Source identification of plant-wide faults based on k nearest neighbor time delay estimation

作者：Stockmann Markus^*; Haber Robert; Schmitz Ulrich

来源：Journal of Process Control, 2012, 22(3): 583-598.

DOI：10.1016/j.jprocont.2012.01.005

• Control performance monitoring
• Plant-wide faults
• Fault propagation
• Source identification
• Time delay estimation

The identification of plant-wide faults is a very important topic as it enables plant operators to decrease rejections or to increase the product quality. This paper shows a fault propagation approach for this field of interest based on time delay estimation. Due to the fact that the estimation of time delays in multiple-input single-output systems or nonlinear systems is either impossible or very difficult with known methods, a new method based on k nearest neighbor imputation was developed and is validated in this paper theoretically. The effectiveness of the identification algorithm is demonstrated on several simulations and on an industrial hydrocracker plant.

• 出版日期2012-3