By high frequency injection method and a kind of magnetic anisotropy of PMSM, the rotor saliency position can be calculated in the PMSM sensorless vector control system. 摘要通過注入特定的高頻電壓信號,利用電機的各向異性以確定轉子的凸極位置,在同步電機無感測器矢量控制中,對包括零速度在內的所有速度下都能獲得精確的轉子位置信息。
On account of the imprecision of the mechanical position sensor and the phase-shift problem of an existing sensorless method, a novel sensorless strategy is proposed. 鑒於位置感測器的不精確和一種現存的無位置感測器方案的移相困難,提出了一種新的無位置感測器方案。