Maximum torque control and vector control of permanent magnet synchronous motor

Permanent magnet synchronous motors (PMSM) are gradually replacing DC motors in a wide range of drive applications, high performance control demands are being proposed. This paper investigates various vector control strategies of permanent magnet synchronous motor drives. It also elaborates the concept of its maximum torque control, analyses the relationships between its vector control and maximum torque control under different d and q axes parameters of PMSM, and carries out the operation and realization conditions of its maximum torque control. Some significant theoretical results are obtained.