CN104215929A - Electronic transformer status monitor system - Google Patents
Electronic transformer status monitor system Download PDFInfo
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- CN104215929A CN104215929A CN201410495139.8A CN201410495139A CN104215929A CN 104215929 A CN104215929 A CN 104215929A CN 201410495139 A CN201410495139 A CN 201410495139A CN 104215929 A CN104215929 A CN 104215929A
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Abstract
The invention provides an electronic transformer status monitor system. The electronic transformer status monitor system comprises a distributed control unit, a main control unit and an output unit, wherein the distributed control unit is used to collect data volume signals and state variable signals of an electronic transformer, and comprises a data volume collection unit, a state variable collection unit, a standard transformer collection unit, a synchronous interface control unit and a wave record storage control unit, the main control unit is used to monitor, display and store data volume signal errors and work status of the electronic transformer, and comprises a control module, a status monitor module, an accuracy monitor module and a wave record monitor module, and the output unit comprises a local real time display unit and a remote real time display unit. Compared with the prior art, the electronic transformer status monitor system can monitor a plurality of the electronic transformers, can be synchronously connected with a plurality of external devices, can accurately monitor running status of the external devices, can record long term status and sudden failures, and furthermore can achieve remote monitoring for the electronic transformers.
Description
Technical field
The present invention relates to a kind of mutual inductor condition monitoring system, be specifically related to a kind of electronic mutual inductor condition monitoring system.
Background technology
Electronic mutual inductor is the key equipment of digital transformer substation, has that insulation system is simple, without magnetic saturation, transient response scope is large, volume is little, output signal directly can input Microcomputer and measure and the advantage such as proterctive equipment interface.But because the reliability of current electronic mutual inductor long-time running, life-span, error characteristics are unstable, operation maintenance problem never solves, have impact on electric mutual inductor applying in electrical network.
The on-the-spot electronic current mutual inductor run is before breaking down, some key parameter (such as state of insulation, key components duty, Power supply etc.) can there is in various degree change, thus cause electronic mutual inductor degradation, and deterioration finally causes mulual inductor malfunction gradually, time serious, substation accident will be caused.If therefore before mutual inductor performance breaks down, monitored the change of these key parameters by condition monitoring system, realize giving warning in advance, notice mutual inductor producer carries out safeguarding or changing, and it just can be avoided to produce serious consequence, ensure on-the-spot reliability of operation.
Simultaneously when electronic mutual inductor breaks down, parameters change curve when being out of order by this supervisory system fast restore, quick position failure cause, thus realize quick elimination of fault.
Therefore, in order to the running status of electronic mutual inductor can be judged accurately, judge whether may break down or there is fault according to state, accomplish predict fault and fast failure location in advance and recover, need a kind of equipment of long term monitoring electronic mutual inductor running status.
Summary of the invention
In order to meet the needs of prior art, the invention provides a kind of electronic mutual inductor condition monitoring system, described system comprises controller, and described controller comprises sub-control unit and main control unit; Described main control unit is connected with output unit;
Described sub-control unit, for gathering data volume signal and the state quantity signal of electronic mutual inductor;
Described main control unit, for monitoring, showing and store data volume signal errors and the duty of described electronic mutual inductor.
Preferably, described sub-control unit comprises data volume collecting unit, quantity of state collecting unit, standard mutual inductor collecting unit, sync cap control module and record ripple storage control unit;
Preferably, described data volume collecting unit comprises at least one merge cells interface and at least one electronic mutual inductor interface; Described electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits the data volume signal of tested mutual inductor and the data volume signal of standard mutual inductor;
Preferably, described quantity of state collecting unit comprises at least one merge cells interface, at least one electronic mutual inductor interface and at least one quantity of state special purpose interface;
Described quantity of state special purpose interface comprises at least one quantity of state interface; Described quantity of state interface, for connecting the quantity of state special purpose interface of tested mutual inductor, transmits the state quantity signal of tested mutual inductor;
Described electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits the state quantity signal of tested mutual inductor and the state quantity signal of standard mutual inductor;
Preferably, described standard mutual inductor collecting unit comprises at least one standard mutual inductor interface; Described standard mutual inductor interface is connected with the output interface of standard mutual inductor, the data volume signal of transmission standard mutual inductor;
Preferably, described sync cap control module comprises at least one synchronizing signal interface; Described synchronizing signal interface is connected with outside synchronous generator; Synchronizing signal is sent to main control unit by described sync cap control module, corrects the synchronous error of described main control unit;
Preferably, described record ripple storage control unit comprises at least one record ripple storage device interface; Described record ripple storage device interface is connected with outside record ripple memory device; The data volume signal of the tested mutual inductor that the control module of main control unit sends by described record ripple storage control unit, state quantity signal and data volume signal errors are stored into described record ripple memory device;
Preferably, described main control unit comprises control module, monitoring module, accuracy monitoring module and record ripple monitoring module;
Preferably, the data volume signal that data volume collecting unit, quantity of state collecting unit, standard mutual inductor collecting unit and sync cap control module in sub-control unit export by described control module, state quantity signal and synchronizing signal, be all sent to accuracy monitoring module and monitoring module;
The output signal of described accuracy monitoring module and described monitoring module is sent to record ripple monitoring module and output unit by described control module;
Preferably, described monitoring module, receive data volume signal and the state quantity signal of the tested mutual inductor that described control module sends, described data volume signal and data-quantity threshold are compared, state quantity signal and quantity of state threshold value are compared, judges that whether the running status of described electronic mutual inductor is normal;
Preferably, described accuracy monitoring module, the synchronizing signal exported according to sync cap control module, calculates the data volume signal errors of the tested mutual inductor of synchronization and standard mutual inductor;
Preferably, described record ripple monitoring module, according to the signal storage form that the record ripple working method adopted and record ripple storage control unit require, the data volume signal of the data volume signal of the tested mutual inductor that described control module sends, state quantity signal and data volume signal errors and standard mutual inductor and state quantity signal are processed, and the signal after process is sent to record ripple storage control unit by described control module;
Described record ripple working method comprises long-term record ripple automatically and triggers record ripple;
Preferably, described output unit comprises local display unit and long-range real-time display unit in real time;
The real-time display unit in described this locality comprises display device and input equipment, by the optimum configurations of input equipment adjustment to described monitoring module, accuracy monitoring module and record ripple monitoring module, thus show the waveform of electronic mutual inductor output signal and the duty of error amount and electronic mutual inductor in real time;
Described long-range real-time display unit comprises RCI, sends data volume signal and the state quantity signal of electronic mutual inductor, make described long-range PC show described waveform, described error amount and described duty in real time to long-range PC.
Compared with immediate prior art, excellent effect of the present invention is:
A kind of electronic mutual inductor condition monitoring system provided by the invention, directly can carry out condition monitoring to multiple electronic mutual inductor; Possess and connect multiple merge cells ability simultaneously, multiple merge cells can be monitored simultaneously; Possess synchronizing signal access function, can be synchronous with multiple external units of connection by synchronizing signal, the running status of the accurate watch-dog of energy; Possesses accuracy monitoring function; There is record wave energy, can key message be stored, possess long-term record simultaneously and involve triggering record wave energy, record long term state and catastrophic failure; Possess long-range linkage function, can, by all information at the enterprising row relax of long-range PC, facilitate data to preserve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1: electronic mutual inductor condition monitoring system structural representation in the embodiment of the present invention;
Fig. 2: electronic mutual inductor condition monitoring system structural drawing in the embodiment of the present invention;
Fig. 3: electronic mutual inductor condition monitoring system cut-away drawing in the embodiment of the present invention;
Fig. 4: quantity of state communication protocol schematic diagram in the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
A kind of electronic mutual inductor condition monitoring system provided by the invention comprises sub-control unit 11, main control unit 12 and output unit 13 3 parts as shown in Figure 1; Sub-control unit 11, for gathering data volume signal and the state quantity signal of electronic mutual inductor; Main control unit 12, for monitoring data volume signal errors and the duty of electronic mutual inductor; Electronic mutual inductor comprises tested mutual inductor and standard mutual inductor, and the input end of the two all inputs identical test signal.
One, sub-control unit;
As shown in Figure 2, sub-control unit 11 comprises data volume collecting unit 111, quantity of state collecting unit 112, standard mutual inductor collecting unit 113, sync cap control module 114 and record ripple storage control unit 115.
1, data volume collecting unit comprises M merge cells interface and N number of electronic mutual inductor interface; Electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits tested mutual inductor data volume signal and standard mutual inductor data volume signal; M and N is at least 1;
The merge cells be connected with merge cells interface in the present embodiment comprises at least one electronic mutual inductor interface.
Electronic mutual inductor interface, can be used for the data volume signal and the state quantity signal that transmit tested mutual inductor, also can be used for special transmitted data amount signal or state quantity signal; Data volume signal sends to data volume collecting unit, and state quantity signal gives quantity of state collecting unit.
Standard mutual inductor interface, can be used for the data volume signal of transmission standard mutual inductor, the data volume of input signal is sent to data volume collecting unit.
As shown in Figure 3, the transmission of merge cells interface, electronic mutual inductor interface equal supported data amount signal.
Data volume collecting unit 111 requires to be sent to main control unit 12 by after above-mentioned data volume signal framing according to interface protocol.
As shown in Figure 3, when data volume collecting unit 111 accesses multiple merge cells signal, data acquisition unit 111 can carry out simultaneously and separate data acquisition each merge cells; When each merge cells accesses multiple electronic mutual inductor, data acquisition unit 111 carries out simultaneously and separate data acquisition each electronic mutual inductor;
Between described merge cells and tested transformer interface, the communication mode adopted between merge cells and standard mutual inductor interface and agreement comprise RS232, RS422, RS485, FT3 etc., thus realize the data volume collection signal of data volume collecting unit 111, the output signal of electronic mutual inductor and the mutual of state quantity signal;
In described merge cells and the present embodiment, the communication of electronic mutual inductor condition monitoring system adopts and comprises IEC61850-9-1, IEC61850-9-2, IEC61850-9-2LE, IEC60044-8 and GOOSE etc., realizes the mutual of data volume signal and state quantity signal.
2, quantity of state collecting unit 112 comprises M merge cells interface, N number of electronic mutual inductor interface and P quantity of state special purpose interface; Electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits tested mutual inductor state quantity signal and standard mutual inductor state quantity signal; Quantity of state interface, for connecting the quantity of state special purpose interface of tested mutual inductor, transmits tested mutual inductor state quantity signal; M, N and P are at least 1.
The merge cells be connected with merge cells interface in the present embodiment comprises at least one electronic mutual inductor interface.
Quantity of state special purpose interface comprises at least one quantity of state interface, is connected, for transmitting the state quantity signal of tested mutual inductor with tested mutual inductor quantity of state special purpose interface.Can simultaneously and work alone between quantity of state special purpose interface; Technician can need according to actual condition the quantity adjusting this quantity of state special purpose interface;
As shown in Figure 3, the transmission of merge cells interface, electronic mutual inductor interface, quantity of state special purpose interface equal status of support amount signal.Quantity of state collecting unit requires to be sent to main control unit 12 by after above-mentioned state quantity signal framing according to interface protocol.
As shown in Figure 3, when quantity of state collecting unit accesses multiple electronic mutual inductor, the while that quantity of state collecting unit can carrying out above-mentioned electronic mutual inductor and independently data acquisition;
Another preferred embodiment of the present invention is that data volume interface and quantity of state interface adopt same interface to carry out Signal transmissions.
3, standard mutual inductor collecting unit 113 comprises at least one standard mutual inductor interface, and this standard mutual inductor interface is connected with the output interface of standard mutual inductor, for the data volume signal of transmission standard mutual inductor; This data volume signal as the standard signal of main control unit 12, for calculate tested mutual inductor output signal error;
Standard mutual inductor collecting unit 113 requires to be sent to main control unit 12 by after above-mentioned data volume signal framing according to interface protocol.
4, sync cap control module 114 comprises at least one synchronizing signal interface, is connected with the synchronous generator of outside, synchronizing signal is accessed main control unit 12, corrects the synchronous error of its each module;
In the present embodiment, synchronizing signal comprises gps signal, IRIG-B code, PPS pps pulse per second signal etc.
5, record ripple storage control unit 115 and comprise at least one record ripple storage device interface, be connected with record ripple memory device, the output signal of electronic mutual inductor, output signal error and state quantity signal etc. are sent to record ripple memory device.
The record ripple working method of record ripple storage control unit comprises long-term record ripple automatically and triggers record ripple two kinds of modes.The long-term ripple of record automatically refers to the record ripple frequency of record ripple storage control unit according to default, the monitor message that autostore is arranged; Trigger record ripple refer to needs record ripple time carry out record ripple by manual activation, trigger record ripple can at any time, carry out with arbitrary time span.
Two, main control unit;
As shown in Figure 2, main control unit comprises control module 122, monitoring module 121, accuracy monitoring module 123 and record ripple monitoring module 124; Control module 122 is connected with output unit 13.
Monitoring module 121 receives data volume signal and the state quantity signal of the tested mutual inductor that sub-control unit 11 sends, described data volume signal and data-quantity threshold are compared, state quantity signal and quantity of state threshold value are compared, judges that the running status of electronic mutual inductor is enough normal; State quantity signal is recorded ripple monitoring module 124 according to being sent to after storage protocol framing simultaneously.
The synchronizing signal that accuracy monitoring module 123 sends according to sync cap control module, calculates the difference of the data volume signal of the tested mutual inductor of synchronization and standard mutual inductor, obtains the output error signal of described tested mutual inductor; Output error signal is recorded ripple monitoring module 124 according to being sent to after storage protocol framing simultaneously.
The data volume signal of the data volume signal of the tested mutual inductor that control module sends by record ripple monitoring module 124, state quantity signal and output error signal and standard mutual inductor and state quantity signal, according to the signal storage form that record ripple working method and record ripple storage control unit require, and the signal after process is sent to record ripple storage control unit by described control module; Technician can call the signal data in record ripple memory device by record ripple monitoring module 124 according to duty requirements simultaneously.
Described record ripple monitoring module, according to the signal storage form that the record ripple working method adopted and record ripple storage control unit require, the data volume signal of the data volume signal of the tested mutual inductor that described control module sends, state quantity signal and data volume signal errors and standard mutual inductor and state quantity signal are processed, and the signal after process is sent to record ripple storage control unit by described control module;
Control module receives data volume signal, state quantity signal and the synchronizing signal that in sub-control unit, data volume collecting unit 111, quantity of state collecting unit 112, standard mutual inductor collecting unit 113 and sync cap control module 114 send, and above-mentioned data volume signal, state quantity signal and synchronizing signal is all sent to accuracy monitoring module and monitoring module processes;
The output signal of accuracy monitoring module and monitoring module is sent to record ripple monitoring module 115 and carries out storing and the real-time display unit in this locality 131 of output unit and long-range real-time display unit 132 process by control module.
In the embodiment of the present invention, main control unit 12 can receive simultaneously and process the merge cells signal at least 2 tunnels, the data volume signal of tested mutual inductor, state quantity signal, the data volume signal of standard mutual inductor, state quantity signal, to the error etc. calculating output signal, and above-mentioned signal is sent to output unit 13 shows.
Three, output unit;
Output unit 13 comprises synchronization module, local display unit 131 and long-range real-time display unit 132 in real time, and the two can run simultaneously.
1, local display unit 131 in real time comprises display device and input equipment, by the optimum configurations of input equipment adjustment to monitoring module 121, accuracy monitoring module 123 and record ripple monitoring module 124, make display device can show the waveform of electronic mutual inductor output signal and the duty of error amount and electronic mutual inductor in real time;
In the present embodiment, display device can adopt liquid crystal display, and input equipment can adopt mouse, keyboard or touch input device.
2, long-range real-time display unit 132 comprises RCI, send output signal and the state quantity signal of electronic mutual inductor to long-range PC, make long-range PC show the waveform of electronic mutual inductor output signal and the duty of error amount and electronic mutual inductor in real time;
The present embodiment medium-long range PC can adopt desktop computer, portable computer, panel computer or mobile phone.
Synchronization module, for the operation of real-time for this locality display unit 131 is synchronized to long-range PC, also can be synchronized to the operation of long-range real-time unit 132 on local PC simultaneously.
3, in the present embodiment, the number of tested transformer interface, standard mutual inductor interface, data volume interface and quantity of state interface can be configured by the plug form of hardware interface, and the on off state of above-mentioned interface, parameter being configured by local display unit 131 in real time.
Four, the electronic mutual inductor state quantity signal can monitored in the present invention comprises light source (driving) state, luminous power state, half-wave voltage state, temperature sensor state, FPGA state, ADC state, reference signal state, 50Hz lockin signal state, synchronous regime, parity state, insulation air pressure etc.
The communications of tested mutual inductor quantity of state special purpose interface adopts the means such as asynchronous serial communication and ethernet communication; Wherein, asynchronous serial communication protocol comprises RS232, RS422, RS485 etc., and ethernet communication protocol comprises IEC61850-9-1, IEC61850-9-2, IEC61850-9-2LE, IEC60044-8 and GOOSE etc.
As Fig. 4 shows the sending order, starting character, cut-off symbol, check bit etc. of the state quantity signal transmission adopting asynchronous serial communication, wherein data sending order can be configured as required.If when adopting Ethernet to communicate separately, only need the data field data division in Fig. 4 being put into ethernet communication protocol.
Finally should be noted that: described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Claims (13)
1. an electronic mutual inductor condition monitoring system, described system comprises controller, it is characterized in that, described controller comprises sub-control unit and main control unit; Described main control unit is connected with output unit;
Described sub-control unit, for gathering data volume signal and the state quantity signal of electronic mutual inductor;
Described main control unit, for monitoring, showing and store data volume signal errors and the duty of described electronic mutual inductor.
2. the system as claimed in claim 1, is characterized in that, described sub-control unit comprises data volume collecting unit, quantity of state collecting unit, standard mutual inductor collecting unit, sync cap control module and record ripple storage control unit.
3. system as claimed in claim 2, is characterized in that, described data volume collecting unit comprises at least one merge cells interface and at least one electronic mutual inductor interface; Described electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits the data volume signal of tested mutual inductor and the data volume signal of standard mutual inductor.
4. system as claimed in claim 2, it is characterized in that, described quantity of state collecting unit comprises at least one merge cells interface, at least one electronic mutual inductor interface and at least one quantity of state special purpose interface;
Described quantity of state special purpose interface comprises at least one quantity of state interface; Described quantity of state interface, for connecting the quantity of state special purpose interface of tested mutual inductor, transmits the state quantity signal of tested mutual inductor;
Described electronic mutual inductor interface, for connecting tested mutual inductor and standard mutual inductor, transmits the state quantity signal of tested mutual inductor and the state quantity signal of standard mutual inductor.
5. system as claimed in claim 2, it is characterized in that, described standard mutual inductor collecting unit comprises at least one standard mutual inductor interface; Described standard mutual inductor interface is connected with the output interface of standard mutual inductor, the data volume signal of transmission standard mutual inductor.
6. system as claimed in claim 2, it is characterized in that, described sync cap control module comprises at least one synchronizing signal interface; Described synchronizing signal interface is connected with outside synchronous generator; Synchronizing signal is sent to main control unit by described sync cap control module, corrects the synchronous error of described main control unit.
7. system as claimed in claim 2, is characterized in that, described record ripple storage control unit comprises at least one record ripple storage device interface; Described record ripple storage device interface is connected with outside record ripple memory device; The data volume signal of the tested mutual inductor that the control module of main control unit sends by described record ripple storage control unit, state quantity signal and data volume signal errors are stored into described record ripple memory device.
8. the system as claimed in claim 1, is characterized in that, described main control unit comprises control module, monitoring module, accuracy monitoring module and record ripple monitoring module.
9. system as claimed in claim 8, it is characterized in that, the data volume signal that data volume collecting unit, quantity of state collecting unit, standard mutual inductor collecting unit and sync cap control module in sub-control unit export by described control module, state quantity signal and synchronizing signal, be all sent to accuracy monitoring module and monitoring module;
The output signal of described accuracy monitoring module and described monitoring module is sent to record ripple monitoring module and output unit by described control module.
10. system as claimed in claim 8, it is characterized in that, described monitoring module, receive data volume signal and the state quantity signal of the tested mutual inductor that described control module sends, described data volume signal and data-quantity threshold are compared, state quantity signal and quantity of state threshold value are compared, judges that whether the running status of described electronic mutual inductor is normal.
11. systems as claimed in claim 8, is characterized in that, described accuracy monitoring module, the synchronizing signal exported according to sync cap control module, calculate the data volume signal errors of the tested mutual inductor of synchronization and standard mutual inductor.
12. systems as claimed in claim 8, it is characterized in that, described record ripple monitoring module, according to the signal storage form that the record ripple working method adopted and record ripple storage control unit require, the data volume signal of the data volume signal of the tested mutual inductor that described control module sends, state quantity signal and data volume signal errors and standard mutual inductor and state quantity signal are processed, and the signal after process is sent to record ripple storage control unit by described control module;
Described record ripple working method comprises long-term record ripple automatically and triggers record ripple.
13. the system as claimed in claim 1, is characterized in that, described output unit comprises local display unit and long-range real-time display unit in real time;
The real-time display unit in described this locality comprises display device and input equipment, by the optimum configurations of input equipment adjustment to described monitoring module, accuracy monitoring module and record ripple monitoring module, thus show the waveform of electronic mutual inductor output signal and the duty of error amount and electronic mutual inductor in real time;
Described long-range real-time display unit comprises RCI, sends data volume signal and the state quantity signal of electronic mutual inductor, make described long-range PC show described waveform, described error amount and described duty in real time to long-range PC.
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| CN105807245B (en) * | 2014-12-29 | 2018-11-27 | 肖浩 | Multi-channel electronic formula transformer intelligent tester |
| CN106681179A (en) * | 2015-11-10 | 2017-05-17 | 北京精微智能科技有限公司 | Real-time synchronization data acquisition device |
| CN106093824A (en) * | 2016-05-31 | 2016-11-09 | 全球能源互联网研究院 | A kind of internal state quantity monitoring method of electronic mutual inductor |
| CN105842645A (en) * | 2016-06-06 | 2016-08-10 | 中国南方电网有限责任公司电网技术研究中心 | Electronic type transformer online monitoring device and monitoring method |
| CN105842645B (en) * | 2016-06-06 | 2018-11-30 | 中国南方电网有限责任公司电网技术研究中心 | Electronic mutual inductor on-Line Monitor Device and monitoring method |
| CN106054095A (en) * | 2016-07-01 | 2016-10-26 | 河北箱变电器有限公司 | Monitoring equipment for secondary device for monitoring partial discharging and temperature monitoring device |
| CN106405299A (en) * | 2016-10-27 | 2017-02-15 | 中国南方电网有限责任公司电网技术研究中心 | On-line monitoring and checking system for mutual inductor |
| CN109116289A (en) * | 2018-11-15 | 2019-01-01 | 国网山东省电力公司电力科学研究院 | A kind of real-time acquisition system of high-voltage mutual inductor group operating status |
| CN111812576A (en) * | 2020-07-22 | 2020-10-23 | 积成电子股份有限公司 | System and method for adjusting transformer board of relay protection device |
| CN112511375A (en) * | 2020-11-10 | 2021-03-16 | 中国南方电网有限责任公司 | Automatic testing method for GOOSE dual-network receiving mechanism of intelligent substation process layer |
| CN112511375B (en) * | 2020-11-10 | 2022-09-06 | 中国南方电网有限责任公司 | Automatic test method for intelligent substation process level GOOSE dual-network receiving mechanism |
| CN112462664A (en) * | 2020-11-30 | 2021-03-09 | 广州仪速安电子科技有限公司 | Instrument interface data monitoring system |
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