新型电源快速切换方法的研究与实现

The Research and Implementation of a New Fast Bus Transfer Mode

快切装置支持不同的切换方法:快速切换,同相捕捉切换,残压切换等。快速切换在理论上是最优的切换方法。快速切换的切换速度越快,负荷断电时间越短,切换时对备用电源和电动机负荷造成的电流冲击和扭矩冲击越小。但在实际应用时,快速切换的定值难以整定,容易错过快速切换的时机。本文基于对母线残压特性和切换过程中冲击响应的研究和分析,提出了一种新型的基于残压特性预测的实时快速切换的方法,并且分析了实时快速切换的优缺点。

The fast bus transfer has different transfer models：fast transfer,in-phase transfer,residual voltage transfer etc.The fast transfer mode is preferred mostly because in theory it keeps the power interruption on the motor bus to a minimum,and this transfer operation ensures that motors and the loads are not subjected to excessive or accumulated stresses.But the fast transfer mode can not completely fulfill these requirements in practice.Based on the research and analysis of residual voltage and impact response,this paper introduces a new fast transfer mode,real-time fast transfer,which is implemented by forecasting the residual voltage characteristic.This paper also analyzes the advantages and disadvantages of real-time fast transfer mode.