CN107681642B - A kind of substation's site protection system - Google Patents
A kind of substation's site protection system Download PDFInfo
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- CN107681642B CN107681642B CN201710706886.5A CN201710706886A CN107681642B CN 107681642 B CN107681642 B CN 107681642B CN 201710706886 A CN201710706886 A CN 201710706886A CN 107681642 B CN107681642 B CN 107681642B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of substation's sites, and system, including monospace to be protected to protect, across interval protection, stand domain protection and automatization controlling device；Protection and public control terminal for data acquisition in route, mother and segmented configuration site monospace；The public control terminal for data acquisition of site is configured in each side of transformer；Bus and transformer configuration protected host are pressed across interval protection；Stand domain protection and automatization controlling device is concentrated in control room group screen configuration；Grid across interval by protecting dedicated looped network, monitoring looped network and the public looped network of protection to form.The present invention is solved the problems, such as that intelligent substation relay protection system rapidity and reliability reduce across interval protection and bidirectional ring network, while being suitable for a variety of mounting locations and running environment using the protection of site monospace, distribution.
Description
Technical field
The present invention relates to Relay Protection Technology in Power System fields, and in particular to a kind of substation's site protection system.
Background technique
Currently, intelligent substation generallys use the system architecture of " three layer of two net ", the new IED such as combining unit, intelligent terminal
Equipment is used widely, and mounting means is varied widely, and while promoting intelligent substation development, gives secondary profession
Bring some new problems, be mainly reflected in: protection sampling, tripping link increase, rapidity and reliability reduce；Network rack
Structure is complicated, and interchanger quantity is more；Device void loop configuration is complicated, high to configuration interface and documentation requirements；Installation, debugging and maintenance
Heavy workload.
In recent years, GE company is proposed the Substation process-level busing solution HardFiber for meeting IEC 61850
Process Bus System, the core of the program are known as the switch yard I/O interface equipment of Bricks, and Bricks is used
Outdoor unshielded mounting means carries out all measurement and control to primary equipment by cable completion, and by optical fiber and protects
It protects control device and carries out data exchange, realize the site of I/O interface equipment.But protection control equipment itself especially across
Traditional mounting means is still used every protection, is not carried out the installation of whole station secondary device site.
China has accepted patent 201510370184.5 " a kind of multi-functional Top-down design device towards interval " and has disclosed
A kind of multi-functional Top-down design device towards interval, specific implementation are by combining unit, intelligent terminal and protection observing and controlling
Independent CPU is respectively adopted to realize, using multi -CPU board, ensure that multi-functional relative independentability.Although this method is saved
Data transmission period between device, but there are data transmission delays between plate, therefore operating time of protection will compare conventional substation
Route protection about 3 ~ 4ms slowly, while this method does not refer to the unshielded installation measure of site, is unsuitable for site installation.
China accepted patent 201610393714.2 " dereliction formula site protection equipment for transformer based on dual-ring network and
Guard method " discloses dereliction formula site protection equipment for transformer and guard method based on dual-ring network, concrete methods of realizing
It is each side setting protection handset of transformer, is connected hand in hand between handset by dual-ring network, shared data, each handset in-site collecting
This side form analog quantity and switching value carry out transformer master, rear relay protective scheme operation, and directly control the corresponding breaker of tripping.This
Kind method does not have host, each handset equity, and each handset relies on the data of other handsets, has the following problems, any handset
Defencive function will fail when abnormal, and data acquisition, relay protective scheme operation and tripping are realized by different device respectively, data link
Long, link is more, and reliability reduces.
China has accepted patent 201611181075.X " site relay protection system " and has disclosed a kind of site relay
Protection system, concrete methods of realizing are that setting monospace is protected, across interval protection and observing and controlling automation equipment, monospace protection dress
It sets and installs on the spot, be installed on master control room across interval protection and measure and control device, monospace protection is protected including super acquisition unit, route
Shield, combining unit and intelligent terminal, across interval protection by protected host, monospace handset, combining unit, intelligent terminal, GOOSE
Interchanger and point-to-point SV optical fiber composition.This implementation method increases super acquisition unit on the basis of existing intelligent substation and makees
It is complicated across interval implementation for an electrical secondary system interface, fail site installation across interval protected host.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of substation's site protection system is provided,
Using the monospace protection of function Top-down design, distributed across interval protection and bidirectional ring network, solve intelligent substation after
The problem of electric protection system rapidity and reliability reduce, while being suitable for a variety of mounting locations and running environment.
In order to solve the above technical problems, the present invention provides a kind of substation's sites to protect system, characterized in that including
The protection of function Top-down design monospace, the distribution based on bidirectional loop network are across interval protection, stand domain protection and automatically-monitored dress
Set, monospace is protected and uses SoC(System on Chip across interval protection) system on chip, hermetically sealed integrated molding cabinet,
Realize site installation；
Monospace protection includes route, mother and sectionalised protection, includes transformer and bus protection across interval protection；
In route, mother and segmentation site configuration monospace protection and public control terminal for data acquisition；In each side of transformer
Site configures public control terminal for data acquisition；Protected host is configured in bus and transformer difference site；Stand domain protection and from
Dynamicization monitoring device concentrates group screen to configure in control room；
Tranformer protection is made of the public control terminal for data acquisition of tranformer protection host and each side of transformer, tranformer protection
Host is set up the dedicated looped network of tranformer protection with public control terminal for data acquisition and is connect；Bus protection by route, transformer corresponding side,
Mother and the public control terminal for data acquisition of segmentation and bus protection host form, bus protection host and public control terminal for data acquisition
Set up the dedicated looped network connection of bus protection；
It protects and across composition monitoring bidirectional looped network connection between interval protected host and automatization controlling device in monospace；
Composition protects public looped network to connect between all public control terminal for data acquisition and the protection of station domain.
Further, bus protection private network and tranformer protection private network pass through SV and GOOSE message realization data sharing.
Further, on monitoring bidirectional loop network, monospace protection is real by MMS message with automatization controlling device
Now monitor and control, monospace protection and across interval protection between by GOOSE message realize linkage, be latched.
Further, public looped network is protected to realize that net is adopted net jump, message acquisition and failure and remembered by SV and GOOSE message
Record.
Further, it stands and domain protection while accessing the public looped network of protection and monitoring looped network.
Further, automatization controlling device includes Network records and fault oscillograph, monitoring backstage, telecontrol device and information-preserving
Substation.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being: the present invention is independent by monospace defencive function
It realizes, accelerates protection act speed, while improving monospace protection reliability；Distributed arrangement, enlarging configuration are protected across interval
Flexibly, independent to set up dedicated looped network, it improves across interval protection reliability.The network architecture scheme of looped network, realize data redundancy,
While guaranteeing communication reliability, switch device is eliminated.Whole station exchange speculative investment is eliminated compared to intelligent substation, is reduced
Cable and optical fiber, the quantity for shielding cabinet, site installation is reduced stand in building occupied area, realize substation safety can
It leans on, economical and efficient operation.
Detailed description of the invention
Fig. 1 is that substation's site protects system architecture diagram；
Fig. 2 is that structural block diagram is protected in monospace；
Fig. 3 is public control terminal for data acquisition structural block diagram；
Fig. 4 is to protect structural block diagram across interval；
Fig. 5 is the dedicated ring network framework figure of tranformer protection；
Fig. 6 is the dedicated ring network framework figure of bus protection；
Fig. 7 is to protect public ring network framework figure；
Fig. 8 is monitoring system ring network framework figure.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of substation's site of the invention protects system, including function Top-down design monospace to protect
Shield, the distribution based on bidirectional loop network are across interval protection, stand domain protection and automatization controlling device, monospace protection and across interval
Protect site installation；
Monospace protection includes route, mother and sectionalised protection, includes transformer and bus protection across interval protection；
In route, mother and segmentation site configuration monospace protection and public control terminal for data acquisition；In each side of transformer
Site configures public control terminal for data acquisition；Protected host is configured in bus and transformer difference site；Stand domain protection and from
Dynamicization monitoring device concentrates group screen to configure in control room；
Tranformer protection is made of the public control terminal for data acquisition of tranformer protection host and each side of transformer, tranformer protection
Host is set up the dedicated looped network of tranformer protection with public control terminal for data acquisition and is connect；Bus protection by route, transformer corresponding side,
Mother and the public control terminal for data acquisition of segmentation and bus protection host form, bus protection host and public control terminal for data acquisition
Set up the dedicated looped network connection of bus protection；
It protects and across composition monitoring bidirectional looped network connection between interval protected host and automatization controlling device in monospace；
Composition protects public looped network to connect between all public control terminal for data acquisition and the protection of station domain.
Above-described automatization controlling device include in the prior art Network records and fault oscillograph, monitoring backstage,
Telecontrol device and prudential sub-station etc..
Monospace the protection implement for example under: one monospace protective device of each configuration at each route, mother and segmentation, peace
Loaded on outdoor terminals sub-line accessory mount.Integrated protection, combining unit and intelligent terminal function are protected in monospace, are function
Top-down design.With analog acquisition, relay protective scheme operation, input and output and SV, GOOSE communication function, direct cable sampling
Cable tripping, the various types failure of energy independent reaction protected object, device are real with system on chip and peripheral chip
It is existing, using aviation plug, it is suitable for the unshielded installation of site.
As shown in Fig. 2, monospace protective device be equipped with ring interfaces, light IRIG-B module, communication FPGA, sampling FPGA,
SOC, Analog input mModule are opened into module and output module；Analog input mModule access sampling FPGA, light IRIG-B mould
Block, communication FPGA, is opened into module, outputs module and access SOC sampling FPGA, and protection starting is included in system on chip
DSP1, protection exit DSP2 and CPU management 1, DSP1 complete protection exit logical operation, and DSP2 completes protection starting logic fortune
It calculates, starting and action logic issue trip signal by outputing module when being all satisfied, and CPU management 1 completes protection setting management, interior
Portion's module management function.Device at least has a ring interfaces, accesses monitoring bidirectional looped network.Light IRIG-B interface is connected to
FPGA receives external clock synchronization signal, and FPGA parses satellite clock synchronization information, generates time synchronization information, and generates between internal module
Synchronization signal, realization device clock are synchronous.Device accesses a mutual inductor by cable, then complete by Analog input mModule
It is converted at signal condition and A/D, A/D conversion frequency is 4000Hz, and A/D signal is controlled by acquisition FPGA, and the data after conversion are removed
Acquisition FPGA caching is moved to, protection starting and movement are acquired by 2 different A/D chips respectively.DSP1 is total by inner high speed
Line reads and writes input and output module, and input and output accesses primary switch and disconnecting link wiring terminal box by cable.DSP1 and DSP2 from
CPU management 1 obtains protection definite value and according to voltage and current sample value carries out protection starting, action logic operation, to outputing mould
Block issues trip signal, and generates protection event.The a part of FPGA as communication interface is communicated, there is MMS, GOOSE and SV
Communication message tissue, network task scheduling, storm filtering, flow control and MAC function realize that data are handed over SoC system on chip
Mutually.
Public control terminal for data acquisition is as the public acquisition across interval protected host, domain protection and automatization controlling device of standing
Controlling terminal is equipped with multiple groups looped network port and adapts to use above, has analog quantity, quantity of state acquisition and control function, directly electricity
Cable samples cable and trips, and by interval configuration, protects independently with monospace, device is real with system on chip and peripheral chip
It is existing, using aviation plug, it is suitable for the unshielded installation of site.
As shown in figure 3, public control terminal for data acquisition by ring interfaces, light IRIG-B module, communication FPGA, sampling FPGA,
SOC, Analog input mModule are opened into module and output module composition, Analog input mModule access sampling FPGA, light IRIG-B
Module, communication FPGA, is opened into module, outputs module and access SOC sampling FPGA, in system on chip comprising operation DSP3,
CPU management 2, operation DSP3 complete sampled value processing, 2 finishing device parameter management of CPU management, internal module management function.Ring
Net module at least has there are two ring interfaces, be respectively connected in above system across interval protection private network (including transformer private network and
Bus private network) and the public bidirectional loop network of protection.Light IRIG-B interface is connected to FPGA, receives external clock synchronization signal, FPGA parsing
Satellite clock synchronization information generates time synchronization information, and generates synchronization signal between internal module, and realization device clock is synchronous.Device
A mutual inductor is accessed by cable, signal condition is then completed by Analog input mModule and A/D is converted, A/D conversion frequency
Rate is 4000Hz, and A/D signal is by acquisition FPGA control, and the data-moving extremely acquisition FPGA after conversion is cached, and protection starts and moves
Make to be acquired by 2 different A/D chips respectively.DSP3 reads and writes input and output module by inner high speed bus, and input and output is logical
Cross the primary switch of cable access and disconnecting link wiring terminal box.The a part of FPGA as communication interface is communicated, there is MMS, GOOSE
With SV communication message tissue, network task scheduling, storm filtering, flow control and MAC function realize number with SoC system on chip
According to interaction.
When public control terminal for data acquisition is applied to each side of transformer, 1 public control terminal for data acquisition can configure, have at least
3 ring interfaces are respectively connected to the dedicated looped network of bus protection, the dedicated looped network of tranformer protection and the public looped network of protection, can also be with
2 public control terminal for data acquisition are configured, every has at least two ring interfaces, and every ring interfaces are respectively connected to bus
Protection and the dedicated looped network of tranformer protection, another ring interfaces access the public looped network of protection simultaneously.
Multiple groups bidirectional loop network is equipped with across interval protected host (general designation of tranformer protection host and bus protection host) to connect
Mouthful, GOOSE, SV message of public control terminal for data acquisition in subnet are received, data is completed and synchronizes, realize relay protective scheme operation, to
Handset sends GOOSE message, while host can interact the letter such as unsuccessful reason, failure shunt tripping with other protections by looped network port
Breath.
As shown in figure 4, being equipped with ring interfaces across interval protected host, light IRIG-B module, communication FPGA, SOC, opening into mould
It block and outputs module, light IRIG-B module, communication FPGA, opens into module, outputs module and access SOC, SoC includes protection starting
DSP4, protection exit DSP5 and CPU management 3, DSP4 complete protection starting logical operation, and DSP5 completes protection exit logic fortune
It calculates, issues trip signal by outputing module when starting and action logic are all satisfied, CPU management 3 completes protection definite value, device ginseng
Number, module management.DSP4 reads and writes input and output module by inner high speed bus, and input and output acquires and alert section for pressing plate
Point output.Light IRIG-B interface is connected to FPGA, receives external clock synchronization signal, and FPGA parses satellite clock synchronization information, generates the time
Synchronizing information, and synchronization signal between internal module is generated, realization device clock is synchronous.FPGA is communicated between ring interfaces and SoC
Between, as a part of communication interface, there is MMS, GOOSE and SV communication message tissue, network task scheduling, storm mistake
Filter, flow control and MAC function realize data interaction with SoC system on chip.Device at least has there are two ring interfaces, distinguishes
It is interior across interval private network and monitoring looped network to access above system, by receiving and dispatching GOOSE signal across interval private network reception SV sampled value,
Pass through connection locking GOOSE information and MMS monitoring information between monitoring looped network transmitting-receiving protection.
Protection system of the invention includes three mutually independent bidirectional ring networks, can be according to substation's scale and equipment
Type is divided into multiple subring nets mutually decoupled, balances each subring net interior nodes quantity, effectively reduces network transmission and prolong
When, it is specific as follows conducive to the flexible expansion at interval:
One, dedicated bidirectional ring network, including bus protection private network and tranformer protection private network are protected across interval, passed through
IEC 61850-9-2 SV and GOOSE message realize data sharing；
Two, interval is protected, forms monitoring bidirectional loop network across interval protection and automatization controlling device, in this looped network
On, protective device and automatization controlling device lead to by MMS message realization monitoring and control, interval protection and across being spaced between protection
It crosses GOOSE message and realizes linkage, locking；
Three, public control terminal for data acquisition, domain protection composition of standing protect public bidirectional loop network, pass through IEC 61850-9-2 SV
Realize that net adopts net jump, message acquisition and fault logging function with GOOSE message.
It describes in detail below to each bidirectional loop network:
Tranformer protection is as shown in Figure 5, comprising: in three side of transformer, (high-pressure side, medium voltage side and low-pressure side) respectively configures one
A public control terminal for data acquisition configures a tranformer protection host, is mounted on outdoor terminals sub-line accessory mount, public
With control terminal for data acquisition access a CT, PT, open into, output cable loop, tranformer protection host accesses pressing plate, alarming node
Cable, each public control terminal for data acquisition and tranformer protection host access the dedicated looped network of tranformer protection, and public acquisition control is whole
Hold while accessing the public bidirectional loop network of protection, IRIG-B clock synchronization optical fiber in access station.
Bus protection is as shown in Figure 6, comprising: each public acquisition control of configuration one is whole at each route, mother or segmentation
End, configures a bus protection host, is mounted on outdoor terminals sub-line accessory mount, public control terminal for data acquisition access
CT, PT, open into, output cable loop, bus protection host accesses pressing plate, alarming node cable, route, transformer list
Side, mother or the public control terminal for data acquisition of segmentation and bus protection host access the dedicated looped network of bus protection, public acquisition control
Terminal accesses the public bidirectional loop network of protection, IRIG-B clock synchronization optical fiber in access station simultaneously.
Public looped network is protected as shown in fig. 7, stand interior each voltage class route, mother, the public acquisition control in each side of transformer
Terminal and station domain protection composition protect public looped network.
Monitor looped network as shown in figure 8, automatization controlling device, route protection, bus protection host, route protection host,
Mother protection and station domain protection composition monitoring looped network.
The invention has the benefit that
The present invention is independently realized by monospace defencive function, accelerates protection act speed, while improving monospace protection
Reliability；Distributed arrangement is protected across interval, enlarging configuration is flexibly, independent to set up dedicated looped network, improves reliable across interval protection
Property.The network architecture scheme of looped network eliminates switch device while realizing data redundancy, guaranteeing communication reliability.Phase
Whole station exchange speculative investment is eliminated than intelligent substation, reduces cable and optical fiber, the quantity for shielding cabinet, and site installation reduces station
Interior building occupied area.Realize that substation safety is reliable, economical and efficient operation.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of substation's site protects system, characterized in that including the protection of function Top-down design monospace, be based on two-way ring
The distribution of net is protected across interval, domain of standing is protected and automatization controlling device, and monospace is protected and pacified across protection site is spaced
Dress；
Monospace protection includes route, mother and sectionalised protection, includes transformer and bus protection across interval protection；
In route, mother and segmentation site configuration monospace protection and public control terminal for data acquisition；Each side of transformer on the spot
Change and configures public control terminal for data acquisition；Protected host is configured in bus and transformer difference site；Stand domain protection and automation
Monitoring device concentrates group screen to configure in control room；
Tranformer protection is made of the public control terminal for data acquisition of tranformer protection host and each side of transformer, tranformer protection host
The dedicated looped network of tranformer protection is set up with public control terminal for data acquisition to connect；Bus protection is by route, transformer corresponding side, mother
It is formed with the public control terminal for data acquisition and bus protection host of segmentation, bus protection host and public control terminal for data acquisition are set up
The dedicated looped network connection of bus protection；
It protects and across composition monitoring bidirectional looped network connection between interval protected host and automatization controlling device in monospace；
Composition protects public looped network to connect between all public control terminal for data acquisition and the protection of station domain.
2. a kind of substation's site according to claim 1 protects system, characterized in that public the adopting of each side of transformer
Collecting controlling terminal includes the public control terminal for data acquisition for being separately positioned on high voltage side of transformer, medium voltage side and low-pressure side.
3. a kind of substation's site according to claim 1 protects system, characterized in that bus protection private network and transformation
Device protects private network to realize data sharing by SV and GOOSE message.
4. a kind of substation's site according to claim 1 protects system, characterized in that in monitoring bidirectional loop network
On, monospace protection realizes that monitoring and control, monospace protection are protected with across interval by MMS message with automatization controlling device
Between pass through GOOSE message realize linkage, locking.
5. a kind of substation's site according to claim 1 protects system, characterized in that public looped network is protected to pass through SV
Data sharing is realized with GOOSE message.
6. a kind of substation's site according to claim 1 protects system, characterized in that protect while accessing guarantor in domain of standing
Protect public looped network and monitoring looped network.
7. a kind of substation's site according to claim 1 protects system, characterized in that automatization controlling device includes
Network records and fault oscillograph, monitoring backstage, telecontrol device and prudential sub-station.
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| CN201710706886.5A CN107681642B (en) | 2017-08-17 | 2017-08-17 | A kind of substation's site protection system |
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| CN201710706886.5A CN107681642B (en) | 2017-08-17 | 2017-08-17 | A kind of substation's site protection system |
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| CN110290198B (en) * | 2019-06-21 | 2022-03-04 | 上海东土远景工业科技有限公司 | GOOSE message sending method and device |
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| CN107681642A (en) | 2018-02-09 |
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