直流输电系统可靠性评价方法及应用研究

发布时间：2018-06-06 08:06

本文选题：直流输电系统 + 可靠性评价　；参考：《华东理工大学》2013年硕士论文

【摘要】：随着直流输电技术在我国电力系统的发展,其可靠性水平的高低对电力系统的安全可靠运行影响逐渐增大。论文对我国直流输电可靠性背景及现状进行分析,指出目前可靠性评价管理工作存在的问题。论文应用全寿命周期管理(LCAM)理念,通过对可靠性与全寿命周期的关系分析,把可靠性管理延伸到系统的规划设计、物资采购和基建建设阶段,从源头上控制,许多故障可以被避免或被及时排除。通过对可靠性指标影响因素的分析,确立了可靠性指标的因素集,通过专家打分法确定指标权重大小,并应用模糊综合评价理论建立了直流输电系统可靠性评价体系及模型；向家坝-上海±800kV特高压直流输电工程可靠性指标的实例分析验证了其模型的有效性；最后从强迫停运管理、计划停运管理和建立以可靠性为中心的检修策略三个方面提出了提高直流输电系统可靠性指标的关键措施。
[Abstract]:With the development of HVDC transmission technology in our country, the reliability level of HVDC transmission technology has increased gradually on the safe and reliable operation of power system. This paper analyzes the background and present situation of the reliability of HVDC transmission in China, points out the problems existing in the reliability evaluation and management at present, and applies the concept of LCAM to analyze the relationship between the reliability and the whole life cycle. The reliability management is extended to the planning and design of the system, the procurement of materials and the construction of the capital construction. From the source control, many failures can be avoided or eliminated in time. Through the analysis of the influencing factors of the reliability index, The factor set of reliability index is established, the weight of index is determined by expert scoring method, and the reliability evaluation system and model of HVDC transmission system are established by applying fuzzy comprehensive evaluation theory. The reliability index of Xiangjiaba Shanghai 卤800kV UHV HVDC transmission project is analyzed and the validity of the model is verified. The key measures to improve the reliability index of HVDC transmission system are put forward in the aspects of planned outage management and maintenance strategy based on reliability.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F426.61;F224

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