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SVPWM control of permanent magnet synchronous motor based on Infineon microcontroller XC164_ FOC_ of
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SVPWM - control the PMSM with Infineon XC164CM
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DSP2812 permanent magnet synchronous AC servo motor control system based on vector control
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Using the full digital control method, the full digital AC servo system with permanent magnet AC motor as the control object is gradually replacing the DC servo system with DC motor as the control object and the analog AC servo system with analog control technology. All digital AC servo system adopts vector control method, which can achieve excellent control quality. High speed digital signal processor TMS320F2812 can be used to control the position, speed and armature current of AC motor. The purpose of vector control is to improve the performance of torque control, and the final implementation is still implemented in the stator current (AC) control. Because all the physical quantities (voltage, current, electromotive force and magnetomotive force) on the stator side are alternating current, the space vector rotates synchronously in space, so it is not convenient to adjust, control and calculate. Therefore, with the help of coordinate transformation, the physical quantities are transformed from the static coordinate system to the synchronous rotating coordinate system. When you stand in the synchronous rotating coordinate system, all the space vectors of the motor become stop vectors, and all the space vectors in the synchronous coordinate system become direct flow. According to several forms of torque formula, you can find the difference between the torque and each component of the controlled vector According to the relationship between them, the DC given quantity, which is the component value of controlled vector needed by torque control, can be calculated in real time. According to these given quantitative real-time control, the control performance of DC motor can be achieved. Because these DC feedings are non-existent and fictitious in physics, it is necessary to transform the above DC feedings into actual AC feedings in the process of inverse transformation from rotating coordinate system to static coordinate system, and control the AC feedings in the three-phase stator coordinate system to make the actual value equal to the given value.
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