Resistance Coefficient Identification Of Heating Network Based On Improved Genetic Algorithm

The identification of resistance coefficient of heat supply network is the key technology in the construction of hydraulic calculation model of heat supply network,and it is the key to improve the practical application value of relevant research on heat supply network.The problem of resistance coefficient identification is a multidimensional,non-linear and large exploration space difficult optimization problem.At present,the common optimization algorithm has some difficulties in this problem.Therefore,this paper focuses on the core problem of resistance coefficient identification of heating network,focusing on the improvement of optimization algorithm,and designs an improved genetic algorithm that meets the needs of the project.The main research work of this paper includes:1.According to the characteristics of resistance coefficient identification problem and the existing problems of genetic algorithm,a three parent cross genetic algorithm based on auxiliary individuals is proposed,and the performance of the algorithm is verified by experiments.Several different test functions are used to compare the improved algorithm and the existing algorithm,and the advantages of the improved algorithm in search balance and search success rate are verified.2.The improved genetic algorithm is applied to the resistance coefficient identification of heat supply network,the steps of combining the genetic algorithm with the problem are analyzed,and the specific process,coding scheme and constraint condition processing method of using the genetic algorithm to identify the resistance coefficient of heat supply network are given.Finally,the optimization identification experiment is carried out through two cases,and the experimental results show that the improved genetic algorithm is proposed The algorithm has some advantages in solving the problem of resistance coefficient identification of heating network.3.According to the actual demand of heating network,the visualization platform of heating network is developed.The design and establishment process of GIS database is given.The function demand of the system and its logical relationship are analyzed in detail.The realization thought of hydraulic calculation and resistance coefficient identification function in the software is described emphatically.The interface design of the software is given.Finally,the function of the software is demonstrated through a case.