一种新型自适应备投方案及其实现

介绍一种按照备自投基本原理设计的备用电源自动投入的新方案。该方案按典型的变电站标准内桥接线方式设计．具有可靠性高、适应性强的特点．以桥备投方式的某一具体接线方式为例．对备用电源投切原理、投切特点进行了详细分析和说明。该装置采用先进的DSP芯片TMS320F240作为核心器件，集测量、保护、控制、通信、显示等功能于一体，自动跟踪变电站系统当前的运行方式．实时、可靠地完成备投逻辑。装置配有RS-232，RS-485．CAN现场总线及以太网通信接口．可适用于电力系统的多种接线方式。

Self-adaptive automatic bus transfer scheme and its realization

According to the basic principle of automatic bus transfer,a new scheme is presented,which is designed for the typical and standard inter-bridge connection of substations and is reliable and adaptive.With a certain connection mode as an example,the principle and characters of the automatic bus transfer are analyzed in detail.It integrates the functions of measuring,protec-tion,control,communication and display to automatically trace the present operating mode of substa-tion system and real-timely and reliably complete the transfer action logic.With the communication interfaces of RS-232,RS-485,CAN field bus and Ethernet,it is available for different connection modes of power system.