一种基于DSP的旋变数字转换器在线自校准方法

In software-based resolver-to-digital converters, parameter deviations of detected envelope signals (amplitude imbalance, dc offset, and nonorthogonal phase shifts) can introduce periodic rotor position estimation errors, leading to significant degradation of control performance of a permanent magnet synchronous machine. To address this issue, an online self-calibration method is proposed in the a...