Optimal Control for Nonlinear Systems with Sinusoidal Disturbances
The optimal control problem for a class of nonlinear systems affected by additive sinusoidal disturbances is considered. To damp the forced oscillation in an optimal fashion, a sensitivity design approach of optimal controller is proposed. By introducing a sensitivity parameter and expanding power series around it, the optimal control problem for nonlinear systems is transformed into solving a Maclaurin series of optimal control problems for linear systems. By intercepting a finite sum of the optimal control series, a feedforward- feedback suboptimal control law is obtained to escape the complex calculation. The algorithm of solving the suboptimal control law is given as well. Simulation results show that feedforward-feedback optimal control law is more robust with respect to additive disturbances than classical feedback optimal control.
Wei Wang Gong-You Tang
College of Automation and Electrical Engineering Qingdao University of Science Technology Qingdao 26 College of Information Science and Engineering Ocean University of China Qingdao 266071, China
国际会议
青岛
英文
2006-07-21（万方平台首次上网日期，不代表论文的发表时间）