CN107425934A - The time synchronism apparatus of intelligent substation on-line monitoring - Google Patents
The time synchronism apparatus of intelligent substation on-line monitoring Download PDFInfo
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- CN107425934A CN107425934A CN201710223825.3A CN201710223825A CN107425934A CN 107425934 A CN107425934 A CN 107425934A CN 201710223825 A CN201710223825 A CN 201710223825A CN 107425934 A CN107425934 A CN 107425934A
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- module
- line monitoring
- monitoring
- time
- intelligent substation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of time synchronism apparatus of intelligent substation on-line monitoring, including synchronisation source input module, CPU processing management module, synchronizing signal output module, normal signal conditioning module, on-line monitoring module, power module, general purpose interface bus and human-computer interaction module；The present invention has the ability that split-second precision signal is provided by time service equipment for transformer station, pass through Network Time Protocol or the GOOSE message of the transmission protocols of DL/T 860 simultaneously, realized by the way of client (management end) and server (monitored end) question and answer, monitored to all clock apparatus in transformer station and by deviation during the fortune pair of time dissemination system and equipment, promote the application of power system time synchronized status monitoring administrative skill, improve the operational reliability of power network, it is high so as to provide a set of monitoring accuracy for intelligent substation time synchronized monitoring management construction, standardization, the low time synchronism apparatus of cost, ensure effectively to play the due effect of on-line monitoring.
Description
Technical field
The present invention relates to the time synchronized dress in intelligent substation field, more particularly to a kind of intelligent substation on-line monitoring
Put.
Background technology
With the height construction and development of intelligent grid, the synchronism of transformer station's clock synchronization system shows in current power network
Must become more and more important, establish all clock apparatus of a set of on-line monitoring and by the time synchronized state of time dissemination system and equipment and pair when
The system of deviation precision is imperative.For this, state adjusts center to issue《State adjusts center on strengthening power system time synchronized
The notice of operational management work》(adjusting from (2013) No. 82), the synchronous operation to electricity grid substation and power plant's clock synchronization system
Management proposes clear and definite job requirement.From the point of view of live practical operation situation, it is on the monitoring system platform run at the scene,
, on-line monitoring be present in the category information of state measurement data and equipment state self-inspection data etc. two when being monitored pair by software upgrading
Precision is not up to standard less than 10ms index, and construction cost is high.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides the time synchronized of intelligent substation on-line monitoring
Device.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of time synchronism apparatus of intelligent substation on-line monitoring, including synchronisation source input module, CPU processing management mould
Block, synchronizing signal output module, normal signal conditioning module, on-line monitoring module, power module, general purpose interface bus and man-machine
Interactive module, the synchronisation source input module handle management module with the CPU by the general purpose interface bus and are unidirectionally electrically connected
Connect, pass through the general-purpose interface between the CPU processing management module, the on-line monitoring module and the human-computer interaction module
The two-way electrical connection of bus, the normal signal conditioning module handle management module by the general purpose interface bus and the CPU
Unidirectional electrical connection, the power module is by the general purpose interface bus to the synchronisation source input module, the CPU processing tubes
Manage module, the synchronizing signal output module, the normal signal conditioning module, the on-line monitoring module and the man-machine friendship
Mutual module for power supply.
Specifically, the synchronisation source input module is used to receive external time reference signal；
The CPU processing management module is used to handle external time reference signal, produces the local zone time base synchronous with UTC
Standard, and output time benchmark and synchronizing signal；The monitoring result of on-line monitoring module is collected, and is uploaded；
The synchronizing signal output module is used to export the synchronizing signal of various electric level interfaces to the protection of intelligent substation
Device, intelligent assembly, fault oscillograph, PMU, measure and control device and combining unit；
The normal signal conditioning module is used to gather protection device and the monitoring signals of intelligent assembly, and is transmitted to
Monitor module on-line；
The on-line monitoring module is used to carry out protection device, fault oscillograph, PMU, measure and control device and combining unit
On-line monitoring；
The human-computer interaction module is used to show normality interface information and menu configuration.
The beneficial effects of the present invention are：
The time synchronism apparatus of intelligent substation on-line monitoring of the present invention has provides height for transformer station by time service equipment
The ability of Precision Time signal, while by Network Time Protocol or the GOOSE message of the transmission protocols of DL/T 860, using client (pipe
Reason end) and the mode of server (monitored hold) question and answer realize, and to all clock apparatus in transformer station and by time dissemination system set
Deviation monitors during standby fortune pair, promotes the application of power system time synchronized status monitoring administrative skill, improves the operation of power network
Reliability, so as to for intelligent substation time synchronized monitoring management construction provides a set of monitoring accuracy height, standardize, cost it is low
Time synchronism apparatus, it is ensured that effectively play and monitor due effect on-line.
Brief description of the drawings
Fig. 1 is the structural representation of the time synchronism apparatus of intelligent substation on-line monitoring of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of time synchronism apparatus of intelligent substation on-line monitoring of the present invention, including synchronisation source input mould
It is block, CPU processing management module, synchronizing signal output module, normal signal conditioning module, on-line monitoring module, power module, logical
It is unidirectional by general purpose interface bus and CPU processing management module with interface bus and human-computer interaction module, synchronisation source input module
Electrical connection, it is electrically connected between CPU processing management module, on-line monitoring module and human-computer interaction module by the way that general purpose interface bus is two-way
Connect, normal signal conditioning module handles management module with CPU by general purpose interface bus and unidirectionally electrically connected, and power module passes through logical
With interface bus to synchronisation source input module, CPU handle management module, synchronizing signal output module, normal signal conditioning module,
Monitor module and human-computer interaction module power supply on-line.
Synchronisation source input module is external time reference signal (source, the wired IRIG-B when source, GPS during the Big Dipper received
Source when Shi Yuan, PTP), signal condition is carried out, internal level signal is converted to, CPU processing tubes is sent to by general purpose interface bus
Manage module.
CPU processing management module is processing external time reference signal (during the Big Dipper when source, GPS when source, wired IRIG-B
Source when source, PTP), local crystal oscillator is tamed, produces the local time reference synchronous with UTC, output time benchmark and various
Synchronizing signal, each synchronizing signal output module and on-line monitoring module of the present apparatus are shared with by general purpose interface bus, and
It is connected by the general purpose interface bus of general purpose interface bus with on-line monitoring module, collection management monitors the prison of module monitors on-line
Result is surveyed, MMS communication interfaces and configuration debugging interface are externally provided, monitoring result is uploaded to by monitoring by MMS communication interfaces
System or background system, by configuring the configuration of debugging interface realization device parameter, monitoring parameters configure.
Synchronizing signal output module is to obtain the various synchronizing signals of 5V level by general purpose interface bus, according to external interface
Mode (optical fiber interface, RS485 interfaces, RS232 interface, Transistor-Transistor Logic level, null interface etc.) realizes level conversion and modulate circuit work(
Can, export the synchronizing signals of various electric level interfaces, to the protection device of intelligent substation, intelligent assembly, fault oscillograph, PMU,
Measure and control device and combining unit；
Normal signal conditioning module is display various normal signal Input Monitor Connector interface (optical fiber interface, RS485 interfaces, TTL
Level, null interface etc.) level conversion, after being converted to unified Transistor-Transistor Logic level signal, pass through the general-purpose interface of general purpose interface bus
Bus is transmitted to on-line monitoring module.
On-line monitoring module need to be realized to time synchronism apparatus, by the on-line monitoring of time dissemination system and equipment, that is, protects
Device, fault oscillograph, PMU, measure and control device and combining unit.
Human-computer interaction module is used to show normality interface information and menu configuration, and normality interface information includes time-division date
Second, time reference, satellite number, master slave mode etc., menu configuration includes unit state, parameter setting, log query, dispatch from the factory letter
Breath etc..
Power module is dual-power module, two sets of power modules stand-by heat each other, each accessible alternating current-direct current 220V power supplys,
5V power supplys are converted to, motherboard realizes two-way 5V power supply switch circuits, and is each of whole device by the power bus of motherboard
Functional module plate provides work power supply.
Its operation principle is as follows：
Normal signal conditioning module receives the protection device and intelligent assembly of intelligent substation by optical fiber/RS485/TTL
The conventional synchronous signal (pulse, IRIG-B, SOE) of transmission, and carried out firmly by the fpga chip in normal signal conditioning module
Decoding obtains and the degree of accuracy of record normal signal and temporal information.
Monitor the monitoring of the GOOS messages of the ARM chip packages Network Time Protocol or the transmission protocols of DL/T 860 in module on-line
Request command message, and the network interface extended out by monitoring the fpga chip of module on-line is sent, and accurate transmission markers is recorded,
The network interface similarly extended out by monitoring the fpga chip of module on-line receives Network Time Protocol or the GOOSE of DL/T860 transmission protocols is reported
Monitoring the corresponding command message of text, and accurate reception markers is recorded, the ARM chips for monitoring module on-line are completed to monitoring signals
Processing and analysis, and simultaneously by monitoring result by all purpose instrument bus of motherboard be aggregated into CPU handle management module.
With advantages below：
1st, monitoring accuracy is high
The time for realizing hardware decoding and hardware by the fpga chip of modules marks, with 125MHz clock frequency
Rate carries out timing, and minimum time unit can reach 8ns, substantially increase the precision of on-line monitoring；
2nd, handle to specification, sharing height
By MMS messages, GOOSE message and the Network Time Protocol of the transmission protocols of DL/T 860, using management end (present apparatus) and
The calculating of deviation during monitored end (intelligent substation) interrogation reply system realization pair, overcomes Monitoring Data and shares and be uniformly processed tired
The problem of difficult；
3rd, apparatus integration, cost it is low,
Device uses bus-organization, it is possible to achieve plug and play, module number can freely be carried out according to the needs at scene
Extension, has reached apparatus integration, has reduced the effect of cost.
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (2)
- A kind of 1. time synchronism apparatus of intelligent substation on-line monitoring, it is characterised in that：Including synchronisation source input module, CPU Handle management module, synchronizing signal output module, normal signal conditioning module, on-line monitoring module, power module, general-purpose interface Bus and human-computer interaction module, the synchronisation source input module pass through the general purpose interface bus and CPU processing management moulds Block unidirectionally electrically connects, and passes through institute between the CPU processing management module, the on-line monitoring module and the human-computer interaction module State the two-way electrical connection of general purpose interface bus, the normal signal conditioning module by the general purpose interface bus and the CPU at Reason management module unidirectionally electrically connects, and the power module is by the general purpose interface bus to the synchronisation source input module, institute State CPU processing management module, the synchronizing signal output module, the normal signal conditioning module, the on-line monitoring module Powered with the human-computer interaction module.
- 2. the time synchronism apparatus of intelligent substation on-line monitoring according to claim 1, it is characterised in that：The synchronization Source input module is used to receive external time reference signal；The CPU processing management module is used to handle external time reference signal, produces the local time reference synchronous with UTC, And output time benchmark and synchronizing signal；The monitoring result of on-line monitoring module is collected, and is uploaded；The synchronizing signal output module be used for export the synchronizing signal of various electric level interfaces to the protection device of intelligent substation, Intelligent assembly, fault oscillograph, PMU, measure and control device and combining unit；The normal signal conditioning module is used to gather protection device and the monitoring signals of intelligent assembly, and is transmitted to online Monitoring modular；The on-line monitoring module is used to carry out online protection device, fault oscillograph, PMU, measure and control device and combining unit Monitoring；The human-computer interaction module is used to show normality interface information and menu configuration.
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| CN201710223825.3A CN107425934B (en) | 2017-04-07 | 2017-04-07 | Time synchronization device for intelligent substation on-line monitoring |
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| CN201710223825.3A CN107425934B (en) | 2017-04-07 | 2017-04-07 | Time synchronization device for intelligent substation on-line monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541846A (en) * | 2021-09-17 | 2021-10-22 | 电信科学技术第五研究所有限公司 | Method and system for monitoring network time synchronization performance |
| CN113922911A (en) * | 2021-10-29 | 2022-01-11 | 中国电力科学研究院有限公司 | Intelligent substation time monitoring method, system, equipment and storage medium |
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