Master station access method and system of transformer substation

Abstract

The invention belongs to the technical field of power system automation, and particularly relates to a main station access method and system of a transformer substation. Obtaining servitization information interaction characteristics corresponding to the substation equipment information; according to the difference of real-time message uploading reasons of the servitization information interaction characteristics, different message queues are adopted to upload data needing to be uploaded in real time; and selecting an interaction mechanism of the real-time access type service according to a real-time requirement, and transmitting the data according to the corresponding interaction mechanism. According to different real-time message uploading reasons, different message queues are selected to upload corresponding data, the process increases the reliability of data transmission, in order to ensure the uploading efficiency of the real-time data, when the uploading reason is aperiodic uploading, the high-speed message queue is adopted to upload, the data can be transmitted in time, and the real-time data uploading efficiency is improved. And the data transmission efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power system automation, and in particular relates to a master station access method and system for a substation. Background Art

[0002] Since the State Grid Corporation of China started the construction of smart substations, the development and construction of the secondary systems of existing substations have provided strong support for the operation monitoring and control of the dispatching master station. However, with the construction of a new generation of control systems and centralized control stations, the functions and positioning of the secondary systems of substations have also been adjusted and changed, and new requirements have been put forward for remote monitoring, operation and maintenance, and detection and debugging of substations. In the existing technology, real-time data, historical data, models, graphics, files, logs and other information of substations are obtained through the secondary system of the system, but the original system has problems such as decentralized system functions, low integration, low data transmission efficiency, and large maintenance workload. Therefore, there is an urgent need for a master station access method that can meet new requirements to achieve remote monitoring, operation and maintenance, and detection and debugging of substations. Summary of the invention

[0003] The object of the present invention is to provide a master station access method and system for a substation, so as to solve the problem of low data transmission efficiency in the master station access process in the existing master station access method.

[0004] In order to solve the above technical problems, the present invention provides a master station access method of a substation, comprising the following steps:

[0005] 1) According to the acquired substation equipment information and the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the substation equipment information are obtained;

[0006] 2) When the reason for sending the real-time message of the service-oriented information interaction feature is periodic sending, the data to be sent in real time is sent using a low-speed message queue; when the reason for sending is aperiodic sending, the data to be sent in real time is sent using a high-speed message queue;

[0007] 3) Select the interaction mechanism of the real-time access service according to the real-time requirements, and transmit the data according to the corresponding interaction mechanism.

[0008] Its beneficial effects are as follows: in the present invention, according to the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the acquired substation equipment information are first obtained, wherein the substation equipment information includes the substation power grid primary / secondary equipment information, auxiliary equipment information, online detection data and fire information, and the service information interaction characteristics include power grid operation status, equipment operation status, message alarms, control operations, etc. By pre-corresponding the substation equipment information with the service information interaction characteristics, a correspondence between the preset substation equipment information and the service information interaction characteristics is formed, and then based on the substation equipment information, the service information interaction characteristics corresponding to the substation equipment information can be obtained. In the present invention, by selecting different message queues to send corresponding data according to different reasons for sending real-time messages, this process increases the reliability of data transmission. Because the scale of real-time data sending is large, in order to ensure the sending efficiency of real-time data, in the present invention, by using low-speed message queues to send when the sending reason is periodic sending, and using high-speed message queues to send when the sending reason is non-periodic sending, it is ensured that when the sending reason is non-periodic sending (that is, when the sending reason is sudden sending), the data can be sent in time, thereby improving the efficiency of data transmission. In addition, by extracting the service information interaction characteristics, the present invention determines the classified and graded data interaction types, selects the service interaction mechanism according to the business, realizes the on-demand efficient transmission of multi-business real-time service data, and meets the on-demand access requirements of the master station to the substation business data.

[0009] Furthermore, in step 2), if the data to be uploaded in real time is multi-service real-time data, the data to be uploaded is uploaded by using a corresponding message queue in a multi-channel concurrent outbound manner.

[0010] In the present invention, the multi-channel concurrent outbound mode is that one channel corresponds to one real-time interactive service, for example, the primary and secondary equipment monitoring information of this real-time interactive service corresponds to one channel, and this channel is only used to send the primary and secondary equipment monitoring information, and the auxiliary equipment important real-time information of this real-time interactive service corresponds to another channel, and this channel is only used to send the auxiliary equipment important real-time information. Based on the real-time service interaction for multi-service concurrency of the present invention, the multi-channel concurrent outbound mode is adopted, which has higher transmission efficiency than sequential outbound, and based on one channel corresponding to one real-time interactive service, it is further guaranteed that the data transmission process of the corresponding service is more reliable.

[0011] Furthermore, in step 2), if the data to be uploaded in real time is data retrieved from a dynamic data set, the corresponding data in the dynamic data set will be deleted after the corresponding data upload is completed.

[0012] When the data set is retrieved based on the dynamic data set in the present invention, the data in the dynamic data set is added so that the corresponding data can be obtained from the dynamic data set when it is needed, and based on the method of the present invention, after the corresponding data in the dynamic data set is obtained (that is, after the data is used up), the corresponding data in the dynamic data set is deleted to save the corresponding resources. And based on the process of first creating the dynamic data set, then obtaining and deleting the corresponding data from the dynamic data set, the channel resource consumption is small, thereby improving the transmission efficiency.

[0013] Furthermore, in step 2), it is determined whether the data to be sent is real-time data according to the data interaction type. If it is real-time data, the reason for sending the real-time message of the real-time data is determined.

[0014] Furthermore, if the data interaction type is a telemetry or telesignaling interaction type, the data to be uploaded is real-time data; if the data interaction type is a teleadjustment or telecontrol data type, a high-speed message queue is used to upload the data to be uploaded.

[0015] The data interaction types of real-time access services mainly include telemetry, telesignaling, remote control and remote adjustment. Among them, telemetry and telesignaling data types are used for sending real-time data. The scale of the data sent is large, the real-time requirement is high, but the sending level requirement is not high; remote adjustment and remote control data types are often used for the switch on and off, gear adjustment and other situations issued by the master station for protection, measurement and control devices. The data scale is small, the real-time response requirement is lower than the real-time data, but the importance level is high. Therefore, in the present invention, based on the sending process of telemetry and telesignaling data types with large sending scale, high real-time requirement, but low sending level requirement, different message queues are used for sending based on the reason of real-time message sending. In the case of large data scale and high real-time requirement, the orderly and rapid transmission of data can be guaranteed. In the case of small data scale, lower real-time requirement than real-time data, but high importance level, the high-speed message queue is used for transmission, so as to ensure the data transmission efficiency of the high importance level.

[0016] In order to solve the above technical problems, the present invention further provides a master station access system for a substation, comprising a memory and a processor, wherein the processor is used to execute instructions to implement the following method steps:

[0017] 1) According to the acquired substation equipment information and the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the substation equipment information are obtained;

[0018] 2) When the reason for sending the real-time message of the service-oriented information interaction feature is periodic sending, the data to be sent in real time is sent using a low-speed message queue; when the reason for sending is aperiodic sending, the data to be sent in real time is sent using a high-speed message queue;

[0019] 3) Select the interaction mechanism of the real-time access service according to the real-time requirements, and transmit the data according to the corresponding interaction mechanism.

[0020] Its beneficial effects are as follows: in the present invention, according to the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the acquired substation equipment information are first obtained, wherein the substation equipment information includes the substation power grid primary / secondary equipment information, auxiliary equipment information, online detection data and fire information, and the service information interaction characteristics include power grid operation status, equipment operation status, message alarms, control operations, etc. By pre-corresponding the substation equipment information with the service information interaction characteristics, a correspondence between the preset substation equipment information and the service information interaction characteristics is formed, and then based on the substation equipment information, the service information interaction characteristics corresponding to the substation equipment information can be obtained. In the present invention, different message queues are selected to send corresponding data according to different reasons for sending real-time messages. This process increases the reliability of data transmission. Since the scale of real-time data sending is large, in order to ensure the sending efficiency of real-time data, in the present invention, when the sending reason is periodic sending, a low-speed message queue is used for sending, and when the sending reason is non-periodic sending, a high-speed message queue is used for sending. This ensures that when the sending reason is non-periodic sending (that is, when the sending reason is burst sending), the data can be sent in time, thereby improving the efficiency of data transmission.

[0021] Furthermore, in step 2), if the data to be uploaded in real time is multi-service real-time data, the data to be uploaded is uploaded by using a corresponding message queue in a multi-channel concurrent outbound manner.

[0022] In the present invention, the multi-channel concurrent outbound mode is that one channel corresponds to one real-time interactive service, for example, the primary and secondary equipment monitoring information of this real-time interactive service corresponds to one channel, and this channel is only used to send the primary and secondary equipment monitoring information, and the auxiliary equipment important real-time information of this real-time interactive service corresponds to another channel, and this channel is only used to send the auxiliary equipment important real-time information. Based on the real-time service interaction for multi-service concurrency of the present invention, the multi-channel concurrent outbound mode is adopted, which has higher transmission efficiency than sequential outbound, and based on one channel corresponding to one real-time interactive service, it is further guaranteed that the data transmission process of the corresponding service is more reliable.

[0023] Furthermore, in step 2), if the data to be uploaded in real time is data retrieved from a dynamic data set, the corresponding data in the dynamic data set will be deleted after the corresponding data upload is completed.

[0024] In the data set access based on the dynamic data set in the present invention, the data in the dynamic data set is added so that the corresponding data can be obtained from the dynamic data set when it is needed, and after the corresponding data in the dynamic data set is obtained (that is, after the data is used up), the corresponding data in the dynamic data set is deleted to save the corresponding resources. And based on the process of first creating the dynamic data set, then obtaining and deleting the corresponding data from the dynamic data set, the channel resource consumption is small, thereby improving the transmission efficiency.

[0025] Furthermore, in step 2), it is determined whether the data to be sent is real-time data according to the data interaction type. If it is real-time data, the reason for sending the real-time message of the real-time data is determined.

[0026] Furthermore, if the data interaction type is a telemetry or telesignaling interaction type, the data to be uploaded is real-time data; if the data interaction type is a teleadjustment or telecontrol data type, a high-speed message queue is used to upload the data to be uploaded.

[0027] The data interaction types of real-time access services mainly include telemetry, telesignaling, remote control and remote adjustment. Among them, telemetry and telesignaling data types are used for sending real-time data. The scale of the data sent is large, the real-time requirement is high, but the sending level requirement is not high; remote adjustment and remote control data types are often used for the switch on and off, gear adjustment and other situations issued by the master station for protection, measurement and control devices. The data scale is small, the real-time response requirement is lower than the real-time data, but the importance level is high. Therefore, in the present invention, based on the sending process of telemetry and telesignaling data types with large sending scale, high real-time requirement, but low sending level requirement, different message queues are used for sending based on the reason of real-time message sending. In the case of large data scale and high real-time requirement, the orderly and rapid transmission of data can be guaranteed. In the case of small data scale, lower real-time requirement than real-time data, but high importance level, the high-speed message queue is used for transmission, so as to ensure the data transmission efficiency of the high importance level. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a structural block diagram of a master station access system for a substation of the present invention;

[0029] Figure 2 It is a schematic flow chart of the master station access method of the substation of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Master station access system implementation example of substation:

[0032] The master station access system of this embodiment starts from the business needs of the dispatching master station and the centralized control station, classifies the various business interaction methods, and establishes a service-oriented access and calling mechanism based on a unified model on the basis of a unified substation primary, secondary and auxiliary equipment model in a model-based and service-based data exchange method, thereby realizing on-demand access to substation real-time data, historical data, models, graphics, files, logs and other information.

[0033] like Figure 1 As shown in the figure, according to the different online interaction methods of different business real-time services, the online interaction methods of real-time access services are divided into three types: a multi-channel multi-business concurrent interaction method, an online interaction method based on customizable services (an online interaction method customized based on dynamic data sets), and an interaction method based on remote procedure calls.

[0034] Specifically, the real-time access service interaction system of this embodiment adopts a multi-channel based multi-service concurrent interaction mode according to the application scenario analysis of the real-time access service. Real-time access services mainly include primary and secondary equipment monitoring information, protection information, important real-time information of auxiliary equipment, online monitoring, fire protection, power quality and other multi-service real-time information. Multi-channel based multi-service concurrent interaction mode. Real-time access services mainly include primary and secondary equipment monitoring information, protection information, important real-time information of auxiliary equipment, online monitoring, fire protection, power quality and other multi-service real-time information. For the real-time service interaction of multiple services concurrently, a multi-channel concurrent outbound mode is adopted, that is, one channel corresponds to one real-time interactive service, which has the characteristics of small data volume per service per channel and high transmission efficiency.

[0035] Online interactive mode based on customizable services. Customizable services mainly refer to service data customization based on dynamic data sets, which can support remote acquisition of detailed substation data and real-time refresh. After the data is used up, the dynamically created data sets can be deleted. Online interactive mode based on customizable services. Customizable services mainly refer to service data customization based on dynamic data sets, which can support remote acquisition of detailed substation data and real-time refresh. After the data is used up, the dynamically created data sets can be deleted. It has the characteristics of low channel resource consumption and on-demand access to panoramic data.

[0036] Interaction mode based on remote procedure call. Mainly used for substation section data acquisition service, it can realize on-demand access to panoramic section real-time data. Interaction mode based on remote procedure call. For substation section data acquisition service, based on remote procedure call service, customizable access model service and real-time data access service are designed to realize on-demand access to panoramic section real-time data.

[0037] The real-time access service main factory online interaction strategy of this embodiment analyzes the real-time access data content and type according to the interaction mode and business requirements of the real-time access service, extracts the interaction characteristics, interaction type, interaction mechanism and other characteristics of the real-time access service, and proposes a customizable real-time access online interaction strategy based on DL / T860-CMS standardization. The implementation steps are as follows: Figure 2 As shown:

[0038] 1) Extract the service-oriented information interaction characteristics of the main plant station.

[0039] Substation power grid primary / secondary equipment information, auxiliary equipment information, online monitoring data, and fire protection information constitute the business information interaction requirements of real-time access services. Through the analysis of the main plant station information interaction business requirements of substation equipment information, the business requirements characteristics are clarified, and the service-oriented information interaction characteristics of the main plant station are extracted. Primary equipment information mainly includes the location and measurement of transformers, circuit breakers, switches, busbars, lines, capacitors / reactors, mutual inductors, arc suppression coils, lightning arresters, trolleys, and grounding transformers; secondary equipment information mainly includes protection devices, measurement and control devices, standby automatic switching, safety automatic devices, low-frequency and low-voltage load reduction and decoupling devices, out-of-step decoupling devices, and intelligent recording devices and other intelligent secondary equipment information; auxiliary control information mainly includes dynamic environment equipment, security and defense equipment, fire protection equipment, online monitoring and other information. By analyzing the business needs of the main plant information interaction of the above-mentioned substation equipment information, the business needs characteristics are clarified, and the service-oriented information interaction characteristics of the main plant are extracted, such as the grid operation status (GridNetStatus), equipment operation status (DevStatus), control operation (ControlAction), fire alarm (FireAlarm), etc., and appropriate interaction strategies will be formulated based on the interaction characteristics of each business in the future.

[0040] 2) Determine the data interaction type of real-time access services.

[0041] The data interaction types of real-time access services mainly include four types of remote information, namely telemetry, telesignaling, remote control and remote adjustment. According to the characteristics of business needs and in combination with the characteristics of the four types of remote information data, the hierarchical and classified data interaction types are determined. Among them, the telemetry and telesignaling data types are used for the transmission of real-time data. The data transmission scale is large and the real-time requirements are high, but the transmission level requirements are not high. According to the different reasons for the transmission of real-time messages, the telemetry and telesignaling data that are transmitted periodically are transmitted using low-speed message queues, and the telemetry and telesignaling data that are transmitted suddenly are transmitted using high-speed message queues (the transmission reasons in this embodiment include periodic transmission and sudden transmission, that is, except for the data that is previously specified to be transmitted periodically, the rest of the data transmission process is a sudden transmission process). The remote adjustment and remote control data types are often used for the master station to send switch on and off, gear adjustment, etc. issued by protection, measurement and control devices. The data scale is small and the real-time response requirements are lower than real-time data, but the importance level is high, and high-speed message queues are used for transmission. In addition, the uploading process of telemetry and telesignaling data types with large uploading scale and high real-time requirements but low uploading level requirements adopts different message queues for uploading based on the reason of real-time message uploading. In the case of large data scale and high real-time requirements, the orderly and rapid transmission of data can be guaranteed. In the present embodiment, when faced with the situation that the data scale is small and the real-time requirements are lower than the real-time data, but the importance level is high, the process of high-speed message queue transmission is adopted to ensure the data transmission efficiency of the high importance level.

[0042] In the "high-speed message queue" and "low-speed message queue" in this embodiment, the setting of high-speed and low-speed queues is an operation performed by the application end in a scenario where a large number of four remote messages are received and processed to ensure the stability of product or system functions and realize efficient message processing. It is a setting at the software function implementation level. It is mainly divided according to the degree of influence of different message types (four remote information) on the realization of product or system functions. For example, sudden changes or sudden changes in remote signal messages and remote control messages are sent only when there are changes, which has a great impact on the realization of product functions, so a high-priority queue is set for processing. Telemetry and remote pulse types are sent periodically. Even if frames are lost occasionally, it will not affect the realization of product or system functions, so low priority processing is set.

[0043] 3) Select the interaction mechanism for real-time access services.

[0044] The interaction mechanism of real-time access services is mainly based on the DL / T860-CMS communication message protocol. The DL / T860-CMS communication message protocol is classified into three interaction modes: request-response mode, subscription-publishing mode and test mode. Figure 2The data publishing mode and subscription mode in the DL / T860-CMS communication message protocol are the subscription-publishing mode. For some businesses, subscription tends to subscribe to received data for processing (but the processed data may not be sent out through publishing). The same is true for publishing. Considering that different businesses tend to use different methods, Figure 2 The request-response mode defines two ASDUs (Application Service Data Units), Request and Response, for each service, which are used for various services such as reading, writing, and control. The subscription-publishing mode is divided into two independent processes, subscription and publishing. Subscription is a request-response process, and publishing is an active sending process. There is only one ASDU for publishing, such as Report, CommandTermination, and Abort services. The test mode is used for channel testing, and together with the KeepAlive mechanism of the TCP protocol, it is used to detect abnormal network interruptions. Real-time access services mostly use the request-response and publishing modes, followed by the subscription mode. Choose the appropriate interaction mechanism for real-time access services according to the actual needs of the business: real-time access services mainly use the request-response and data publishing modes, followed by the subscription mode. The request-response mode is mostly used for control-type and command execution-type real-time data services initiated by the client, such as setting, remote control, and remote adjustment; the data publishing mode is mainly used for remote transmission of real-time data on the server side, such as traditional real-time data such as telemetry and remote communication; the subscription mode is used for query-type access services with high real-time requirements, such as the reading of real-time section data.

[0045] In the present invention, according to the correspondence between preset substation equipment information and service information interaction characteristics, the service information interaction characteristics corresponding to the acquired substation equipment information are first obtained, wherein the substation equipment information includes substation power grid primary / secondary equipment information, auxiliary equipment information, online detection data and fire information, and the service information interaction characteristics include power grid operation status, equipment operation status, message alarm, control operation, etc. By pre-corresponding the substation equipment information with the service information interaction characteristics, a correspondence between the preset substation equipment information and the service information interaction characteristics is formed, and then based on the substation equipment information, the service information interaction characteristics corresponding to the substation equipment information can be obtained. In the present invention, different message queues are selected to send corresponding data according to different reasons for sending real-time messages, and this process increases the reliability of data transmission. Because the scale of real-time data sending is large, in order to ensure the sending efficiency of real-time data, the present invention adopts a low-speed message queue to send when the sending reason is periodic sending, and adopts a high-speed message queue to send when the sending reason is non-periodic sending, so as to ensure that when the sending reason is non-periodic sending (that is, when the sending reason is burst sending), the data can be sent in time, thereby improving the efficiency of data transmission. That is, through the design of the interactive strategy scheme in this embodiment, a customizable interactive strategy service is realized based on the communication service standardized by DL / T860-CMS, that is, the client can customize the real-time access class interactive strategy to the server according to the user and business needs, and realize the on-demand efficient transmission of multi-business real-time class service data.

[0046] Master station access method embodiment of substation:

[0047] The method of this embodiment obtains the service-oriented information interaction characteristics corresponding to the substation equipment information according to the obtained substation equipment information and the correspondence between the preset substation equipment information and the service-oriented information interaction characteristics; when the real-time message sending reason of the service-oriented information interaction characteristics is periodic sending, the data to be sent in real time is sent using a low-speed message queue, and when the sending reason is non-periodic sending, the data to be sent in real time is sent using a high-speed message queue; the interaction mechanism of the real-time access service is selected according to the real-time requirements, and the data is transmitted according to the corresponding interaction mechanism. In this embodiment, through the design of the interaction strategy scheme, a customizable interaction strategy service is implemented based on the DL / T860-CMS standardized communication service, that is, the client can customize the real-time access interaction strategy to the server according to the user and business needs, and realize the on-demand and efficient transmission of multi-business real-time service data. Specifically, the steps of the master station access method of the substation have been introduced in detail in the master station access system embodiment of the substation, and will not be repeated here.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A master station access method for a substation, characterized in that: The steps include: 1) According to the acquired substation equipment information and the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the substation equipment information are obtained; 2) When the reason for sending the real-time message of the service-oriented information interaction feature is periodic sending, the data to be sent in real time is sent using a low-speed message queue; when the reason for sending is aperiodic sending, the data to be sent in real time is sent using a high-speed message queue; 3) Select the interaction mechanism of the real-time access service according to the real-time requirements, and transmit the data according to the corresponding interaction mechanism.

2. The master station access method of a substation according to claim 1, characterized in that: In step 2), if the data to be sent up in real time is multi-service real-time data, the data to be sent up is sent up by using a corresponding message queue in a multi-channel concurrent outbound manner.

3. The master station access method of a substation according to claim 1, characterized in that: In step 2), if the data to be uploaded in real time is data retrieved from a dynamic data set, the corresponding data in the dynamic data set will be deleted after the corresponding data upload is completed.

4. The master station access method of a substation according to claim 1, characterized in that: In step 2), it is first determined whether the data to be sent is real-time data according to the data interaction type. If it is real-time data, the reason for sending the real-time message of the real-time data is then determined.

5. The master station access method of a substation according to claim 4, characterized in that: If the data interaction type is telemetry or telesignaling interaction type, the data to be sent is real-time data; if the data interaction type is remote adjustment or remote control data type, a high-speed message queue is used to send the data to be sent.

6. A master station access system for a substation, characterized in that: The invention comprises a memory and a processor, wherein the processor is used to execute instructions to implement the following method steps: 1) According to the acquired substation equipment information and the correspondence between the preset substation equipment information and the service information interaction characteristics, the service information interaction characteristics corresponding to the substation equipment information are obtained; 2) When the reason for sending the real-time message of the service-oriented information interaction feature is periodic sending, the data to be sent in real time is sent using a low-speed message queue; when the reason for sending is aperiodic sending, the data to be sent in real time is sent using a high-speed message queue; 3) Select the interaction mechanism of the real-time access service according to the real-time requirements, and transmit the data according to the corresponding interaction mechanism.

7. The master station access system of a substation according to claim 6, characterized in that: In step 2), if the data to be sent up in real time is multi-service real-time data, the data to be sent up is sent up by using a corresponding message queue in a multi-channel concurrent outbound manner.

8. The master station access system of a substation according to claim 6, characterized in that: In step 2), if the data to be uploaded in real time is data retrieved from a dynamic data set, the corresponding data in the dynamic data set will be deleted after the corresponding data upload is completed.

9. The master station access system of a substation according to claim 6, characterized in that: In step 2), it is first determined whether the data to be sent is real-time data according to the data interaction type. If it is real-time data, the reason for sending the real-time message of the real-time data is then determined.

10. The master station access system of the substation according to claim 9, characterized in that: If the data interaction type is telemetry or telesignaling interaction type, the data to be sent is real-time data; if the data interaction type is remote adjustment or remote control data type, a high-speed message queue is used to send the data to be sent.

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