### What parameters should be paid attention to in the design of permanent magnet synchronous motor?

Date：2022-07-15 Author：XINDA MOTOR

**The structure of permanent magnet synchronous motor**

**Air- gap magnetic flux density:**Determined according to the design of asynchronous motors, etc., the design of permanent magnet rotors and the use of special requirements for switching stator windings. In addition, it is assumed that the stator is a slotted stator. The air gap flux density is limited by the saturation of the stator core. In particular, the peak flux density is limited by the width of the gear teeth, while the back of the stator determines the maximum total flux.

**Permanent magnet material:**

**Permanent Magnet Synchronous Motor Design**

**Calculation of self-inductance and mutual inductance :**

**The steps to find the inductance are as follows:**1. Suppose there is a current I in the conductor. 2. Use Biot-Savart's law or Ampere's loop law (if available) to determine that B is sufficiently symmetric. 3. Calculate the total flux connecting all circuits. 4. Multiply the total magnetic flux by the number of loops to obtain the flux linkage, and carry out the design of the permanent magnet synchronous motor by evaluating the required parameters.

**in conclusion**