Article

Optimal thrust allocation logic design of dynamic positioning with pseudo-inverse method

Journal of Shanghai Jiaotong University (Science) 04/2012; 16(1):118-123. DOI:10.1007/s12204-011-1104-9 pp.118-123

ABSTRACT This article presents a method named pseudo-inverse to solve the optimal thrust allocation of dynamic positioning (DP) system, This article presents a method named pseudo-inverse to solve the optimal thrust allocation of dynamic positioning (DP) system,
proposes to optimally determine the azimuth angle of thrusters instead of man-control or semi-auto control, and combines with proposes to optimally determine the azimuth angle of thrusters instead of man-control or semi-auto control, and combines with
the pseudo-inverse methods to get the optimal solutions for dynamic positioning control system. It is able to greatly reduce the pseudo-inverse methods to get the optimal solutions for dynamic positioning control system. It is able to greatly reduce
the risk of manual mode. Three different kinds of modes are proposed and detailedly illuminated, and can be used to solve the risk of manual mode. Three different kinds of modes are proposed and detailedly illuminated, and can be used to solve
much more complex nonlinear constraint problems, such as typical forbidden vector boundary. Several illustrative examples much more complex nonlinear constraint problems, such as typical forbidden vector boundary. Several illustrative examples
are provided to demonstrate the effectiveness and correctness of the proposed thrust allocation modes. are provided to demonstrate the effectiveness and correctness of the proposed thrust allocation modes.

Key wordsthrust allocation (TA)–dynamic positioning (DP) system–pseudo-inverse method (PIM)–thrust loss Key wordsthrust allocation (TA)–dynamic positioning (DP) system–pseudo-inverse method (PIM)–thrust loss

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Keywords

allocation modes
 
article presents
 
azimuth angle
 
complex nonlinear constraint problems
 
detailedly illuminated
 
different kinds
 
dynamic positioning
 
dynamic positioning control system
 
illustrative examples
 
Key wordsthrust allocation
 
man-control
 
manual mode
 
modes
 
optimal solutions
 
optimally
 
PIM)–thrust loss
 
PIM)–thrust loss Key wordsthrust allocation
 
pseudo-inverse methods
 
semi-auto control
 
TA)–dynamic positioning