CN104049207A - Maintenance method for jamming condition of turning on and turning off of disconnecting switch - Google Patents
Maintenance method for jamming condition of turning on and turning off of disconnecting switch Download PDFInfo
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- CN104049207A CN104049207A CN201410296091.8A CN201410296091A CN104049207A CN 104049207 A CN104049207 A CN 104049207A CN 201410296091 A CN201410296091 A CN 201410296091A CN 104049207 A CN104049207 A CN 104049207A
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Abstract
The invention relates to a maintenance method for the jamming condition of turning on and turning off of a disconnecting switch. The maintenance method is characterized by comprising the steps: 1, a current and voltage transformer collects corresponding electric signals from the connection terminal of a motor power source in a disconnecting switch mechanism case; 2, the current and voltage signals collected in the step 1 are transmitted to a mutual inductance conditioning circuit and finally transmitted to an ARM chip, an ARM firstly carries out analog-digital conversion on current and voltage values and then processes digital signals to complete analog-digital conversion and digital adaptive filtering of the current and voltage signals, and obtained data are stored in a USB mobile storage device; 3, the data stored in a USB flash disk are copied to a computer with Labview and analyzed. According to the maintenance method, the jamming condition of a disconnecting link can be effectively analyzed, and the defect portion or damage portion of the disconnecting link can be located through analysis.
Description
Technical field
The present invention relates to a kind of disconnector deciliter bite situation repair based on condition of component method, be applied to electric system.
Background technology
The key of implementing repair based on condition of component has two: the one, correctly grasp the state of operational outfit, and the 2nd, work out scientific and reasonable monitoring index.For electric substation's outdoor disconnector, affect porcelain vase filth, current carrying part heating, running part bite, the porcelain vase internal injury four large factors such as crack that mainly contain of its healthy operation.
For disconnecting link running part bite problem, there is no at present effective monitoring means, the methods such as the quality of main dependence raising product and rustless property, reinforcement installation and maintenance craft, use brand-name grease solve.
For disconnecting link repair based on condition of component, still rest on infrared measurement of temperature, macroscopic stage of mode of operation at present, this situation can not finely be held for disconnecting link state, especially inaccurate to disconnecting link rejected region or hurt spots localization.Therefore for the problems referred to above, are, objects that the present invention studies.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of disconnector deciliter bite situation repair based on condition of component method, contribute to solve existing insulation and shave the uneasy congruent problem of using.
Technical program of the present invention lies in:
A disconnector deciliter bite situation repair based on condition of component method, is characterized in that, carries out as follows:
1) from isolating switch mechanism case the connection terminal of motor power by electric current and voltage transformer (VT) collection electric signal accordingly;
2) by the current and voltage signals transmission mutual inductance modulate circuit collecting in the first step, finally dock to ARM chip, first ARM carries out analog to digital conversion to current/voltage value, and then to this digital signal processing, complete the analog to digital conversion of this current and voltage signals and digital adaptation filtering, and the data of obtaining are stored in to USB flash memory device;
3) USB flash disk that has data is copied in the computing machine that Labview is housed, analyze.
The file layout of wherein, storing on USB flash memory device is csv.
The invention has the advantages that: the present invention can effectively analyze disconnecting link bite situation, can also pass through analyzing and positioning disconnecting link rejected region or hurt position.
Accompanying drawing explanation
Fig. 1 is the hardware structure diagram of the embodiment of the present invention.
Fig. 2 is the FAT32 file system structure schematic diagram of the embodiment of the present invention.
Fig. 3 is the one-piece construction figure of the file system of the embodiment of the present invention.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
Referring to figs. 1 to Fig. 3, the present invention relates to a kind of disconnector deciliter bite situation repair based on condition of component method, carry out as follows:
1) from isolating switch mechanism case the connection terminal of motor power by electric current and voltage transformer (VT) collection electric signal accordingly;
2) by the current and voltage signals transmission mutual inductance modulate circuit collecting in the first step, finally dock to ARM chip, first ARM carries out analog to digital conversion to current/voltage value, and then to this digital signal processing, complete the analog to digital conversion of this current and voltage signals and digital adaptation filtering, and the data of obtaining are stored in to USB flash memory device;
3) USB flash disk that has data is copied in the computing machine that Labview is housed, analyze.
The file layout of storing on USB flash memory device is csv.
In implementation process,
1, hardware configuration
1. electric current and voltage transformer (VT) can gather by the connection terminal of motor power from isolating switch mechanism case, easy for installation, little to the transformation amount of mechanism case, and can not affect the normal running of mechanism case.
2. by the current and voltage signals transmission mutual inductance modulate circuit collecting in the first step, finally dock to ARM chip, first ARM carries out analog to digital conversion to current/voltage value, and then to this digital signal processing, complete the analog to digital conversion of this current and voltage signals and digital adaptation filtering, and the data of obtaining are stored in to USB flash memory device (USB flash disk) according to specific form.
3. the USB flash disk that has data is copied in the computing machine that Labview is housed, analyze.Labview is as a kind of visual programming software, and compiling module program is to wave form analysis and demonstration very easily.
2, software system design:
1. system basic software framework
Main control chip is by Arm Industry Control chip, master control operating system adopts aviation-grade high reliability, security real time operating system UCOS, can provide can reduce, preemptive type, can deprive type real-time multi-task kernel in real time, the special-purpose USB driver module of integrated UCOS, can support that automatic USB memory device detects automatically, data write automatically, automatically updating data; Integrated FAT32 file system, can be applicable to industry, electric power environmental by optimizing with the file system of cutting, guarantees data integrity.
2. system basic framework
By the mode of ARM main control chip circumscribed USB interface chip, complete the reading and writing data function of USB memory device, when USB interface detects memory device insertion, can automatically on memory device, construct FAT32 file system, and upgrade data file to corresponding catalogue.
3. on USB flash disk, build FAT32 file system
FAT32 file system consists of three parts, and the structure of this three part in Logical Disk as shown in Figure 2.
DBR(DOS Boot Record) comprise BIOS parameter block and DOS boot.In BIOS parameter block, comprised every bunch of sector number, reserve sector number, implicit sector number, every FAT sector number, the important informations such as reference position in root directory FDT DATA district.DATA district is from USB flash disk root directory FDT(FAT Directory Table), under root directory, user can create different sub-directories or file again, root directory and each sub-directory have the FDT of oneself, and FDT has defined the starting cluster number that filename, file size and file are deposited.The tree-like file index structure that FDT by each sub-directory and file forms completes the location to file.The minimum memory unit of physical equipment is Sector(sector), storage cell minimum in DATA district is Cluster(bunch), on the flash of USB flash disk, generally by 8 Section, form a Cluster.Because a file often takies a plurality of bunches in DATA district, FAT32 file system adopts the shared bunch chain of file of mode index of bunch chain.FAT(File Allocate Table) recorded which bunch quilt of DATA district and used, when follow-up bunch bunch number of prevariety.
4. the realization of FAT file system and automatically updating data
FAT32 file system derives from Open Source Code, and the groundwork of transplanting is to replace message communication function.After these work complete, will the various operations of File be packaged into an OSFile task, receive the file operation requirement that application program is sent.The one-piece construction figure of file system as shown in Figure 3.
The whole file system of USB flash disk is abstract at the protocol layer of host software is UFI(USB Floppy Interface) equipment, by the command block (Command Block) that contains UFI instruction, communicate by letter with USB flash disk.The function that this layer completes has the operation in file system is translated as to UFI instruction, and UFI instruction is packaged into command block, and corresponding contrary operation.Transmission process layer, for the treatment of command block, comprises that main frame transmission command piece receives command block treatment state to the data transmission between large capacity kind equipment, main frame and large capacity equipment and main frame.Large capacity kind equipment host-host protocol is divided into Bulk-Only agreement and CBI-Only agreement.This layer processed the unified interface of function for layer order provides command block, makes layer order not need to comprehend the host-host protocol of current large capacity kind equipment.Transport layer receives by the packaged command block of protocol layer, according to the information of registered Mass Storage Class equipment, adopts single (Bulk Only) transmission mode in batches to transfer out from batch exit point (Bulk Data Out Endpoint).Similar, also can receive data from batch input end points (Bulk Data In Endpoint), be upwards delivered to protocol layer and resolve.
After being connected in USB interface, USB flash disk first by a Root Hub Class of interface driver registration, then registers the equipment of a Mass Storage Class for USB flash disk.Then,, in order to detect the connection of USB flash disk, start the task of the Host_Serve of inquiry current state.After interface chip is connected with U dish, interface chip is by interrupt notification real time operating system, and real time operating system is opened corresponding subtask.The change of state in Host_Serve task, detected, start the communication of usb protocol.So far, USB flash disk (USB Mass Storage equipment) has been registered.Ever after, FAT32 file system the operation that will carry out USB flash disk all pass through Bulk-Only and be transmitted.
5. software systems fault-tolerant processing
Impact due to actual field environment and physical factor, in real data, can exist and must disturb and electromagnetic noise signal, need to carry out digitized filtered to actual image data, can realize real-time high-order active power filtering, adaptive filtering is got rid of the high-frequency interferencing signals such as on-the-spot electromagnetism, advanced hardware frame and Software for Design, can store long off-line data, USB memory device detected, automatic updating data is to equipment, FAT32 file system can guarantee the safe and reliable memory device that is saved in of data, can preserve into particular file format according to agreement, facilitate third party software analysis, such as data layouts such as cvs, can be at Excel, third party's analysis software such as Labview are analyzed.。
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (2)
1. a disconnector deciliter bite situation repair based on condition of component method, is characterized in that, carries out as follows:
1) from isolating switch mechanism case the connection terminal of motor power by electric current and voltage transformer (VT) collection electric signal accordingly;
2) by the current and voltage signals transmission mutual inductance modulate circuit collecting in the first step, finally dock to ARM chip, first ARM carries out analog to digital conversion to current/voltage value, and then to this digital signal processing, complete the analog to digital conversion of this current and voltage signals and digital adaptation filtering, and the data of obtaining are stored in to USB flash memory device;
3) USB flash disk that has data is copied in the computing machine that Labview is housed, analyze.
2. a kind of disconnector according to claim 1 deciliter bite situation repair based on condition of component method, is characterized in that: the file layout of storing on USB flash memory device is csv.
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| CN201410296091.8A CN104049207B (en) | 2014-06-27 | 2014-06-27 | Maintenance method for jamming condition of turning on and turning off of disconnecting switch |
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| CN201410296091.8A CN104049207B (en) | 2014-06-27 | 2014-06-27 | Maintenance method for jamming condition of turning on and turning off of disconnecting switch |
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| CN104049207B CN104049207B (en) | 2017-01-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107561376A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | A kind of method and device of power supply noise measurement |
| CN109541453A (en) * | 2018-11-30 | 2019-03-29 | 南京谷贝电气科技有限公司 | A kind of mechanical characteristic of high-voltage circuit breaker on-line monitoring newer system |
| CN111157841A (en) * | 2019-12-25 | 2020-05-15 | 国网浙江省电力有限公司台州供电公司 | Fault quick positioning device for secondary circuit of electric operation type isolating switch |
| CN116819158A (en) * | 2023-05-19 | 2023-09-29 | 国网安徽省电力有限公司电力科学研究院 | Intelligent monitoring system and method for current of isolating switch motor |
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| CN111157841A (en) * | 2019-12-25 | 2020-05-15 | 国网浙江省电力有限公司台州供电公司 | Fault quick positioning device for secondary circuit of electric operation type isolating switch |
| CN116819158A (en) * | 2023-05-19 | 2023-09-29 | 国网安徽省电力有限公司电力科学研究院 | Intelligent monitoring system and method for current of isolating switch motor |
| CN116819158B (en) * | 2023-05-19 | 2024-02-09 | 国网安徽省电力有限公司电力科学研究院 | Intelligent monitoring system and method for current of isolating switch motor |
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| CN104049207B (en) | 2017-01-18 |
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