流体机械

2017, v.45;No.543(09) 1-6

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增压泵组的节能优化研究
Research on Energy-saving Optimization of Parallel Pumping System

蒙晨;杨帅;武鹏;吴大转;
MENG Chen;YANG Shuai;WU Peng;WU Da-zhuan;Zhejiang University;

摘要(Abstract):

对增压泵组变压节能供水模式的实现方式和控制逻辑进行了理论分析和试验验证。构建一种以PLC和变频器相结合的控制系统,建立变压控制泵组的节能控制模型,包括管网系统用水需求预测模型、变压控制模型以及能效判据为主导的增减泵控制模型等,进而实现增压泵组的变压控制和节能运行。试验结果表明,控制模型的用水需求预测准确性可达90%以上,且敏感性较高;能效优化方案可有效改善泵组控制效果并能提高泵组能效。研究结果可为增压泵组节能运行及变压控制系统的设计提供参考。
This paper is aimed at the realization method and control logic of variable-pressure and energy-saving water supply strategy for parallel pumps by theoretical and experimental research. The PLC, combined with frequency converters, has been used as control-system of the new control strategy. In addition, the intelligent variable-pressure control was realized by modeling water demand estimation for piping system, variable-pressure control and the pump increased or decreased control, based on energyefficiency condition. Suggested by the experiment results, the water demand estimation model is reliable with high sensibility and accuracy up to 90%. Besides, the control effect and energy-efficiency of pumps are improved effectively owing to the optimization control strategy. The obtained results can be referred by both the energy-saving optimization of parallel pumping system and the development of variable-pressure water supply mode.

关键词(KeyWords): 增压泵组;变压供水;节能优化;性能预测;控制模型
parallel pumping system;variable-pressure water supply;energy-saving optimization;performance estimation;control model

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基金项目(Foundation): 中国博士后科学基金项目(2016M601939)

作者(Author): 蒙晨;杨帅;武鹏;吴大转;
MENG Chen;YANG Shuai;WU Peng;WU Da-zhuan;Zhejiang University;

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