Algorithm for the multi-loop optimization method based on multilevel decomposition of heat supply system model

The article presents a new effective algorithm for the multi-loop optimization method, which allows us to solve the problem of determining optimal parameters for systems with a loop configuration. The new algorithm makes it possible to overcome the difficulties associated with their large dimension by hierarchical decomposition of the heat network model. The problem under consideration is to find the optimal diameters of pipelines, the parameters of pumping stations and the optimal flow distribution in the network. Thus, Energy Systems Institute SB RAS has developed the multi-loop optimization method based on the principle of step-by-step improving the solution. An important advantage of this method is that it allows us to flexibly customize the computational procedure to the peculiarities of the simulated system. Real heat supply systems usually have a hierarchical construction and consist of networks that have a loop part and tree branches. This feature of heat supply system construction has been used in development of a new algorithm for the multi-loop optimization method, which significantly reduces the number of calculations and counting duration without losing the accuracy of the obtained results.