CN103888236A - Clock synchronization monitoring method applicable to intelligent substation - Google Patents
Clock synchronization monitoring method applicable to intelligent substation Download PDFInfo
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- CN103888236A CN103888236A CN201410110794.7A CN201410110794A CN103888236A CN 103888236 A CN103888236 A CN 103888236A CN 201410110794 A CN201410110794 A CN 201410110794A CN 103888236 A CN103888236 A CN 103888236A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims description 26
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 230000001915 proofreading effect Effects 0.000 abstract 2
- 230000002123 temporal effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
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Abstract
The invention relates to a clock synchronization monitoring method applicable to an intelligent substation and belongs to the technical field of the intelligent substations. The method includes the steps of carrying out closed-loop monitoring on a time synchronization system (comprising a clock device and a timed device) of the intelligent substation, monitoring state self-check information of a clock and the timed device in the substation to realize quick monitoring on predictable faults, and moreover monitoring service data associated with synchronous application of the timed device so that the state of time synchronization can be reflected and the time proofreading state can be monitored. The method solves the problems that feedback lacks and the working state can not be known when an existing clock synchronization system is in an open-loop state, and reduces operating accidents such as invalid event sequence records and even equipment crash caused by wrong time proofreading.
Description
Technical field
The present invention relates to a kind of monitoring method that is applicable to clock synchronous in intelligent substation, belong to intelligent substation technical field.
Background technology
Existing most intelligent substation all designs by unattended, in running, all information all concentrates on dispatching terminal, therefore, it is particularly important that the temporal resolution of whole dispatch automated system just seems, the main determining factor that affects temporal resolution is exactly clock.The event information of high-precise synchronization system is more conducive to accident analysis, fault location and hidden troubles removing.Because the asynchronous meeting of system whole-network clock causes some comparatively special faults, as data and information dropout, SOE event information logical miss, some work station even systemic breakdown that crashes.Current automated system time synchronized system, in open loop situations, lacks feedback and cannot know operating state, produces thus the asynchronous potential safety hazard of bringing of some clocks.Nearest power grid accident also exposes the confusion of the clock inconsistent problem of bringing, especially failure wave-recording, SOE logout, causes carrying out normal accident analysis.
Current automated system time synchronized system is in open loop situations, as shown in Figure 1, lacks feedback and cannot know the urgent demand of operating state, can cause because of to time the mistake sequence of events recording that causes invalid, even cause the interruption of services such as equipment deadlock.
Summary of the invention
The object of this invention is to provide a kind of monitoring method that is applicable to clock synchronous in intelligent substation, to solve the synchronous system of current time in open loop situations, lack feedback and cannot know the problem of operating state, reduce because of to time the mistake sequence of events recording that causes invalid, even cause the interruption of services such as equipment deadlock.
The present invention also provides a kind of monitoring method that is applicable to clock synchronous in intelligent substation for solving the problems of the technologies described above, and this monitoring method comprises the following steps:
1) by process layer devices to time self check communication to the measure and control device of wall;
2) measure and control device by the process layer devices of receiving to time self check information and wall other need to time equipment to time self check communication to station level;
3) station level equipment according to clockwork to time signal to the full station equipment of receiving to time self check information measure and analyze, judge that whether full station clock device normal.
The method also comprise to by time service equipment to time state monitoring, comprise the following steps:
A) state measurement unit while arranging first pair in station level, using this to time state measurement unit as the measurement originating end of measure and control device in wall, to measure and control device to time state measure, with obtain measure and control device to time measured value of state;
B) state measurement unit while arranging second pair in wall, using this to time state measurement unit as the measurement originating end of process layer devices in process layer, to process layer devices to time state measure, with obtain process device to time measured value of state;
C) according to above-mentioned to time measured value of state judge whether to occur abnormal, if occur extremely, report to the police, warning message is transferred to dispatching terminal.
If judging full station clock in described step 3) occurs extremely, carrying out alarm, and warning information being transferred to dispatching terminal.
Mode or calling mode that the self check quantity of state of described equipment state self check data send on adopting initiatively.
In described step a) and step b) to time measured value of state be adopt pingpong theory measure.
Described measurement originating end only self to time when normal, the device measuring data of its management are just effective.
The invention has the beneficial effects as follows: the present invention carries out the monitoring of closed loop by the clock synchronization system to intelligent substation (comprise clockwork and by time service equipment), to station internal clock and being monitored by the state self check information of time service equipment, realize the fast monitored to foreseeable fault, in addition to being monitored by the business datum of the synchronous applications association of time service equipment, with the synchronous state of reflecting time, make to time state can monitor.The invention solves the synchronous system of current time in open loop situations, lack feedback and cannot know the problem of operating state, reduce because of to time the mistake sequence of events recording that causes invalid, even cause the interruption of services such as equipment deadlock.
Accompanying drawing explanation
Fig. 1 is traditional time synchronized system open loop schematic diagram;
Fig. 2 is time synchronized system closed loop schematic diagram of the present invention;
Fig. 3 be in the present invention to time condition monitoring system figure.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
The monitoring method that is applicable to clock synchronous in intelligent substation of the present invention by clock and by time equipment form closed loop, as shown in Figure 2, the state self check information of standing internal clock and all given oneself on initiatively by time service equipment is to clock synchronous administrative unit (also can call), clock synchronous administrative unit realizes being monitored by the business datum of the synchronous applications association of time service equipment simultaneously, with the synchronous state of reflecting time, make to time state can monitor, and monitoring result can on give, thereby include clock synchronization system in Automatic monitoring systems management.
Data Source is divided into two large classes: equipment state self check data and to time state measurement data.To be mainly monitored equipment self (refer to the fault that can judge by means such as the measurements of monitored equipment self based on foreseeable fault to the object of equipment state self check, as: equipment and clock source communicating interrupt, to time abnormal signal etc.) strategy that arranges, the fault point of rapid detection self.To time state measurement be (to refer to the fault that monitored equipment can not judge by means such as the measurements of self from monitored equipment outside to himself unpredictalbe fault, as: the temporal information of monitored bay device is inconsistent with monitoring background system temporal information, but monitored bay device self can not detect to time abnormal conditions occur) produce result detect, the assurance that these two kinds of methods are comparatively complete the Performance And Reliability of time synchronized status monitoring.
Equipment state process of self-test
Equipment state self check be equipment pass through self design active obtaining to time operating state means, its finds fault comparatively fast and directly, but findable problem is subject to the limitation of self check design.Its concrete implementation procedure is:
Process layer devices to time relevant self check information exchange cross process-level network and be transferred to the measure and control device of wall; Measure and control device is received after process layer information, together with wall other need to time equipment to time relevant self check information deliver to station level, simultaneously clockwork is also delivered to station level network by the self check information of himself, by the supervisory control system of station level embedded to time state measurement software to full station equipment to time information measure and analyze; And draw the whether normal conclusion of full station clock device, if having extremely, supervisory control system is direct transferred warning information is transferred to dispatching terminal by alarm.
To time state measurement process
According to multi-zone supervision principle, station level state measurement unit is integrated in monitoring background system, and process layer state measurement unit is integrated in measure and control device.In intelligent substation; measure and control device is the measurement originating end of process layer devices Clock management; and station level to time state measurement unit as wall protection, observing and controlling etc. device measurement originating end; only have measurement originating end (being last layer equipment) self to time when normal, the device measuring data of its management are just effective.
First to measure and control device to time status poll request, utilize classical pingpong theory, obtain between supervisory control system and measure and control device to time whether normal, if now judgement is normal, in like manner utilize this measure and control device realize itself and process layer devices to time condition discrimination, the coupled multiple process layer devices of measure and control device poll obtain to time measured value of state; These measured values are considered as to remote measurement amount, in data, send and should support on out-of-limit to send, on the cycle, send, backstage calling mode, if now system to time state have extremely, still direct transfer to dispatching terminal by supervisory control system alarm.To time state adopt pingpong theory to measure, this measured value directly obtains by measuring after originating end calculates.
By reference to the accompanying drawings the enforcement of patent of the present invention is described above; but patent of the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under the enlightenment of patent of the present invention; not departing from the scope situation that patent aim of the present invention and claim protect, also can make a lot of forms, within these all belong to the protection range of patent of the present invention.
Claims (6)
1. a monitoring method that is applicable to clock synchronous in intelligent substation, is characterized in that, this monitoring method comprises the following steps:
1) by process layer devices to time self check communication to the measure and control device of wall;
2) measure and control device by the process layer devices of receiving to time self check information and wall other need to time equipment to time self check communication to station level;
3) station level equipment according to clockwork to time signal to the full station equipment of receiving to time self check information measure and analyze, judge that whether full station clock device normal.
2. the monitoring method that is applicable to clock synchronous in intelligent substation according to claim 1, is characterized in that, the method also comprise to by time service equipment to time state monitoring, comprise the following steps:
A) state measurement unit while arranging first pair in station level, using this to time state measurement unit as the measurement originating end of measure and control device in wall, to measure and control device to time state measure, with obtain measure and control device to time measured value of state;
B) state measurement unit while arranging second pair in wall, using this to time state measurement unit as the measurement originating end of process layer devices in process layer, to process layer devices to time state measure, with obtain process device to time measured value of state;
C) according to above-mentioned to time measured value of state judge whether to occur abnormal, if occur extremely, report to the police, warning message is transferred to dispatching terminal.
3. the monitoring method that is applicable to clock synchronous in intelligent substation according to claim 1, is characterized in that, occurs extremely, carrying out alarm, and warning information being transferred to dispatching terminal if judge full station clock in described step 3).
4. the monitoring method that is applicable to clock synchronous in intelligent substation according to claim 1 and 2, is characterized in that, mode or calling mode that the self check quantity of state of described equipment state self check data send on adopting initiatively.
5. the monitoring method that is applicable to clock synchronous in intelligent substation according to claim 3, is characterized in that, in described step a) and step b) to time measured value of state be adopt pingpong theory measure.
6. the monitoring method that is applicable to clock synchronous in intelligent substation according to claim 3, is characterized in that, described measurement originating end only self to time when normal, the device measuring data of its management are just effective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410110794.7A CN103888236A (en) | 2014-03-24 | 2014-03-24 | Clock synchronization monitoring method applicable to intelligent substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410110794.7A CN103888236A (en) | 2014-03-24 | 2014-03-24 | Clock synchronization monitoring method applicable to intelligent substation |
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| CN103888236A true CN103888236A (en) | 2014-06-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978155A (en) * | 2016-06-27 | 2016-09-28 | 柳州电器科学研究所有限公司 | 500kV transformer station computer monitoring 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 |
| CN107819537A (en) * | 2017-09-22 | 2018-03-20 | 国电南瑞科技股份有限公司 | It is a kind of based on synchronous closed loop monitoring electric substation automation system pair when method of calibration |
| CN109873693A (en) * | 2019-02-12 | 2019-06-11 | 广东电网有限责任公司 | A kind of substation's clock synchronization situation cognitive method |
| CN112731049A (en) * | 2020-12-08 | 2021-04-30 | 深圳供电局有限公司 | Clock synchronization abnormity monitoring method and device and computer readable storage medium |
| CN114063435A (en) * | 2021-11-17 | 2022-02-18 | 国网四川省电力公司广安供电公司 | Time synchronization instrument, and clock device detection method and system based on time synchronization instrument |
| CN117607545A (en) * | 2024-01-24 | 2024-02-27 | 新风光电子科技股份有限公司 | Communication-free time-sharing round-robin detection method for insulation impedance of multi-machine energy storage converter |
-
2014
- 2014-03-24 CN CN201410110794.7A patent/CN103888236A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978155A (en) * | 2016-06-27 | 2016-09-28 | 柳州电器科学研究所有限公司 | 500kV transformer station computer monitoring 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 |
| CN107819537A (en) * | 2017-09-22 | 2018-03-20 | 国电南瑞科技股份有限公司 | It is a kind of based on synchronous closed loop monitoring electric substation automation system pair when method of calibration |
| CN109873693A (en) * | 2019-02-12 | 2019-06-11 | 广东电网有限责任公司 | A kind of substation's clock synchronization situation cognitive method |
| CN112731049A (en) * | 2020-12-08 | 2021-04-30 | 深圳供电局有限公司 | Clock synchronization abnormity monitoring method and device and computer readable storage medium |
| CN114063435A (en) * | 2021-11-17 | 2022-02-18 | 国网四川省电力公司广安供电公司 | Time synchronization instrument, and clock device detection method and system based on time synchronization instrument |
| CN114063435B (en) * | 2021-11-17 | 2023-02-28 | 国网四川省电力公司广安供电公司 | Time synchronization instrument, and clock device detection method and system based on time synchronization instrument |
| CN117607545A (en) * | 2024-01-24 | 2024-02-27 | 新风光电子科技股份有限公司 | Communication-free time-sharing round-robin detection method for insulation impedance of multi-machine energy storage converter |
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Effective date of registration: 20151012 Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant after: Xuji Electric Co., Ltd. Applicant after: Xuchang Xuji Software Technology Co., Ltd. Applicant after: State Grid Zhejiang Electric Power Company Applicant after: State Grid Corporation of China Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant before: Xuji Electric Co., Ltd. Applicant before: Xuchang Xuji Software Technology Co., Ltd. |
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Application publication date: 20140625 |