110kV变电站综合自动化改造设计与研究

发布时间：2018-01-06 23:29

本文关键词：110kV变电站综合自动化改造设计与研究　出处：《华北电力大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着我国经济的快速增长,社会对电力的需求持续增加,电力供需矛盾越发显得紧张,为保障电力供应的有序进行,不断提高电力系统的安全性和可靠性就显得尤为重要。对老旧变电站进行综合自动化改造,有利于提高设备的自动化水平,改进变电站的运行管理模式,保障电力系统的安全性和可靠性,进一步夯实安全生产基础,具有积极的意义。本文针对沁阳变电站监控系统运行不稳定,保护元件老化,无专用蓄电池室,微机五防闭锁系统经常故障等问题,从安全性、效能与成本、政策适应性三个方面进行讨论分析,提出两种改造方案。方案一:进行智能变电站改造;方案二:进行常规模式综合自动化变电站改造。本文对这两种方案从安全、效能与设备全寿命周期成本方面进行比较,最终选择方案二为改造方案。方案主要对变电站系统保护部分、监控系统、元件保护与自动装置、图形网管机、直流系统和微机五防闭锁系统等进行了详细的设计。在改造工程完成后,通过对沁阳变电站新投入的综合自动化系统运行一段时期内电能质量等各项指标进行分析,并针对改造前后从管理效益、经济效益和社会效益进行对比,得出的各项指标分析和效益对比结果均表明改造后的变电站优于改造前的水平。同时通过对该项目的改造也为我公司以后在其他老旧变电站进行综合自动化改造工程提供经验及参考。
[Abstract]:With China's rapid economic growth, increasing social demand for electricity, power supply and demand contradictions become increasingly tense, for the protection of the power supply in an orderly manner, it is particularly important to improve the safety and reliability of power system. The integrated automation transformation of the old substation, is conducive to improve the level of automation equipment, operation and management mode improvement of substation, ensure security and reliability of power system, further strengthen safe production base, has a positive significance. According to the Qinyang substation monitoring system operation instability, protection component aging, no special battery room, microcomputer five anti lock system is often failure, from the safety, efficiency and cost, three the policy adaptability were discussed, put forward two kinds of transformation scheme: intelligent substation retrofit; scheme two: routine mode synthesis Comprehensive renovation of substation automation. Based on these two schemes are compared from the safety, efficiency and equipment life cycle cost, the final selection scheme for transformation scheme of substation protection system, monitoring system, component protection and automatic device, graphics management machine, DC system and microcomputer five anti lock system are presented. The detailed design in the renovation project is completed, the operation period of power quality indicators were analyzed by the integrated automation system of substation of Qinyang new investment, and for the transformation from before and after the management benefit, compared the economic benefit and social benefit, the benefit index analysis and comparing of the results showed that the substation is better than the reformation of the level before. At the same time through the transformation of the project for our company later in other old substation comprehensive automatic transformation The project provides experience and reference.

【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM63;TM76

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