由结构图直接求取系统频率特性的算法、通用程序及其应用
An Algorithm and A General Program for the Direct Computation of Freguency Response Via Structure Diagram and Their Applications
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摘要: 本文介绍了用梅逊公式由结构图直接求取系统频率特性(奈氏图和闭环频率特 性)的一种组合计算方法.它适用于最小相位和含有纯滞后环节的非最小相位线性 定常系统.文中介绍了本程序在分析、综合调速系统中的应用.计算表明用本程序 计算速度快,无计算的原理性误差,为系统设计(特别是含有纯滞后时间较长的环 节的系统)提供了一个方便的工具.Abstract: In this paper, an algorithm and a general program for the direct computation of freguency response (Niqust diagram and closed-loop freguency response), using Mason's theorems and structure diagram, is presented. It is applicable to minimun-phase system and non-minimun-phase system with time delay. Application of this program in analysing and synthesizing a velocity regulating system is also introduced. The result indicates that the computation speed is relatively fast and that there is no principle error. It presents a convenient means for designing control systems, especially for long time delay systems.
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