Sensor fault detection and minimum detectable fault analysis for dynamic point-the-bit rotary steerable system

Weiliang Wang; Yanfeng Geng; Jian Sun; Huijie Xu; Li Sheng

doi:10.1016/j.isatra.2021.12.019

Sensor fault detection and minimum detectable fault analysis for dynamic point-the-bit rotary steerable system

ISA Trans. 2022 Aug:127:108-119. doi: 10.1016/j.isatra.2021.12.019. Epub 2021 Dec 21.

Authors

Weiliang Wang¹, Yanfeng Geng², Jian Sun¹, Huijie Xu¹, Li Sheng¹

Affiliations

¹ College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
² College of Control Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China. Electronic address: gengyf@upc.edu.cn.

PMID: 34972545
DOI: 10.1016/j.isatra.2021.12.019

Abstract

In this paper, the sensor fault detection problem considering the drilling disturbances is studied for the dynamic point-the-bit rotary steerable system. Firstly, the DPRSS is modeled as a linear system with the drilling disturbances, including unknown inputs, measurement noises, and model perturbations. Then, a finite-frequency zonotopic fault detection observer is proposed. The finite-frequency range H_- performance and the P-radius criterion are considered to design the observer gains such that the residuals are sensitive to sensor faults and robust against the drilling disturbances simultaneously. Subsequently, the calculation method of minimum detectable faults is presented for the proposed sensor fault detection mechanism. Finally, simulations and experiments are presented to illustrate the effectiveness of the proposed methods.

Keywords: Fault sensitivity; Minimum detectable fault; Rotary steerable system; Sensor fault detection; Zonotopic observer.