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Distributed Estimation for Interconnected Systems With Arbitrary Coupling Structures
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DOI：10.1109/TNSE.2024.3382367.png)
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Abstract
En 中文
This paper is concerned with the problem of distributed estimation for time-varying interconnected systems with arbitrary coupling structures. A distributed stability condition requiring only the information from each subsystem and its neighbors is proposed to guarantee the stability of the designed distributed estimator. Then, a simplified condition without the real-time exchange of estimator gains is further proposed to reduce the communication burden. Under distributed stability constraints, the optimal estimator gain is designed by solving a convex optimization problem. Notice that the involved convex optimization problem can be easily solved by standard software packages because the constraints can be transformed into linear matrix inequalities. It is also shown that the designed distributed estimator is scalable for adding or subtracting subsystems. Finally, an illustrative example of a three-tank interconnected system is employed to show the effectiveness of the proposed methods.
Keywords:
Interconnected systems
Stability analysis
Estimation
Couplings
Vectors
Time-varying systems
Optimization
Time-varying interconnected system
distributed stability condition
distributed estimation
optimal estimator
convex optimization
Journal
I
IF:
7.9
Papers:
2.5K
Citations:
10.0K