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How to change the speed of DC motor

Author: Time:2018-4-20 9:05:50 Views:

DC motor believes that you are not surprised, the speed of this device can be controlled and adjusted, today's small editor will introduce you how to change the speed of DC motor, interested friends and Xiaobian to find out.

There are three methods for DC motor speed regulation:

First, adjust the armature voltage. Changing the armature voltage to change the speed is a constant torque speed control method with fast dynamic response and is suitable for a wide range of stepless smooth speed control systems.

Secondly, changing the main magnetic flux of the motor can only weaken the magnetic flux and increase the motor speed from the rated speed. It belongs to the constant power speed regulation method, and the dynamic response is slow. Although it can be steplessly smoothed, the speed regulation range is small.

In addition, the motor armature series resistance in the armature loop resistance R is changed to adjust the speed, and only the stepwise speed regulation is provided, the smoothness is poor, the mechanical characteristics are soft, and the efficiency is low.

Knowing the speed of the DC motor is a very strict problem. The different speeds of the motor equipment express the specific working characteristics of the equipment in different time periods. Therefore, it is very important to master the method of changing the speed of the DC motor. I hope you will remember this.


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