CN205610654U - Clock device based on SDH network E1 passageway fault monitoring - Google Patents

Clock device based on SDH network E1 passageway fault monitoring Download PDF

Info

Publication number
CN205610654U
CN205610654U CN201620418277.0U CN201620418277U CN205610654U CN 205610654 U CN205610654 U CN 205610654U CN 201620418277 U CN201620418277 U CN 201620418277U CN 205610654 U CN205610654 U CN 205610654U
Authority
CN
China
Prior art keywords
clock
time
monitoring
signal
sdh network
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.)
Active
Application number
CN201620418277.0U
Other languages
Chinese (zh)
Inventor
许爱东
陈波
陈浩敏
郭晓斌
蒋愈勇
姚浩
习伟
蔡田田
王建邦
朱海龙
熊汉
杨乐
陈力
周柯
徐长宝
王宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHAN ZHONGYUAN HUADIAN SCIENCE & TECHNOLOGY Co.,Ltd.
China Southern Power Grid Co Ltd
Electric Power Research Institute of Guangxi Power Grid Co Ltd
Electric Power Research Institute of Guizhou Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
Original Assignee
Wuhan Zhongyuan Huadian Science & Technology Co Ltd
China Southern Power Grid Co Ltd
Electric Power Research Institute of Guangxi Power Grid Co Ltd
Electric Power Research Institute of Guizhou Power Grid Co Ltd
Power Grid Technology Research Center of China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Zhongyuan Huadian Science & Technology Co Ltd, China Southern Power Grid Co Ltd, Electric Power Research Institute of Guangxi Power Grid Co Ltd, Electric Power Research Institute of Guizhou Power Grid Co Ltd, Power Grid Technology Research Center of China Southern Power Grid Co Ltd, Research Institute of Southern Power Grid Co Ltd filed Critical Wuhan Zhongyuan Huadian Science & Technology Co Ltd
Priority to CN201620418277.0U priority Critical patent/CN205610654U/en
Application granted granted Critical
Publication of CN205610654U publication Critical patent/CN205610654U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a clock device based on SDH network E1 passageway fault monitoring, including connecting synchronized clock, receive outside time base mark signal and frequency base mark signal's input unit, connect synchronized clock, at real -time supervision and the synchronization unit who carries out taming inside local clock according to time base mark signal and frequency base mark signal to the data signal of E1 passageway when statistical analysis and clock synchronization signal source are selected, and connection synchronized clock, the time signal's of time service synchronous output unit is carried out each clock of intelligent substation according to the clock data output of inside clock. The utility model discloses a device has monitoring and analysis function to SDH network 2Mbits frequency, in construction electric wire netting time integrated system, when providing high accuracy standard time for electric wire netting secondary system, intelligent substation's reliability has also been improved.

Description

Clock apparatus based on the monitoring of SDH network E1 channel failure
Technical field
This utility model relates to the intelligent substation clock field of synchronization of power system, particularly relates to a kind of electricity The clock apparatus based on the monitoring of SDH network E1 channel failure of Force system intelligent substation.
Background technology
Along with the popularization construction of intelligent grid, clock synchronization system is had higher requirement by transformer station.High Precision, highly reliable unified time synchronized are to ensure that safe operation of power system, improve operation power management water The important leverage of gentle accident analysis ability.The emphasis of time synchronized is not only time dissemination system and satellite time Synchronization, should be also the uniformity of time synchronized and reliability in station, or even the whole network time synchronized.
Present stage electrical grid transmission resource is mainly with SDH (Synchronous Digital Hierarchy, synchronous digital System) network is main, plant stand E1 (30 tunnel pulse-code modulation PCM, wherein PCM refers to pulse code modulation: Pulse Code Modulation) channel resource enrich.Realize time synchronized by SDH network E1 link to pass Send, for solving power communication time synchronized networking, it is achieved reference time signal the whole network covers, change at present Dependence for satellite time service system, it is to avoid some defects that wireless time service is intrinsic, has important reality Meaning, also solving part transformer station cannot install the Practical Project problem of satellite antenna simultaneously, has wide Using value and promotion prospect.
During realizing, inventor finds that in conventional art, at least there are the following problems: currently with SDH The unified whole power grid time of communication network still has some problems to solve.Strengthen SDH network E1 passage The monitoring capability of performance, the analysis E1 passage fault that may be present of real-time online, for building power grid time Integrated system, provides the High-precision standard time to seem most important for electric grid secondary system.General Promotion equipment Intelligent level, popularization and application smart machine and technology, it is achieved power grid security on-line early warning and clockwork can Imperative by running.
Utility model content
Based on this, it is necessary to in conventional art to the monitoring of SDH network E1 channel performance with analyze energy Power is low, the problem of poor reliability, it is provided that a kind of clock apparatus based on the monitoring of SDH network E1 channel failure.
To achieve these goals, the embodiment of technical solutions of the utility model is:
Provide a kind of clock apparatus based on the monitoring of SDH network E1 channel failure, including when connecting synchronization Clock, receive outside time reference signal and the input block of reference frequency signal, connection synchronised clock, According to time reference signal and reference frequency signal the data signal of E1 passage carried out statistical analysis and clock with Tame monitoring and the lock unit in real time of inside local clock while step signal source selection, and connect synchronization Clock, export clock each to intelligent substation according to the clock data of inside local clock and carry out the time of time service The synchronism output unit of signal.
Technique scheme has the advantages that
The clock apparatus that this utility model is monitored based on SDH network E1 channel failure, to SDH network E1 2Mbits operation characteristic carries out on-line monitoring, evaluates accuracy and the stability of E1 channel frequence, and then judges Whether follow the tracks of this 2M frequency and carry out early warning;Many reference sources are carried out time and frequency quality analysis, selects height Quality references source, reaches the time unification of device of the present utility model and the whole network.Device of the present utility model has There are the monitoring to SDH network 2Mbits frequency and analytic function;Building power grid time integrated system, for electricity While net electrical secondary system provides the High-precision standard time, also improve the reliability of intelligent substation.
Accompanying drawing explanation
Fig. 1 is the clock apparatus embodiment 1 that this utility model is monitored based on SDH network E1 channel failure Structural representation;
Fig. 2 is the clock apparatus embodiment 2 that this utility model is monitored based on SDH network E1 channel failure Structural representation;
Fig. 3 is that the clock apparatus one that this utility model is monitored based on SDH network E1 channel failure is embodied as The structural representation of example;
Fig. 4 is that the clock apparatus one that this utility model is monitored based on SDH network E1 channel failure is embodied as The functional schematic of example.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is carried out more comprehensively Description.Accompanying drawing gives first-selected embodiment of the present utility model.But, this utility model can be to be permitted The most different forms realizes, however it is not limited to embodiment described herein.On the contrary, provide these to implement The purpose of example is to make to disclosure of the present utility model more thoroughly comprehensively.
It should be noted that when an element is considered as " connection " another element, and it can be to be directly connected to To another element and in combination be integrated, or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein and scientific terminology with belong to of the present utility model The implication that those skilled in the art are generally understood that is identical.Institute in description of the present utility model herein The term used is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting this utility model. Term as used herein " and/or " include the arbitrary and all of of one or more relevant Listed Items Combination.
The clock apparatus embodiment 1 that this utility model is monitored based on SDH network E1 channel failure:
Low with analysis ability to the monitoring of SDH network E1 channel performance in order to solve conventional art, reliability The problem of difference, this utility model provides a kind of clock apparatus based on the monitoring of SDH network E1 channel failure Embodiment 1;Fig. 1 is the clock apparatus embodiment that this utility model is monitored based on SDH network E1 channel failure The structural representation of 1;As it is shown in figure 1, the time base outside can including connecting synchronised clock 100, receiving The input block 110 of calibration signal and reference frequency signal, connects synchronised clock 100, is believing according to time reference Number and reference frequency signal the data signal of E1 passage is carried out what statistical analysis and clock sync signal source selected Tame monitoring and the lock unit 120 in real time of inside local clock simultaneously, and connect synchronised clock 100, root Export clock each to intelligent substation according to the clock data of inside local clock and carry out time signal same of time service Step output unit 130.
In a specific embodiment, synchronism output unit 130 can include according to monitoring in real time and synchronize The result of the data signal that unit 120 monitors E1 passage in real time carries out the alarm module 132 of corresponding early warning.
In a specific embodiment, alarm module 132 can include display lamp alarm module and output to Substation secondary device carries out the relay alarm module of the relay warning signal of fault location.
In a specific embodiment, monitoring and lock unit 120 can include the number to E1 passage in real time The number of it is believed that carries out the all-digital phase-locked loop of the clock frequency of the amplitude limiter of amplitude limit and the data signal of recovery E1 passage.
In a specific embodiment, monitoring and lock unit 120 can also include E1 passage in real time Data signal carries out the E1 semiconductor chip of the 2MBITS of PPS recovery.
In a specific embodiment, monitoring and lock unit 120 can also include according to statistical in real time The result that analysis and clock sync signal source select tames the clock synchronization module 122 of inside local clock.
In a specific embodiment, this utility model based on SDH network E1 channel failure monitor time Clock device embodiment 1 can also include the man-machine interface 140 connecting synchronised clock.
In a specific embodiment, this utility model based on SDH network E1 channel failure monitor time Clock device embodiment 1 can also include connection synchronised clock, carry out the power subsystem 150 of power of alterating and direct current input.
The clock apparatus that this utility model is monitored based on SDH network E1 channel failure, to SDH network E1 2Mbits operation characteristic carries out on-line monitoring, evaluates accuracy and the stability of E1 channel frequence, and then judges Whether follow the tracks of this 2M frequency and carry out early warning;Many reference sources are carried out time and frequency quality analysis, selects height Quality references source, reaches the time unification of device of the present utility model and the whole network.Device of the present utility model has There are the monitoring to SDH network 2Mbits frequency and analytic function;Building power grid time integrated system, for While electric grid secondary system provides the High-precision standard time, also improve the reliability of intelligent substation.
The clock apparatus embodiment 2 that this utility model is monitored based on SDH network E1 channel failure:
In order to further illustrate the technical solution of the utility model, simultaneously in order to solve conventional art to SDH net The monitoring of network E1 channel performance is low with analysis ability, the problem of poor reliability, and this utility model additionally provides one Plant clock apparatus embodiment 2 based on the monitoring of SDH network E1 channel failure;Fig. 2 be this utility model based on The structural representation of the clock apparatus embodiment 2 of SDH network E1 channel failure monitoring;
As in figure 2 it is shown, device of the present utility model can use Modular Structure Design, multiple plug-in unit can be passed through Access on-the-spot GPS (Global Positioning System: global positioning system)/BD (China's big-dipper satellite Navigation system: BeiDou Navigation Satellite System) satellite-signal, pulse signal, serial ports message, The various types of signal etc. such as IRIG-B (InterRange Instrumentation Group) code, network message, E1; This utility model is optional receives E1 passage 2Mbits (2Mbits signal, i.e. 2 megabits signals), GPS/BD Frequency signal on the basis of satellite-signal, exterior I RIG-B code, network time message, serial ports message etc., with Time signal on the basis of GPS/BD satellite-signal, exterior I RIG-B code, network message, serial ports message etc.. Reference time signal or other reference source is unified by taming accurately tracking SDH communication network;Monitoring in real time The accuracy of E1 channel frequence and stability, and then determine whether to carry out E1 passage 2M frequency anomaly early warning.
Specific implementation is as follows:
(1) input block;
Access on-the-spot GPS/BD satellite-signal, pulse signal, serial ports message, IRIG-B code, NTP (net Network time protocol: Network Time Protocol) network message, E1 2Mbits and the PTP of carrying thereof The signals such as (Precision Time Protocol: accurate clock synchronization protocol) message, analytic message is also analyzed each Plant the availability of signal, available reference source is added up.
(2) real-time monitoring and lock unit;
Clockwork is by SDH/MSTP (Multi-Service Transfer Platform: many industry based on SDH Business delivery platform) the 2Mbits data signal that comes of opposite end after Slicer (amplitude limiter) amplitude limit by inside DPLL (Digital Phase Locked Loop) recovers clock frequency, and 2Mbits signal is carried out message analysis, If alarm flag bit set, then judge that this reference source lost efficacy;Otherwise E1 2Mbits is carried out the TDEV (time Deviation) and MTIE (maximum time interval deviation) statistical analysis, it is judged that G.811 whether it meet ITU-T About power train in (the Timing characteristics reference standard of primary reference clock) and ITU-T G.823 (communication standard) The requirement of system Secondary Clock, if meeting, then judges that reference source is effective, otherwise judges that this reference source is invalid;Its Its reference source then judges according to flag bit.Analyze and accessed reference source time or frequency quality, join Examine the selection in source, and local clock is tamed.
(3) synchronism output and Alarm Unit;
After device locking, export each clock interface signal by output module;2Mbits signal is carried out message Analyze, if alarm flag bit set, then carry out E1 2Mbits frequency anomaly and report to the police;Otherwise, to E1 2Mbits Carry out TDEV and MTIE statistical analysis, it is judged that its whether meet ITU-T G.811 with ITU-T G.823 in About the requirement of power system Secondary Clock, if being unsatisfactory for, then carry out E1 2Mbits frequency anomaly and report to the police.
(4) power subsystem;
Power module realizes with card form, and power supply input range width and AC and DC are general, and power supply inputs Scope: 110V-220V AC/DC (ac/dc).
Fig. 3 is that the clock apparatus one that this utility model is monitored based on SDH network E1 channel failure is embodied as The structural representation of example;Wherein, TTL output circuit also refers in figure 3: Transistor-Transistor is patrolled Collect circuit (Transister-Transister-Logic);Local Bus also refers to cpu bus;PCIe can To refer to: PCI-Express, the most up-to-date bus and interface standard.Fig. 4 is that this utility model is based on SDH The functional schematic of clock apparatus one specific embodiment of network E1 channel failure monitoring.
As shown in Figure 3, Figure 4, device of the present utility model can include that access unit, E1 2M frequency are real-time Monitor and lock unit, synchronism output and Alarm Unit;Wherein, when access unit can be used for each outside access Between basis reference, serial ports message, IRIG-B code message, network message etc. are detected, unpack and point Analyse its availability, U.S. letter quasiconductor DS26503LN E1 chip 2Mbits can also be used simultaneously to carry out PPS (packet is per second) recovers;Monitor in real time and lock unit carries out TDEV to E1 routing restoration frequency out And MTIE analyzes, it is judged that whether it meets intelligent substation respective level timing reference input performance requirement.Real Time monitor and lock unit also can carry out clock sync signal multi-source selection, select satisfactory frequency signal And time signal, tame this utility model internal clocking;Synchronism output and Alarm Unit export letter of various times Number to other intelligent substation equipment time service.Real-time always according to E1 2M frequency of synchronism output and Alarm Unit Monitoring result carries out corresponding early warning, wants when the respective performances index of E1 2M frequency meets intelligent substation index When asking, clock prioritizing selection 2M frequency is frequency reference source, and the PTP time selecting E1 to be carried is the time Reference source carries out clock synchronization, thus reaches the time unification of the whole network.When the respective performances of E1 2M frequency refers to When mark crosses the border unavailable, synchronism output and Alarm Unit will carry out display lamp alarm and relay alarm, output Relay warning signal is to substation secondary device, in order to above-mentioned substation secondary device carries out fault location And diagnosis.
The clock apparatus that this utility model is monitored based on SDH network E1 channel failure, to SDH network E1 2Mbits operation characteristic carries out on-line monitoring, evaluates accuracy and the stability of E1 channel frequence, and then judges Whether follow the tracks of this 2M frequency and carry out early warning;Many reference sources are carried out time and frequency quality analysis, selects height Quality references source, reaches the time unification of device of the present utility model and the whole network.Device of the present utility model has There are the monitoring to SDH network 2Mbits frequency and analytic function;Building power grid time integrated system, for electricity While net electrical secondary system provides the High-precision standard time, also improve the reliability of intelligent substation.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special The protection domain of profit should be as the criterion with claims.

Claims (8)

1. a clock apparatus based on the monitoring of SDH network E1 channel failure, it is characterized in that, including connecting synchronised clock, time reference signal outside Jie Shouing and the input block of reference frequency signal, connect described synchronised clock, monitoring and the lock unit in real time of inside local clock is tamed while the data signal of E1 passage being carried out statistical analysis and the selection of clock sync signal source according to described time reference signal and described reference frequency signal, and connect described synchronised clock, clock data according to described inside local clock exports the synchronism output unit that clock each to intelligent substation carries out the time signal of time service.
Clock apparatus based on the monitoring of SDH network E1 channel failure the most according to claim 1, it is characterized in that, described synchronism output unit includes that the result of the data signal monitoring described E1 passage in real time according to described real-time monitoring and lock unit carries out the alarm module of corresponding early warning.
Clock apparatus based on the monitoring of SDH network E1 channel failure the most according to claim 2, it is characterized in that, described alarm module includes that display lamp alarm module and output carry out the relay alarm module of the relay warning signal of fault location to substation secondary device.
Clock apparatus based on the monitoring of SDH network E1 channel failure the most according to claim 1, it is characterized in that, described real-time monitoring and lock unit include the all-digital phase-locked loop of the clock frequency of the data signal of amplitude limiter and the described E1 passage of recovery that the data signal of described E1 passage carries out amplitude limit.
Clock apparatus based on the monitoring of SDH network E1 channel failure the most according to claim 4, it is characterised in that described real-time monitoring and lock unit also include the E1 semiconductor chip that the data signal of described E1 passage carries out the 2MBITS of PPS recovery.
Clock apparatus based on the monitoring of SDH network E1 channel failure the most according to claim 4, it is characterized in that, described real-time monitoring and lock unit also include that the result selected according to described statistical analysis and described clock sync signal source tames the clock synchronization module of described inside local clock.
7. according to the clock apparatus based on the monitoring of SDH network E1 channel failure described in claim 1 to 6 any one, it is characterised in that also include the man-machine interface connecting described synchronised clock.
8. according to the clock apparatus based on the monitoring of SDH network E1 channel failure described in claim 1 to 6 any one, it is characterised in that also include connecting described synchronised clock, carry out the power subsystem of power of alterating and direct current input.
CN201620418277.0U 2016-05-09 2016-05-09 Clock device based on SDH network E1 passageway fault monitoring Active CN205610654U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620418277.0U CN205610654U (en) 2016-05-09 2016-05-09 Clock device based on SDH network E1 passageway fault monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620418277.0U CN205610654U (en) 2016-05-09 2016-05-09 Clock device based on SDH network E1 passageway fault monitoring

Publications (1)

Publication Number Publication Date
CN205610654U true CN205610654U (en) 2016-09-28

Family

ID=56966855

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620418277.0U Active CN205610654U (en) 2016-05-09 2016-05-09 Clock device based on SDH network E1 passageway fault monitoring

Country Status (1)

Country Link
CN (1) CN205610654U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448110A (en) * 2016-10-26 2017-02-22 南方电网科学研究院有限责任公司 Beidou satellite-based automatic-measurement data acquisition system and method
CN106788851A (en) * 2017-01-10 2017-05-31 国家电网公司 The alarm method and device of clock failure
CN109412738A (en) * 2018-11-05 2019-03-01 国网湖北省电力有限公司电力科学研究院 Time synchronism equipment detection method based on the emulation of satellite time transfer module output signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448110A (en) * 2016-10-26 2017-02-22 南方电网科学研究院有限责任公司 Beidou satellite-based automatic-measurement data acquisition system and method
CN106788851A (en) * 2017-01-10 2017-05-31 国家电网公司 The alarm method and device of clock failure
CN109412738A (en) * 2018-11-05 2019-03-01 国网湖北省电力有限公司电力科学研究院 Time synchronism equipment detection method based on the emulation of satellite time transfer module output signal

Similar Documents

Publication Publication Date Title
CN102055544B (en) System and method for synchronously monitoring secondary equipment time of power supply system
CN204886410U (en) Secondary equipment state monitoring system based on intelligent substation
CN205610654U (en) Clock device based on SDH network E1 passageway fault monitoring
CN103442312B (en) Intelligent distribution network clock synchronization system based on PTN+EPON communication system and method
CN104394030B (en) The synchronization accuracy monitoring system of power equipment time synchronism apparatus
CN106547240B (en) A kind of port sample rate can separate configurations site acquisition and control public terminals and method
CN103166750B (en) Synchronizing clock time source collocation method and device
CN102315985B (en) Time synchronization precision test method for intelligent device adopting IEEE1588 protocols
CN104301137A (en) Method and system for analyzing influences of electric power communication faults on services
CN106451763B (en) A kind of intelligent substation station level bus network system without global synchronization system
CN105785144B (en) A kind of whole station detecting system of wireless distributed substation's electrical quantity and method
CN109088400B (en) Distributed protection method and system
CN103856360A (en) Method and device for synchronization link fault detection
CN104038383A (en) Switch based process level network message analysis method
CN207650573U (en) A kind of precise synchronization system based on multi-source time service
CN106254022A (en) Time supervision based on clock synchronization apparatus and time delay query software system platform
CN110943881A (en) Test system and method based on in-situ protection industrial debugging
CN105071535B (en) A kind of the time synchronization management system and implementation method of network system
CN105763310A (en) Monitoring method and apparatus of power grid time frequency signals
CN110798276A (en) Time synchronization method and system for SDN (software defined network) of intelligent substation
Leelaruji et al. State-of-the-art in the industrial implementation of protective relay functions, communication mechanism and synchronized phasor capabilities for electric power systems protection
CN106647227A (en) Precision monitoring system for time synchronization of power equipment
CN203423769U (en) Time synchronization system for intelligent power distribution network based on PTN+EPON communication system
CN103905177B (en) A kind of sampled value Transmission system and transmission method applied to wide area protection
De Dominicis et al. Integration of existing IEC61850-based SAS within new high-availability architectures

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20210805

Address after: 510663 3 building, 3, 4, 5 and J1 building, 11 building, No. 11, Ke Xiang Road, Luogang District Science City, Guangzhou, Guangdong.

Patentee after: China Southern Power Grid Research Institute Co.,Ltd.

Patentee after: CHINA SOUTHERN POWER GRID Co.,Ltd.

Patentee after: WUHAN ZHONGYUAN HUADIAN SCIENCE & TECHNOLOGY Co.,Ltd.

Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGXI POWER GRID Co.,Ltd.

Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd.

Address before: 510080 water Donggang 8, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong.

Patentee before: CSG POWER GRID TECHNOLOGY RESEARCH CENTER

Patentee before: China Southern Power Grid Research Institute Co.,Ltd.

Patentee before: CHINA SOUTHERN POWER GRID Co.,Ltd.

Patentee before: WUHAN ZHONGYUAN HUADIAN SCIENCE & TECHNOLOGY Co.,Ltd.

Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGXI POWER GRID Co.,Ltd.

Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd.

TR01 Transfer of patent right