【摘要】 直流系统可靠性统计评价是衡量直流系统技术状况的主要手段。文中在充分地对运行人员进行调研和对直流可靠性评估方法认真研究的基础上,提出了基于事故责任原因的直流系统状态分类和指标体系,详细介绍了基于知识规则推理的直流可靠性算法和开发的分析专家系统。该算法应用的知识规则采用分层结构,在推理策略上综合应用深度和广度优先搜索。通过对实际直流系统进行校验,表明该系统实现了直流系统可靠性分析的智能化,为反映直流系统的供电能力提供了基于事实的参考。更多还原

【Abstract】 Reliability statistical evaluation of direct current (DC) power system is the leading tool to assess its technological status. In this paper, state classification and indices system based on accidental responsibility cause are proposed after an on-the-spot inquiry about operators and earnest research on DC reliability evaluation methods. Then, a DC reliability algorithm using knowledge rule reasoning and expert system developed is introduced in detail. The algorithm adopts a hierarchical structure in knowledge rule while the breadth and depth, first search is integrated in reasoning strategy. The application to a field DC power system shows that the proposed algorithm helps to realize the process of intelligently analyzing and providing factual reference to the power supply ability of the DC system.更多还原