Robust Virtual Sensors Design Based on Jordan Canonical Form
Alexey Zhirabok, Alexander Zuev, Alexander Timoshenko · International Journal of Recent Engineering Science · 2023
The problem of robust virtual sensor design in linear systems under disturbance is studied. The problem is solved in two different ways: in the first way, the linear model insensitive to the disturbance is designed and then used as a virtual sensor; in the second one, the model has minimal sensitivity to the disturbance, and the sliding mode observer is constructed. The relations allowing to design virtual sensor of minimal dimension estimating given component of the system's state vector are obtained. The well-known example of the three-tank system illustrates the theoretical results.