Portal de Periódicos da CAPES

Time and frequency domain convergence properties in iterative learning control

2002; Taylor & Francis; Volume: 75; Issue: 14 Linguagem: Inglês

10.1080/00207170210159122

1366-5820

Mikael Norrlöf, Svante Gunnarsson,

Advanced Surface Polishing Techniques

The convergence properties of iterative learning control (ILC) algorithms are considered. The analysis is carried out in a framework using linear iterative systems, which enables several results from the theory of linear systems to be applied. This makes it possible to analyse both first-order and high-order ILC algorithms in both the time and frequency domains. The time and frequency domain results can also be tied together in a clear way. Results are also given for the iterationvariant case, i.e. when the dynamics of the system to be controlled or the ILC algorithm itself changes from iteration to iteration.