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| Numerical optimization on parallel-connection variable-speed operation of centrifugal pump groups |
| HAN Wei1, LI Ren-nian1, SU Min2, LI Qi-fei1, LI De-shun1 |
| 1.College of Fluid Power and Control, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China |
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Abstract The parallel-connection and variable-speed operation characters of the centrifugal pump groups are studied by conics fitting of the character curves in the high efficiency area.By simplifying the restrictions of pipeline,the optimization control model for the parallel-connection and variable-speed operation is given.The objective function of the model is minimum sum of all the pump power;the constrained condition is pump group system flow fate.The essence of the mathematical model is about extreme values for several variables function.The Lagrangian multiplier and Newton iteration methods for nonlinear equation group are used to solve the formulated model.The relevant calculation method of the optimization condition is given.The simulation result shows the validity of the new optimization strategy.
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Received: 08 August 2013
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| [1] 袁建平,袁寿其,何志霞.不同特性泵串并联系统的性能预测[J].排灌机械,2004,22(6):1-4[2] 袁云,俞赛峰,林磊.排水泵站变频节能的工程实践和机理初探[J].排灌机械,2006,24(5):25-28[3] Pezeshk S,Heiweg O J,Oliver K E.Optimal operation of ground-water supply distribution systems[J].Water Resources Management,1994,120(5):573-586[4] 韩伟,李仁年,苏敏.泵站离心式机组并联调速运行特性分析[J].排灌机械,2007,25(2):33-36[5] 张承慧,马永庆,钟麦英.离心式注水泵站变频调速系统效率优化控制[J].控制与决策,2003,18(6):744-746[6] 王涛,侯宝军,张言禾.用数值方法计算水泵并联运行工况点[J].西北水力发电,2005,21(10):164-169 |
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