In this paper,we propose two data-driven adaptive tuning(DDAT)approaches of PID-type ILC.First,we use a compact form iterative dynamic linearization(CFIDL)method to transfer the original nonlinear system into a equivalent linear data model,and we design an objective function to dynamically tune the learning gains of ILC law.Then,by optimizing the designed objective function,a CFIDL based DDAT method is proposed.This DDAT method only uses the real I/O data and doesn't need to know any mathematical model infor-mation.On this basis,we introduce a partial form iterative dynamic linearization(PFIDL)method to extend the research results,and propose a PFIDL based DDAT method.Both the proposed DDAT methods can help the PID-type ILC have a better robustness against to the uncertainties.Finally,the effectiveness of the two proposed DDAT-based ILC methods is verified by the simulations.
关键词
数据驱动方法/参数的自适应整定/迭代学习控制/优化
Key words
data-driven methods/adaptive tuning of learning gains/iterative learning con-trol/optimizing