CN203909182U - Device for detecting time parameters of combined units of intelligent transformer station - Google Patents
Device for detecting time parameters of combined units of intelligent transformer station Download PDFInfo
- Publication number
- CN203909182U CN203909182U CN201420309087.6U CN201420309087U CN203909182U CN 203909182 U CN203909182 U CN 203909182U CN 201420309087 U CN201420309087 U CN 201420309087U CN 203909182 U CN203909182 U CN 203909182U
- Authority
- CN
- China
- Prior art keywords
- unit
- time
- merge cells
- message
- core processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000004458 analytical method Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 30
- 230000003993 interaction Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 abstract description 5
- 210000004027 cell Anatomy 0.000 description 97
- 238000005070 sampling Methods 0.000 description 23
- 230000001360 synchronised effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 241000272814 Anser sp. Species 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a device for detecting the time parameters of combined units of an intelligent transformer station, belongs to the technical field of intelligent transformer stations of the power system, and aims at solving the problem that a present detector for time parameters of the combined units tends to make mistakes in determining the states of the combined units as well as in determining whether the combined units work synchronously. The device of the utility model comprises a core processing unit, a network transmitting-receiving unit and a time reference unit, wherein the core processing unit is connected with both the network transmitting-receiving unit and the time reference unit, and includes a time performance analyzing unit, a comparison and calculation unit and an obtaining unit. The device calculates and analyzes the time parameters of the combined units, and determines the states of the combined units as well as whether the combined units work synchronously according to the calculation and analysis results.
Description
Technical field
The utility model belongs to the technical field of intelligent substation of electric power system, is specifically related to a kind of device for detection of Intelligent substation merging unit time parameter.
Background technology
2009, State Grid Corporation of China proposed to build the developing goal of strong intelligent grid, and intelligent substation supports as important foundation and the node of strong intelligent grid, is very important construction content.The construction that substation communication network and system protocol IEC61850 are intelligent substation provides standard.Intelligent substation comprises electronic mutual inductor, merge cells (Merging Unit, and intelligent electronic device (Intelligent Electronic Device MU), IED), electronic mutual inductor is for sampling to magnitude of voltage and current value, merge cells is encapsulated as SMV (Sampled Value) message for the form that the information such as sampled value and sampling time of electronic mutual inductor is specified by standard, and SMV message is sent to intelligent electronic device, electronic mutual inductor often sampling should be carried out data, merge cells is just by the data encapsulation of sampling and send SMV message one time.Intelligent electronic device is first to SMV message decoding, then judges the situation of current substation operation according to the magnitude of voltage of sampling and current value.
Intelligent substation is very high to the synchronous requirement of time.The time parameter of merge cells comprises the time interval and time delay, and the time interval and time delay are the scopes that has regulation.The on-the-spot merge cells using of intelligent substation is conventionally from different producers, and for synchronous working, the time parameter setting of the merge cells of different manufacturers is the same.
The time interval and time delay that at present existing a equipment can combining data detection unit, this equipment one-time detection one road merge cells, then the testing result of Dui Ge road merge cells compares, if find that there is the testing result of a road merge cells and the testing result difference of other road merge cellses is larger, judge this road merge cells fault.Because one-time detection one road merge cells, detected time of every road merge cells is just different, the network environment of every road merge cells is also just different, testing result between the merge cells of Zai Duimei road comprises that the time interval and time delay compare like this, easily causes the state of Dui Ge road merge cells and whether synchronous working misjudgment.
Utility model content
Use the equipment of time parameter of current combining data detection unit easily to cause the state of Dui Ge road merge cells and the wrongheaded problem of synchronous working whether in order to solve, the utility model proposes a kind of device for detection of Intelligent substation merging unit time parameter, improve the state of Dui Ge road merge cells and the object of the accuracy that synchronous working judges whether to realize.
The device of the time parameter for detection of Intelligent substation merging unit of the present utility model, this device comprises core processing unit, network Transmit-Receive Unit and time reference unit; Described time reference unit is connected with described core processing unit; Described core processing unit comprises time performance analysis unit, comparison computing unit and acquiring unit, and wherein, described relatively computing unit is connected with described acquiring unit; Described time performance analysis unit is connected with described relatively computing unit; Described core processing unit is connected with described network Transmit-Receive Unit by described acquiring unit.
Device for detection of Intelligent substation merging unit time parameter of the present utility model, acquiring unit obtains the sampled data of multichannel merge cells, relatively computing unit calculates the data such as time delay and the time interval of this road merge cells according to the sampled data of every road merge cells, the data such as time delay and the time interval of Dui Mei road, time performance analysis unit merge cells are carried out statistical study, user can judge the state of multichannel merge cells and synchronous working whether according to the result of statistical study, because be the sampled data of obtaining multichannel merge cells simultaneously, while having ensured to obtain data, multichannel merge cells network environment is consistent, improve the state of Dui Ge road merge cells and accuracy and the degree of accuracy whether synchronous working judges.
Wherein, described device also comprises man-machine interaction unit, and described man-machine interaction unit is connected with described core processing unit.
Man-machine interaction unit can allow user arrange the parameter of device of the present utility model, convenient for users to use.
Wherein, described device also comprises storage unit, and described storage unit is connected with described core processing unit.
The data of cell stores sampling while needing sampled data to analyze, just can recall the data analysis of the sampling of storage so later.
Wherein, described device also comprises and replays unit, described in replay unit and be connected with described storage unit.
Replay unit the sampled data of storing in storage unit is carried out to playback, user can be to the data analysis examination & verification of playback, to check the potential problem that may exist like this.
Wherein, described storage unit is the internal storage medium of mobile memory medium or described device.
When storage unit is mobile memory medium, facilitate the movement of data; When storage unit is internal storage medium, read or write speed is fast.
Wherein, described device also comprises display unit, and described display unit is connected with described core processing unit.
Display unit is convenient for users to use.
Brief description of the drawings
Fig. 1 is the structural representation of the device for detection of Intelligent substation merging unit time parameter of the present utility model;
Fig. 2 is the workflow diagram of the device for detection of Intelligent substation merging unit time parameter of the present utility model;
Fig. 3 is the schematic diagram of the preferred structure of the device for detection of Intelligent substation merging unit time parameter of the present utility model;
Fig. 4 is the workflow diagram for detection of the device of Intelligent substation merging unit time parameter shown in Fig. 3;
Fig. 5 is the schematic diagram of the another kind of preferred structure of the device for detection of Intelligent substation merging unit time parameter of the present utility model;
Fig. 6 is the workflow diagram of the device for detection of Intelligent substation merging unit time parameter shown in Fig. 5.
Embodiment
Fig. 1 is the structural representation of the device for detection of Intelligent substation merging unit time parameter of the present utility model, and this device comprises core processing unit 11, network Transmit-Receive Unit 12 and time reference unit 13.Time reference unit 13 is connected with core processing unit 11, is used to device of the present utility model that time signal is provided, so that the time of each ingredient of the device of the present utility model time signal that all adopts time reference unit 13 to produce.Network Transmit-Receive Unit 12 is connected with core processing unit 11, the time signal providing according to time reference unit 13 is to needing message to be processed to stamp timestamp on network, the communication of Intelligent Substation System is based on TCP/IP (TCP/IP, Transmission Control Protocol/Internet Protocol) network, Intelligent Substation System internal data with message form in TCP/IP transmission over networks; Need message to be processed to comprise the information such as sampled data; Network Transmit-Receive Unit 12 is to needing message to be processed to stamp timestamp on network, need message to be processed to refer to SMV message or PTP (the Precision Time Protocol on network, precision time protocol) message, network Transmit-Receive Unit 12 is to after needing message to be processed to stamp timestamp on network, core processing unit 11 just can be identified device of the present utility model and receive the time of SMV message or PTP message.Core processing unit 11 comprises time performance analysis unit 111, compares computing unit 112 and acquiring unit 113.Core processing unit 11 is connected with network Transmit-Receive Unit 12 by acquiring unit 113.Acquiring unit 113 has been stamped the message of timestamp for obtaining network Transmit-Receive Unit 12, and this message is resolved, in message, comprise the ID (Identity of merge cells, identity) sampled data such as time of information, sampled value, sampling, the id information of the merge cells on each road is not identical, after message is resolved, just obtain the sampled data of multichannel merge cells, and the data that obtain after resolving are sent to comparison computing unit 112.Relatively computing unit 112 is connected with acquiring unit 113, receive after the data that acquiring unit 113 sends over, produce internal measurement benchmark according to the data message sending, the sampled data of the multichannel merge cells then obtaining according to acquiring unit 113 analytic messages is calculated, such as calculating respectively interval computing time, sampling uniformity coefficient and the time delay of every road merge cells, relatively computing unit 112 can be FPGA (Field-Programmable Gate Array, field programmable gate array) module.Time performance analysis unit 111 is connected with comparison computing unit 112, for the result of calculation that compares computing unit 112 is carried out to statistical study, such as the time interval and the time delay of the time interval of Dui Mei road merge cells and the calculating of the time delay value of averaging and average variance, Dui Mei road merge cells are carried out quartile statistics, to obtain the statistic analysis result of every road merge cells, judge whether synchronous working of multichannel merge cells according to statistic analysis result.
First device for detection of Intelligent substation merging unit time parameter of the present utility model stamps timestamp by network Transmit-Receive Unit 12 to the message to be processed of the need on network; Then acquiring unit 113 obtains from network needs message to be processed, such as SMV message, in SMV message, comprise the information such as sampled data and merge cells ID, acquiring unit 113 is to SMV packet parsing, after being parsed, just obtain ID and the sampled data of merge cells, sampled data comprises the information such as sampled value and sampling time, the sampled data that has so just obtained ID He this merge cells of merge cells, acquiring unit 113 sends to comparison computing unit 112 the data that obtain after being parsed again; Relatively computing unit 112 calculates respectively the sampled data of this merge cells according to the ID of merge cells, obtain the information such as the time delay of this merge cells, the uniformity coefficient of sampling and the time interval by calculating sampling data, and a result of calculating is sent to time performance analysis unit 111; The calculating of the result of calculation that time performance analysis unit 111 sends comparison computing unit 112 to each merge cells value of averaging and average variance, and the data such as time delay to each merge cells, sampling uniformity coefficient and the time interval carry out quartile statistics, to obtain mean value and the average variance in time delay, sampling uniformity coefficient and the time interval etc. of each merge cells.The result of user's statistical study to each merge cells according to time performance analysis unit 111 can judge whether synchronous working of multichannel merge cells.Device for detection of Intelligent substation merging unit time parameter of the present utility model can detect the data such as time delay and the time interval of multichannel merge cells simultaneously, the data such as time delay and the time interval of Bing Duimei road merge cells are carried out statistical study, finally draw the result of statistical study, user can judge whether synchronous working of multichannel merge cells according to the result of statistical study.
Fig. 2 is the workflow diagram of the device for detection of Intelligent substation merging unit time parameter of the present utility model, and at step S1, time reference unit 13 provides time signal for this device; At step S2, the time signal that network Transmit-Receive Unit 12 sends according to time reference unit 13 is to needing message to be processed to stamp timestamp on network; At step S3, acquiring unit 113 obtains network Transmit-Receive Unit 12 has stamped the message of timestamp, and this message is resolved, to obtain the sampled data of multichannel merge cells; At step S4, the sampled data of the multichannel merge cells that relatively computing unit 112 obtains according to acquiring unit 113 analytic messages is calculated the information such as time delay and the time interval of every road merge cells; At step S5, the result Dui Mei road merge cells that time performance analysis unit 111 calculates the information such as time delay and the time interval of every road merge cells according to comparison computing unit 112 carries out statistical study.
Introduce in detail above-mentioned each step below.
At step S1, time reference unit 13 provides time signal for device of the present utility model, the time that the time of each ingredient of this device all adopts time reference unit 13 to provide, because device of the present utility model is wanted the time parameter of combining data detection unit, the namely parameter such as the time interval and time delay, so device of the present utility model will have a set of time of oneself.
At step S2, the time signal that network Transmit-Receive Unit 12 sends according to time reference unit 13 is to needing message to be processed to stamp timestamp on network.Network Transmit-Receive Unit 12 reads the time signal that time reference unit 13 sends, namely the time synchronized of the time of network Transmit-Receive Unit 12 and time reference unit 13.Network Transmit-Receive Unit 12 receives the information on network, information on network comprises various messages, such as message, SMV message, Goose (the Generic Object Oriented Substation Events of TCP/IP protocol suite, towards the transformer substation case of general object) message and PTP message, SMV message, Goose message and PTP message belong to the message of substation communication network and system protocol IEC61850.What we needed is the message of substation communication network and system protocol IEC61850, be SMV message, Goose message and PTP message, these messages have comprised the mark of message, such as the flag character 88ba if of a message, 88ba is sexadecimal number, represents that this message is SMV message.SMV message, Goose message and PTP message etc. are stamped after timestamp, and the network information is sent to acquiring unit 113 by network Transmit-Receive Unit 12.
At step S3, acquiring unit 113 obtains network Transmit-Receive Unit 12 has stamped the message of timestamp, and this message is resolved, and the data after resolving are sent to comparison computing unit 112.The network information is sent to acquiring unit 113 by network Transmit-Receive Unit 12, acquiring unit 113 is classified to the information in network, acquiring unit 113 is also the kind that judges message according to the identification character of message, the message that finally obtains belonging to substation communication network and system protocol IEC61850, is introduced as an example of SMV message example below.Acquiring unit 113 is through to obtaining SMV message after network information classification, SMV message has been stamped timestamp when through network Transmit-Receive Unit 12, timestamp of the present utility model refers to that device of the present utility model receives the time of SMV message, catches the time of SMV message.Then acquiring unit 113 is resolved SMV message, by the parsing of SMV message is obtained to sampled data.The message format of SMV is a string sexadecimal number, the implication that each numeral has standard to specify, and the front 12 bit representation destination addresses of SMV message, destination address is MAC (Media Access Control, media interviews control) address; And then 12 of destination address character representation source addresses, source address is also MAC (Media Access Control, media interviews control) address, can identify the merge cells that sends this SMV message by source address, thereby obtain the id information of this merge cells; In SMV message, also comprise the information such as sampled value, sample number, sampling rate and sample counter.By can obtain the information such as ID, sampled value, sample number, sampling rate and the sample counter of merge cells to the parsing of SMV message.After being parsed, the data that acquiring unit 113 obtains parsing send to comparison computing unit 112.
At step S4, the sampled data of the multichannel merge cells that relatively computing unit 112 obtains according to acquiring unit 113 analytic messages is calculated the information such as time delay and the time interval of every road merge cells.Relatively computing unit 112 receives after the resolution data of SMV message, first produces measuring basis corresponding to sampled data comprising with SMV message, in order to check sampled data.Then, relatively computing unit 112 is according to the ID of each merge cells and the sampled data of this merge cells that receive, calculates the data such as the time interval, time delay and sampling period of each merge cells.Introduce computation process below.The every cycle of voltage signal that electric system transmits is 20ms (millisecond), a signal cycle will be got 80 sampled points as requested, per secondly so just have 4000 sampled points, often sampling should be carried out, and merge cells sends a SMV message, per secondly like this 4000 SMV messages will be sent, the sample information of different time can be distinguished by working out 0 to 3999 message sequence number.The computing formula of the time interval and time delay is: the time interval=current sample acquisition time-previous sample acquisition time, the sample acquisition time is exactly the time that network Transmit-Receive Unit 12 is beaten timestamp to SMV message; Time delay=current capture time-(sample number/sampling rate) * sampling period, sample number and sampling rate are by obtaining SMV packet parsing, sampling period is that comparison computing unit 112 calculates, such as there being 4000 sampled points 1 second, so the sampling period be exactly 1 second divided by 4000, i.e. 250 μ s (microsecond).Relatively computing unit 112 calculates the time delay of every road merge cells and after the time interval, result of calculation is sent to time performance analysis unit 111.
At step S5, the result Dui Mei road merge cells that time performance analysis unit 111 calculates the information such as time delay and the time interval of every road merge cells according to comparison computing unit 112 carries out statistical study.Time performance analysis unit 111 receives after the time delay and time interval data of each merge cells, time delay to each merge cells and time interval data carry out statistical study, comprise the time parameter of more each road merge cells, mean value and average variance, the mean value in the time interval and the average variance of calculating time delay, and the data in time delay and the time interval are carried out respectively to quartile statistics, can draw the optimal compensation value of merge cells time parameter according to the result of statistical study.The statistic analysis result of multichannel merge cells is compared, judge the duty of multichannel merge cells and synchronous working whether.For example, in the time detecting three road merge cells C1, C2, C3, first the message that simultaneously the detects three road merge cellses line item of going forward side by side, then calculate respectively the time interval and the time delay of three road merge cellses, the time interval and the time delay of Dui San road merge cells C1, C2, C3 compare respectively again, if merge cells C1 compares with C3 with C2, the error in the time interval is greater than 10 microseconds, the error of time delay is more than or equal to 3 microseconds, judges merge cells C1 fault; If merge cells C1 compares with C3 with C2, the error in the time interval is less than or equal to 10 microseconds, and the error of time delay is less than 3 microseconds, judges that road merge cells C1 keeps synchronousing working with other roads merge cells C2 and C3.In addition, by the statistical study of time performance analysis unit 111, can judge that whether the link of the message that transmits merge cells is abnormal; If it is abnormal that the message of each road merge cells periodically all occurs, judge that link is abnormal, described periodicity refers to that the message of the identical time merge cells in interval occurs once abnormal; For example You San road merge cells, if the identical time of the message interval of Zhe San road merge cells all occurs that anomaly ratio is as long in time delay, represents that link is abnormal.
Fig. 3 is the schematic diagram of the preferred structure of the device for detection of Intelligent substation merging unit time parameter of the present utility model, and the time reference unit 13 of this device comprises external clock reference receiving element 131 and oscillator 132.External clock reference receiving element 131 is for receiving the time signal of external clock reference, external clock reference can be GPS, Galilean satellite positioning system, Beidou satellite navigation system or other external time system, external clock reference receiving element 131 can be GPS (Global Positioning System, GPS) interface or IRIG-B (InterRange Instrumentation Group, surveying instrument group between target range) interface.Oscillator 132 is connected with external clock reference receiving element 131, calibrates and adjusts then generation time signal for the time signal that external clock reference receiving element 131 is received, and oscillator 132 can be rubidium atomic clock.When external clock reference receiving element 131 is synchronizeed with GPS, Galilean satellite positioning system or Beidou satellite navigation system like this, oscillator 132 produces UTC (Universal Time, Coordinated, world concordant time) time signal, because GPS, Galilean satellite positioning system or Beidou satellite navigation system use the UTC time; When external clock reference receiving element 131 with other when system synchronization external time, because we can arrange the time of other system external time, oscillator 132 just produces relative time signal, the relative time here refers to the time that we can arrange, and is on January 1st, 1970 now such as we can arrange.
Fig. 4 is the workflow diagram for detection of the device of Intelligent substation merging unit time parameter shown in Fig. 3, and at step T1, external clock reference receiving element 131 receives the time signal of external clock reference, and time signal is sent to oscillator 132; At step T2, oscillator 132 receives time signal, then time signal is calibrated to adjustment, thinks that whole device provides internal clock source; At step T3, network Transmit-Receive Unit 12 time signal that 132 calibrations produce after adjusting according to oscillator is to needing message to be processed to stamp timestamp on network; At step T4, acquiring unit obtain network Transmit-Receive Unit stamped timestamp message, and this message is resolved, to obtain the sampled data of multichannel merge cells; At step T5, the sampled data of the multichannel merge cells that relatively computing unit obtains according to acquiring unit analytic message is calculated the information such as time delay and the time interval of every road merge cells; At step T6, time performance analysis unit carries out statistical study to the information such as the time interval and time delay that relatively computing unit calculates.
Fig. 5 is the schematic diagram of the another kind of preferred structure of the device for detection of Intelligent substation merging unit time parameter of the present utility model, and this device also comprises display unit 16, replays unit 15 and storage unit 14.Display unit 16 is connected with core processing unit 11, and with replay unit 15 and be connected, for showing state or the information of this device, such as the maybe information such as time of this device of the process of this device deal with data, progress, result, display unit 16 can be display.Storage unit 14 is connected with core processing unit 11, for store acquiring unit 113 obtain resolve obtain sampled data.Replay unit 15 and be connected with storage unit 14, the sampled data confession user examination & verification of storing for recalling storage unit 14.Storage unit 14 can be the internal storage medium of mobile memory medium or device of the present utility model.
Fig. 6 is the workflow diagram of the device for detection of Intelligent substation merging unit time parameter shown in Fig. 5, and at step P1, time reference unit 13 provides time signal for whole device; At step P2, network Transmit-Receive Unit 12 according to the time signal of time reference unit 13 to needing message to be processed to stamp timestamp on network; At step P3, acquiring unit obtains network Transmit-Receive Unit has stamped the message of timestamp, and this message is resolved, to obtain the sampled data of multichannel merge cells; At step P4, the sampled data of the multichannel merge cells that relatively computing unit obtains according to acquiring unit analytic message is calculated the information such as time delay and the time interval of every road merge cells; At step P5, the result Dui Mei road merge cells that time performance analysis unit 111 calculates the information such as time delay and the time interval of every road merge cells according to comparison computing unit 112 carries out statistical study; At step P6, storage unit 14 is stored acquiring unit 113 and is obtained and resolve the sampled data that obtains, before store sample data, and can the storage of choice for use USB flash disk or internal storage storage, sampled rear storage or real-time storage can be selected, the form of storage can be selected; At step P7, replay the sampled data of storage in unit 15 reading cells 14; At step P8, display unit 16 demonstrations replay the sampled data that unit 15 reads; At step P9, user need to audit sampled data according to oneself, to determine any potential problem.
Preferably, device of the present utility model also comprises man-machine interaction unit, and man-machine interaction unit is connected with core processing unit 11, mutual for carrying out between user and device of the present utility model.
Claims (6)
1. for detection of a device for the time parameter of Intelligent substation merging unit, it is characterized in that, this device comprises core processing unit (11), network Transmit-Receive Unit (12) and time reference unit (13);
Described time reference unit (13) is connected with described core processing unit (11);
Described core processing unit (11) comprises time performance analysis unit (111), compares computing unit (112) and acquiring unit (113), wherein,
Described relatively computing unit (112) is connected with described acquiring unit (113);
Described time performance analysis unit (111) is connected with described relatively computing unit (112);
Described core processing unit (11) is connected with described network Transmit-Receive Unit (12) by described acquiring unit (113).
2. the device of the time parameter for detection of Intelligent substation merging unit according to claim 1, is characterized in that, described device also comprises man-machine interaction unit, and described man-machine interaction unit is connected with described core processing unit (11).
3. the device of the time parameter for detection of Intelligent substation merging unit according to claim 1 and 2, it is characterized in that, described device also comprises storage unit (14), and described storage unit (14) is connected with described core processing unit (11).
4. the device of the time parameter for detection of Intelligent substation merging unit according to claim 3, it is characterized in that, described device also comprises and replays unit (15), described in replay unit (15) and be connected with described storage unit (14).
5. the device of the time parameter for detection of Intelligent substation merging unit according to claim 3, is characterized in that, described storage unit (14) is the internal storage medium of mobile memory medium or described device.
6. the device of the time parameter for detection of Intelligent substation merging unit according to claim 1 and 2, it is characterized in that, described device also comprises display unit (16), and described display unit (16) is connected with described core processing unit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309087.6U CN203909182U (en) | 2014-06-11 | 2014-06-11 | Device for detecting time parameters of combined units of intelligent transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309087.6U CN203909182U (en) | 2014-06-11 | 2014-06-11 | Device for detecting time parameters of combined units of intelligent transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909182U true CN203909182U (en) | 2014-10-29 |
Family
ID=51783444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309087.6U Expired - Lifetime CN203909182U (en) | 2014-06-11 | 2014-06-11 | Device for detecting time parameters of combined units of intelligent transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569164A (en) * | 2016-10-17 | 2017-04-19 | 国家电网公司 | Method and system for synchronization testing of electric quantity of double-core electric energy meter |
| CN109981418A (en) * | 2019-04-11 | 2019-07-05 | 广东电网有限责任公司 | A kind of communication quality sensory perceptual system and method |
-
2014
- 2014-06-11 CN CN201420309087.6U patent/CN203909182U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569164A (en) * | 2016-10-17 | 2017-04-19 | 国家电网公司 | Method and system for synchronization testing of electric quantity of double-core electric energy meter |
| CN106569164B (en) * | 2016-10-17 | 2019-04-23 | 国家电网公司 | A kind of synchronous detecting method and system of twin-core electric energy meter electricity |
| CN109981418A (en) * | 2019-04-11 | 2019-07-05 | 广东电网有限责任公司 | A kind of communication quality sensory perceptual system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Song et al. | Smart sensors and standard-based interoperability in smart grids | |
| CN102621414B (en) | Method and system for comprehensively and synchronously observing lightning stroke discharge | |
| CN106526617B (en) | A kind of DEFORMATION MONITORING SYSTEM and method of the high accuracy positioning based on LORA | |
| CN101331736B (en) | Using travel-time as means for improving the accuracy of simple network time protocol | |
| CN112543078B (en) | Network time server calibration method and device based on satellite common view | |
| CN104076321B (en) | On-line monitoring and evaluating system and method for digital electric energy meter | |
| CN109462452B (en) | Method for improving sampling synchronization precision of transient recording type fault indicator | |
| CN105391509B (en) | Network interface split-second precision scaling method based on FPGA | |
| CN101629995A (en) | Detection method of phasor measurement unit PMU | |
| WO2017117482A1 (en) | Time signal manipulation and spoofing detection based on a latency of a communication system | |
| CN106950426A (en) | Three-phase electric energy meter and its measuring method based on wide area synchro measure | |
| CN105785402B (en) | A kind of system and method for GNSS signal simulator time-delay calibration | |
| US20100293243A1 (en) | method and apparatus for measuring directionally differentiated (one-way) network latency | |
| Wang et al. | Time of flight based two way ranging for real time locating systems | |
| CN203909182U (en) | Device for detecting time parameters of combined units of intelligent transformer station | |
| CN104020375A (en) | Device and method for detecting time parameters of intelligent substation merging units | |
| CN1965270B (en) | Measuring clock jitter | |
| CN204287461U (en) | The specified time delay detector of Intelligent substation merging unit | |
| CN112187560A (en) | NTP network time service evaluation system, method and time service evaluation device | |
| CN102593955B (en) | Comprehensive intelligent time frequency testing system and testing method | |
| CN110297208A (en) | Digitize live various dimensions test method and test macro across interval metering system | |
| CN110062223A (en) | A kind of method and its circuit system of high-precise synchronization test camera frame signal | |
| US20150207645A1 (en) | Synchrophasor data management systems and methods | |
| CN103051487B (en) | Electrically-based industry network measure and the method for testing of control system clock synchronization protocol | |
| Fernandez | The Virginia tech calibration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 550002 No. 251, Jiefang Road, Guizhou, Guiyang Co-patentee after: SHANGHAI DIGIGRID INFORMATION TECHNOLOGY CO.,LTD. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd. Address before: 550002 No. 251, Jiefang Road, Guizhou, Guiyang Co-patentee before: SHANGHAI DIGIGRID INFORMATION TECHNOLOGY Co.,Ltd. Patentee before: Guizhou Electric Power Test Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200414 Address after: 550005 No. 32, Nanming, Guiyang District, Guizhou, Jiefang Road Co-patentee after: SHANGHAI KYLAND YUANJING INDUSTRIAL TECHNOLOGY Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd. Address before: 550002 No. 251, Jiefang Road, Guizhou, Guiyang Co-patentee before: SHANGHAI DIGIGRID INFORMATION TECHNOLOGY Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |