农村小型循环沼气工程是中国“十三五农业循环沼气工程”的3项工程建设之一,但是,现存在户用沼气池闲置率高的严重问题,需建立可靠性高的仿真模型,仿真提高户用沼气池使用率的对策效应.而如何实现还原论与整体论相结合的原则建立系统动力学仿真模型,如何实现更有效的检验方法提高模型的可靠性又是待深入研究的重要问题.针对上类问题,首先,给出子系统仿真定理,结构行为检验的内涵,新建“逐层增枝结构行为检验建模法”的步骤.接着,根据新建模法,建立农村小型循环沼气工程系统普遍存在的户数-原料-沼气-沼液种植入树T1(t)-T7(t)七棵前期流率基本入树,分3次进行结构行为检验,构建可靠性高的第一部分前期流率基本入树模型,通过参数组合仿真此第一部分入树模型,揭示出工程未来发展存在的进度慢、气待开发增、种下降3大问题.然后,针对此3大问题,提出新增户沼气服务技工人员和建立技术人员工资及服务费保障机制2条新措施,针对新措施又新建立2棵入树,并新增加后2棵入树对前7棵入树的流率的3条技工影响反馈枝,构成户-原-沼-种-技-投入树T1(t)-T9(t)九棵流率基本入树模型.通过仿真九入树模型,揭示新措施实施对工程未来解除问题的好效果.论证了2个新措施的正确性,建立了“通过政府、高校研究部门、服务技术员、企业、农户5个子系目标责任的实现,实现户用沼气池工程发展的总目标”的管理原理.研究新建立了一种通过增枝的提高模型可靠性、增强操作性、降低建模难度的建模法.
Rural small cycle biogas project is one cycle project of biogas in China. Rural small cycle of the 3 engineering in 13th Five-Year the agricultural engineering is a project of ecological industry feedback mutual promotion. Aiming at the serious problem of household biogas pool with high vacancy rates, the paper makes modeling and simulation research of rural small cycle biogas project and ecological industry feedback mutual promotion and development, in order to promote the implementation of small~scale rural biogas project policy as soon as possible. This paper documents a new modeling method of structure behavior inspection added branches tree by tree based on feedback control by way of simulation. First of all, according to the 13th Five-Year Plan regarding the Agricultural Cycle Biogas Engineering in Jiangxi province, focusing on the collaborative development, construction and utilization of micro energy systems, to carry out the construction of household biogas digesters idle reenable system engineering. Then, accord- ing to a new modeling method of structure behavior inspection added branches tree by tree representing the cooperative development system of rural small scale biogas project, we employ seven model components Tl(t) -TT(t) each containing one stock and associated flows, they are divided into 3 layers of structure behavior test and high reliability flow rate in-tree model is built. Through the combination of parame- ters into the pre simulation tree model. Thirdly, according to the simulation results it reveals the future development of the 3 main problems~ puts forward 2 new measures and establishes new 2 in-tree and the new increase in the tree into the tree flow rate of the 3 feedback branches, composed of T1(t) -T9(t) nine flow rate basic in-tree model. Through the parameter combination simulation nine in-tree model, it compares the results before with after the implementation of new, it reveals good results of the new measures to implement the project in the future. This paper