Design of Double-closed Regulating System of Rotational Speed and Electric Current
Abstract
In this paper,a double-closed regulating system of rotational speed and electric current is designed.The magnetic circular circuit adopts silicon rectifier of bridge type and the armature circular circuit adopts silicon-controlled rectifier of three-phase bridge.
The two regulating instrument of rotational speed and current adopts PI regulator with engineering methed achieving the anticipated goal of fine stability and no error. Then, the feedback of the current close is adopted to limit impact current in dynamic course. Meanshile ,the indifferential feedback can be led to the regulator ,in order to limit the high speed .Finally,the auto control system MATLAB technology is applicated for correction.
Keywords: double-colsed speed regulating system; PI regulator; feedcack of current close; MATLAB emulation