A new type of distribution automation terminal based on modular configuration design

The design and development of the distribution automation terminal based on the modular configuration design is mainly to design the distribution automation terminal hardware according to the different functional requirements as independent hardware modules. The module can be any combination of rail installation, Module installation is no longer due to the traditional chassis structure of the distribution automation terminal due to the size of the chassis and the limited number of slots resulting in limited expansion, so the module type and quantity can be configured according to project requirements; The modules communicate with each other through a full-duplex high-speed bus based on the fast preemption mechanism of channel collision detection and the modules are plug-and-play. This paper mainly researches and expatiate the distribution automation terminal based on the modular configuration design from the aspects of hardware module classification and structure design, high-speed bus interface and communication mechanism design, module adaptive access design and so on, mainly including high-speed bus control technology , High-speed bus resource preemption based on collision detection, plug-and-play technology based on adaptive access, and other technical contents.