CN-121984215-A - System and method for multi-service access of electric power secondary equipment

CN121984215ACN 121984215 ACN121984215 ACN 121984215ACN-121984215-A

Abstract

A system and method for multi-service access of electric power secondary equipment comprises a service data interface module, a service data integrated transmission engine module, a service data processing module and a system interconnection module, wherein the service data interface module interacts various service data with the outside of the equipment, the system interconnection module interacts service data with other systems in the equipment, the service data integrated transmission engine module gathers data from the outside and the inside of the equipment and sends the data to the corresponding service data processing module, and meanwhile, the service data processed by the service data processing module is sent to the service data interface module and is output to the outside of the equipment or is sent to the system interconnection module and is output to other systems in the equipment. The invention can realize flexible access of various business data and data sharing among multiple systems.

Inventors

JIANG LEI
XIA YU
TENG XIANLIANG
YAO GANG
YANG SHUO
HU GUO
LIU ZHENG

Assignees

国电南瑞科技股份有限公司
国电南瑞南京控制系统有限公司

Dates

Publication Date: 20260505
Application Date: 20260129

Claims (10)

1. A system for multi-service access of electric power secondary equipment is characterized by comprising a plurality of service access units, wherein each service processing unit comprises a plurality of service data interface modules, a plurality of service processing modules, a plurality of system interconnection modules and a service data comprehensive transmission engine module, the service data interface modules, the service processing modules and the two system interconnection modules are all connected with the service data comprehensive transmission engine module, each service access unit is respectively in communication connection with two adjacent service access processing units through the two system interconnection modules to form an annular interconnection structure, the service data interface modules are used for acquiring various service data outside the electric power secondary equipment, the service data comprehensive transmission engine module is used for transmitting the various service data acquired from the service data interface modules to the corresponding service data processing modules, transmitting the various service data transmitted by the service data processing modules to the corresponding system interconnection modules or the service data interface modules, and transmitting the various service data transmitted by the system interconnection modules to the corresponding service data processing modules.
2. The system for multi-service access of a power secondary device of claim 1, wherein: The connection interfaces among the service data interface module, the service data integrated transmission engine module and the system interconnection module of each service processing unit comprise handshake signals, the handshake signals comprise service data types, and the service data integrated transmission engine module transmits various service data to the corresponding service data processing module for data processing according to the service data types.
3. The system for multi-service access of a power secondary device of claim 2, wherein: the service data comprehensive transmission engine module transmits various service data to the corresponding service data processing module according to the service data type for data processing, and comprises the following steps: analyzing the service data type according to the handshake signals, and inquiring whether the service data interface module has service data or not; reading the service data from the service data interface module under the condition that the service data interface module has the service data; Selecting a candidate business data processing module according to the business data type, and calculating the capability value of the candidate business data processing module for processing data according to the memory, the energy consumption, the calculation speed and the processable data of the candidate business data processing module; and determining a corresponding service data processing module from the candidate service data processing modules according to the data quantity, the priority and the capability value of the candidate service data processing modules for processing the data.
4. A system for multi-service access of a power secondary device according to claim 3, characterized in that: determining a corresponding service data processing module from the candidate service data processing modules according to the data quantity, the priority and the capability value of the candidate service data processing modules for processing the data, wherein the method comprises the following steps: multiplying the priority of the service data by the capability value of the candidate service data processing module for processing the data when the data volume of the service data is smaller than or equal to the maximum processable data volume of the candidate service data processing module; and selecting a candidate service data processing module corresponding to the maximum product to process the service data with the highest priority.
5. A system for multi-service access of a power secondary device according to claim 3, characterized in that: Determining a corresponding service data processing module from the candidate service data processing modules according to the data quantity, the priority and the capability value of the candidate service data processing modules for processing the data, and further comprising: Dividing the data volume of the service data by the maximum processable data volume of the candidate service data processing module to obtain the number m of split data blocks when the data volume of the service data is larger than the maximum processable data volume of the candidate service data processing module, calculating the product of m-1 and the maximum processable data volume, calculating the difference between the data volume of the service data and the product to obtain the data volume of the mth data block, and dividing the data volume of the service data into m data blocks; The priority of the service data before splitting is reduced by one level to be used as the priority of m data blocks.
6. A system for multi-service access of a power secondary device according to claim 3, characterized in that: Selecting a candidate business data processing module according to the business data type, and calculating the capability value of the candidate business data processing module for processing data according to the memory, the energy consumption, the calculation speed and the processable data of the candidate business data processing module, wherein the method comprises the following steps: Normalizing the memory, the energy consumption, the calculation speed and the processable data quantity of each candidate business data processing module to obtain a corresponding normalization value; calculating the ratio of the normalized value of the memory of each candidate service data processing module to the normalized value of the energy consumption to obtain a first ratio; and carrying out weighted summation on the first ratio of each candidate business data processing module, the normalization value of the calculation speed, the normalization value of the processable data quantity and the corresponding weight coefficient thereof to obtain the capability value of each candidate business data processing module for processing the data.
7. The system for multi-service access of a power secondary device of claim 2, wherein: The service data comprehensive transmission engine module transmits various service data to the corresponding service data processing module according to the service data type for data processing, and the service data comprehensive transmission engine module further comprises: When the data processing module of the data type service corresponding to the service data to be transmitted is not matched in the service access unit, judging that the memory of the service access unit is larger than a preset space threshold; If the memory of the service access unit is larger than the preset space threshold, the data processing module is added to process the service data to be transmitted, otherwise, the service data with the priority lower than the priority of the service data to be transmitted in the process is suspended, the service data to be transmitted is processed preferentially, or the service data of the type is discarded, and a data type error alarm is generated.
8. The utility model provides a method for electric power secondary equipment multiservice access, is applied to the system that is used for electric power secondary equipment multiservice access, the system includes a plurality of business access units, each business processing unit includes a plurality of business data interface module, a plurality of business processing module, a plurality of system interconnection module and a business data integrated transmission engine module, wherein, a plurality of business data interface module, a plurality of business processing module, two system interconnection modules all link to each other with business data integrated transmission engine module, each business access unit is connected with two adjacent business access processing units communication respectively through two system interconnection modules, constitute annular interconnection structure, characterized in that, the method includes: The service data interface modules acquire various service data outside the electric power secondary equipment; The service data comprehensive transmission engine module transmits various service data acquired from the service data interface module to the corresponding service data processing module; the service data comprehensive transmission engine module transmits various service data transmitted by the service data processing module to the corresponding system interconnection module or the service data interface module, and transmits various service data transmitted by the system interconnection module to the corresponding service data processing module.
9. An electronic device comprises a processor and a storage medium, and is characterized in that: The storage medium is used for storing instructions; The processor is operative according to the instructions to perform the steps of the method as recited in claim 8.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method of claim 8.

Description

System and method for multi-service access of electric power secondary equipment Technical Field The invention belongs to the technical field of power equipment, and particularly relates to a system and a method for multi-service access of power secondary equipment. Background The secondary equipment of the power system mostly adopts a design mode of combining functions based on plug-ins, the plug-ins are independent functional units, and all the plug-ins are physically connected through a public backboard to form the system. And the back board buses are used as public data channels between the plug-ins, information transmission is realized through a communication technology, data interaction and sharing are completed, and a foundation is laid for information processing. The secondary equipment of the power system has basic service functions such as analog quantity acquisition, switching value signal acquisition, serial port communication, field bus, ethernet communication and the like for realizing advanced application functions. These functions are finally realized by the core data processing module of each plug-in, and various service data need to be collected to the core data processor module to obtain final processing. In practical application, various service data access forms and quantity are different, such as analog data service access through a plurality of ADC chips, switching value data access through an interface chip, ethernet service data access through a plurality of media independent interfaces, and the like. Meanwhile, data interaction is also carried out among the plug-ins, and the services also need to be accessed into a core data processing module. The carrier of the core data processing module is generally a central processing unit, the central processing unit does not have interfaces required by certain service access or the number of interfaces meeting the access requirement is insufficient, and the central processing unit of the computer cannot always directly access the service data due to the diversity of service data access of the power secondary equipment. In practice, the secondary equipment of the power system usually makes an access scheme according to specific services, and various peripheral devices of the central processing unit are accessed by using service data, so that the secondary equipment has the defects of multiple interface types, complex peripheral device circuits and poor software module reusability. When the CPU is updated, the software and hardware are difficult to transplant. Therefore, a new power secondary device multi-service access scheme is needed. The prior art document 1 (CN 201110173855.0) discloses a general platform of an electric power measurement and control device and a control method, wherein a central processing unit module is used for connecting 1 communication module, 1 data acquisition module and 1 control output module to realize service data access. Disclosure of Invention In order to solve the defects in the prior art, the invention provides a system and a method for multi-service access of power secondary equipment, which can adapt to different types and different numbers of data access, provide a standard framework for the power secondary equipment with different types of data access, are not limited by peripheral interface resources of a central processing unit, have low requirement on the type selection of the central processing unit, reduce the difficulty of transplanting software and hardware when the central processing unit is upgraded, and reduce the application iteration period of the system. The invention adopts the following technical scheme. The invention provides a system for multi-service access of electric power secondary equipment, which comprises a plurality of service access units, wherein each service processing unit comprises a plurality of service data interface modules, a plurality of service processing modules, a plurality of system interconnection modules and a service data comprehensive transmission engine module, the plurality of service data interface modules, the plurality of service processing modules and the two system interconnection modules are all connected with the service data comprehensive transmission engine module, each service access unit is respectively in communication connection with two adjacent service access processing units through the two system interconnection modules to form an annular interconnection structure, the plurality of service data interface modules are used for acquiring various service data outside the electric power secondary equipment, the service data comprehensive transmission engine module is used for transmitting the various service data acquired from the service data interface modules to the corresponding service data processing modules, transmitting the various service data transmitted by the service data processing modules to the corresponding system interconnection mod