Research on Software RDC Decoding Algorithm and Conditioning Circuit

Inhalt:
The current rotor angle measurement in PMSM control system have the disadvantage of low decoding accuracy and the complex hardware circuit cannot meet the requirements of high power density main control board. By optimizing the control circuit and using a decoding algorithm based on observer, ensure that the surface area of the main control board can be smaller on the basis of the guarantee function, but also improve the decoding accuracy. Finally, through MATLAB simulation and experimental verification show that this algorithm has high anti-interference ability, can accurately obtain the rotor position information.