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<p>In today's DC <a href="https://www.pm-motor.com/" target="_blank">motor</a>s, the excitation method that uses direct current to generate the main pole <a href="https://www.pm-motor.com/" target="_blank">magnet</a>ic field is called current excitation; if the <a href="https://www.pm-motor.com/" target="_blank">permanent</a> magnet is used to replace the current excitation to generate the main pole magnetic field, this type of motor is called a permanent magnet motor.</p><p><br></p><p><strong>Permanent magnet synchronous motors</strong> have the advantages of simple structure, small size, light weight, small loss, high efficiency, and high power factor. They are mainly used for high-performance servo drive systems and DC motor updates that require fast response, wide speed range and accurate positioning Replace the motor. The permanent magnet synchronous motor can be integrally installed on the wheel axle to form an integrated direct drive system, that is, one wheel axle is a drive unit, and a gear box is omitted. The applications of permanent magnet synchronous motors are so extensive. Let us take a look at what are the advantages of <a href="https://www.pm-motor.com/products" rel="noopener noreferrer" target="_blank">permanent magnet synchronous motors</a>.</p><p><br></p><p>1. Because the permanent magnet synchronous motor does not have a gear box, the bogie system can be freely designed: such as a flexible bogie and a single-axle bogie, which greatly improves the dynamic performance of the train;</p><p>2. Permanent magnet synchronous motor itself has high power efficiency and high power factor;</p><p>3. Permanent magnet synchronous motor allows a large overload current and significantly improves reliability;</p><p>4. The entire transmission system of the permanent magnet synchronous motor is light in weight, the unsprung weight is also lighter than that of the traditional wheel drive, and the power per unit weight is large;</p><p>5. The permanent magnet synchronous motor system adopts a fully enclosed structure, no transmission gear wear, no transmission gear noise, no lubricant, no maintenance;</p><p>6. The permanent magnet synchronous motor generates less heat, so the motor cooling system has a simple structure, small size and low noise.</p><p><br></p><p>The above are some of the product advantages of permanent magnet synchronous motors. Hope to help you better understand <a href="https://www.pm-motor.com/products" rel="noopener noreferrer" target="_blank">permanent magnet synchronous motors</a>.</p>
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