Nonlinear characteristics are very common in marine steam turbine, such as control input constraints and external disturbances. Based on the active disturbance rejection control (ADRC), an anti-windup scheme is proposed to eliminate the undesired effects of nonlinear characteristics in the control system. In this scheme, firstly, a method of setting parameter is designed for nonlinear active disturbance rejection control (NLADRC). Then, two kinds of anti-windup schemes are proposed in this paper for NLADRC in the presence of control input constraints and external disturbances. Finally, simulation study is carried out for a first order delay object with actuator constraints, simulation results show that both schemes can achieve good anti-windup performance. The method is further extended to marine steam turbine control, with simulation results demonstrating that both methods have their own advantages
Wang, Yuan-Qing; Ren, Guang; and Zhang, Jun-Dong
"ANTI-WINDUP SCHEMES FOR NONLINEAR ACTIVE DISTURBANCE REJECTION CONTROL IN MARINE STEAM TURBINE,"
Journal of Marine Science and Technology: Vol. 24
, Article 7.
Available at: https://jmstt.ntou.edu.tw/journal/vol24/iss1/7