摘要
一个高阶模型Ｇ（Ｓ）－Ｋ０／（ＴＳ＋１）＾ｎ可以在运行状态及边界条件下通过拟合，简化成确定性模型Ｇτ（Ｓ）＝＾Ｋ０ｅ＾－τｓ／（＾ＴＳ＋１）或不确定性模型＾Ｇｔ（Ｓ）＝＾Ｋ０ｅ＾－（＾τ±Δ＾τ）ｓ／［（＾Ｔ±Δ＾Ｔ）Ｓ＋１）］。文中研究这种模型简化和方法。仿真试验表明：这种方法可以广泛应用于仪表及其系统分析与设计。
By using fitting method a high order model G( S) = K0/( 75 + 1) n can be simplified into determined model Gτ (S) = K0e-τs/(TS + 1) or undetermined model Gτ(S) = K0e-(τ±Δx)s/[(T±ΔT)S+1] under operating status and boundary conditions. The principle and the method for simplifying the model are studied in this paper. The result of simulation test shows that the method can be used widely in analysis and design of instruments and systems.
出处
《自动化仪表》
CAS
北大核心
1999年第2期8-10,14,共4页
Process Automation Instrumentation
关键词
模型简化
鲁棒分析
数学模型
边界条件
运行点
Simplification of the model Robustness analysis Boundary condition Model
