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Simplified Modeling Approach to Characterize Sudden Load Disturbances in WirelessHART FOPDT Systems
Date Issued
December 18, 2018
Type
Conference Paper
Abstract
This paper presents the simplified modelling approach to characterize sudden load disturbance in WirelessHART™. Two approaches are presented. The model was firstly formulated through Laplace transformation, where the resulting integral equation renders non-linear optimization problems into simple linear optimizations. Experiments were conducted on a coupled tanks system connected through the WirelessHART™ protocol. Based on the initial fit to the experimental results, the second model then places two locally affine relationships, one for the load flow disturbances, and the other for the level measurements to the responses. The extended locally affine model gave on average a 25% reduction in errors, compared to the Laplace-based method, while better captured the non-linear effects resulting from the WirelessHART™.
Citation
2018 15th International Conference on Control Automation Robotics and Vision Icarcv 2018, 1567-1572, 2018