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离心泵站安全经济运行研究
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摘要
泵站工程在我国工农业生产中发挥着重要的作用。我国西北高扬程泵站大多采用离心泵,由于种种原因,综合考虑安全运行与经济运行的“泵站机组启停决策支持系统”尚少有研究,在泵站实施计算机监控之后这类问题已是不可回避的问题。确保这类泵站安全经济运行有着重要的意义。
     泵站机组启停决策支持系统是在泵站监控系统基础上提出来的。它充分利用了计算机系统所具有的数据处理、模型处理及分析能力,通过人机交互系统,帮助运行人员对机组的合理启停作出决策。
     文中首先分析了泵机组装置的主要性能参数和技术经济指标以及优化调度的数学模型。接着对泵站机组启停决策支持系统的目标、结构和功能做了分析,建立了决策所需要的数据库、模型库和知识库。针对泵站机电设备性能状态评价中涉及到大量的模糊信息,引入模糊数学的处理方法,利用专家和运行人员的经验,对评判指标进行量化、度量和评判,通过推理模型和满意度计算模型,得出机组的综合满意度,在此基础上,对机组的启停进行合理决策。这种决策方案充分考虑了机组的安全性、经济性指标,从总体上达到了泵站运行的最优化。
     泵站机组启停决策支持系统是灌区优化调度决策支持系统的一个组成部分,论文最后,结合灌区的优化调度与泵站机组启停决策支持系统之间的关系进行了研讨,并对大型灌区的信息化建设进行了介绍。
Pumping station project plays an important role in industrial and agricultural development of China. In our northwest region, centrifugal pump are widely adopted in high-lift pumping station and for various reasons, few research has been done on the "pumping station unit commitment decision support system" with consideration in secure and economic operation. While it came to an unavoidable question after the implementation of computer monitoring control system. To assure the secure and economical operation of this kind of pumping stations has significant meanings
    On the foundation of pumping station monitoring system, pumping station unit commitment decision support system (PSUCDSS) was put forward. It has fully utilized the data and model processing as well as analyzing ability of computer system with the purpose of helping the operator make rational decision about unit commitment by man-machine interactive system.
    Firstly, this paper analyzes the main performance parameters, technical economical indices and optimized dispatching mathematical model of pumping unit. Afterwards, the goal, structure and function of PSSEDSS are analyzed and the data base, model base, knowledge base necessary for decision-making are set up as following. Fuzzy mathematics treatment method is introduced for the large amount of fuzzy information
    
    
    mathematics treatment method is introduced for the large amount of fuzzy information involved in the performance state evaluation of pumping station electromechanical equipment with the experiences of the experts and operators, thus the evaluation indications are quantified, measured and evaluated through reasoning model and satisfaction calculating model, with which, the comprehensive satisfaction of pump unit is determined and provides a basis for the rational decision-making of unit commitment. With fully consideration on the unit's secure and economical indices, the decision-making scheme achieves the optimal operation of pumping station as a whole. PSUCDSS is a component part of optimized dispatching DSS of irrigation area. In the end of this paper, the relation between optimized dispatching DSS of irrigation area and the PSUCDSS is discussed and the informatization construction of large-scale irrigation area is introduced.
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