Rearsch Of Vector Control System For Induction Motor Based On TMS320F2812

Vector transformation control is developed based on two-axis theory, electromechanical energy conversion and coordinate transformation theory. Stator current can be decomposed into two components that one is named excitation current component and the other is named torque current component under synchronous circular coordinate system based on rotor field orientation. Then the magnetic field and torque can be separately controlled by controlling the two current components like separately excited DC motor.In this dissertation the research focuses on a vector controll variable-frequency speed control system based on TMS320F2812. The principle and realization method of vector control and SVPWM (space vector pulse width modulation) have been analyzed. For vector control the analysis of induction motor mathematic models and control equations under three-phase static coordinate system, two-phase static coordinate system and circular coordinate system is presented in the dissertation, and then the control equation under synchronous circular...