CN202694021U - Substation time synchronizing system - Google Patents
Substation time synchronizing system Download PDFInfo
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- CN202694021U CN202694021U CN 201220186160 CN201220186160U CN202694021U CN 202694021 U CN202694021 U CN 202694021U CN 201220186160 CN201220186160 CN 201220186160 CN 201220186160 U CN201220186160 U CN 201220186160U CN 202694021 U CN202694021 U CN 202694021U
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- clock
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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Abstract
The utility model provides a substation time synchronizing system which comprises a main reference time source, a standby reference time source, a substation internal time source, a substation internal time synchronizing device and a substation internal timing device, wherein the priority of the main reference time source is higher than that of the standby reference time source, and the priority of the standby reference time source is higher than that of a substation internal clock; the main reference time source, the standby reference time source and the substation internal time source are all connected with the substation internal time synchronizing device, the time source with the highest priority is selected from the received time sources by the priority and used as the reference time; and the substation internal timing device is connected with the substation internal time synchronizing device, and the reference time is sent to a screen of the substation internal clock. Accurate and uniform time can be obtained by the substation time synchronizing system, and the coordination running reliability of substation electronic equipment is improved.
Description
Technical field
The utility model relates to the Time synchronization technique field, relates in particular to a kind of transformer station's clock synchronization system of realizing each electronic equipment time unification in the transformer station.
Background technology
Along with the raising of Automation of Electric Systems level, electric system has had higher requirement to the unification of full station and even total system clock time benchmark.
At present, large multi-Substation has been equipped with take Global Positioning System (GPS) GPS as main distributing clock synchronization system, is used for the clock correction of a transformer station or system, a table apparatus.Yet owing to lack unified technical requirement and configuration standard, existing clock synchronization system configuration is not quite similar, and transmission mode is different, and ruuning situation is also stable not, and equipment dependability and time precision can not meet the demands.
The utility model content
For the problems referred to above, the purpose of this utility model provides a kind of transformer station clock synchronization system, to obtain accurately unified time, improves the reliability of transformer station's electronic equipment coordinated operation.
The utility model provides a kind of transformer station clock synchronization system, and it comprises in primary standard time source, reference time source for subsequent use, the transformer station in time source, the transformer station time service device in the time synchronism apparatus and transformer station.The priority of described primary standard time source is higher than described reference time source for subsequent use, and the priority of described reference time source for subsequent use is higher than time source in the described transformer station.In the described transformer station in time synchronism apparatus and primary standard time source, reference time source for subsequent use, the transformer station time source all be connected and choose from high to low the higher time source of the priority level that receives as reference time according to priority.Time service device is connected with time synchronism apparatus in the transformer station and delivers to transformer station internal clock screen with awarding described reference time in the described transformer station.
In an embodiment of the present utility model, described primary standard time source is GPS/ big-dipper satellite time signal.
In an embodiment of the present utility model, described reference time source for subsequent use is higher level's time reference signal or atomic clock.
In an embodiment of the present utility model, time source is the constant-temperature crystal oscillator clock in the described transformer station.
In an embodiment of the present utility model, the time service mode of time service device is the IRIG-B code in the described transformer station, has serial ports, pulse, the output of network the multi-system signal.
In an embodiment of the present utility model, described clock screen comprises a major clock screen and a plurality of clock expansion screen, and described major clock screen is connected by optical fiber with a plurality of clock expansion screens.
In an embodiment of the present utility model, described major clock screen is located at the main control room of transformer station, and described a plurality of clock expansion screens are separately positioned on a plurality of minutes pulpit of transformer station.
In an embodiment of the present utility model, described major clock screen by optical fiber send the PTP precision net to the time signal to a plurality of clocks expansion screens.
The beneficial effects of the utility model are, adopt three time sources of time source in primary standard time source, reference time source for subsequent use, the transformer station, and different priority is set respectively, utilize time synchronism apparatus in the transformer station to be connected with time source in primary standard time source, reference time source for subsequent use, the transformer station and choose from high to low the higher time source of the priority level that receives as reference time according to priority, then utilize in the transformer station time service device to be connected with time synchronism apparatus in the transformer station and deliver to transformer station's internal clock screen with awarding described reference time.Thereby avoid a reference time source not receive the fault that causes a hidden trouble, time synchronism apparatus can obtain the more accurately time in the transformer station, improves the reliability of transformer station's electronic equipment coordinated operation.And, realize unifying with a time reference clock screen of all devices in the transformer station, guarantee the operation monitoring under the unified time benchmark of each system in the transformer station, event sequence and evolution that can the accurate description electric system, analysis provides effective analysis foundation to power grid accident, the fault analysis ability after the raising accident.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram of transformer station of the present utility model clock synchronization system.
Embodiment
Be to reach technological means and the effect that predetermined utility model purpose is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof to according to the filler cap opening handle assembly that the utility model proposes are described in detail as follows:
Relevant aforementioned and other technology contents of the present utility model, Characteristic can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, the utility model is limited.
Please refer to shown in Figure 1ly, the utility model provides a kind of transformer station clock synchronization system 100, comprises in primary standard time source 10, reference time source for subsequent use 20, the transformer station in time source 30, the transformer station time service device 50 in the time synchronism apparatus 40 and transformer station.
The priority of described primary standard time source 10 is higher than described reference time source for subsequent use 20, and the priority of described reference time source 20 for subsequent use is higher than time source 30 in the described transformer station.In the present embodiment, described primary standard time source 10 is GPS/ big-dipper satellite time signal.Described reference time source for subsequent use 20 is higher level's time reference signal or atomic clock.Time source 30 is the constant-temperature crystal oscillator clock in the described transformer station.
In the described transformer station in time synchronism apparatus 40 and primary standard time source 10, reference time source for subsequent use 20, the transformer station time source 30 all be connected and choose from high to low the higher time source of the priority level that receives as reference time according to priority.Particularly, when GPS/ big-dipper satellite time signal and higher level's time reference signal or atomic clock time signal can both normally receive simultaneously, the time source of preferred GPS/ big-dipper satellite time signal is as reference time, the time reference automatic shield of higher level's time reference signal or atomic clock time signal; When GPS/ big-dipper satellite time signal can not normally receive, automatic search received higher level's time reference signal or atomic clock time signal, extracted higher level's time reference signal or atomic clock time signal as reference time; When GPS/ big-dipper satellite time signal and higher level's time reference signal or atomic clock time signal all can not normally receive, adopt the time of inner high-precision constant-temperature crystal oscillator clock as reference time, make the time synchronizing signal of output still can guarantee certain accuracy; When GPS/ big-dipper satellite time signal and higher level's time reference signal or atomic clock time signal reception recovery, automatically switch and choose above-mentioned two kinds of signals.
Time service device 50 is connected with time synchronism apparatus 40 in the transformer station and delivers to transformer station internal clock screen 60 with awarding described reference time in the described transformer station.The time service mode of time service device is the IRIG-B code in the described transformer station, has the multi-system signal outputs such as serial ports, pulse, network.Described clock screen 60 comprises a major clock screen 62 and a plurality of clock expansion screen 64.Described major clock screen 62 and a plurality of clocks expansions are shielded 64 and are connected by optical fiber.Described major clock screen 62 by optical fiber send the PTP precision net to the time signal to a plurality of clocks expansion screens 64.Described major clock screen 62 is located at the main control room of transformer station, and described a plurality of clock expansion screens 64 are separately positioned on a plurality of minutes pulpit of transformer station.
Transformer station of the present utility model clock synchronization system can realize unifying with a time reference clock screen of all devices in the transformer station, guarantee the operation monitoring under the unified time benchmark of each system in the transformer station, event sequence and evolution that can the accurate description electric system, analysis provides effective analysis foundation to power grid accident, the fault analysis ability after the raising accident.
The above, only be embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. transformer station's clock synchronization system, it is characterized in that, described transformer station clock synchronization system comprises the primary standard time source, reference time source for subsequent use, time source in the transformer station, time service device in time synchronism apparatus and the transformer station in the transformer station, the priority of described primary standard time source is higher than described reference time source for subsequent use, the priority of described reference time source for subsequent use is higher than time source in the described transformer station, time synchronism apparatus and primary standard time source in the described transformer station, reference time source for subsequent use, time source all connects and chooses from high to low the higher time source of the priority level that receives as reference time according to priority in the transformer station, and time service device is connected with time synchronism apparatus in the transformer station and delivers to transformer station's internal clock screen with awarding described reference time in the described transformer station.
2. transformer station according to claim 1 clock synchronization system is characterized in that described primary standard time source is GPS/ big-dipper satellite time signal.
3. transformer station according to claim 1 clock synchronization system is characterized in that described reference time source for subsequent use is higher level's time reference signal or atomic clock.
4. transformer station according to claim 1 clock synchronization system is characterized in that time source is the constant-temperature crystal oscillator clock in the described transformer station.
5. transformer station according to claim 1 clock synchronization system is characterized in that the time service mode of time service device is the IRIG-B code in the described transformer station, has serial ports, pulse, the output of network the multi-system signal.
6. transformer station according to claim 1 clock synchronization system is characterized in that, described clock screen comprises a major clock screen and a plurality of clock expansion screen, and described major clock screen is expanded to shield with a plurality of clocks and is connected by optical fiber.
7. transformer station according to claim 6 clock synchronization system is characterized in that, described major clock screen is located at the main control room of transformer station, and described a plurality of clocks expansion screens are separately positioned on a plurality of minutes pulpit of transformer station.
8. transformer station according to claim 6 clock synchronization system is characterized in that, described major clock screen by optical fiber send the PTP precision net to the time signal to a plurality of clocks expansion screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186160 CN202694021U (en) | 2012-04-27 | 2012-04-27 | Substation time synchronizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186160 CN202694021U (en) | 2012-04-27 | 2012-04-27 | Substation time synchronizing system |
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| CN202694021U true CN202694021U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220186160 Expired - Fee Related CN202694021U (en) | 2012-04-27 | 2012-04-27 | Substation time synchronizing system |
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| CN (1) | CN202694021U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103186130A (en) * | 2013-02-25 | 2013-07-03 | 中国电力科学研究院 | Energy management system and method for monitoring solar energy power supply equipment in power transmission line state |
| CN103592842A (en) * | 2013-11-08 | 2014-02-19 | 贵州电力试验研究院 | Intelligent substation clock synchronization reliability method capable of improving network sampling |
| CN104734338A (en) * | 2013-12-20 | 2015-06-24 | 国家电网公司 | Clock monitoring method, device and system of transformer substations |
| CN105425578A (en) * | 2015-11-03 | 2016-03-23 | 成都交大许继电气有限责任公司 | High-reliability time calibration method of relay protection device for communication manager |
| CN106094496A (en) * | 2016-06-27 | 2016-11-09 | 柳州电器科学研究所有限公司 | Transformer station's clock synchronization system |
| CN107290953A (en) * | 2017-06-16 | 2017-10-24 | 中广核工程有限公司 | Nuclear power plant's time service method, time service device and time dissemination system |
| CN107332864A (en) * | 2017-08-29 | 2017-11-07 | 长沙理工大学 | Electric substation automation system orientation contract network attack guarding method based on global synchronous clock differential management |
| CN111061147A (en) * | 2019-11-28 | 2020-04-24 | 南京国电南自电网自动化有限公司 | Wireless network-based regional intelligent substation time service system and method |
| CN114384790A (en) * | 2022-01-18 | 2022-04-22 | 中车长春轨道客车股份有限公司 | Time calibration method for motor train unit |
| CN115616890A (en) * | 2022-09-28 | 2023-01-17 | 广西自贸区见炬科技有限公司 | Thermoelectric system clock error prediction error correction system |
-
2012
- 2012-04-27 CN CN 201220186160 patent/CN202694021U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103186130B (en) * | 2013-02-25 | 2016-08-03 | 中国电力科学研究院 | The EMS of power transmission state monitoring solar power supply unit and method |
| CN103186130A (en) * | 2013-02-25 | 2013-07-03 | 中国电力科学研究院 | Energy management system and method for monitoring solar energy power supply equipment in power transmission line state |
| CN103592842A (en) * | 2013-11-08 | 2014-02-19 | 贵州电力试验研究院 | Intelligent substation clock synchronization reliability method capable of improving network sampling |
| CN103592842B (en) * | 2013-11-08 | 2015-04-29 | 贵州电力试验研究院 | Intelligent substation clock synchronization reliability method capable of improving network sampling |
| CN104734338A (en) * | 2013-12-20 | 2015-06-24 | 国家电网公司 | Clock monitoring method, device and system of transformer substations |
| CN105425578B (en) * | 2015-11-03 | 2017-12-26 | 成都交大许继电气有限责任公司 | Calibration method of the communication processor to protective relaying device high reliability |
| CN105425578A (en) * | 2015-11-03 | 2016-03-23 | 成都交大许继电气有限责任公司 | High-reliability time calibration method of relay protection device for communication manager |
| CN106094496A (en) * | 2016-06-27 | 2016-11-09 | 柳州电器科学研究所有限公司 | Transformer station's clock synchronization system |
| CN107290953A (en) * | 2017-06-16 | 2017-10-24 | 中广核工程有限公司 | Nuclear power plant's time service method, time service device and time dissemination system |
| CN107332864A (en) * | 2017-08-29 | 2017-11-07 | 长沙理工大学 | Electric substation automation system orientation contract network attack guarding method based on global synchronous clock differential management |
| CN107332864B (en) * | 2017-08-29 | 2020-01-03 | 长沙理工大学 | Substation automation system directional collaborative network attack protection method based on global synchronous clock differentiation management |
| CN111061147A (en) * | 2019-11-28 | 2020-04-24 | 南京国电南自电网自动化有限公司 | Wireless network-based regional intelligent substation time service system and method |
| CN114384790A (en) * | 2022-01-18 | 2022-04-22 | 中车长春轨道客车股份有限公司 | Time calibration method for motor train unit |
| CN114384790B (en) * | 2022-01-18 | 2023-08-18 | 中车长春轨道客车股份有限公司 | Time calibration method for motor train unit |
| CN115616890A (en) * | 2022-09-28 | 2023-01-17 | 广西自贸区见炬科技有限公司 | Thermoelectric system clock error prediction error correction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180427 |