Reliability analysis of H-infinity control for a container ship in way-point tracking |
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| Institution: | 1. Faculty of Electrical and Robotic Engineering, University of Shahrood, Shahrood, Iran;2. Department of Civil Engineering, Sistan and Baluchestan University, Zahedan, Iran;1. Department of Neurology, Children''s National Health System, Washington, District of Columbia;2. Division of Pediatric Neurology, Children''s Hospital of Pittsburgh, Pittsburgh, Pennsylvania;3. Division of Pediatric Radiology, Children''s Hospital of Pittsburgh, Pittsburgh, Pennsylvania;4. Division of Newborn Medicine, Children''s Hospital of Pittsburgh, Pittsburgh, Pennsylvania;5. Department of Radiology, Children''s Hospital of Los Angeles, Los Angeles, California;1. Neuroscience Graduate Group, University of Pennsylvania, Philadelphia, PA 19104, USA;2. Dept. Otorhinolaryngology, U. Pennsylvania, Philadelphia, PA 19104, USA;3. Neuroscience, U. Pennsylvania, Philadelphia, PA 19104, USA;4. Bioengineering, U. Pennsylvania, Philadelphia, PA 19104, USA;1. Johann Bernoulli Institute for Mathematics and Computer Science, University of Groningen, 9747AG Groningen, The Netherlands;2. Department of Mathematics, Universitas Gadjah Mada, Yogyakarta, Indonesia |
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| Abstract: | Efficient control of ships in a designed trajectory is always a significant charge for ship maneuverings. The purpose of this paper is to design a robust H∞ controller and a reliability analysis for a container ship in a way-point tracking. First, the H∞ controller is designed for a container ship because of model parameters’ uncertainties and external disturbances such as waves, winds and ocean currents. Then, to evaluate the reliability of the designed controller, a well-known reliability analysis technique is employed to achieve the predefined heading angle overshoot (that is less than 20%) in way-point tracking. To do this, three random variables including wind speed, wind direction and wave direction are considered as the inputs due to their significant effect on overshoot, compared to other variables. The results demonstrate the capability of the designed H∞ controller against modeling uncertainties and external disturbances in way point tracking control. |
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| Keywords: | Ship tracking control Robust control Reliability analysis Response surface |
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