Research on asynchronous motor control characteristics based on dual SVPWM back to backthree level converter

The structure and working principle of three-phase back to back converter transmission agent are introduced. Three-level rectifier principle and inverter vector control technology are analyzed. On base of that, three-level dual Space Vector Pulse Width Modulation (SVPWM) AC-DC-AC converter motor control system is constructed. The motor's constant torque and field-weakening operating characteristics are analyzed. The automatic control of energy flowing at four quadrants is achieved in the system. The motor operated at acceleration and deceleration states is carried out in the simulate environment, which validate the reliability of the system.