Modelica模型的相容初始化  

Consistent Initialization of Modelica Models

作　　者：丁建完[1] 周凡利[2] 陈立平[2] 

机构地区：[1]华中科技大学数学系,武汉430074 [2]华中科技大学国家CAD支撑软件工程技术研究中心,武汉430074

出　　处：《系统仿真学报》2007年第17期3930-3933,共4页Journal of System Simulation

基　　金：国家"八六三"高技术研究发展计划(2003AA001031);国家自然科学基金(60574053);国家重点基础研究发展规划项目(2003CB716207)。

摘　　要：基于Modelica语言建立的仿真模型可以映射为一个微分代数方程系统。求解微分代数方程系统需要为其设定初始值。简要介绍了Modelica语言,讨论了Modelica模型初始条件的设定方式,给出了隐含约束的获取方法,以及初始条件的相容性判定方法和相容初始值求解策略。给出实例表明了方法的有效性。Simulation model described by the Modelica language can be translated into a system of differential algebraic equations. It is necessary to provide some initial conditions before solving a DAE system. The Modelica language was briefly introduced, the way for specifying initial conditions for Modelica models was discussed, a method for obtaining the underlying constraints of a DAE system was proposed, the criterion for determining whether the initial conditions were consistent or not was given, and the strategy for solving the initialization equation system was proposed. The result achieved by applying the discussed method on an oscillator model was illustrated.

关 键 词：初始化 微分代数方程 仿真 多领域建模 MODELICA 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]