DC separately excited machine controller

Abstract

The invention is applied to the field of a motor, and especially relates to a DC separately excited machine controller. The DC separately excited machine controller comprises a speed proportion integration modulation unit, a first current proportion integration adjusting circuit, a pulse width modulation unit and a DC motor which are successively connected. The two ends of a speed negative feedback circuit are respectively connected with the speed proportion integration modulation unit and the DC motor, the two ends of an armature current control unit are respectively connected with the input end and the output end of the DC motor, and an excitation current control unit is connected with the output end of the DC motor and a system given excitation current output end. Through applying the technical scheme provided by the invention, the purposes of preventing the DC motor from being affected by a temperature factor and preventing a body from a landslide are achieved.

Description

technical field [0001] The invention is applied in the field of motors, and in particular relates to a DC separate excitation motor controller. Background technique [0002] Due to its good speed regulation performance and hard mechanical characteristics, DC separately excited motors are widely used in various engineering equipment. The DC separately-excited motor controller is an electronic device used to control the start, speed regulation, and braking of the DC separately-excited motor, and is used in conjunction with the DC separately-excited motor. In the prior art, on the one hand, the robustness of the excitation current of the DC motor is not good, so the excitation internal resistance becomes smaller in different temperature environments, such as low temperature environments, and the excitation current becomes larger, and the highest value of the motor is The speed cannot meet the requirement. On the other hand, when the car body is in the process of climbing or s...

AI Technical Summary

Problems solved by technology

In the prior art, on the one hand, the robustness of the excitation current of the DC motor is not good, so the excitation internal resistance becomes smaller in different temperature environments, such as low temperature environments, and the excitation current becomes larger, and the highest value of the motor is The speed cannot meet the requirements

On the other hand, when the car body is in the process of climbing or stopping on the slope, if the car body slides down for some reason, it will cause serious accidents, such as car body collision damage or life safety problems for pedestrians behind.

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