AUTOMATIC speed control of DC motors with separate excitation, built on the principle of subsidiarity 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 improve the accuracy of maintaining the engine speed both in static and dynamic modes while expanding functional system capabilities.; The invention aims at improving the accuracy of maintaining the engine speed both in static and dynamic modes while expanding the functionality of the system.; automatic control constant independent of the excitation current based on the principle slave control parameters of the engine speed, the system with high-speed and current loops comprises a setting device, the two comparison devices, the speed regulator, current regulator, thyristor converter unit motor armature circuit, the unit mechanical part of the motor, motor current sensor whose shaft is articulated with the engine speed sensor, whose output is connected to the second input of the first comparator, the first second input of which is connected with the master device, a first comparator output is connected to the input of the speed controller whose output is connected to the first input of the second comparator, the second input of which is connected to the output of the current sensor, whose input is connected to the output link of the anchor motor circuit, the output of the second device comparison connected to the input of the current regulator, the current anchor unit output is connected to the input of the mechanical parts of the engine, the output of which is the engine speed, the output thyristor converter n By connecting to the input link anchor motor circuit. To achieve this goal it is further introduced aperiodic element, an integrator, three operational amplifiers, the input of the first operational amplifier with unity gain connected to the output of the current regulator, the output of the first operational amplifier is connected to a first input of the second operational amplifier whose output is connected to an input of the thyristor converter, the output of the current regulator via the integrator with a time constant equal to a mechanical time constant of the motor is connected to the input aperiodic Cesky element with a time constant equal to the electromagnetic time constant, and the output through the third operational amplifier with unity gain connected to a second input of the second operational amplifier.