Efficient on-line parameter estimation in TRANSCEND for nonlinear systems

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Published Mar 26, 2021
Anibal Bregon Belarmino Pulido Gautam Biswas

Abstract

Prognosis and Health Management methodologies require efficient parameter estimation approaches to enable systematic system reconfiguration and adaptive control to accommodate faulty behaviors, and to predict future system states. However, accurate and timely on-line parameter estimation of complex, nonlinear systems is difficult and can be computationally expensive. In this work, we propose a more efficient technique for on-line parameter estimation in TRANSCEND. This new approach is based on previous works on model decomposition and dependency compilation. We generate a set of smaller estimation tasks from the global estimation problem to reduce the computational burden. We tested the approach in a nonlinear three-tank system. Cur- rent results demonstrate that our method is more efficient and it does not compromise on the accuracy in the estimation.

How to Cite

Bregon , A. ., Pulido, B., & Biswas, G. (2021). Efficient on-line parameter estimation in TRANSCEND for nonlinear systems. Annual Conference of the PHM Society, 1(1). Retrieved from https://papers.phmsociety.org/index.php/phmconf/article/view/1509
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Keywords

learning systems, model-based methods

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Technical Papers

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