一种实时快速热力系统仿真方法的研究  

A Rapid and Real-Time Simulation Method for Thermodynamic Simulation

作　　者：马文通[1] 余南华[1] 苏明[1] 

机构地区：[1]上海交通大学动力机械与工程教育部重点实验室,上海200030

出　　处：《计算机仿真》2006年第7期87-89,104,共4页Computer Simulation

基　　金：国家自然科学基金(5997022)

摘　　要：在热力系统的仿真中,如何提高仿真计算速度并保证系统稳定性,成为提高仿真性能的一个重要环节。基于现有的研究基础上,该文通过详实的数学分析,提出了一种改进仿真性能的方法。通过对系统中最快响应环节的状态方程右函数变化趋势进行预测,在Eu ler法基础上将局部精度提高到二阶,从而使整个系统的仿真步长有效地增加并保证系统的稳定性。文中还通过一个典型示例进行了仿真验证。仿真结果表明该改进方法在保证系统稳定的前提下可以使仿真步长增大一倍以上。In the thermodynamic simulation of power systems, it＇s important to increase the speed and stability to enhance the performance of simulation system. Based on the open literatures, a novel modified method is developed in this paper. Through predicting the tendency of the right - function of the fastest response differential equation in the simulation system, the reduced miscalculation, the increased time step size and the satisfied requirements of real - time simulation are presented. This novel method has testified the validity of improving the performance of simulation system by successful application in thermodynamic simulation.

关 键 词：数学建模 仿真 步长 小容积 

分 类 号：TK472.6[动力工程及工程热物理—动力机械及工程]