Reverse DC motors with dependent voltage comparison.

Abstract

Expansion of the range of changes in the shape of the static and dynamic characteristics of DC drives through an electric motor amplifier-motor system can be achieved by using dependent current intercepts - delayed negative current feedbacks with reference voltage proportional to the voltage of the power source or motor speed. At the same time, the effectiveness of the current cutoff significantly increases as a result of a decrease in the reference voltage as the motor load increases and its speed decreases. This provides the possibility of obtaining the mode of operation of the engine to stop at currents equal to the cut-off current, and even lower. The equations of speed characteristics for two variants of the schemes of reversible drives EMU-D with dependent cutoffs, experimental static and dynamic characteristics are given. Figures 5. Bibliographic references 2.