CN103399230A - Power transformer winding online monitoring system - Google Patents
Power transformer winding online monitoring system Download PDFInfo
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- CN103399230A CN103399230A CN2013103279801A CN201310327980A CN103399230A CN 103399230 A CN103399230 A CN 103399230A CN 2013103279801 A CN2013103279801 A CN 2013103279801A CN 201310327980 A CN201310327980 A CN 201310327980A CN 103399230 A CN103399230 A CN 103399230A
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Abstract
The invention discloses a power transformer winding online monitoring system. The system mainly comprises a data acquiring device, a data processing device, a data storing device, a human-computer interaction device and a communicating device, wherein the data acquiring device acquires the voltage and current data and converts voltage and current signals into small current signals to be sent to the data processing device; the data processing device transmits the processed information to the data storing device and the communicating device; the human-computer interaction device displays the information. The power transformer winding online monitoring system can well online monitors the factors such as voltage, current, harmonic wave, load current level and power of a transformer winding, judges the operation state of a transformer and performs monitoring in real time.
Description
Technical field
The present invention relates to the Winding in Power Transformer monitoring technical field, be specifically related to a kind of Winding in Power Transformer on-line monitoring system.
Background technology
Transformer almost all will be used in all electronic products, its principle is simple but according to the technique for coiling of different use occasion (different purposes) transformer, have the difference requirement.The function of transformer mainly contains: voltage transformation; Impedance transformation; Isolation; Voltage stabilizings (magnetic saturation transformer) etc., the core configuration that transformer is commonly used generally has E type and C shaped iron core.
The basic pattern of transformer, comprise two groups of coils that are wound with wire, and claim to unify in the inductance mode each other.When an alternating current (having a certain given frequency) flows in one of them group coil, will induce the alternating voltage with same frequency in another group coil, and the voltage swing of induction depends on the degree of two coil couplings and magnetic interlinkage.
The coil that refers generally to connect AC power is primary winding; And across the voltage of this coil, be referred to as primary voltage.Induced voltage at secondary coil may be greater than or less than primary voltage, is to be determined by the turn ratio between primary winding and secondary coil, and transformer is divided into and boosted and two kinds of step-down transformers.
Still do not have factors such as voltage, electric current, harmonic wave, load current level and power on good on-line measurement Transformer Winding to realize the system of Real Time Monitoring in prior art.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of Winding in Power Transformer on-line monitoring system is provided, and is convenient to the monitoring to Winding in Power Transformer.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
A kind of Winding in Power Transformer on-line monitoring system comprises:
Data collector, be used for the data of collection Winding in Power Transformer and change corresponding data into signal sending to
Data processing equipment, this data processing equipment is connected with described data collector, and data processing equipment comprises FPGA, and data processing equipment be used for to receive the signal that data collector sends, then after processing by FPGA, information is sent to for storing
Data storage device and sending to for the human-computer interaction device that shows.
In order to realize better the present invention, further technical scheme is:
One of them embodiment according to the present invention, described data collector comprise that the information of voltage that this voltage transformer (VT) will obtain is converted to current signal and passes to data processing equipment for the voltage transformer (VT) that gathers the Winding in Power Transformer voltage data.
One of them embodiment according to the present invention, described data processing equipment comprise the first signal conditioning device of the current signal that transmits for the receiver voltage mutual inductor.
One of them embodiment according to the present invention, also comprise A/D converter in described data processing equipment, described first signal conditioning device is converted to the current signal of voltage transformer (VT) voltage signal and sends to A/D converter and samples, and the data after A/D converter is processed pass to FPGA.
One of them embodiment according to the present invention, also comprise electric current and voltage zero passage treating apparatus in described data processing equipment, described electric current and voltage zero passage treating apparatus is connected with FPGA with the first signal conditioning device respectively.
One of them embodiment according to the present invention, described data collector also comprise that the data that this current transformer will obtain pass to data processing equipment for the current transformer that gathers the Winding in Power Transformer voltage data.
One of them embodiment according to the present invention, described data processing equipment comprise the secondary signal conditioning device of the current signal that transmits for the received current mutual inductor.
One of them embodiment according to the present invention, described secondary signal conditioning device are converted to the current signal of current transformer voltage signal and send to A/D converter and sample, and the data after A/D converter is processed pass to FPGA.
One of them embodiment according to the present invention, described secondary signal conditioning device also are connected with electric current and voltage zero passage treating apparatus.
The present invention can also be:
One of them embodiment according to the present invention, described data processing equipment also is connected with communication device, and described communication device is connected with monitoring station again.
Compared with prior art, one of beneficial effect of the present invention is:
Winding in Power Transformer on-line monitoring system of the present invention, take FPGA103 as platform, the factors such as voltage, electric current, harmonic wave, load current level and power on can well the on-line measurement Transformer Winding, and the running status of judgement transformer and realize Real Time Monitoring.
Description of drawings
For clearer explanation present specification embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in the description of embodiment or prior art be briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiment in present specification, for those skilled in the art,, in the situation that do not pay creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows Winding in Power Transformer on-line monitoring system according to an embodiment of the invention.
Wherein, the corresponding name of the Reference numeral in accompanying drawing is called:
The 101-data collector, the 102-data processing equipment, 103-FPGA, the storage of 104-synchronous dynamic random, the ferroelectric reservoir of 105-, the 106-human-computer interaction device, 107-voltage transformer (VT), 108-current transformer, 109-first signal conditioning device, 110-secondary signal conditioning device, 111-A/D converter, 112-electric current and voltage zero passage treating apparatus.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Fig. 1 shows Winding in Power Transformer on-line monitoring system according to an embodiment of the invention.a kind of Winding in Power Transformer on-line monitoring system as shown in Figure 1, comprise data collector 101, this data collector 101 is used for the data of collection Winding in Power Transformer and changes corresponding data into signal sending to data processing equipment 102, this data processing equipment 102 is connected with described data collector 101, data processing equipment 102 comprises FPGA, data processing equipment 102 is used for receiving the signal that data collector 101 sends, after processing by FPGA103 again, information is sent to the data storage device for storage, data storage device can be synchronous dynamic random storage 104, ferroelectric reservoir 105 etc., and send to for the human-computer interaction device 106 that shows, human-computer interaction device 106 can consist of liquid crystal display and keyboard, keyboard can adopt 5 * 4 conventional push button, can comprise system reset pad, function button etc.
The Winding in Power Transformer on-line monitoring system of the present embodiment is take FPGA103 as platform, and the factors such as the voltage on the on-line measurement Transformer Winding, electric current, harmonic wave, load current level and power, calculate and judge the running status of transformer and realize Real Time Monitoring.
Wherein, described data collector 101 can comprise in another embodiment for the voltage transformer (VT) 107 that gathers the Winding in Power Transformer voltage data with for the current transformer 108 that gathers the Winding in Power Transformer voltage data, certainly, according to the requirement of image data, also can comprise some other devices.The information of voltage that voltage transformer (VT) 107, current transformer 108 will obtain respectively and current information are converted to current signal (being generally small size current signal) and pass to data processing equipment 102.In one embodiment, voltage transformer (VT) 107 is connected with high pressure 3 Ф 0～750V, and current transformer 108 is connected with high pressure 3 Ф 0～50V.
Include the first signal conditioning device 109 of the current signal that transmits for receiver voltage mutual inductor 107 in data processing equipment 102, and the secondary signal conditioning device 110 that is used for the current signal of received current mutual inductor 108 transmission.
Being provided with as shown in Figure 1 the 3rd signal regulating device 114, the three signal regulating devices 114 in the data processing equipment 102 of another embodiment can be with after high pressure 3 Ф V 3 Ф A be connected, then with FPGA103, is connected.
Also comprise A/D converter 111 in data processing equipment 102, described first signal conditioning device 109 is converted to voltage signal with the current signal of voltage transformer (VT) 107 and sends to A/D converter 111 and samples, and the data after A/D converter 111 is processed pass to FPGA103; Same, secondary signal conditioning device 109 is converted to voltage signal with the current signal of current transformer 107 and sends to A/D converter 111 and samples, and the data after A/D converter 111 is processed pass to FPGA103.
The present invention can also be, signal regulating device respectively receiver voltage mutual inductor 107 summation current transformers 108 small size current signal and be converted into-voltage signal of 4.5V～4.5V sends to A/D converter 111 and samples, sampled result is transported in FPGA103.
Wherein, A/D converter 111 can adopt 6 passages, 16 high-precision A/D conversion chips, but is not limited to this.
Also can comprise electric current and voltage zero passage treating apparatus 112 in described data processing equipment 102, described electric current and voltage zero passage treating apparatus 112 is connected with FPGA with first signal conditioning device 109, secondary signal conditioning device 110 respectively.
Another embodiment of Winding in Power Transformer on-line monitoring system shown in Figure 1, described data processing equipment 102 also is connected with communication device 113, described communication device 113 is connected with the monitoring station (not shown in figure 1) again, and system fills 113 by communication and carries out communication with monitoring station.
Described communication device 113 can be selected RS485, is used for system and carries out communication with the monitoring main website, receives the various command that main website is assigned, and transmits the required various parameters of main website, reaches the purpose of Real Time Monitoring.
Winding in Power Transformer on-line monitoring system in sum, mainly by data collector 101, data processing equipment 102, data storage device, human-computer interaction device 106 and communication device 113, formed, data collector 101 gathers the electric current and voltage data and changes voltage and current signal into small size current signal and sends to data processing equipment 102, information after data processing equipment 102 will be processed sends to data storage device and communication device 113, and by human-computer interaction device 106, is shown.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part cross-references gets final product.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in instructions.Furthermore, while in conjunction with arbitrary embodiment, describing a specific features, structure or characteristics, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (10)
1. a Winding in Power Transformer on-line monitoring system, is characterized in that, comprising:
Data collector, be used for the data of collection Winding in Power Transformer and change corresponding data into signal sending to
Data processing equipment, this data processing equipment is connected with described data collector, and data processing equipment comprises FPGA, and data processing equipment be used for to receive the signal that data collector sends, then after processing by FPGA, information is sent to for storing
Data storage device and sending to for the human-computer interaction device that shows.
2. Winding in Power Transformer on-line monitoring system according to claim 1, it is characterized in that, described data collector comprises that the information of voltage that this voltage transformer (VT) will obtain is converted to current signal and passes to data processing equipment for the voltage transformer (VT) that gathers the Winding in Power Transformer voltage data.
3. Winding in Power Transformer on-line monitoring system according to claim 2, is characterized in that, described data processing equipment comprises the first signal conditioning device of the current signal that transmits for the receiver voltage mutual inductor.
4. Winding in Power Transformer on-line monitoring system according to claim 3, it is characterized in that, also comprise A/D converter in described data processing equipment, described first signal conditioning device is converted to the current signal of voltage transformer (VT) voltage signal and sends to A/D converter and samples, and the data after A/D converter is processed pass to FPGA.
5. Winding in Power Transformer on-line monitoring system according to claim 3, it is characterized in that, also comprise electric current and voltage zero passage treating apparatus in described data processing equipment, described electric current and voltage zero passage treating apparatus is connected with FPGA with the first signal conditioning device respectively.
6. the described Winding in Power Transformer on-line monitoring system of according to claim 1 to 5 any one, it is characterized in that, described data collector also comprises that the data that this current transformer will obtain pass to data processing equipment for the current transformer that gathers the Winding in Power Transformer voltage data.
7. Winding in Power Transformer on-line monitoring system according to claim 6, is characterized in that, described data processing equipment comprises the secondary signal conditioning device of the current signal that transmits for the received current mutual inductor.
8. Winding in Power Transformer on-line monitoring system according to claim 7, it is characterized in that, described secondary signal conditioning device is converted to the current signal of current transformer voltage signal and sends to A/D converter and samples, and the data after A/D converter is processed pass to FPGA.
9. Winding in Power Transformer on-line monitoring system according to claim 7, is characterized in that, described secondary signal conditioning device also is connected with electric current and voltage zero passage treating apparatus.
10. Winding in Power Transformer on-line monitoring system according to claim 7, is characterized in that, described data processing equipment also is connected with communication device, and described communication device is connected with monitoring station again.
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| CN2013103279801A CN103399230A (en) | 2013-07-31 | 2013-07-31 | Power transformer winding online monitoring system |
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| CN2013103279801A CN103399230A (en) | 2013-07-31 | 2013-07-31 | Power transformer winding online monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104714153A (en) * | 2013-12-11 | 2015-06-17 | 株式会社电子制御国际 | Winding test device |
| CN105548673A (en) * | 2015-11-30 | 2016-05-04 | 陈畅 | Transformer wireless monitor |
| CN111336913A (en) * | 2020-03-19 | 2020-06-26 | 苏州华电电气股份有限公司 | Transformer winding deformation live monitoring device |
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| CN202948087U (en) * | 2012-12-07 | 2013-05-22 | 深圳市双合电气股份有限公司 | Comprehensive monitoring system of transformer of electric power system |
| CN203433056U (en) * | 2013-07-31 | 2014-02-12 | 国家电网公司 | FPGA-based on-line monitoring system for power transformer winding |
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| WO2009026038A1 (en) * | 2007-08-16 | 2009-02-26 | Radian Research, Inc. | Instrument transformer test equipment and method |
| CN201331560Y (en) * | 2009-01-16 | 2009-10-21 | 南京因泰莱配电自动化设备有限公司 | Distributing transformer monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104714153A (en) * | 2013-12-11 | 2015-06-17 | 株式会社电子制御国际 | Winding test device |
| CN105548673A (en) * | 2015-11-30 | 2016-05-04 | 陈畅 | Transformer wireless monitor |
| CN111336913A (en) * | 2020-03-19 | 2020-06-26 | 苏州华电电气股份有限公司 | Transformer winding deformation live monitoring device |
| CN111336913B (en) * | 2020-03-19 | 2021-11-23 | 苏州华电电气股份有限公司 | Transformer winding deformation live monitoring device |
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Owner name: GUANGYUAN POWER SUPPLY COMPANY, STATE GRID SICHUAN Effective date: 20140107 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: CHENGDU ELECTRIC POWER BUREAU DOUBLE CURRENT POWER SUPPLY BUREAU Effective date: 20140107 |
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Effective date of registration: 20140107 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Guangyuan Power Supply Company of State Grid Sichuan Electric Power Corporation Address before: 610000, Sichuan, Chengdu province Shuangliu County Dongsheng Town, No. 35 Canton Avenue Applicant before: Shuangliu Power Supply Bureau, Chengdu Electric Power Bureau |
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Application publication date: 20131120 |