Starting system of extra-large power DC amplitude-voltage motor

Abstract

The invention discloses a starting system of an extra-large power DC amplitude-voltage motor. The starting system comprises an armature, a logarithm voltage generator, a constant current generator, a self-adaptive time schedule controller, a diode, a capacitor, a resistor, an inductor, and a relay; the positive electrode of a power source is respectively connected with the cathode of the diode, the capacitor and the armature, wherein the anode of the diode is connected with the constant current generator, the other end of the capacitor is respectively connected with the inductor and the resistor, the other end of the inductor is connected with the anode of the diode, the other end of the armature is respectively connected with the resistor, the relay, the constant current generator and the logarithm voltage generator; one end of the relay is connected with the self-adaptive time schedule controller, and the other end of the relay and the self-adaptive time schedule controller are respectively connected with the negative electrode of the power source. Through the adoption of the logarithm voltage generator, the constant current generator and the self-adaptive time schedule controller, the starting process of the motor has the features of being small in starting current, large in torque and short in starting time, not only the motor can be frequently started, but also the starting energy consumption of the motor is reduced.

Description

technical field [0001] The invention relates to a starting device for a motor, in particular to a starting system for a super-high-power DC amplitude voltage motor. Background technique [0002] A DC motor is an electrical machine that realizes the conversion of DC electric energy and mechanical kinetic energy. It usually includes an armature winding and an excitation winding. The excitation winding generates a magnetic field, and the armature winding generates torque. It has excellent speed regulation performance and control characteristics. The high-power DC motor is directly started at full voltage, and the starting current will reach 10 to 20 times the rated current, which will not only cause electrical and mechanical damage to the motor and the driven equipment, shorten the service life, but also have a huge impact on the power supply system. The marine DC power supply system with the battery as the core cannot bear it, which will endanger the safety of the power supply...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a starting system for an ultra-high-power DC amplitude voltage motor, which solves the problems of large starting current, large torque, long time and high power consumption when the ultra-high-power amplitude voltage motor is started.

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