Comparative analysis of regulated electric drives with valve motors.

The paper deals with the issues of comparative analysis of the quality of speed-controlled electric drives with permanent magnet motors, which are most often used in complex technological machines. The functional and structural diagrams of drives of this type are presented, which are built according to circuits of different number of current circuits (with three current sensors, with one current sensor and without current sensors) used in automated production. Simulation of the operation of electric drives in accordance with the requirements of the standard has been carried out, which makes it possible to analyze the efficiency of a specific circuit. The results of circuit simulation of electric drives with valve electric motors, built according to various schemes, are presented. Conclusions on one of the main quality characteristics (pulsations at low speeds) of each of the considered schemes are given. [ABSTRACT FROM AUTHOR]