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近年来发展的核电厂瞬态识别技术,可为操纵员提供处于发展阶段的故障信息,有助于了解核电厂状态并及时采取相应的操作动作,保证核电厂的安全运行。将瞬态过程曲线分为两段,前段利用聚类方法用于快速识别,后段利用提取的瞬态过程的特征进行更准确的识别。利用待识别瞬态与参考瞬态间的模糊距离描述二者的相近程度,可以消除噪声等扰动的影响,并得到更符合认知习惯的结果。利用高温气冷堆核电厂仿真机的故障数据验证瞬态识别方法的有效性。
In recent years, the development of NPP transient identification technology can provide operators with fault information at the development stage, which helps to understand the status of NPPs and timely take corresponding operation actions to ensure the safe operation of NPPs. The transient process curve is divided into two sections, the first section uses the clustering method for rapid identification, and the second section uses the extracted characteristics of the transient process for more accurate identification. Using the fuzzy distance between the transient to be identified and the reference transient to describe the similarities between the two can eliminate the influence of noise and other perturbations and get the result that is more in line with the cognitive habit. The validity of the transient identification method is verified by the fault data of the simulator of the HTGR nuclear power plant.