大禹渡一级泵站电气设备优化选型及监控系统开发研究

发布时间：2019-04-22 08:20

【摘要】：泵站工程作为利用机电提水设备和配套建筑,给水增加能量,达到兴利除害的综合性系统工程。泵站工程担负着排水灌溉的重要任务,对国家的经济发展和保护人民的财产安全,具有重要的意义。泵站电气设计是泵站设计中的重要部分,关系着泵站机组能否安全运行。但目前我国大部分泵站在电气方面还是相当落后的,在电气控制上,自动化监控程度较低,在管理水平上,没有形成区域化的网络,在设备选型上,缺乏科学性。随着国民经济的快速发展,泵站电气设备的技术有了长足的进步,选择经济合理的电气设备以确保供水工程的安全稳定运行已成为该学科面对的重要课题。本文以探讨供水泵站电气设备的优化选型为目的,以大禹渡供水泵站一级站为研究对象,面向中国国情,探讨供水泵站建设和运行中的电气设计、设备选型及实现控制的技术,以期为未来供水泵站的电气设计提供技术支持。研究主要内容如下：1)供水泵站电气设计的研究现状分析；2)大禹渡供水泵站一级站电气设备的优化选型研究；3)大禹渡供水泵站一级站主接线的优化设计；4)结合太原理工大学供水实验室供水系统进行计算机监控系统的开发研究。对于主电动机,在考虑容量确定的基础上,重点选择无刷双馈电动机取代传统电动机,以降低调速系统、线路损耗和无功功率补偿装置的投资为主要目标；对于站用变压器的选型以冷却方式、接线型式、容量和台数确定为研究目标,根据泵站运行状况,在明确主接线型式的前提下,通过技术比较和经济比较确定最适合的方案。引进现代技术,以自动控制,少人值守或者无人值守为研究目标,将四合一微机集控装置与现代自动化技术相结合,以太原理工大学供水实验室供水系统为对象,进行开发研究。本论文研究主要结论：1)考虑到泵站水泵电机的数量及泵站运行工况,主接线采用6kV、0.4kV侧采用单母线分段接线方式,以期提高系统运行的可靠性,论文中提出采用单母线分段接线方式,结合了现代电力系统发展的要求,具有创新性.2)大禹渡泵站一级站变压器优化选型中,为了满足泵站电气设计安全、环保、节能、快速的要求,考虑到干式变压器具有较强的过载能力和耐雷冲击性能,且损耗低、节约资源、节省空间、维修方便,本论文选用全密封式变压器结构类型,接线方式采用三角形型式;3)结合太原理工大学供水实验室探讨供水泵站,引进现代技术,实现监控系统的数据采集和数据分析的结合,以期提高供水系统的管理水平,这一点是本研究的最大创新所在。泵站变压器选型中,研究接线方式对变压器工作的影响；随着自动化技术的引进,如果主接线能实现自动检测、自我修复,将会节约很大的人力物力,以上内容是本研究今后努力的方向。
[Abstract]:Pumping station project is a comprehensive system engineering which uses mechanical and electrical water-lifting equipment and supporting buildings to increase the energy of water supply and to benefit and eliminate the harm. Pumping station project takes on the important task of drainage irrigation, which is of great significance to the economic development of the country and the protection of people's property safety. The electrical design of pumping station is an important part of pumping station design, which is related to the safe operation of pumping station unit. But at present, most pumping stations in our country are still quite backward in the electrical aspect, in the electrical control, the degree of automatic monitoring is relatively low, in the management level, there is no regional network, in the equipment selection, lack of scientific. With the rapid development of national economy, the technology of electrical equipment of pumping station has made great progress. It has become an important subject for this subject to choose economical and reasonable electrical equipment to ensure the safe and stable operation of water supply project. The purpose of this paper is to discuss the optimal selection of electrical equipment of water supply pump station, to take the first stage station of Dayudu water supply pump station as the research object, and to discuss the electrical design, equipment selection and control technology in the construction and operation of water supply pumping station, facing the national conditions of China. In order to provide technical support for electrical design of water supply pump station in the future. The main contents of the study are as follows: 1) the current situation of electrical design of water supply pump station; 2) the optimization of electrical equipment selection of the first stage station of Dayudu water supply pump station; 3) the optimization design of the main connection of the first stage station of Dayudu water supply pump station; 4) based on the water supply system of Taiyuan University of Technology, the development and research of computer monitoring system are carried out. On the basis of capacity determination, the brushless doubly-fed motor is chosen to replace the traditional motor in order to reduce the investment of speed regulation system, line loss and reactive power compensation device. For the type selection of transformer for station, the cooling mode, connection type, capacity and number of stations are determined as the research objectives. According to the operation condition of pumping station, the most suitable scheme is determined by technical comparison and economic comparison on the premise of defining the main connection type. Introducing modern technology, aiming at automatic control, fewer people on duty or no one on duty as the research goal, combining the four-in-one microcomputer centralized control device with the modern automation technology, and taking the water supply system in the water supply laboratory of Taiyuan University of Technology as the object, Carry out research and development. The main conclusions of this paper are as follows: 1) considering the number of pump motors and operation condition of pump station, the main connection is 6 kV, and the 0.4 kV side is single bus segment connection, in order to improve the reliability of system operation. In order to meet the requirements of electrical design, environmental protection and energy saving, the paper proposes to adopt single busbar sectional wiring mode, combined with the requirements of modern power system development. 2) in order to meet the safety of electrical design, environmental protection and energy saving in the transformer selection of the first stage station of Dayudu pumping Station, Fast requirement, considering that dry transformer has strong overload capacity and lightning shock resistance, and low loss, saving resources, saving space, convenient maintenance, this paper chooses the structure type of fully sealed transformer, which has the advantages of low loss, saving resources, saving space and convenient maintenance. The wiring mode is triangle type; 3) combining with the water supply laboratory of Taiyuan University of Technology, this paper discusses the water supply pump station, introduces the modern technology, realizes the combination of data collection and data analysis of the monitoring system, in order to improve the management level of the water supply system. This is the biggest innovation of this study. In the selection of transformer in pumping station, the influence of connection mode on transformer operation is studied. With the introduction of automation technology, if the main wiring can realize automatic detection and self-repair, it will save a lot of manpower and material resources. The above content is the direction of this research in the future.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV675

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