配电网全寿命周期可靠性评估和管理问题研究

在配电网的规划过程中,因为缺乏统计数据只能进行理论可靠性的计算和评估,但现有的可靠性评估指标显得比较粗旷、且没有针对性,不能很好地体现不同业务范畴(规划、维护和运行)内的可靠性管理问题。文章基于理论可靠性评估的优化模型提出了全寿命周期可靠性的概念以及指标体系。基于全寿命周期可靠性概念,提出通过效益成本比来优选可靠性提升项目,并将可靠性目标分解到个业务范畴以精细化可靠性管理。以沿海某城市为例,演示了文中提出的全寿命周期可靠性管理方法的可行性,总结了该方法的优缺点。

Research on Lifecycle Reliability Evaluation and Management of Distribution Network

In the planning process of the distribution network, due to the lack of statistical data, only theoretical reliability calculations and evaluations can be performed. However, the existing reliability assessment indicators are relatively rough and untargeted, and cannot well reflect the reliability management issues in different business areas (planning, maintenance, and operation).Based on the optimization model of theoretical reliability evaluation, the concept and index system of life-cycle reliability are proposed in this paper. Cost-benefit ratio method is proposed to optimize reliability improvement projects based on life-cycle reliability. Then, the reliability goal of whole system can be decomposed into individual business areas to refine reliability management. Finally, taking a coastal city as an example, the feasibility of the life-cycle reliability management method proposed in this paper is demonstrated, and the advantages and disadvantages of the method are summarized.