Difference Between BLDC Motor and PMSM Motor
Let us compare BLDC Motor and PMSM Motor
|
Parameter |
BLDC Motor |
PMSM Motor |
|---|---|---|
|
Name |
Brushless Direct Current Motor |
Permanent Magnet Synchronous Motor |
|
Type |
DC motor |
AC synchronous motor |
|
Description |
A DC motor which does not have carbon brushes and commutator assembly. |
AC synchronous motor that uses permanent magnets to provide the necessary field excitation. |
|
Torque |
Lower torque than PMSM motor. |
Has higher torque than BLDC motor. |
|
Efficiency |
Less efficient (Around 85% to 90%) |
More efficient (around 92% to 97%) |
|
Switching losses |
high core losses because of harmonics. |
Less due to less harmonic content. |
|
Torque ripple |
Present |
Absent |
|
Control |
Uses simple control algorithms. |
Uses complex and mathematically intensive controls. |
|
Cost |
less expensive. |
More expensive. |
|
Uses |
Used in hard drives, CD/DVD drives, washing machines, fans, pumps, robotics, etc |
Used in servo drives, traction control, robotics, aerospace, power factor improvement, machine tools, etc. |
Difference Between BLDC Motor and PMSM Motor
BLDC Motor and PMSM Motor form an integral part of the modern-day electronics industry. We know that two types of motors can be used to convert electrical energy into mechanical energy. We talk about these motors when referring to automotive motors. In this article, we will study the motor that uses DC and AC to convert electrical energy into mechanical energy.
Even when dealing with DC motors, we can divide them into certain types like Brushless Direct Current Motor, DC shunt motors, DC series motors, and AC motors like Permanent Magnet Synchronous Motor Motor. In this article, we will focus on Brushless Direct Current Motor and Permanent Magnet Synchronous Motors. We will see the construction and working of each of these types of motors and we will try to analyze the differences between the two. After comparing their work, we will study the Advantages and Disadvantages of the two types of motors.
Table of Content
- BLDC Motor
- PMSM Motor
- BLDC Vs PMSM Motor
- Advantages
- Disadvantages
- Applications