CN108768995B - Substation self-adaptive master station access method - Google Patents
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The disclosure relates to a method for a sub-station to adaptively access a main station. The method is used for a main station in a fault information system and comprises the following steps: determining a communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area; according to the determined communication protocol, sending a request for acquiring substation configuration information to the substation; and when receiving the substation configuration information sent by the substation based on the request, storing the substation configuration information. The substation self-adaptive master station access method can realize the compatibility of substations of different types or different areas to the master station, and ensures that the substation configuration information is reliably transmitted to the master station.
Description
Technical Field
The disclosure relates to the technical field of data monitoring of power systems, in particular to a method for enabling a sub-station to be adaptively accessed to a main station.
Background
In the related art, a relay protection and fault information processing system (i.e., a fault information system) includes a main station and a sub-station. The master station and the substation can exchange information through a communication network. In the fault information system, a substation at a station end communicates with intelligent electronic equipment such as a protection device, a fault recording device, a safety automatic device and the like, collects normal operation state information, abnormal alarm information, fault information and fault related data of the devices, and sends the information to a main station at a dispatching end after preliminary processing.
With the continuous development of power systems, the scale of a power grid is larger and larger, and the important significance of ensuring the reliable and stable operation of the power grid is achieved. When the power grid fails, a dispatcher can rapidly master the actual fault condition and the relay protection action of the power grid according to the abnormal alarm information, the fault information and the fault related data sent by the substation, and analyze the power grid accident in time, so that the judgment is rapidly made and the power grid is recovered, the accuracy and the timeliness of the power grid fault processing are improved, and the power supply interruption time is shortened.
Currently, a substation access master station is configured manually. However, the substations are complex and cumbersome, the number of substation manufacturers is large, and communication protocols in each area are also greatly different, so that access of the substations in different types or different areas to the master station becomes complex and cumbersome.
Disclosure of Invention
In view of this, the present disclosure provides a method for accessing a substation to a master station in a self-adaptive manner, so as to solve the problem in the related art that the process for accessing the master station by the substation in different types or different areas is complicated.
According to an aspect of the present disclosure, there is provided a method for a secondary station to adaptively access a primary station, for the primary station in a failure information system, the method including:
determining a communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area;
according to the determined communication protocol, sending a request for acquiring substation configuration information to the substation;
and when receiving the substation configuration information sent by the substation based on the request, storing the substation configuration information.
In one possible implementation manner, the storing the substation configuration information includes:
and if the substation configuration information sent by the substation is determined to be received for the first time, storing the substation configuration information into a formal data table.
In one possible implementation manner, the storing the substation configuration information includes:
if the substation configuration information sent by the substation is determined not to be received for the first time, the substation configuration information is stored in a temporary data table;
and storing the substation configuration information into a formal data table according to the determined warehousing mode.
In a possible implementation manner, if the determined warehousing manner is an incremental warehousing manner, saving the substation configuration information to a formal data table according to the determined warehousing manner includes:
comparing the substation configuration information with substation configuration information stored in the formal data table;
if the substation configuration information is added with information relative to the substation configuration information stored in the formal data table, acquiring the added information;
and saving the added information into the formal data table.
In a possible implementation manner, if the determined warehousing manner is an incremental warehousing manner, saving the substation configuration information to a formal data table according to the determined warehousing manner includes:
comparing the substation configuration information with substation configuration information stored in the formal data table;
if the substation configuration information is reduced from the substation configuration information stored in the formal data table, acquiring the reduced information;
deleting the reduced information from the formal data table.
In a possible implementation manner, if the determined warehousing manner is a rebuilt warehousing manner, saving the substation configuration information to a formal data table according to the determined warehousing manner includes:
deleting the substation configuration information stored in the formal data table;
and storing the substation configuration information into the formal data table.
In one possible implementation, after saving the substation configuration information, the method further includes:
classifying the substation configuration information according to a classification standard; the classification standard comprises one or more items of analog quantity information, state quantity information, fixed value information, input quantity information, alarm information, pressing plate information and action information.
In one possible implementation, after saving the substation configuration information, the method further includes:
acquiring a transformer substation interval to which a protection device belongs;
matching the transformer substation interval to which the protection device belongs with the protection device corresponding to the substation in the formal data sheet to obtain the corresponding relation between the transformer substation interval and the substation;
and storing the corresponding relation between the transformer substation interval and the substation.
In one possible implementation, after saving the substation configuration information, the method further includes:
and when the alarm information sent by the substation is received, storing the alarm information according to the substation configuration information.
According to the substation self-adaptive master station access method, the master station determines a communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area, sends a request for acquiring substation configuration information to the substation according to the determined communication protocol, and stores the substation configuration information when receiving the substation configuration information sent by the substation based on the request, so that the substation compatible with different types or different areas can be accessed to the master station, and the substation configuration information is ensured to be reliably transmitted to the master station.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a schematic diagram of a fault information system according to an embodiment of the present disclosure.
Fig. 2 shows a flowchart of a substation adaptive access master station method according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 shows a schematic diagram of a fault information system according to an embodiment of the present disclosure. As shown in fig. 1, the fault information system includes a protection device, a substation, and a master station. The protection device and the substation can exchange information through a communication network (such as a switch), and the substation and the main station can exchange information through the communication network (such as the switch). The number of the protection devices and the substations may be one or more, which is not limited by the present disclosure.
A protection device (also referred to as a secondary equipment) may refer to equipment that oversees, measures, controls, protects, and regulates primary equipment within a power system. A primary device may refer to a device within a power system that is directly used to produce and use electrical energy. The protection device can collect information of the primary equipment, including action information, alarm information, self-checking information and the like, and the disclosure does not limit the information.
The substation can be a device located at a plant station end, can communicate with intelligent electronic devices such as a protection device, a fault recording device and a safety automatic device, collects normal operation state information, abnormal alarm information, fault information and fault related data of the devices, and sends the data to the main station after primary processing.
The master station can be a device which is located at the dispatching end and can receive the normal operation state information, the abnormal alarm information, the fault information and the fault related data which are sent by the substation and collected from the intelligent electronic device, and store and analyze the data.
In one possible implementation, a configuration file is downloaded in the protection device to implement basic configuration of the protection device, where the configuration file includes an IP (Internet Protocol) address of the protection device, analog quantity information, state quantity information, fixed value information, and the like. The configuration file including the configuration files of the respective protection devices, the IP address of the master station, the IP address and port number of the slave station, and the communication regulation applicable to the communication with the master station is downloaded in the slave station to realize the basic configuration of the slave station. And selecting a communication protocol between the protection device and the substation, networking, testing the connectivity between the protection device and the substation, and ensuring normal communication between the protection device and the substation.
Fig. 2 shows a flowchart of a substation adaptive access master station method according to an embodiment of the present disclosure. The method is used for a master station in a fault information system. As shown in fig. 2, the method includes steps S21 through S23.
In step S21, a communication protocol applicable to communication with the slave station is determined based on the type of the slave station and the communication protocol of the current area.
The communication protocol may include an IEC61850 protocol and a non-IEC 6185 protocol. The non-IEC 6185 protocol may refer to other protocols than the IEC61850 protocol, such as the IEC103 protocol or other proprietary protocols, etc., which are not limiting of this disclosure.
In a possible implementation manner, the primary station configures the IP address, the port number, the name of the front-end server, the name of the substation, and the like of the substation, so as to implement basic configuration of the primary station. The master station can automatically determine a communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area.
In step S22, a request for obtaining the substation configuration information is transmitted to the substation according to the determined communication protocol.
In step S23, when the slave station configuration information transmitted by the slave station in response to the request is received, the slave station configuration information is stored.
According to the substation self-adaptive master station access method, the master station can determine the communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area, so that the substation access master station compatible with different types or different areas can be realized, and the substation configuration information can be reliably transmitted to the master station.
In one possible implementation, the storing the sub-station configuration information (step S23) includes: and if the substation configuration information sent by the substation is determined to be received for the first time, the substation configuration information is stored in the formal data table.
The communication protocol is an IEC61850 protocol as an example. The master station acquires the SCD (Substation Configuration Description) file of the Substation, and compares the SCD file of the Substation with the Substation Configuration information stored in the formal data table. And if the SCD file of the substation is completely different from the substation configuration information stored in the formal data table, the master station receives the SCD file of the substation for the first time, and the substation is accessed to the master station for the first time. And after the accuracy of the SCD file of the substation is checked and determined to be correct, directly storing the SCD file into a formal data table.
The communication protocol is taken as the IEC103 protocol as an example. The master station acquires the substation configuration information and compares the substation configuration information with the substation configuration information stored in the official data table. If the substation configuration information is completely different from the substation configuration information stored in the formal data table, the master station receives the substation configuration information for the first time, the substation is accessed to the master station for the first time, and the substation configuration information is directly stored in the formal data table after correctness check is carried out on the substation configuration information to determine that the substation configuration information is correct.
In one possible implementation, the storing the sub-station configuration information (step S23) includes: if the substation configuration information sent by the substation is determined not to be received for the first time, the substation configuration information is stored in a temporary data table; and storing the substation configuration information into a formal data table according to the determined warehousing mode.
In a possible implementation manner, if the determined warehousing manner is an incremental warehousing manner, the step of storing the substation configuration information into the formal data table according to the determined warehousing manner includes: comparing the substation configuration information with the substation configuration information stored in the formal data table; if the substation configuration information is added with information relative to the substation configuration information stored in the formal data table, acquiring the added information; and saving the added information into a formal data table.
The communication protocol is an IEC61850 protocol as an example. And the master station acquires the SCD file of the substation and compares the SCD file of the substation with the substation configuration information stored in the formal data table. If the SCD file of the substation is partially the same with respect to the substation configuration information stored in the formal data table and information is added, the master station does not receive the SCD file of the substation for the first time, which indicates that the substation is not accessed to the master station for the first time. And after the accuracy of the SCD file of the substation is checked and determined to be correct, acquiring the added information and saving the added information into a formal data table.
In a possible implementation manner, if the determined warehousing manner is an incremental warehousing manner, the step of storing the substation configuration information into the formal data table according to the determined warehousing manner includes: comparing the substation configuration information with the substation configuration information stored in the formal data table; if the substation configuration information is reduced relative to the substation configuration information stored in the formal data table, obtaining the reduced information; the reduced information is deleted from the official data table.
The communication protocol is an IEC61850 protocol as an example. And the master station acquires the SCD file of the substation and compares the SCD file of the substation with the substation configuration information stored in the formal data table. If the SCD file of the substation is partially the same and information is reduced relative to the substation configuration information stored in the formal data table, the master station does not receive the SCD file of the substation for the first time, and the substation is not accessed to the master station for the first time. And after the SCD files of the substation are checked for correctness and are determined to be correct, acquiring the reduced information and deleting the reduced information from the formal data table.
In a possible implementation manner, if the determined warehousing manner is a rebuilt warehousing manner, the storing the substation configuration information into the formal data table according to the determined warehousing manner includes: deleting the substation configuration information stored in the formal data table; and saving the substation configuration information into a formal data table.
The communication protocol is an IEC61850 protocol as an example. And the master station acquires the SCD file of the substation and compares the SCD file of the substation with the substation configuration information stored in the formal data table. If the SCD file of the substation changes relative to the substation configuration information stored in the formal data table, the master station does not receive the SCD file of the substation for the first time, and the substation is not accessed to the master station for the first time. And after the accuracy of the SCD file of the substation is checked and determined to be correct, the substation configuration information stored in the formal data table is deleted, and the SCD file is stored in the formal data table.
According to the substation self-adaptive master station access method, the master station can realize incremental warehousing or rebuilding warehousing of the substation configuration information, so that the substation access efficiency is improved, and the accuracy of the substation configuration information is ensured.
In one possible implementation, after storing the sub-station configuration information, the method further includes: classifying the sub-station configuration information according to a classification standard; the classification standard comprises one or more items of analog quantity information, state quantity information, fixed value information, input quantity information, alarm information, pressing plate information and action information.
After the master station stores the substation configuration information into the formal data table, the master station processes the substation configuration information, and classifies the substation configuration information according to analog quantity information, state quantity information, fixed value information, input quantity information, alarm information, pressing plate information and action information, so that alarm points and action signal points are processed.
As an example, the master station stores alarm points and action signal points according to alarm types (e.g., self-test alarms, general remote signaling, etc.), alarm sub-types (e.g., total alarm exception, loop exception, etc.), alarm attributions (e.g., device alarms, loop alarms, etc.), alarm influence ranges (e.g., system, device, loop, etc.), alarm reasons, alarm handling measures, etc.
In one possible implementation, after storing the sub-station configuration information, the method further includes: acquiring a transformer substation interval to which a protection device belongs; matching the transformer substation interval to which the protection device belongs with the protection device corresponding to the substation in the formal data sheet to obtain the corresponding relation between the transformer substation interval and the substation; and storing the corresponding relation between the transformer substation interval and the substation.
In one possible implementation, after storing the sub-station configuration information, the method further includes: and when the alarm information sent by the substation is received, the alarm information is stored according to the configuration information of the substation.
According to the substation self-adaptive master station access method, when the primary equipment fails, a dispatcher can rapidly process the failure according to the level, type, influence range, reason, processing measures and the like of the alarm information sent by the substation.
In one possible implementation, the master station may include a substation adaptive access master station apparatus. The substation adaptive access master station device may include: the device comprises a device configuration management module, a device protocol processing module, a device communication module and a human-computer interface module.
The equipment configuration management module is mainly used for managing configuration information according to a data hierarchical structure and acquiring static configuration from a configuration file; and when the protection device is communicated with the substation or the substation and the main station, the data information and the equipment information are acquired from the configuration file and are provided for the equipment communication module.
The equipment protocol processing module is mainly used for protocol processing, and comprises the steps of receiving or sending messages, processing IEC61850 protocol messages, non-IEC 61850 protocol messages and configuration messages of other protocols sent by the main station and the substation, generating dynamic data messages, processing command messages and the like.
The equipment communication module is mainly used for processing the communication workflow of the protection device and the substation and the communication workflow of the substation and the main station. The device communication module manages command communication and information communication, respectively, using a multi-threaded mechanism of operation. Command communications and information communications are relatively independent and cooperate with each other.
The human-computer interface module is mainly used for human-computer interaction, configuration generation of the protection device and the substation, downloading of the configuration, access of the substation to the main station, restarting of the substation and the like.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (7)
1. A method for a secondary station to adaptively access a primary station, the method being used for the primary station in a fault information system, the method comprising:
determining a communication protocol applicable to communication with the substation according to the type of the substation and the communication protocol of the current area;
according to the determined communication protocol, sending a request for acquiring substation configuration information to the substation;
when receiving the substation configuration information sent by the substation based on the request, saving the substation configuration information;
wherein, saving the substation configuration information includes:
if the substation configuration information sent by the substation is determined to be received for the first time, the substation configuration information is stored in a formal data table;
wherein after the substation configuration information is saved, the method further comprises:
acquiring a transformer substation interval to which a protection device belongs;
matching the transformer substation interval to which the protection device belongs with the protection device corresponding to the substation in the formal data sheet to obtain the corresponding relation between the transformer substation interval and the substation;
and storing the corresponding relation between the transformer substation interval and the substation.
2. The method of claim 1, wherein saving the substation configuration information comprises:
if the substation configuration information sent by the substation is determined not to be received for the first time, the substation configuration information is stored in a temporary data table;
and storing the substation configuration information into a formal data table according to the determined warehousing mode.
3. The method according to claim 2, wherein if the determined warehousing manner is an incremental warehousing manner, then storing the substation configuration information into a formal data table according to the determined warehousing manner includes:
comparing the substation configuration information with substation configuration information stored in the formal data table;
if the substation configuration information is added with information relative to the substation configuration information stored in the formal data table, acquiring the added information;
and saving the added information into the formal data table.
4. The method according to claim 2, wherein if the determined warehousing manner is an incremental warehousing manner, then storing the substation configuration information into a formal data table according to the determined warehousing manner includes:
comparing the substation configuration information with substation configuration information stored in the formal data table;
if the substation configuration information is reduced from the substation configuration information stored in the formal data table, acquiring the reduced information;
deleting the reduced information from the formal data table.
5. The method according to claim 2, wherein if the determined warehousing manner is a rebuilt warehousing manner, then saving the substation configuration information into a formal data table according to the determined warehousing manner comprises:
deleting the substation configuration information stored in the formal data table;
and storing the substation configuration information into the formal data table.
6. The method of claim 1, wherein after saving the substation configuration information, the method further comprises:
classifying the substation configuration information according to a classification standard; the classification standard comprises one or more items of analog quantity information, state quantity information, fixed value information, input quantity information, alarm information, pressing plate information and action information.
7. The method of claim 1, wherein after saving the substation configuration information, the method further comprises:
and when the alarm information sent by the substation is received, storing the alarm information according to the substation configuration information.
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