor is respectively connected with the output end of the first optical coupler and the receiving end of the transceiver, the zero clearing end of the transceiver is connected with one, the other end of the fourth resistor is connected with the grounding end and the ground of the transceiver respectively, the power supply end of the transceiver is connected with one end of the third capacitor and the power supply respectively, the other end of the third capacitor is connected with the high-level output end of the transceiver and one end of the fifth resistor respectively, and the other end of the fifth resistor is connected with the low-level output end of the transceiver.
The controller is a single chip microcomputer, the model of the single chip microcomputer is 89C51, and the power supply module is a +5V power supply.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replace, all should regard as belonging to the utility model discloses a protection scope.
Claims (5)
1. A storage system for partial discharge state data of a high-voltage switch cabinet is characterized by comprising a ZigBee sensor node and a storage module, wherein the ZigBee sensor node comprises an ultrasonic sensor module, an ultrasonic signal conditioning module, an ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module, an ultraviolet sensing and conditioning module and a processor, the ultrasonic signal conditioning unit comprises an amplifying circuit, a filter circuit and an A/D (analog/digital) conversion circuit, the ultraviolet sensing and conditioning module comprises an ultraviolet photoelectric conversion unit, a high-voltage driving unit, an I/U (input/output) conversion unit, a pulse amplifying unit and a pulse discriminating unit, and the storage module comprises a DSP (digital signal processor) processing module, a power supply module, an interface module, a data management control module, a SD (secure digital) memory card, a CAN (controller area network) communication module, an upper computer detection module, a; wherein,
the device comprises an ultrasonic sensor module, an amplifying circuit, a filter circuit, an A/D conversion circuit and a processor which are sequentially connected, wherein the ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module and the processor are sequentially connected, an ultraviolet photoelectric conversion unit, a high-voltage driving unit, an I/U conversion unit, a pulse amplification unit, a pulse discrimination unit and the processor are sequentially connected, the processor is connected with a DSP processing module, a power supply module, an interface module, a display screen, a reset module, a data management control module and a CAN communication module are respectively connected with the DSP processing module, the data management control module is connected with an SD storage card, and the CAN communication module is connected with an upper computer monitoring module.
2. The storage system of the partial discharge state data of the high-voltage switch cabinet according to claim 1, wherein the CAN communication module comprises a first resistor to a fifth resistor, a first capacitor to a third capacitor, a controller, a first optical coupler, a second optical coupler and a transceiver; wherein, the input end of the controller is respectively connected with the output ends of the second resistor and the second optical coupler, the other end of the second resistor is respectively connected with the power supply, one end of the first capacitor and the power supply end of the second optical coupler, the other end of the first capacitor is grounded, the ground terminal of the second optical coupler is grounded, the input end of the second optical coupler is connected with the data sending end of the transceiver, the output end of the controller is connected with one end of the first resistor, the other end of the first resistor is connected with the input end of the first optical coupler, the ground terminal of the first optical coupler is grounded, the voltage end of the first optical coupler is respectively connected with one end of the third resistor, one end of the second capacitor and the power supply, the other end of the second capacitor is grounded, the other end of the third resistor is respectively connected with the output end of the first optical coupler and the receiving end of the transceiver, the zero clearing end of the transceiver is connected with one, the other end of the fourth resistor is connected with the grounding end and the ground of the transceiver respectively, the power supply end of the transceiver is connected with one end of the third capacitor and the power supply respectively, the other end of the third capacitor is connected with the high-level output end of the transceiver and one end of the fifth resistor respectively, and the other end of the fifth resistor is connected with the low-level output end of the transceiver.
3. The system for storing the partial discharge state data of the high-voltage switch cabinet as claimed in claim 2, wherein the controller is a single chip microcomputer.
4. The storage system of the partial discharge state data of the high-voltage switch cabinet as claimed in claim 3, wherein the model of the single chip microcomputer is 89C 51.
5. The system for storing the partial discharge state data of the high-voltage switch cabinet as claimed in claim 1, wherein the power supply module is a +5V power supply.
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| CN201721404481.8U CN207408775U (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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| CN201721404481.8U CN207408775U (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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728524A (en) * | 2017-10-27 | 2018-02-23 | 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 |
| 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 |
| CN113534008A (en) * | 2021-07-29 | 2021-10-22 | 陈曦 | High tension cable earth leakage current monitoring devices in looped netowrk cabinet |
-
2017
- 2017-10-27 CN CN201721404481.8U patent/CN207408775U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728524A (en) * | 2017-10-27 | 2018-02-23 | 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 |
| 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 |
| CN113534008A (en) * | 2021-07-29 | 2021-10-22 | 陈曦 | High tension cable earth leakage current monitoring devices in looped netowrk cabinet |
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