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学号2010302540103
密级________________
武汉大学本科毕业论文
110kV变电站电气一次系统设计
院(系)名 称:电气工程学院 专 业 名 称 :电气工程与自动化 学 生 姓 名 :王睿
指 导 教 师 :彭辉 副教授
二○一六年六月
BACHELOR'S DEGREE THESIS
OF WUHAN UNIVERSITY
The Primary Design of 110kV Substation
College :School of Electrical Engineering Subject :Electrical Engineering and Automation Name :WangRui
Directed by :PengHui Professor
June 2016
郑 重 声 明
本人呈交的学位论文,是在导师的指导下,独立进行研究工作所取得的成果,所有数据、图片资料真实可靠。尽我所知,除文中已经注明引用的内容外,本学位论文的研究成果不包含他人享有著作权的内容。对本论文所涉及的研究工作做出贡献的其他个人和集体,均已在文中以明确的方式标明。本学位论文的知识产权归属于培养单位。
本人签名: 日期:_______________
摘 要
变电站在电力系统中担任着非常重要的作用,它影响着整个电力系统的稳定性以及经济性,是发电厂与用户之间必不可少的中间部分,起着变换和调配电能的主要作用。其中,变电站电气主接线是变电所的主要的部分,主接线的设计直接关系到变电站高压电气设备、配电装置的选择和布置、继电保护和自动装置的选择,这些选择是变电站电气一次部分投资量的决定性的因素。
在本次设计中,我拟建设一座110kV-10kV降压变电站,首先根据主接线的经济可靠、运行灵活的要求选择各个电压等级的主接线方式,在技术和经济量方面进行简单的对比,选取出即灵活又经济的主接线方式。然后再进行短路电流的计算,接着根据各短路点计算短路稳态电流和短路冲击电流,再根据各电压等级的额定电压和最大持续工作电流进行对所选设备的效验。最后根据仿真来完成本设计的验证。
关键词: 变电所;变压器;电气主接线;短路电流;电气设备
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Abstract
The know-why the learns,real circumstances of this engineering of combination are
used,the analysis conscientiously careful by way of to the primary sources,as well as short circuit calculation to decides on the scheme.The selection of the electric owner grasping the transformer substation wiring scheme,the mould selecting of major electric installation,the selection of main transformer platform number,capacity and model,as well as the various protections are surely calmly.
Define finally this 110kV transformer substation electric owner’s wiring diagram,and accomplishes the preliminary design to the 110kV transformer substation.Designing by way of this,I have had a more overall understanding to the design of transformer substation,and makes me learn,not only the reliability will fully be thought over in the engineering designation and the flexibility,and still more will give consideration to many things economy,long-range nature and technical.
Key words : transformer substation
;
transformer
;
power load
;
the electricity main-wiring ;the short-circuit current ;electricity equipment
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