Research On Control Methods Of Position System Of Examination Platform Of Anti-rolling Tank

The examination platform of anti-rolling tank is an important experiment facility to research and design anti-rolling tank. As the Platform can simulate factual movement of the vessel, it is suitable to study the movement and the control rules of the tank, as well as measure stability efficiency. The device is a kind of special complex system. So far the country has no such test equipments as so large scale. This paper goes on deep design DSP controller of the examination platform and research of the roll position system.At first mathematical model of roll position system was made, and parameters were calculated in this paper. This paper simulated and studied respond of the platform to regular wave and analyzed the reason of bad respond under small cycle wave. The simulation of system that had changed machine parameters were made, and validity of this method was proved.Aiming at time-changing parameters and nonlinear factors, accurate mathematical model couldn't be easily made in electro-hydraulic servo system. The satisfied control effect was not easily achieved under routine PID controller. This paper introduced a neural network adaptive PID controller in the roll electro-hydraulic position system, and simulated its control effect. By contrast with routine PID controller advantages of it were proved.Moreover this paper researched deeply into the design of DSP digital controller of examination platform. The reset circuit, clock circuit, power circuit, level switch circuit, memorizer interface circuit, A/D switch circuit, D/A switch circuit and serial communication interface circuit were designed. The functions of hardware had been debugged successfully. In software part every modules of DSP control system was programmed with DSP assemble language. The whole of system software was finished, and it had been debugged successfully in DSP software development tool—CCS.At last this paper researched into the experiments of roll position system, and designed external hardware and software. At the same time this paper carried out experiments under regular waves, and analyzed experiment curves.