Emergency stop control requirements for DC permanent magnet motors

We have previously learned about methods to avoid clogging of DC permanent magnet motors. From this we can see that we need to regularly replace lubricating oil and wear parts, and also strengthen motor maintenance. When we use a DC permanent magnet motor, we should have a thorough understanding of its emergency stop control requirements. The following editor will introduce to you the emergency stop control requirements of a DC permanent magnet motor!

DC permanent magnet motor is a new type of DC motor developed in recent years with the development of microprocessor technology and new power electronic devices with high switching frequency and low power consumption, as well as optimized control methods and low-cost, high magnetic balance permanent magnet materials. motor.

The emergency stop control requirements of DC permanent magnet motors are as follows:

1. In order to better solve the problem of DC permanent magnet motor, we need to know the characteristics of the riding load and the specific requirements for use.

2. The motor drive circuit controlled by the microcontroller needs to have a power supply reversal function, such as a bridge circuit composed of four transistors, or a forward and reverse circuit composed of relays.

3. When motor braking is required, the control circuit will switch the short circuit to the motor reversal state. When the motor speed drops to 0, the power supply will be stopped when reversing, and the motor will stop.

What we need to pay attention to is: because of the load change, the time required from the beginning of reverse direction to the motor speed dropping to 0 is not fixed. During the entire process, there is a speed sensor. Otherwise, more complex control techniques, such as adaptive control, are required.

The DC motor not only maintains the good speed performance of the traditional DC permanent magnet motor, but also has no sliding contact and commutation sparks, and has the advantages of high reliability, long life and low noise. Therefore, it is widely used in various industries, especially in the fields of aerospace, CNC machine tools, robots, electric vehicles, computer peripherals and household appliances.

The above is the relevant knowledge about the emergency stop control requirements of DC permanent magnet motors. After everyone has read it, I believe that it can provide you with the help in the future use process!