<p>To enhance the torque density of low-speed, high-torque motors, this paper proposes an asymmetric integrated permanent magnet(AIPM) synchronous motor. Initially, a U-shaped integrated permanent magnet(IPM) motor is designed for the specific operating conditions, followed by finite element analysis and experimental validation. The finite element simulation results for the U-shaped integrated permanent magnet structure are compared with the prototype test results to verify the accuracy of the simulations. Then, an asymmetric interior permanent magnet synchronous motor is designed. Compared with IPM, the proposed AIPM only changes the permanent magnet (PM) configuration under the premise of ensuring the same amount of permanent magnets, and other parameters such as pole number, slot number and volume are exactly the same. The influence of PM position change of AIPM on output torque is analyzed to select the optimal configuration. Finally, utilizing theoretical equations and finite element methods, the torque characteristics of both the IPM and AIPM are examined. The research findings indicate that the proposed AIPM configuration can simultaneously provide higher torque density and lower torque ripple and cogging torque, while also improving the magnetic flux density distribution within the motor. This study is significant for enhancing motor performance.</p>