The effects of redundant control inputs in optimal control

Science in China Series F: Information Sciences - Tập 52 - Trang 1973-1981 - 2009
ZhiSheng Duan1, Lin Huang1, Ying Yang1
1State Key Lab for Turbulence and Complex Systems and Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing, China

Tóm tắt

For a stabilizable system, the extension of the control inputs has no use for stabilizability, but it is important for optimal control. In this paper, a necessary and sufficient condition is presented to strictly decrease the quadratic optimal performance index after control input extensions. A similar result is also provided for H 2 optimal control problem. These results show an essential difference between single-input and multi-input control systems. Several examples are taken to illustrate related problems.

Tài liệu tham khảo

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