CN110429707A - A kind of distribution feeder automation protection intelligent regulator platform - Google Patents
A kind of distribution feeder automation protection intelligent regulator platform Download PDFInfo
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- CN110429707A CN110429707A CN201910493044.5A CN201910493044A CN110429707A CN 110429707 A CN110429707 A CN 110429707A CN 201910493044 A CN201910493044 A CN 201910493044A CN 110429707 A CN110429707 A CN 110429707A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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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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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The embodiment of the invention discloses a kind of distributed feeder automations to protect intelligent regulator platform, master device is managed including power distribution network, the intelligent distributed protection terminal of power distribution network and communication network composition, the communication network includes wireline communication network, wireless 4G communication network and double net switching modules, it is provided in the intelligent distributed protection terminal of power distribution network and is distributed protective module on the spot, topology adaptation module is provided in the power distribution network management master device, two-way authentication hardware encryption module is provided in the power distribution network management master device and the intelligent distributed protection terminal of power distribution network, the communication between the intelligent distributed protection terminal of power distribution network and power distribution network management master device is realized using wireline communication network and wireless 4G communication network, when being debugged, the personnel amount requirement of debugging can be reduced, it is carried out by single group personnel remote Journey debugging, long-range calling downloading definite value and testing scheme, and realize that progress chasing and debugging result are analyzed.
Description
Technical field
The present invention relates to modeling techniques fields more particularly to a kind of distributed feeder automation to protect intelligent regulator
Platform.
Background technique
Intelligent distribution network is directly facing user, is the important component of smart grid.The construction object of intelligent distribution network
It is to guarantee fault self-recovery, influence of the distribution network failure to user can be reduced to the maximum extent, shorten power off time, guarantees power supply
Quality, improves Operation of Electric Systems efficiency and renewable energy receives ability.
Currently, there are two types of distributed feeder automation protective debugging methods:
One, single place distribution feeder automation protective debugging.This adjustment method has the following problems: 1. can only
Protection software debugging is carried out, more place distributed communication function debuggings can not be carried out；2. it is synchronous to be unable to control debugging instrument analog quantity
Output.
Two, more place distribution feeder automation protective debuggings of GPS are utilized.This adjustment method has the following problems:
1. needing in the configuration personnel's cooperation of each test point, personnel amount requires high；2. needing each test point cooperation intercom or shifting
Mobile phone carrys out trace debug progress, is easy to be influenced by site environment；3. for the data of commissioning content can not real-time monitoring, it is right
Test result is analyzed.
Summary of the invention
The embodiment of the invention discloses a kind of distributed feeder automations to protect intelligent regulator platform, utilizes wire communication
Network and wireless 4G communication network are realized logical between the intelligent distributed protection terminal of power distribution network and power distribution network management master device
News realize data interaction and the perception of distributed terminal status remote between the more more places of debugging instrument, to solve in the prior art
Personnel amount requires height, needs each test point cooperation intercom or mobile phone to carry out trace debug progress, is easy by site environment
Influence and for the data of commissioning content can not real-time monitoring the problem of.
The embodiment of the invention provides a kind of distributed feeder automations to protect intelligent regulator platform, including distribution network management
Master device, the intelligent distributed protection terminal of power distribution network and communication network composition are managed, the communication network includes wire net
Network, wireless 4G communication network and double net switching modules；
It is provided in the intelligent distributed protection terminal of power distribution network and is distributed protective module on the spot, the power distribution network management
Topology adaptation module, the power distribution network management master device and the intelligent distributed protection of power distribution network are provided in master device
Two-way authentication hardware encryption module is provided in terminal.
Optionally, the protective module of distribution on the spot includes two DSP protective plug-in units, and the DSP protective plug-in unit passes through difference
Dynamic protection realizes fault location, isolated fault and starts feeder means and is overlapped.
Optionally, DSP protective plug-in unit described in two respectively corresponds cable data source and wireless data source and executes
Differential protection strategy, when two class data sources are intact, only a set of Preservation tactics are in operating status, another set of protection plan
It is slightly spare, when one of two class data sources go wrong, then corresponds to differential protection logic and make invalidation.
Optionally, described to be distributed protective module on the spot, it further include that distributed differential protection module, simple bus are poor on the spot
Dynamic protective module and Zero sequence current differential protection module and on the spot the coincidence automatic feed line module of formula.
Optionally, the simple bus differential protecting module is adopted to identify ring network cabinet bus-bar fault, charge circuit failure
Collection looped network cabinet wire electric current gets in touch with out each branch over current fault signal of line current and substation, completes simple bus differential protection, letter
After easy bus differential protection starts, when not receiving charge circuit over current fault block signal, it is identified as bus-bar fault, the substation is isolated
On all switches；When receiving charge circuit over current fault block signal, it is identified as charge circuit failure, only isolated fault
Charge circuit switch.
Optionally, the Zero sequence current differential protection module, city 10kV power distribution network, which has, to be connect using neutral point through small resistance
Ground mode, ring network cabinet CT usually press AC0 configuration, and route zero-sequence current is derived from external zero sequence CT, and no-load voltage ratio is separately provided, zero sequence electricity
The external zero-sequence current that differential protection obtains route both ends is flowed, differential differentiation is carried out, guarantees route B phase fault, single-phase earthing event
Hinder reliable location and isolation.
Optionally, the topology adaptation module, after primary system interruption maintenance, one-shot change, FA system occur for system
The automatic detection variation of system, and online updating topological relation.
Optionally, the two-way authentication hardware encryption module realizes distribution certainly using two-way authentication hardware-based cryptographic
Safety, confidentiality and the non-repudiation of dynamicization information service.
Optionally, the two-way authentication hardware encryption module, including two-shipper isolation module, tetra- layers of isolation module of TCP and electricity
104 communication protocol of power checks module.
Optionally, double net switching modules, by signal monitoring course cycles in dsp board inquire clock synchronization signal with
And receive data quality it is whether correct, if one of communication mode is incorrect, be immediately switched to another communication mould
Formula.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
(1) present invention realizes the intelligent distributed protection of power distribution network eventually using wireline communication network and wireless 4G communication network
Hold the communication between power distribution network management master device, realize more place distributed communications, realize the more more places of debugging instrument it
Between data interaction, realize that the intelligent distributed SOT state of termination remotely perceives.When being debugged, without matching in each test point
Personnel's cooperation is set, the personnel amount requirement of debugging is reduced, remote debugging, long-range calling downloading definite value can be carried out by single group personnel
And testing scheme, and realize that progress chasing and debugging result are analyzed；
(2) present invention is distributed protective module, topology adaptation module and two-way authentication hardware encryption mould by setting on the spot
Block, can solve distributed generation resource access bi-directional current leads to inadaptable protection, singlephase earth fault and the incomplete CT in scene
The problems such as mode of connection, reduces the workload of live O&M debugging, improves efficiency, ensures power grid security, and data are transmitted complete
Property and confidentiality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention, for those of ordinary skill in the art, without any creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram in embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawing and specific embodiment party
The present invention is described in further detail for formula.Obviously, described embodiments are only a part of the embodiments of the present invention, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of distributed feeder automations to protect intelligent regulator platform, including distribution
Net management master device, the intelligent distributed protection terminal of power distribution network and communication network composition, the communication network includes cable modem
Communication network and wireless 4G communication network.
The present invention using wireline communication network and wireless 4G communication network realize the intelligent distributed protection terminal of power distribution network and
Power distribution network manages the communication between master device, realizes more place distributed communications, realizes number between the more more places of debugging instrument
According to interaction, realize that the intelligent distributed SOT state of termination remotely perceives.When being debugged, without configuring people in each test point
Member's cooperation reduces the personnel amount requirement of debugging, and remote debugging, long-range calling downloading definite value and survey can be carried out by single group personnel
Examination scheme, and realize that progress chasing and debugging result are analyzed.
In the present invention, wireline communication network and wireless 4G communication network pass through double net switching modules realization network switchings,
Double net switching modules by the signal monitoring course cycles in dsp board inquire clock synchronization signal and receive data quality whether
Correctly, if one of communication mode is incorrect, it is immediately switched to another communication pattern, to guarantee that network is unobstructed.
In the present invention, it is provided in the intelligent distributed protection terminal of the power distribution network and is distributed protective module on the spot, it is described
Distribution protective module includes two DSP protective plug-in units on the spot, and the DSP protective plug-in unit passes through differential protection in the present invention, real
Existing fault location, isolated fault and starting feeder means are overlapped, and DSP protective plug-in unit described in two respectively corresponds cable data
Source and wireless data source simultaneously execute differential protection strategy, when two class data sources are intact, at only a set of Preservation tactics
In operating status, another set of Preservation tactics are spare, when one of two class data sources go wrong, then correspond to differential protection
Logic makees invalidation.
In the present invention, the protective module of distribution on the spot further includes distributed differential protection module, simple bus on the spot
Differential protection module and Zero sequence current differential protection module and on the spot the coincidence automatic feed line module of formula.
In distributed differential protection module on the spot, the operation equation of differential current is as follows:
Id> Icd, Ir≤5Icd/3
(Id-Icd) 0.6 (I of >r-5Icd/ 3), 5Icd/ 3 < Ir< 5Icd
Id-[0.6(5Icd-5Icd/3)+Icd] 0.8 (I of >r-5Icd), Ir≥5Icd
In formula, Id--- difference current；Ir--- stalling current；Icd--- the differential definite value of split-phase.
Difference current IdWith stalling current IrCalculation formula:
In formula:--- the sum of all side phase currents
Ii--- maximum phase current in all sides；
∑Ii--- the sum of other side phase currents.
In the present invention, the shown simple bus differential protecting module, to identify ring network cabinet bus-bar fault, load line
Road failure, acquisition looped network cabinet wire electric current get in touch with out each branch over current fault signal of line current and substation, complete simple female
Difference protection.After simple bus differential protection starts, when not receiving charge circuit over current fault block signal, it is identified as bus-bar fault, every
From all switches on the substation；When receiving charge circuit over current fault block signal, it is identified as charge circuit failure, only
The charge circuit of isolated fault switchs.
In the present invention, the Zero sequence current differential protection module, city 10kV power distribution network have using neutral point through small electricity
Earthing mode is hindered, ring network cabinet CT usually presses AC0 configuration, and route zero-sequence current is derived from external zero sequence CT, and no-load voltage ratio is separately provided, and zero
Sequence current differential protection obtains the external zero-sequence current at route both ends, carries out differential differentiation, guarantees route B phase fault, single-phase connects
Earth fault reliable location and isolation.
In the automatic feed line module of the formula of coincidence on the spot of the invention, it is overlapped formula FEEDER AUTOMATION on the spot and is overlapped on the spot
Formula strategy are as follows:
After being overlapped for the first time, providing the breaker tripping of fault current side, through delayed setting automatic reclosing.If this failure
For transient fault, then successful reclosing.If permanent fault, reclosing failure accelerates the breaker of this coincidence of tripping, really at this time
After recognizing no current, then the on-load switch or breaker of the non-tripping in each side in tripping fault point.
It is overlapped for the second time, if fault point breaker tripping isolated fault, does not then execute this step.If non-faulting
The local breaker tripping of point, then need coinciding distal ends to be passed the breaker of tripping.After detecting no current, confirmation is acted successfully, still
Using successively transfer mode, to adjacent transmitting switching signal, until closing the breaker for thering is tripping to remember (breaker because
Tripping is transmitted, locality, which should be done, to be remembered).
In traditional centralized FEEDER AUTOMATION, after Fault Isolation success, when needing to restore electricity, master is relied on
The operation stood carries out reclosing, needs manually to close a floodgate once communicating and breaking down.The formula of coincidence on the spot of the invention is automatic
Feed line module largely reduces the technical risk that artificial reclosing is carried out in communication failure.
By the way that above-mentioned distribution protective module on the spot is arranged, solving distributed generation resource access bi-directional current causes to protect
The problems such as inadaptable, singlephase earth fault and the live not exclusively CT mode of connection.
In the present invention, it is provided with topology adaptation module in the power distribution network management master device, the topology is adaptive
Module is answered, after primary system interruption maintenance, one-shot change occurs for system, and FA system detects variation automatically, and online updating is opened up
Relationship is flutterred, by the way that topology adaptation module is arranged, reduces the workload of live O&M debugging, improves efficiency.
In the present invention, it is provided in the power distribution network management master device and the intelligent distributed protection terminal of power distribution network
Two-way authentication hardware encryption module, the two-way authentication hardware encryption module are realized using two-way authentication hardware-based cryptographic
Safety, confidentiality and the non-repudiation of distribution automation information service, the two-way authentication hardware encryption module, including
Two-shipper isolation module, tetra- layers of isolation module of TCP and 104 communication protocol of electric power check module, by the way that above-mentioned two-way authentication is arranged
Hardware encryption module has ensured power grid security, the integrality and confidentiality of data transmission.
Detailed Jie has been carried out to a kind of distributed feeder automation protection intelligent regulator platform provided by the present invention above
It continues, for those of ordinary skill in the art, thought according to an embodiment of the present invention, in specific embodiment and application range
Upper there will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. it is a kind of distribution feeder automation protect intelligent regulator platform, which is characterized in that including power distribution network management master device,
The intelligent distributed protection terminal of power distribution network and communication network composition, the communication network include wireline communication network, wireless 4G logical
Communication network and double net switching modules；
It is provided in the intelligent distributed protection terminal of power distribution network and is distributed protective module on the spot, power distribution network management main website is set
It is standby to be above provided with topology adaptation module, it is set in the power distribution network management master device and the intelligent distributed protection terminal of power distribution network
It is equipped with two-way authentication hardware encryption module.
2. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that described
On the spot distribution protective module include two DSP protective plug-in units, the DSP protective plug-in unit by differential protection realization fault location,
Isolated fault and starting feeder means are overlapped.
3. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 2, which is characterized in that two
The DSP protective plug-in unit respectively corresponds cable data source and wireless data source and executes differential protection strategy, when two classes
When data source is intact, only a set of Preservation tactics are in operating status, and another set of Preservation tactics are spare, when two class data sources
One of them goes wrong, then corresponds to differential protection logic and make invalidation.
4. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that described
It is distributed protective module on the spot, further includes distributed differential protection module, simple bus differential protecting module and zero-sequence current on the spot
Differential protection module and on the spot the coincidence automatic feed line module of formula.
5. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 4, which is characterized in that described
Simple bus differential protecting module, to identify ring network cabinet bus-bar fault, charge circuit failure, acquisition looped network cabinet wire electric current, connection
Network goes out each branch over current fault signal of line current and substation, completes simple bus differential protection and does not receive after simple bus differential protection starts
When to charge circuit over current fault block signal, it is identified as bus-bar fault, all switches on the substation are isolated；When receiving load
When route over current fault block signal, it is identified as charge circuit failure, the charge circuit switch of only isolated fault.
6. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 4, which is characterized in that described
Zero sequence current differential protection module, city 10kV power distribution network have using Neutral Point Through Low Resistance mode, and ring network cabinet CT is usual
It is configured by AC0, route zero-sequence current is derived from external zero sequence CT, and no-load voltage ratio is separately provided, and Zero sequence current differential protection obtains route two
The external zero-sequence current at end carries out differential differentiation, guarantees route B phase fault, singlephase earth fault reliable location and isolation.
7. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that described
Topology adaptation module, after primary system interruption maintenance, one-shot change occurs for system, and FA system detects variation automatically, and
Line updates topological relation.
8. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that described
Two-way authentication hardware encryption module, using two-way authentication hardware-based cryptographic, realize distribution automation information service safety,
Confidentiality and non-repudiation.
9. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that described
Two-way authentication hardware encryption module, including two-shipper isolation module, tetra- layers of isolation module of TCP and 104 communication protocol of electric power check mould
Block.
10. intelligent regulator platform is protected in a kind of distributed feeder automation according to claim 1, which is characterized in that institute
Double net switching modules are stated, are by the quality that the signal monitoring course cycles in dsp board inquire clock synchronization signal and receive data
It is no correct, if one of communication mode is incorrect, it is immediately switched to another communication pattern.
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| CN201910493044.5A CN110429707A (en) | 2019-06-06 | 2019-06-06 | A kind of distribution feeder automation protection intelligent regulator platform |
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| CN201910493044.5A CN110429707A (en) | 2019-06-06 | 2019-06-06 | A kind of distribution feeder automation protection intelligent regulator platform |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110912075A (en) * | 2019-11-15 | 2020-03-24 | 国网浙江省电力有限公司 | Integrated feeder terminal and distributed feeder automation method thereof |
| CN111030066A (en) * | 2019-12-18 | 2020-04-17 | 南京国电南自电网自动化有限公司 | Line differential protection method based on switching of optical fiber channel and wireless channel |
| CN111146755A (en) * | 2019-12-31 | 2020-05-12 | 石家庄高景软件科技有限公司 | Feeder terminal and line protection device |
| CN114089702A (en) * | 2021-11-08 | 2022-02-25 | 浙江浙能技术研究院有限公司 | DCS (distributed control system) mobile debugging system and method |
| CN116316480A (en) * | 2023-03-21 | 2023-06-23 | 广东电网有限责任公司茂名供电局 | GIS-based topology error prevention method, system, medium and computer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912075A (en) * | 2019-11-15 | 2020-03-24 | 国网浙江省电力有限公司 | Integrated feeder terminal and distributed feeder automation method thereof |
| CN111030066A (en) * | 2019-12-18 | 2020-04-17 | 南京国电南自电网自动化有限公司 | Line differential protection method based on switching of optical fiber channel and wireless channel |
| CN111030066B (en) * | 2019-12-18 | 2022-02-15 | 南京国电南自电网自动化有限公司 | Line differential protection method based on switching of optical fiber channel and wireless channel |
| CN111146755A (en) * | 2019-12-31 | 2020-05-12 | 石家庄高景软件科技有限公司 | Feeder terminal and line protection device |
| CN114089702A (en) * | 2021-11-08 | 2022-02-25 | 浙江浙能技术研究院有限公司 | DCS (distributed control system) mobile debugging system and method |
| CN116316480A (en) * | 2023-03-21 | 2023-06-23 | 广东电网有限责任公司茂名供电局 | GIS-based topology error prevention method, system, medium and computer |
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Application publication date: 20191108 |