Title :
Compensation of spatially distributed disturbances in heat conduction systems
Author :
Alt, Simon ; Malchow, Florian ; Sawodny, Oliver
Author_Institution :
Inst. for Syst. Dynamics, Univ. of Stuttgart, Stuttgart, Germany
Abstract :
The article presents an approach for designing a feedforward compensation of a spatially distributed disturbance acting on a boundary controlled one dimensional heat conduction system. The disturbance affects the system behavior via a fixed spatial characteristic meaning that the spatial influence of the time dependent measured disturbance signal is a space dependent model parameter. The compensation is realized by calculating a control input signal which eliminates the influence of the disturbance signal on the output variable. For the compensation the inversion of the distributed parameter system (DPS) using a power series approach combined with a homogenizing system transformation is proposed. To ensure the convergence of the feedforward control and to calculate the compensating input trajectories online a filter for the disturbance signal is designed in this work. The performance of the presented late lumping approach is illustrated by showing and discussing simulation results.
Keywords :
compensation; distributed control; distributed parameter systems; feedforward; filtering theory; heat conduction; DPS; boundary controlled one dimensional heat conduction system; control input signal; distributed parameter system; feedforward compensation; feedforward control; fixed spatial characteristic; homogenizing system transformation; online input trajectory compensation; power series approach; space dependent model parameter; spatially distributed disturbance compensation; system behavior; time dependent measured disturbance signal; Convergence; Equations; Feedforward neural networks; Heating; Mathematical model; Temperature measurement; Trajectory;
Conference_Titel :
Automation Science and Engineering (CASE), 2014 IEEE International Conference on
Conference_Location :
Taipei
DOI :
10.1109/CoASE.2014.6899426