The Optimal Control for D.C. Position Drive System
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A position drive system with D.C. motor is operated using conventional position, speed and current controls. These controls provide a good dynamic and steady-state behaviour, but they do not take in consideration the conversion’s efficiency. It is very well known that in the transient behaviour, as starting and stopping, the conversion efficiency is diminished to the value about 50 per cent, while in the steady-state it is greater. The main goal of the paper is to develop a new optimal type control law, which minimizes the drawn energy used for the covering of a given position trajectory. The synthesis of the optimal energetic control law is accomplished by comparing the two control methods, conventional and optimal. The experimental results, via the simulation procedure, are also presented.
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