Author :
Vahedipour, Abbas ; Bobis, James P.
Author_Institution :
Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA
Abstract :
A simulation comparison of autopilots based on proportional plus integral plus derivative (PID) and pseudoderivative feedback (PDF) algorithms showed the superiority of PDF autopilots over PID ones. An autopilot based on the PDF algorithm had a greater ability to resist load disturbances, which is important in course keeping. Smooth rudder activity and heading responses with smaller overshoots were observed with the PDF autopilot in the case of course changing. The effect of the order of ship dynamics and nonlinearity effects in the ship dynamics showed that better performance can be achieved with the PDF autopilot
Keywords :
feedback; position control; ships; three-term control; transport computer control; PID algorithms; course changing; nonlinearity effects; pseudoderivative feedback algorithms; rudder activity; ship dynamics; smart autopilots; Adaptive control; Automatic control; Control systems; Control theory; Low pass filters; Marine vehicles; Programmable control; Regulators; Stability; Three-term control;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254390
