Optimal control of electric drive of trawl winch

• Main Author: Сергей Павлович Голиков
• Format: Article
• Language: English
• Published: PC Technology Center 2013-09-01
• Series: Tehnologìčnij Audit ta Rezervi Virobnictva
• Subjects: trawl winch; electric drive; gain
• Online Access: http://journals.uran.ua/tarp/article/view/18407

In this paper, an important technical problem of determining the optimal methods to control the electric drive of the trawl winch is solved and the result of solving the problem with the accepted assumptions is given. The main objective of the study is to develop mathematical software of development and design of automation systems of trawling. For the development and improvement of trawling automation tools it is very important to create adequate mathematical models that allow obtaining the control laws of individual elements and the entire complex as a whole. Most researches in this area are focused mainly on the studies of the trawl system only, considering the vessel just as an energy source for towing the trawl. The processes within the propulsion system and the drive of the trawl winch are neglected. Calculation and numerical simulation of the gain of the trawl winch electric drive during winding the warp over the pulley were conducted in the paper using the mathematical theory of control systems design and optimal control theory. The calculations take into account the radius of winding and the increase in the moment of inertia of the pulley. The numerical solution of differential equations allowed obtaining the dependencies of the drive gain on the time. It is shown that the change of the coefficient is the same at various values of the winding time.