大型电厂主接线可靠性评估及分析(Ⅰ)——基本模型及基本算法

在研究了现行电厂主接线可靠性评估方法的基础上,提出了多故障状态模型和改进状态空间法的新算法。通过引入“通路代码”概念处理了元件的多故障状态特性,并引入上下限法计算可靠性连续性指标,从而使我们能更深刻、更准确、更全面地分析电厂主接线的可靠性。 实际工程计算表明,本方法具有实用,方便和有效的特点。

THE RELIABILITY EVALUATION AND ANALYSIS OF THE BUS SCHEMES IN THE LARGE POWER-STATION ( I ) - A BASIC MODEL AND METHOD OF CALCULATION

On the basic of studying the available mehtods of the reliability evaluation of power-station bus schemes,a multifailure state model and a new method-the improved state-sapce method are proposed in the paper. The concept of path-word is introduced to deal with the elements multifailure state properties. The upper-lower limit method is used to evaluate the continuity indices of power station bus schemes. The model and the method enable us to analyse the reliability of power station bus schemes profoundly, fully and accurately. The engineering computations indicate the practicability, the convenience and the effectiveness of the proposed method.