农村配电网无触点自动重合闸控制器的设计

Design of Contactless Autoreclosing Controller for Rural Distribution Network

针对目前农村电网负荷分散,供电半径长,线路维护量大,架空线路易受雷击、鸟、大风等自然外力影响的特点,考虑到电磁型重合闸自动化程度低、可靠性差、分合时间长、体积大、耗能高等不足,设计了一种基于晶闸管的电力电子重合闸装置,该装置采用89C51作为核心控制单元,利用晶闸管的无触点特性,减小了重合器的合、断时间,提高了控制的可靠性.此装置具有结构简单、价格低廉、可靠性高、体积小、功耗低,易于与计算机实现接口控制等诸多优点,其应用对提高农村配电网的性能有积极意义.

For the features of present rural power grids,such as loads scattered,long radius of power supply,heavy maintenances of the line,aerial lines affected vulnerably by lightning,birds,wind and other natural external factors,and taking consider of the shortcomings of electromagnetic reclosing relay,such as low degree of automation,poor reliability,long division,bulky and high energy consumption,a kind of reclosing based on thyristor is proposed.This design uses 89C51 for the center of the controllor unit,takes ...