CN109413141B - Access method and system between main station and sub-station of power grid - Google Patents
Access method and system between main station and sub-station of power grid Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
The invention relates to a method and a system for accessing between main stations and sub-stations of a power grid, wherein the method comprises the following steps: the transparent access server of the substation registers the provided service on the global service manager in advance; based on the services registered by the transparent access server of the substation, the transparent access server of the substation receives a data service request sent by a scheduling center through the real-time transparent access server of the main station; and the transparent access server of the substation searches the requested data from the virtual data pool according to the received data service request, returns the searched data to the main station, and simultaneously returns the data to the scheduling center for service application. The access method and the system between the main stations and the sub stations of the power grid solve the problem that the data use bottleneck between an upstream transformer substation and a downstream control center is caused because the content transmitted by the transformer substation is only limited to four-remote data, and provide full-type data support for sufficient complex operation analysis and accident analysis of the large power grid.
Description
Technical Field
The invention belongs to the technical field of power dispatching automation, and particularly relates to a method and a system for accessing between main stations and sub-stations of a power grid.
Background
Reliable data interaction between the main station and the sub station of the power grid is an important guarantee for stable operation of a system in the field of dispatching and power transformation. With the advance and deepening of the construction of the intelligent transformer substation, more new technologies and new equipment are adopted by the intelligent transformer substation, and the data interaction requirements among the main substation and the sub-substations are developed from the original simple four-remote mode to a mode which integrates multiple data types and is represented by remote browsing and direct alarm transmission; meanwhile, data interaction between control centers is also developed from simple data forwarding to a complex data exchange mode represented by remote retrieval.
Traditional power grid data are forwarded step by step through a protocol, a master station and a substation end need to perform library alignment, transmitted content is limited to 'four remote' data, the bottleneck of data use between an upstream substation and a downstream control center is caused, and a large amount of data of the substation except for 'four remote' are retained in the substation, so that sufficient data are difficult to provide for operation analysis and accident analysis of a complex and large power grid.
Disclosure of Invention
In order to solve the problems that the content transmitted by the traditional transformer substation is only limited to four-remote data, so that the bottleneck of data use between an upstream transformer substation and a downstream control center is caused, and a large amount of data except the four-remote data of the transformer substation is retained in a substation and is difficult to provide enough data to support the operation analysis and accident analysis use of a complex large power grid, the invention provides an access method between main substations and sub substations of the power grid, which comprises the following steps:
the master station acquires a data service request of a scheduling center;
acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
and the master station receiving substation determines the returned data according to the service request and sends the data to a scheduling center initiating the data service request.
Preferably, the acquiring, by the master station, the data service request of the scheduling center includes:
and the master station acquires a data service request of the scheduling center through a service access interface arranged on the master station.
Preferably, before the master station acquires the data service request of the scheduling center, the method further includes:
the substation registers the services provided by itself on the global service manager.
Preferably, the acquiring substation service location information based on the data service request and sending the data service request to the substation to which the location information relates includes:
and the master station inquires the registered service from a global service manager based on the data service request, acquires a substation corresponding to the data service request and sends the data service request to the substation.
Preferably, the determining, by the substation, the returned data according to the service request includes:
the substation inquires whether data corresponding to the data service request exists in a virtual data pool based on the service request, and if so, returns a data result of the request to the master station;
otherwise, the substation acquires data from the substation control layer or the bay layer service of the substation through the data communication gateway, subjects the acquired data to objectification processing and then returns the data to the main station, and meanwhile caches the objectification processed data in the virtual data pool.
Preferably, before sending the data to the scheduling center that initiates the data service request, the method further includes:
when the data service request is a file, the processing mode is to transmit stream data in a general service protocol;
when the data service request is measurement data set transmission, remote control remote regulation operation, event and device state, the processing mode is object-oriented data set transmission in a general service protocol;
and when the data service request is for remotely browsing the plant, the processing mode simultaneously comprises the transmission of stream data of the plant graphic file and the transmission of an object-oriented data set of the plant measurement data.
Preferably, the sending the data to the scheduling center initiating the data service request includes:
when the data received by the master station is streaming data, packaging the received streaming data into a file and feeding the file back to a service application of a dispatching center;
and when the data received by the master station is an object-oriented data set, directly feeding back the data set to the service application of the scheduling center.
Preferably, the service access interface of the master station includes:
the method comprises the steps of obtaining a plant model, obtaining a plant graph, obtaining plant remote signaling and remote measuring data, remotely controlling and remotely adjusting the plant, obtaining plant alarm direct transmission information, remotely browsing the plant, obtaining plant historical data and alarms, and obtaining an application service access interface of a plant relay protection device information data service.
An access system between main and sub-stations of a power grid, comprising:
transparent access client: the transparent access client is arranged in the main station and comprises: a service access interface module;
the service access interface is to: acquiring a data service request of a dispatching center;
an information acquisition module: acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
a data acquisition module: and the master station receiving substation determines the returned data according to the service request and sends the data to a scheduling center initiating the data service request.
Preferably, the system also comprises a transparent access server end;
the transparent access server end is arranged on the substation and comprises: and an application service interface module.
Preferably, the information acquisition module comprises a service information positioning unit;
and the service information positioning unit is used for the main station to inquire the registered service to the global service manager based on the data service request, obtain the substation corresponding to the data service request and send the data service request to the substation.
Preferably, the data acquisition module comprises a data query unit and a data return unit;
the data query unit is used for the substation to query whether data corresponding to the data service request exists in the virtual data pool based on the service request, and if so, the data query unit returns a data result of the request to the master station;
otherwise, the substation acquires data from the substation control layer or bay layer service of the substation through the data communication gateway, performs objectification processing on the acquired data and then returns the processed data to the main station, and meanwhile caches the objectified data in the virtual data pool; the data return unit is used for packing the received stream data into a file and feeding the file back to the service application of the dispatching center when the data received by the main station is the stream data;
and when the data received by the master station is an object-oriented data set, directly feeding back the data set to the service application of the scheduling center.
Moreover, compared with the closest prior art, the application also has the following beneficial effects:
1. according to the access method and system between the main station and the sub-stations of the power grid, the main station acquires a data service request of a dispatching center, acquires substation service positioning information based on the data service request and sends the data service request to the sub-stations related to the positioning information, the main station receives data returned by the sub-stations according to the service request and sends the data to the dispatching center initiating the data service request, the problem that the content transmitted by a traditional substation is limited to four-remote data, so that the bottleneck of data use between an upstream substation and a downstream control center is caused is solved, and full-type data support is provided for sufficient complex power grid operation analysis and accident analysis;
2. the access method and the system between the main stations and the sub-stations of the power grid change the long-term adopted modes of point-to-point data interaction, four remote transmission of the traditional protocol and alarm information between the transformer substation and the regulation and control center, and realize the 'required availability' of the power grid operation data and the equipment monitoring data of the transformer substation;
3. the access method and the system between the main stations and the sub-stations of the power grid provided by the invention can directly provide physical data service capacity meeting business requirements for a plurality of regulation and control centers at the same time, and support the free access requirements of any main station to any transformer substation, thereby improving the online perception capability of the regulation and control centers on the operation states of the power grid and equipment, providing powerful support for ensuring the safe, reliable and economic operation of the power grid, and having remarkable economic and social benefits for the dispatching and operation of the power grid.
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FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a technical schematic of the present invention;
fig. 3 is a usage diagram of the master station and the slave station after the transparent access system is implemented.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
For a better understanding of the present invention, the following examples are given to illustrate the present invention:
example 1
As shown in fig. 1: a method for accessing between main stations and sub-stations of a power grid comprises the following steps:
step 1: the master station acquires a data service request of a scheduling center;
step 2: acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
and step 3: and the master station receiving substation determines the returned data according to the service request and sends the data to a scheduling center initiating the data service request.
The above steps are explained in detail with reference to FIGS. 2 and 3
Explanation of step 1: the real-time transparent access tool between the main station and the sub station of the power grid realizes the served transparent access of the main station and the sub station by utilizing the internet technology, so that various applications such as state estimation, SCADA and the like of a station control layer and a spacer layer device of a transformer substation and a regulation and control center can provide served release for data resources of the transformer substation, and any node in a dispatching data network can be freely accessed to the transformer substation and the regulation and control center as long as safety and permission are allowed.
The real-time transparent access tool between the main station and the sub-station of the power grid is simultaneously deployed at the main station end and the sub-station end, wherein the sub-station end is a server end for real-time transparent access, the main station end is a client end for real-time transparent access, and the server end for real-time transparent access registers the service provided by the server end on the global service manager. In the framework, a global service manager is provided, each main station is provided with a real-time transparent service client, and each substation is provided with a real-time transparent service server.
Explanation of step 2:
the real-time transparent access tool deployed in the main station provides an application service access interface for data services such as acquiring a plant model, acquiring a plant graph, acquiring plant remote signaling and remote measuring data, remotely controlling and remotely adjusting a plant, acquiring plant alarm direct transmission information, remotely browsing the plant, acquiring plant historical data and alarm, acquiring plant relay protection device information and the like. And the dispatching center business application initiates a data service request through an application service access interface of the real-time transparent access tool client according to the secondary safety protection requirement.
The application service interface of the real-time transparent access tool client judges the type of the data service request, and respectively processes the data service request in a distributed service data stream processing mode and an object-oriented data set mode:
a) if the data service request is to obtain a station model and a station graph, the data to be transmitted is a file, and a stream data unit in a general service protocol is used for transmission;
b) if the data service request is to acquire remote signaling and remote measuring data of a station, acquire historical data and alarm of the station, acquire relay protection device information of the station, remotely control and remotely tune the station, acquire direct alarm transmission information of the station, and transmit data to be transmitted as a measurement data set, remotely control and remotely tune operation, an event and a device state in a universal service protocol in an object-oriented data set;
c) if the data service request is to remotely browse the factory, the data service request simultaneously comprises a stream data unit for transmitting the graphic file of the factory and an object-oriented data set for transmitting the factory measurement data.
And the transparent access data acquisition module of the real-time transparent access client side performs global service query on the global service manager to acquire substation service positioning information corresponding to the data service request of the scheduling master station service application, and transmits the data service request to the real-time transparent access server side of the corresponding substation through the transparent access data acquisition module of the client side.
Explanation of step 3:
after receiving a data service request, a real-time transparent access server end deployed at a substation end firstly queries whether a virtual data pool composed of a monitoring background resource pool and an intelligent equipment resource pool has a queried object, and if so, returns a requested data result; and if not, acquiring the required data from the substation control layer service or the bay layer service of the transformer substation through the data communication gateway machine. Data acquired from substation control layer services of the transformer substation are cached in a monitoring background resource pool, and data acquired from bay layer services are cached in an intelligent equipment resource pool for subsequent data access. Before entering the virtual data pool, data acquired from the station control layer service and the bay layer service need to be subjected to objectification processing so as to meet the requirement of uniform object modeling of a scheduling end. And the data entering the virtual data pool have life cycles, and the data are deleted from the virtual data pool when the data reach the end point of the life cycles. And the substation service module returns the objectified data in the virtual data pool to the transparent access data module of the real-time transparent access client.
And a transparent access data module of the real-time transparent access client receives the service data returned by the real-time transparent access server. If the returned data is the stream data, packaging the received data into a file according to a stream data processing mode, and returning the file to the service application of the dispatching center; and if the object-oriented data set is returned, returning the data set to the dispatching center business application.
Example 2
The invention also relates to an access system between the main stations and the sub-stations of the power grid, which comprises the following components:
transparent access client: the transparent access client is arranged in the main station and comprises: a service access interface module;
the service access interface is to: acquiring a data service request of a dispatching center;
an information acquisition module: acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
a data acquisition module: and the master station receiving substation determines the returned data according to the service request and sends the data to a scheduling center initiating the data service request.
The system also comprises a transparent access server end;
the transparent access server end is arranged on the substation and comprises: and an application service interface module.
The information acquisition module comprises a service information positioning unit;
and the service information positioning unit is used for the main station to inquire the registered service to the global service manager based on the data service request, obtain the substation corresponding to the data service request and send the data service request to the substation.
The data acquisition module comprises a data query unit and a data return unit;
the data query unit is used for the substation to query whether data corresponding to the data service request exists in the virtual data pool based on the service request, and if so, the data query unit returns a data result of the request to the master station;
otherwise, the substation acquires data from the substation control layer or bay layer service of the substation through the data communication gateway, performs objectification processing on the acquired data and then returns the processed data to the main station, and meanwhile caches the objectified data in the virtual data pool; the data return unit is used for packing the received stream data into a file and feeding the file back to the service application of the dispatching center when the data received by the main station is the stream data;
and when the data received by the master station is an object-oriented data set, directly feeding back the data set to the service application of the scheduling center.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (7)
1. A method for accessing between main stations and sub-stations of a power grid is characterized by comprising the following steps:
the master station acquires a data service request of a scheduling center;
acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
the master station receiving substation determines returned data according to the data service request and sends the data to a scheduling center initiating the data service request;
before sending the data to the scheduling center initiating the data service request, the method further includes:
when the data service request is a file, the processing mode is to transmit stream data in a general service protocol;
when the data service request is measurement data set transmission, remote control remote regulation operation, event and device state, the processing mode is object-oriented data set transmission in a general service protocol; when the data service request is a remote browsing station, the processing mode is that the data service request simultaneously transmits stream data of a station graphic file and transmits an object-oriented data set of station measurement data;
the sending the data to the dispatch center initiating the data service request comprises:
when the data received by the master station is streaming data, packaging the received streaming data into a file and feeding the file back to a service application of a dispatching center;
when the data received by the master station is an object-oriented data set, directly feeding back the data set to a service application of a scheduling center;
the substation determining the returned data according to the data service request comprises:
the substation inquires whether data corresponding to the data service request exists in a virtual data pool based on the data service request, and if so, returns a data result of the request to the master station;
otherwise, the substation acquires data from the substation control layer or the bay layer service of the substation through the data communication gateway, subjects the acquired data to objectification processing and then returns the data to the main station, and meanwhile caches the objectification processed data in the virtual data pool.
2. The method as claimed in claim 1, wherein the step of the master station obtaining a data service request from a dispatching center comprises:
and the master station acquires a data service request of the scheduling center through a service access interface arranged on the master station.
3. The method as claimed in claim 1, wherein before the master station obtains the data service request from the dispatching center, the method further comprises:
the substation registers the services provided by itself on the global service manager.
4. The method for accessing between main substations of power grid and sub substations of claim 3, wherein obtaining substation service location information based on the data service request and sending the data service request to the substation to which the location information relates comprises:
and the master station inquires the registered service from a global service manager based on the data service request, acquires a substation corresponding to the data service request and sends the data service request to the substation.
5. The method as claimed in claim 2, wherein the service access interface of the main station comprises:
the method comprises the steps of obtaining a plant model, obtaining a plant graph, obtaining plant remote signaling and remote measuring data, remotely controlling and remotely adjusting the plant, obtaining plant alarm direct transmission information, remotely browsing the plant, obtaining plant historical data and alarms, and obtaining an application service access interface of a plant relay protection device information data service.
6. The system for the access method between the main station and the sub-station of the power grid as claimed in claim 1, comprising:
transparent access client: the transparent access client is arranged in the main station and comprises: a service access interface module;
the service access interface is to: acquiring a data service request of a dispatching center;
an information acquisition module: acquiring substation service positioning information based on the data service request, and sending the data service request to a substation related to the positioning information;
a data acquisition module: the master station receiving substation determines returned data according to the data service request and sends the data to a scheduling center initiating the data service request;
the information acquisition module comprises a service information positioning unit;
the service information positioning unit is used for the main station to inquire the registered service to a global service manager based on the data service request, obtain a substation corresponding to the data service request and send the data service request to the substation;
the data acquisition module comprises a data query unit and a data return unit;
the data query unit is used for the substation to query whether data corresponding to the data service request exists in the virtual data pool based on the data service request, and if so, the data query unit returns a data result of the request to the master station;
otherwise, the substation acquires data from the substation control layer or bay layer service of the substation through the data communication gateway, performs objectification processing on the acquired data and then returns the processed data to the main station, and meanwhile caches the objectified data in the virtual data pool; the data return unit is used for packing the received stream data into a file and feeding the file back to the service application of the dispatching center when the data received by the main station is the stream data;
and when the data received by the master station is an object-oriented data set, directly feeding back the data set to the service application of the scheduling center.
7. The system for the access method between the main station and the sub-station of the power grid as claimed in claim 6, further comprising a transparent access server end;
the transparent access server end is arranged on the substation and comprises: and an application service interface module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811041608.3A CN109413141B (en) | 2018-09-07 | 2018-09-07 | Access method and system between main station and sub-station of power grid |
| PCT/CN2019/103689 WO2020048395A1 (en) | 2018-09-07 | 2019-08-30 | Method and system for access between main station and sub-station of power grid |
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| CN201811041608.3A CN109413141B (en) | 2018-09-07 | 2018-09-07 | Access method and system between main station and sub-station of power grid |
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| CN109413141A CN109413141A (en) | 2019-03-01 |
| CN109413141B true CN109413141B (en) | 2022-03-18 |
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| CN109413141B (en) * | 2018-09-07 | 2022-03-18 | 中国电力科学研究院有限公司 | Access method and system between main station and sub-station of power grid |
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| CN111782221A (en) * | 2020-06-29 | 2020-10-16 | 中国电力科学研究院有限公司 | Automatic deployment system and method of power grid dispatching control system |
| CN111914518A (en) * | 2020-08-11 | 2020-11-10 | 广东电网有限责任公司广州供电局 | Ticket name list file updating method applied to programmed operation of transformer substation |
| CN112383138A (en) * | 2020-10-14 | 2021-02-19 | 北京四方继保工程技术有限公司 | Relay protection data service method and master station system thereof |
| CN112291091B (en) * | 2020-10-26 | 2022-11-29 | 积成电子股份有限公司 | Resource sharing method for substation data communication gateway machine |
| CN114089972A (en) * | 2021-11-16 | 2022-02-25 | 上海许继电气有限公司 | Intelligent configuration and checking device and method for main substation and substation of information protection system based on SpringCloud |
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