二滩水电站计算机监控系统问题分析与改造

发布时间：2018-12-10 06:33

【摘要】：随着我国经济的快速增长,社会对能源尤其是电力的需求也相应增加,这也促进了电力工业的迅猛发展。随着电网规模的逐渐增大,以及日益严峻的网络安全形势,对发电企业供电的安全性、可靠性、稳定性以及电能质量都提出了更高的要求,尤其对发电企业计算机监控系统提出了更高的要求。二滩水电站装机3300MW,是20世纪中国最大的水电站,目前二滩水电站依然是西南电网的主力电站,承担着调峰、调频等重要职责。二滩水电站从1998年开始投运,计算机监控系统也同期投运,至今已运行了十余年。自二滩水电站之后,国内相继建成一批大型甚至巨型水电站。本文从二滩水电站原计算机监控系统出现的缺陷、设备性能无法满足电力标准要求,以及系统的不可扩展性开始分析,分析了二滩水电站原计算机监控系统改造的必然性。接下来通过对计算机监控系统网络结构、上位机、下位机、AGC/AVC系统、水情通信、调度通信的改造技术可行性进行研究,找到了符合实际要求且安全可行的改造方案,并分析了改造工作中的重点和难点,列举了二滩水电站计算机监控系统改造的技术创新点。最后通过分析改造后计算机监控系统的技术优势,以及与原监控系统对比得到的性能提升指标,对计算机监控系统改造工作进行了评估,总结提炼了大型水电站计算监控系统安全改造技术策略。
[Abstract]:With the rapid economic growth of our country, the demand for energy, especially for electricity, has increased correspondingly, which has also promoted the rapid development of the electric power industry. With the increasing scale of power network and the increasingly severe network security situation, the security, reliability, stability and power quality of power supply enterprises are required higher. Especially for the power generation enterprise computer monitoring system put forward higher requirements. Ertan Hydropower Station is the largest hydropower station in China in the 20th century. At present, Ertan Hydropower Station is still the main power station in Southwest Power Grid, which is responsible for peak-shaving, frequency modulation and other important functions. Ertan Hydropower Station has been in operation since 1998, and the computer monitoring system has been in operation for more than ten years. Since Ertan Hydropower Station, a number of large and even giant hydropower stations have been built in China. This paper analyzes the defects of the original computer monitoring system of Ertan Hydropower Station, the equipment performance can not meet the requirements of power standards, and the inextensibility of the system, and analyzes the inevitability of the transformation of the original computer monitoring system of Ertan Hydropower Station. Then, by studying the feasibility of computer monitoring system network structure, upper computer, lower computer, AGC/AVC system, hydrologic communication and dispatching communication, we find a safe and feasible reconstruction scheme that meets the practical requirements. The key points and difficulties in the reconstruction work are analyzed, and the technical innovation points of the transformation of the computer monitoring system of Ertan Hydropower Station are listed. Finally, by analyzing the technical advantages of the computer monitoring system after the transformation, and comparing with the original monitoring system, the improvement work of the computer monitoring system is evaluated. This paper summarizes and refines the technical strategy of safety reformation of large-scale hydropower station calculation and monitoring system.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP277

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