Multi-step concept of the process of building a macromode

Building a macro and micro model of multistage process is considered using the decomposition method, dividing general technological system into interconnected control loops. A procedure for constructing an integrated material balance equations each loop, two-level mathematical complex system, developing principles modeling systematizing element models, degree aggregation, in general, controlling properties resource, calculating schemes reduced to solving algebraic equations, modern scheme processing (SME). resources cannot be carried out without returning circulating products when product from subsequent nodes sent revision head scheme. The SME s at two stages considered. task find optimal solutions original by interconnecting conditionally - individual models. comparison various formal methods performed according previously determined criteria, on this basis, most preferable chosen. When multidimensional systems, one has operate with factors that have different units measurement. Therefore, it advisable determine dimensionless since easily analyzed. use latest tools flexible equation mainly determines prospects such studies.