Modular design method of unified platform of intelligent power distribution terminal

Abstract

The invention provides a modular design method of a unified platform of an intelligent power distribution terminal, wherein a DSP (Digital Signal Processor) processor processes real-time tasks and an ARM (Advanced Risc Machines) processor processes non-real-time tasks, so that the intelligent power distribution terminal has the capability of operating complex algorithms, and the data processing speed and precision are improved; a dynamic base comprising a protocol body, a database interface, a data receiving / sending cache region, a physical interface and a debugging cache region is created; the allocation information of peripheral equipment is stored in a historical database or a test document, and the reading-writing operation of the peripheral equipment is abstracted to an interface function in a dynamic base form; and a database is selected and a database interface function is added. A real-time database is applied to improve the processing speed of data management tasks, and the real-time database is used for realizing data share / interaction between a plurality of courses to realize the seamless butt joint of data interface between the courses, and the modular design method provided by the invention has high instantaneity, strong transportability, high stability and strong expandability.

Description

technical field [0001] The invention belongs to the technical field of power distribution network, and in particular relates to a modular design method for a unified platform of intelligent power distribution terminals. Background technique [0002] In the early 1990s in my country, some electric power automation companies began to develop distribution telecontrol devices with monitoring functions according to the requirements of distribution network monitoring. The realization of the distribution automation of the whole network has gradually transitioned from the timing setting and cooperation of the recloser to the FTU (Feeder Terminal Unit, feeder terminal) for fault detection combined with communication technology for fault isolation and non-fault area restoration of power supply. Some power automation enterprises have begun to develop power distribution terminals with fault diagnosis and processing functions to meet the feeder automation functions of centralized processi...

AI Technical Summary

Problems solved by technology

At present, the design of power distribution terminal platform mostly adopts single CPU and single process method. This design method cannot meet the requirements of future smart grid in terms of multi-tasking processing and real-time performance.

In addition, the traditional platform design method is a tightly coupled design method, which has poor scalability and low flexibility, and is only suitable for power distribution terminals with relatively fixed hardware platforms and single functions.

With the increase of terminal functions, the platform design becomes more and more complex, making software maintenance increasingly difficult

[0004] Traditional power distribution terminal data is stored in FLASH. The read and write speed of such storage media is much slower than that of RAM and other storage media, resulting in a large delay in data processing speed, especially when the data volume reaches hundreds of thousands or millions. When the number of bars is high, the database read and write speed will bring a second-level delay

This cannot be tolerated in power distribution terminals, especially in terminals with control functions. Too much delay may cause major production accidents

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