Dissertation > Excellent graduate degree dissertation topics show

Research on Dynamic Positioning Control Method of a Vessel Based on Nonlinear Model Predictive Control

Author: SuiYuFeng
Tutor: WangYuanHui
School: Harbin Engineering University
Course: Control Theory and Control Engineering
Keywords: Dynamic Positioning Analytic NMPC Constraint Nonlinear Filter GreenDP
CLC: TP273
Type: Master's thesis
Year: 2013
Downloads: 51
Quote: 0
Read: Download Dissertation


With the increasing demand of resources, the traditional land resources can not satisfythe demands, so people expand the vision into the ocean. As a support system for ships,Dynamic Positioning(DP) System which gets more attentions has widely used in offshoreplatforms. As the core of Dynamic Positioning System, the performance of the controlsubsystem has a direct impact for the Dynamic Positioning System. Nonlinear ModelPredictive Control(NMPC) technology is a new control technology, and its applicaition was inindustrial process control early period, and now it has been widely used, because it can handlethe the problem with nonlinear and multi-constraints. The paper introduces the NMPCtechnology into the ship Dynamic Positioning System, and studies the algorithm of NMPC,and finally conbines the ship model and the NMPC technology to design the controller of theDynamic Positioning System. According to the GreenDP’s ideology of the Kongsberg ofNorway, the author has simplified the construction appropriately, and completes its basicfunction of GreenDP.Firstly, the mathematical model of ship Dynamic Positioning System is built. The shipmodel of three degrees of freedom is built which includes the model of ship, andmathematical model of wind, sea wave and sea current in the ocean environment were built.And the parameters of the supply ship are given for use.Secondly, Nonlinear Model Predictive Control algorithm is studied for the ship DynamicPositioning System. The development of the NMPC technology is introduced, and the basictheories of the NMPC technology are given. For the problems of the Dynamic PositioningSystem, the ship model is handled appropriately, and the corresponding constraints of the shipare given. According to the Analytic NMPC algorithm, the controller of the DynamicPositioning System is designed, its stability is proved, and the controller is effective by theway of simulation results.Finally, the paper researched the control system based on GreenDP. GreenDP consists ofthree parts, and they are estimation filter, environment compensator and the NMPC controller.The paper designed the three parts, and the function area of the controllers is illustrated.According to the simulation results, the Dynamic Positioning System based on the ideology ofGreenDP has the advantages in energy conservation.

Related Dissertations

  1. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  2. Robust Control Research on Automotive Engine Idle-Speed,U464
  3. Research on Stability of Hierarchical Sattellite Network,TN927.23
  4. The Expression of TH、 c-fos and Its Transcriptional Regulation in Locus Coeruleus and Adrenal Medulla on an Experimental Rat Model of Liver Depression Syndrome,R241
  5. Adaptive Homopoty Method Using Conjugate Gradient Algorithm for Inversion of Two-dimensional Wave Equation with Well Log Constraint,P631.81
  6. Tracking Cells in High Density Image Sequences Based on Mean Shift Algorithm Combined with Topological Constraint,Q25
  7. The Methode of High Density Cells’ Tracking Based on Topological Constraint Combined with Hungarian Algorithm,Q25
  8. The Research on Budget Binding Softening Problem of the Unique Taste Food Company,F275
  9. Exponential distribution made ??up several Censored Accelerated test of quadratic estimates,O211.3
  10. TWIN BLOCK appliance reconstruction when combined in different stomatognathic muscles and ligaments associated constraint force of impact,R783.5
  11. Design Control Algorithm of A Dynamic Positioning System for the Large Trailing Suction Hopper Dredger,U674.31
  12. A Study on the Time-adverb of San Yan,H141
  13. \,I207.41
  14. Financial Development、Ownership Type and R&D Investment in the Research,F273.1;F832
  15. On Improving Government Performance Evaluation Measures of Green GDP,D630
  16. Lean Construction Management in Project Application,F426.7
  17. Modal Analysis, Finite Element Modeling and Stress Calculation of Boom of 46D Truck-mounted Concrete Pump,TU646
  18. Research of Propulsion System Efficiency for Dynamic Positioning System,U664.3
  19. Study on Thrust Allocation Logic of DP System,U664.3
  20. Research on Site Selection of Distribution Center of Rural Consumer Goods,F224
  21. Research on DP Simulated Operating System for a Deep Sea Semi-submersible Drilling Platform,U674.381

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
© 2012 www.DissertationTopic.Net  Mobile