Comparison between servo motor vs induction motor
The Technological lines separating induction motors from servo motors are beginning blur at many point’s.
An induction motor is an electric motor that works on the principle of electromagnetic induction. An induction motor is the most modest electrical machine from the construction point of view, in the majority of the cases.
A servomotor is a linear actuator or rotary actuator that entitles for accurate control of linear or angular position, acceleration, and velocity.
Here’s a quick look at their traditional difference between servo motor and induction motor, perhaps some common areas.
| Sr. No | Particular | Induction motor | Servo Motor |
|---|---|---|---|
| 1 | Feedback mechanism | Induction motor is an open loop system | Servo motor is closed loop system |
| 2 | Inertia | An induction motor has high inertia | Servo motor has a very low inertia, Hence servo motors are used in applications where instant and accurate positioning of load is required |
| 3 | Stator | Induction motor stator is formed by coils | Servo motor stator is formed with permanent magnet |
| 4 | Application | While in application where at instant position stop is not required induction motor is used. | Servo is very easy to stop at instant,So it is used in position control application |
| 5 | Torque delivery | Induction motor delivers pure uncontrolled torque | Servo motors deliver controlled torque |
| 6 | Speed Control | In induction motors, only speed can be adjusted | Servo motor speed and position can be adjusted and controlled with greater precision |
| 7 | Cost | Induction motor is cheaper compared to servo motor | Servo motor cost is twice compared to induction motor |
Conclusion of servo vs induction motor
Induction and servo motor can be selected based on your area of application and performance and pricing requirement. An induction motor can offer lower cost, reliable, and rugged solutions for single-axis applications with simple motion profiles. Servo motors can offer high dynamic performance and torque density, but at a higher cost.
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