GO法在继电保护可靠性评估中的初步应用

基于状态概率公式推导的方法可以对系统进行精确的定量分析，但当系统中包含有共有信号时分析将变得十分复杂。针对该问题，探讨了一种新的定量计算方法，将一种新的可靠性分析方法——GO法引入到电力系统领域中，探讨了该方法在继电保护系统可靠性分析中的应用。结合所开发的GO程序，可十分方便快捷地对系统进行精确的定量与定性分析。基于故障树法对同一系统的分析结果验证了GO法在继电保护可靠性分析中的可用性与正确性。最后，通过对2种方法特点的比较，阐明了GO法的特点和优势。

Application of GO Methodology in Reliability Assessment of Protective Relays

The system can be quantitatively and accurately analyzed based on the derivation of the status probability formula. However, when the system contains shared signals, this method may become very complicated. For this reason, a reliability assessment method, called the GO methodology, is introduced to the field of protective relay system reliability assessment. The new quantitative calculation method circumvents the complicated procedures in the conventional GO method. This new algorithm has been tested on the GO program. In addition, the fault tree analysis method is also used to analyze the same system, and the analysis results are completely in agreement with the new algorithm based on the traditional GO method. Finally, the two methods are compared and the result shows that the new algorithm based on traditional GO method has superior performance over the fault tree analysis method.