AUTOMATIC speed control of DC motors with separate excitation CONTROL With dual-zone based on the principle SLAVE control parameters

摘要

The invention relates to electromechanical systems, and more particularly to a system to stabilize the engine speed direct current, separate excitation, constructed according to the principle of the slave control parameters and can be used to extend the functionality while increasing the regulation range and improve the accuracy of maintaining the engine speed both in static and dynamic modes.; The aim of the invention is to expand the functional capabilities while increasing the speed range; The automatic control system of the engine speed separately excited DC built on the principle of the slave control parameters with high speed and current loops. To achieve this goal it is further introduced setting unit emf motor, the motor emf regulator two comparisons motor field flux loop apparatus, the motor field current regulator, thyristor exciter unit accounting eddy current excitation link communication motor flux with the excitation current sensors excitation current and the motor emf, emf calculating unit composed of scalable amplifier and a multiplier. In the first zone of the engine is controlled by the armature circuit of the machine at a constant flow of excitation, the second zone is carried out flow control excitation of the machine (reduction) at a constant tension anchor. two zones is operated under the control of the motor EMF. The excitation flux controlling circuit counted value machines eddy currents. This control expands the range of adjustment of the engine speed, and thus its functionality for the application.