摘要
研究了火电厂仿真中具有代表性的惯性环节动态数学模型的计算方法。对数值解的稳定性进行了研究。通过理论分析和数学推导，找出影响计算精度的动态因子，从而获得能够充分逼近解析解的方法。给出了隐式欧拉方法和梯形方法使用条件的判定准则。对梯形方法的振荡现象进行了研究，得到了相应的判据。
Studied in this paper are the computational
methods of dynamic mathematical model for typical inertia components in the simulation of
thermal power plants, and also the stability of numerical solutions. Through a theoretical
analysis and mathematical derivation the dynamic factors affecting calculation precision have
been identified, thereby acquiring a method for realizing a fully approximating analytical
solution. A criterion is given for determining the use conditions of implicit Euler method and
trapezoidal method. The oscillation phenomenon of trapezoidal method was studied and a
relevant criterion obtained.
出处
《热能动力工程》
CAS
CSCD
北大核心
1999年第3期208-211,共4页
Journal of Engineering for Thermal Energy and Power
关键词
火电厂
仿真培训器
数学模型
计算方法
动态因子
thermal power plant, simulation, mathematical model,
computational method, dynamic factor
