What is the difference and difference between DC servo motor and AC servo motor?

Servo motors can generally be divided into DC servo and AC servo, many friends are more curious about servo motors, want to understand the difference between the two, Vacuz give you an analysis! Hope it can help everyone!

The advantages of DC servo motor.

1. With good linear adjustment characteristics and fast time response.

2. accurate speed control, torque speed characteristics are very hard, simple principle, easy to use, price advantage.

Disadvantages: brush commutation, speed limitations, additional resistance, generation of wear particles.

AC servo motor with advantages.

1. good speed characteristics, smooth control over the entire speed range, almost no oscillation.

2. high efficiency, more than 90%, no heat; high speed control; accurate position control.

3. constant torque within the rated operating range; low noise; no brush wear, maintenance-free; no wear particles, no sparks, suitable for dust-free, low-inertia strenuous environment.

Disadvantages: control is more complex, PID parameter adjustment requires on-site adjustment of drive parameters, and more connections are required.

Application of DC servo motors: Because the characteristics of DC servo motors are harder than AC servo motors, they are usually used in systems with slightly higher power, such as position control in servo systems.

Application of AC servo motor: The output power of AC servo motor is generally 0.1-100W, and the power frequency is divided into 50Hz, 400Hz, etc. It is widely used in various automatic control, automatic recording and other systems.

The above is the difference between DC servo motor and AC servo motor and different, master these basic knowledge, in order to better use the different motors.

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