Fault Estimation for Nonlinear Systems Based on Intermediate Estimators

WEI Yuheng; TONG Dongbing; CHEN Qiaoyu

doi:10.21656/1000-0887.410335

Volume 42 Issue 11

Nov. 2021

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WEI Yuheng, TONG Dongbing, CHEN Qiaoyu. Fault Estimation for Nonlinear Systems Based on Intermediate Estimators[J]. Applied Mathematics and Mechanics, 2021, 42(11): 1213-1220. doi: 10.21656/1000-0887.410335

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Fault Estimation for Nonlinear Systems Based on Intermediate Estimators

doi: 10.21656/1000-0887.410335

1. School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, P.R.China;
2. School of Mathematics, Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, P.R.China

Funds:

The National Natural Science Foundation of China(61673257)

Received Date: 2020-10-28
Rev Recd Date: 2021-04-20

Available Online: 2021-12-07

Abstract

Abstract

Based on the intermediate estimator, the fault estimation problem was studied for the nonlinear systems with time delays and multiple faults. Intermediate variables and intermediate estimators were designed to realize fault estimation and avoid the limitation of observer matching conditions. According to the Lyapunov stability theory and the linear matrix inequality method, the error systems are asymptotically stable. At last, through the MATLAB simulation, the effectiveness of the proposed method was verified.
- fault estimation,
- intermediate estimator,
- linear matrix inequality,
- nonlinear system

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References(17)

References

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