In today's DC motor, the excitation mode that generates the main pole magnetic field by DC current is called current excitation; If the current excitation is replaced by a permanent magnet to generate the main pole magnetic field, the motor is called a permanent magnet generator. The article aims at ferreting out some problems you might meet while you are operating the sophisticated machine and propose the corresponding solutions.
The working principle of the magnetic coil in the motor is mainly to use the current to generate a magnetic field in the magnetic coil, which interacts with the magnetic field generated by the permanent magnet or electromagnet to generate a magnetic force and drive the rotor to rotate, thus converting electrical energy into mechanical energy.
Permanent Magnet Synchronous Motors (PMSMs) offer exceptional efficiency as brushless motors. Their permanent magnet rotors endow them with higher torque despite their compact frame size and absence of rotor current, granting them significant advantages over AC Induction Motors (AICMs). Leveraging their impressive power-to-size ratio, PMSMs enable the creation of smaller designs without compromising torque output. Overall, PMSMs deliver a compelling combination of reliability, efficiency, and compactness for a wide range of applications.