Abstract:The simultaneous optimization of pump station operation scheme and pipe network can improve the system operating efficiency furthest. Aiming at the multi-source and looped water injection system, a mathematical model for simultaneous optimization of operation scheme and pipe network is established, in which the start-up and stop status, displacement of pumps, and the connection status, diameter of pipelines are taken as design variables, the operating energy consumption and investment are served as objective function, and considering the constraint conditions of displacement, pressure, looped pipe network. Taking the features of the simultaneous optimization problem, a dual generalized chromosome coding was proposed to improve the existing genetic algorithm, and then was applied to solve the mathematical mode1. In the pump coding, the binary coding is adopted in the first row to indicate the start-up and stop status of pump, the real coding is adopted in the second row to present the displacement of pump. In the pipeline coding, the binary coding is adopted in the first row to indicate the connection status of pipeline, the integer coding is adopted in the second row to present the diameter of pipelines. Thus,an exact description of the optimization variables is realized. The method of initial solutions creating and many crossover and mutation methods that adapted to the optimize problem are designed, a part of constraint conditions are satisfied, so the number of infeasible solutions is reduced. An example is optimized by using the algorithm proposed, the results of simultaneous optimization compared with the results of pipe network optimization, the operating energy consumption is reduced by 4.66%, the investment of pipe network is reduced by 1.73%, showing simultaneous optimization has a remarkable energy saving effect.
杨建军, 高淑, 李庆堂. 多源环状注水系统泵站运行方案与管网同步优化[J]. 排灌机械工程学报, 2015, 33(7): 594-598.
Yang Jianjun, Gao Shu, Li Qingtang. Simultaneous optimization of pump station operation scheme and pipe network in multi-source and looped water injection system. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(7): 594-598.
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