On the base of analyzing some kinds of integerated simulation software including mms ， using for reference the idea of modular modeling ， and basising the characteristic of the thermal system ， this paper rationally compartmentalized the system ， established mathematics model ， developed and encapsulated the models ， designed all - purpose algorithm - gear which can resolve system ' s rigidity ， algorithm - jacobi and subroutine for genetating new variable and big matrix 本文对国内一些主要的一体化仿真软件做了比较详尽的分析，在深入分析著名仿真建模软件mms的基础上，根据热力系统实际设备的特点，对系统以设备为基础进行模块划分，并建立模块的数学模型。采用compaqvisualfortran6 . 1作为开发工具，开发了包括热力系统常用设备动态模型的模块，形成模型库。
